diff --git a/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/coroutine.ql b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/coroutine.ql
new file mode 100644
index 000000000000..bb9ca91c04d6
--- /dev/null
+++ b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/coroutine.ql
@@ -0,0 +1,18 @@
+class Function extends @function {
+ string toString() { none() }
+}
+
+class Type extends @type {
+ string toString() { none() }
+}
+
+class Variable extends @variable {
+ string toString() { none() }
+}
+
+from Function func, Type traits, Variable handle, Variable promise
+where
+ coroutine(func, traits) and
+ coroutine_placeholder_variable(handle, 1, func) and
+ coroutine_placeholder_variable(promise, 2, func)
+select func, traits, handle, promise
diff --git a/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/old.dbscheme b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/old.dbscheme
new file mode 100644
index 000000000000..7ff6a6e53dbc
--- /dev/null
+++ b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/old.dbscheme
@@ -0,0 +1,2315 @@
+
+/**
+ * An invocation of the compiler. Note that more than one file may be
+ * compiled per invocation. For example, this command compiles three
+ * source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * The `id` simply identifies the invocation, while `cwd` is the working
+ * directory from which the compiler was invoked.
+ */
+compilations(
+ /**
+ * An invocation of the compiler. Note that more than one file may
+ * be compiled per invocation. For example, this command compiles
+ * three source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ */
+ unique int id : @compilation,
+ string cwd : string ref
+);
+
+/**
+ * The arguments that were passed to the extractor for a compiler
+ * invocation. If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then typically there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | *path to extractor*
+ * 1 | `--mimic`
+ * 2 | `/usr/bin/gcc`
+ * 3 | `-c`
+ * 4 | f1.c
+ * 5 | f2.c
+ * 6 | f3.c
+ */
+#keyset[id, num]
+compilation_args(
+ int id : @compilation ref,
+ int num : int ref,
+ string arg : string ref
+);
+
+/**
+ * The source files that are compiled by a compiler invocation.
+ * If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | f1.c
+ * 1 | f2.c
+ * 2 | f3.c
+ *
+ * Note that even if those files `#include` headers, those headers
+ * do not appear as rows.
+ */
+#keyset[id, num]
+compilation_compiling_files(
+ int id : @compilation ref,
+ int num : int ref,
+ int file : @file ref
+);
+
+/**
+ * The time taken by the extractor for a compiler invocation.
+ *
+ * For each file `num`, there will be rows for
+ *
+ * kind | seconds
+ * ---- | ---
+ * 1 | CPU seconds used by the extractor frontend
+ * 2 | Elapsed seconds during the extractor frontend
+ * 3 | CPU seconds used by the extractor backend
+ * 4 | Elapsed seconds during the extractor backend
+ */
+#keyset[id, num, kind]
+compilation_time(
+ int id : @compilation ref,
+ int num : int ref,
+ /* kind:
+ 1 = frontend_cpu_seconds
+ 2 = frontend_elapsed_seconds
+ 3 = extractor_cpu_seconds
+ 4 = extractor_elapsed_seconds
+ */
+ int kind : int ref,
+ float seconds : float ref
+);
+
+/**
+ * An error or warning generated by the extractor.
+ * The diagnostic message `diagnostic` was generated during compiler
+ * invocation `compilation`, and is the `file_number_diagnostic_number`th
+ * message generated while extracting the `file_number`th file of that
+ * invocation.
+ */
+#keyset[compilation, file_number, file_number_diagnostic_number]
+diagnostic_for(
+ int diagnostic : @diagnostic ref,
+ int compilation : @compilation ref,
+ int file_number : int ref,
+ int file_number_diagnostic_number : int ref
+);
+
+/**
+ * If extraction was successful, then `cpu_seconds` and
+ * `elapsed_seconds` are the CPU time and elapsed time (respectively)
+ * that extraction took for compiler invocation `id`.
+ */
+compilation_finished(
+ unique int id : @compilation ref,
+ float cpu_seconds : float ref,
+ float elapsed_seconds : float ref
+);
+
+
+/**
+ * External data, loaded from CSV files during snapshot creation. See
+ * [Tutorial: Incorporating external data](https://help.semmle.com/wiki/display/SD/Tutorial%3A+Incorporating+external+data)
+ * for more information.
+ */
+externalData(
+ int id : @externalDataElement,
+ string path : string ref,
+ int column: int ref,
+ string value : string ref
+);
+
+/**
+ * The source location of the snapshot.
+ */
+sourceLocationPrefix(string prefix : string ref);
+
+/**
+ * Information about packages that provide code used during compilation.
+ * The `id` is just a unique identifier.
+ * The `namespace` is typically the name of the package manager that
+ * provided the package (e.g. "dpkg" or "yum").
+ * The `package_name` is the name of the package, and `version` is its
+ * version (as a string).
+ */
+external_packages(
+ unique int id: @external_package,
+ string namespace : string ref,
+ string package_name : string ref,
+ string version : string ref
+);
+
+/**
+ * Holds if File `fileid` was provided by package `package`.
+ */
+header_to_external_package(
+ int fileid : @file ref,
+ int package : @external_package ref
+);
+
+/*
+ * Version history
+ */
+
+svnentries(
+ unique int id : @svnentry,
+ string revision : string ref,
+ string author : string ref,
+ date revisionDate : date ref,
+ int changeSize : int ref
+)
+
+svnaffectedfiles(
+ int id : @svnentry ref,
+ int file : @file ref,
+ string action : string ref
+)
+
+svnentrymsg(
+ unique int id : @svnentry ref,
+ string message : string ref
+)
+
+svnchurn(
+ int commit : @svnentry ref,
+ int file : @file ref,
+ int addedLines : int ref,
+ int deletedLines : int ref
+)
+
+/*
+ * C++ dbscheme
+ */
+
+extractor_version(
+ string codeql_version: string ref,
+ string frontend_version: string ref
+)
+
+@location = @location_stmt | @location_expr | @location_default ;
+
+/**
+ * The location of an element that is not an expression or a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_default(
+ /** The location of an element that is not an expression or a statement. */
+ unique int id: @location_default,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_stmt(
+ /** The location of a statement. */
+ unique int id: @location_stmt,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of an expression.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_expr(
+ /** The location of an expression. */
+ unique int id: @location_expr,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/** An element for which line-count information is available. */
+@sourceline = @file | @function | @variable | @enumconstant | @xmllocatable;
+
+numlines(
+ int element_id: @sourceline ref,
+ int num_lines: int ref,
+ int num_code: int ref,
+ int num_comment: int ref
+);
+
+diagnostics(
+ unique int id: @diagnostic,
+ int severity: int ref,
+ string error_tag: string ref,
+ string error_message: string ref,
+ string full_error_message: string ref,
+ int location: @location_default ref
+);
+
+files(
+ unique int id: @file,
+ string name: string ref
+);
+
+folders(
+ unique int id: @folder,
+ string name: string ref
+);
+
+@container = @folder | @file
+
+containerparent(
+ int parent: @container ref,
+ unique int child: @container ref
+);
+
+fileannotations(
+ int id: @file ref,
+ int kind: int ref,
+ string name: string ref,
+ string value: string ref
+);
+
+inmacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+affectedbymacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+case @macroinvocation.kind of
+ 1 = @macro_expansion
+| 2 = @other_macro_reference
+;
+
+macroinvocations(
+ unique int id: @macroinvocation,
+ int macro_id: @ppd_define ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+macroparent(
+ unique int id: @macroinvocation ref,
+ int parent_id: @macroinvocation ref
+);
+
+// a macroinvocation may be part of another location
+// the way to find a constant expression that uses a macro
+// is thus to find a constant expression that has a location
+// to which a macro invocation is bound
+macrolocationbind(
+ int id: @macroinvocation ref,
+ int location: @location ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_unexpanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_expanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+/*
+case @function.kind of
+ 1 = @normal_function
+| 2 = @constructor
+| 3 = @destructor
+| 4 = @conversion_function
+| 5 = @operator
+| 6 = @builtin_function // GCC built-in functions, e.g. __builtin___memcpy_chk
+| 7 = @user_defined_literal
+| 8 = @deduction_guide
+;
+*/
+
+functions(
+ unique int id: @function,
+ string name: string ref,
+ int kind: int ref
+);
+
+function_entry_point(
+ int id: @function ref,
+ unique int entry_point: @stmt ref
+);
+
+function_return_type(
+ int id: @function ref,
+ int return_type: @type ref
+);
+
+/**
+ * If `function` is a coroutine, then this gives the `std::experimental::resumable_traits`
+ * instance associated with it, and the variables representing the `handle` and `promise`
+ * for it.
+ */
+coroutine(
+ unique int function: @function ref,
+ int traits: @type ref
+);
+
+/*
+case @coroutine_placeholder_variable.kind of
+ 1 = @handle
+| 2 = @promise
+| 3 = @init_await_resume
+;
+*/
+
+coroutine_placeholder_variable(
+ unique int placeholder_variable: @variable ref,
+ int kind: int ref,
+ int function: @function ref
+)
+
+/** The `new` function used for allocating the coroutine state, if any. */
+coroutine_new(
+ unique int function: @function ref,
+ int new: @function ref
+);
+
+/** The `delete` function used for deallocating the coroutine state, if any. */
+coroutine_delete(
+ unique int function: @function ref,
+ int delete: @function ref
+);
+
+purefunctions(unique int id: @function ref);
+
+function_deleted(unique int id: @function ref);
+
+function_defaulted(unique int id: @function ref);
+
+function_prototyped(unique int id: @function ref)
+
+deduction_guide_for_class(
+ int id: @function ref,
+ int class_template: @usertype ref
+)
+
+member_function_this_type(
+ unique int id: @function ref,
+ int this_type: @type ref
+);
+
+#keyset[id, type_id]
+fun_decls(
+ int id: @fun_decl,
+ int function: @function ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+fun_def(unique int id: @fun_decl ref);
+fun_specialized(unique int id: @fun_decl ref);
+fun_implicit(unique int id: @fun_decl ref);
+fun_decl_specifiers(
+ int id: @fun_decl ref,
+ string name: string ref
+)
+#keyset[fun_decl, index]
+fun_decl_throws(
+ int fun_decl: @fun_decl ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+/* an empty throw specification is different from none */
+fun_decl_empty_throws(unique int fun_decl: @fun_decl ref);
+fun_decl_noexcept(
+ int fun_decl: @fun_decl ref,
+ int constant: @expr ref
+);
+fun_decl_empty_noexcept(int fun_decl: @fun_decl ref);
+fun_decl_typedef_type(
+ unique int fun_decl: @fun_decl ref,
+ int typedeftype_id: @usertype ref
+);
+
+param_decl_bind(
+ unique int id: @var_decl ref,
+ int index: int ref,
+ int fun_decl: @fun_decl ref
+);
+
+#keyset[id, type_id]
+var_decls(
+ int id: @var_decl,
+ int variable: @variable ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+var_def(unique int id: @var_decl ref);
+var_decl_specifiers(
+ int id: @var_decl ref,
+ string name: string ref
+)
+is_structured_binding(unique int id: @variable ref);
+
+type_decls(
+ unique int id: @type_decl,
+ int type_id: @type ref,
+ int location: @location_default ref
+);
+type_def(unique int id: @type_decl ref);
+type_decl_top(
+ unique int type_decl: @type_decl ref
+);
+
+namespace_decls(
+ unique int id: @namespace_decl,
+ int namespace_id: @namespace ref,
+ int location: @location_default ref,
+ int bodylocation: @location_default ref
+);
+
+case @using.kind of
+ 1 = @using_declaration
+| 2 = @using_directive
+| 3 = @using_enum_declaration
+;
+
+usings(
+ unique int id: @using,
+ int element_id: @element ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+/** The element which contains the `using` declaration. */
+using_container(
+ int parent: @element ref,
+ int child: @using ref
+);
+
+static_asserts(
+ unique int id: @static_assert,
+ int condition : @expr ref,
+ string message : string ref,
+ int location: @location_default ref,
+ int enclosing : @element ref
+);
+
+// each function has an ordered list of parameters
+#keyset[id, type_id]
+#keyset[function, index, type_id]
+params(
+ int id: @parameter,
+ int function: @functionorblock ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+overrides(
+ int new: @function ref,
+ int old: @function ref
+);
+
+#keyset[id, type_id]
+membervariables(
+ int id: @membervariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+globalvariables(
+ int id: @globalvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+localvariables(
+ int id: @localvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+autoderivation(
+ unique int var: @variable ref,
+ int derivation_type: @type ref
+);
+
+orphaned_variables(
+ int var: @localvariable ref,
+ int function: @function ref
+)
+
+enumconstants(
+ unique int id: @enumconstant,
+ int parent: @usertype ref,
+ int index: int ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+
+@variable = @localscopevariable | @globalvariable | @membervariable;
+
+@localscopevariable = @localvariable | @parameter;
+
+/**
+ * Built-in types are the fundamental types, e.g., integral, floating, and void.
+ */
+case @builtintype.kind of
+ 1 = @errortype
+| 2 = @unknowntype
+| 3 = @void
+| 4 = @boolean
+| 5 = @char
+| 6 = @unsigned_char
+| 7 = @signed_char
+| 8 = @short
+| 9 = @unsigned_short
+| 10 = @signed_short
+| 11 = @int
+| 12 = @unsigned_int
+| 13 = @signed_int
+| 14 = @long
+| 15 = @unsigned_long
+| 16 = @signed_long
+| 17 = @long_long
+| 18 = @unsigned_long_long
+| 19 = @signed_long_long
+// ... 20 Microsoft-specific __int8
+// ... 21 Microsoft-specific __int16
+// ... 22 Microsoft-specific __int32
+// ... 23 Microsoft-specific __int64
+| 24 = @float
+| 25 = @double
+| 26 = @long_double
+| 27 = @complex_float // C99-specific _Complex float
+| 28 = @complex_double // C99-specific _Complex double
+| 29 = @complex_long_double // C99-specific _Complex long double
+| 30 = @imaginary_float // C99-specific _Imaginary float
+| 31 = @imaginary_double // C99-specific _Imaginary double
+| 32 = @imaginary_long_double // C99-specific _Imaginary long double
+| 33 = @wchar_t // Microsoft-specific
+| 34 = @decltype_nullptr // C++11
+| 35 = @int128 // __int128
+| 36 = @unsigned_int128 // unsigned __int128
+| 37 = @signed_int128 // signed __int128
+| 38 = @float128 // __float128
+| 39 = @complex_float128 // _Complex __float128
+| 40 = @decimal32 // _Decimal32
+| 41 = @decimal64 // _Decimal64
+| 42 = @decimal128 // _Decimal128
+| 43 = @char16_t
+| 44 = @char32_t
+| 45 = @std_float32 // _Float32
+| 46 = @float32x // _Float32x
+| 47 = @std_float64 // _Float64
+| 48 = @float64x // _Float64x
+| 49 = @std_float128 // _Float128
+// ... 50 _Float128x
+| 51 = @char8_t
+| 52 = @float16 // _Float16
+| 53 = @complex_float16 // _Complex _Float16
+| 54 = @fp16 // __fp16
+| 55 = @std_bfloat16 // __bf16
+| 56 = @std_float16 // std::float16_t
+| 57 = @complex_std_float32 // _Complex _Float32
+| 58 = @complex_float32x // _Complex _Float32x
+| 59 = @complex_std_float64 // _Complex _Float64
+| 60 = @complex_float64x // _Complex _Float64x
+| 61 = @complex_std_float128 // _Complex _Float128
+;
+
+builtintypes(
+ unique int id: @builtintype,
+ string name: string ref,
+ int kind: int ref,
+ int size: int ref,
+ int sign: int ref,
+ int alignment: int ref
+);
+
+/**
+ * Derived types are types that are directly derived from existing types and
+ * point to, refer to, transform type data to return a new type.
+ */
+case @derivedtype.kind of
+ 1 = @pointer
+| 2 = @reference
+| 3 = @type_with_specifiers
+| 4 = @array
+| 5 = @gnu_vector
+| 6 = @routineptr
+| 7 = @routinereference
+| 8 = @rvalue_reference // C++11
+// ... 9 type_conforming_to_protocols deprecated
+| 10 = @block
+;
+
+derivedtypes(
+ unique int id: @derivedtype,
+ string name: string ref,
+ int kind: int ref,
+ int type_id: @type ref
+);
+
+pointerishsize(unique int id: @derivedtype ref,
+ int size: int ref,
+ int alignment: int ref);
+
+arraysizes(
+ unique int id: @derivedtype ref,
+ int num_elements: int ref,
+ int bytesize: int ref,
+ int alignment: int ref
+);
+
+typedefbase(
+ unique int id: @usertype ref,
+ int type_id: @type ref
+);
+
+/**
+ * An instance of the C++11 `decltype` operator. For example:
+ * ```
+ * int a;
+ * decltype(1+a) b;
+ * ```
+ * Here `expr` is `1+a`.
+ *
+ * Sometimes an additional pair of parentheses around the expression
+ * would change the semantics of this decltype, e.g.
+ * ```
+ * struct A { double x; };
+ * const A* a = new A();
+ * decltype( a->x ); // type is double
+ * decltype((a->x)); // type is const double&
+ * ```
+ * (Please consult the C++11 standard for more details).
+ * `parentheses_would_change_meaning` is `true` iff that is the case.
+ */
+#keyset[id, expr]
+decltypes(
+ int id: @decltype,
+ int expr: @expr ref,
+ int base_type: @type ref,
+ boolean parentheses_would_change_meaning: boolean ref
+);
+
+/*
+case @usertype.kind of
+ 1 = @struct
+| 2 = @class
+| 3 = @union
+| 4 = @enum
+| 5 = @typedef // classic C: typedef typedef type name
+| 6 = @template
+| 7 = @template_parameter
+| 8 = @template_template_parameter
+| 9 = @proxy_class // a proxy class associated with a template parameter
+// ... 10 objc_class deprecated
+// ... 11 objc_protocol deprecated
+// ... 12 objc_category deprecated
+| 13 = @scoped_enum
+| 14 = @using_alias // a using name = type style typedef
+;
+*/
+
+usertypes(
+ unique int id: @usertype,
+ string name: string ref,
+ int kind: int ref
+);
+
+usertypesize(
+ unique int id: @usertype ref,
+ int size: int ref,
+ int alignment: int ref
+);
+
+usertype_final(unique int id: @usertype ref);
+
+usertype_uuid(
+ unique int id: @usertype ref,
+ string uuid: string ref
+);
+
+mangled_name(
+ unique int id: @declaration ref,
+ int mangled_name : @mangledname,
+ boolean is_complete: boolean ref
+);
+
+is_pod_class(unique int id: @usertype ref);
+is_standard_layout_class(unique int id: @usertype ref);
+
+is_complete(unique int id: @usertype ref);
+
+is_class_template(unique int id: @usertype ref);
+class_instantiation(
+ int to: @usertype ref,
+ int from: @usertype ref
+);
+class_template_argument(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+class_template_argument_value(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_proxy_class_for(
+ unique int id: @usertype ref,
+ unique int templ_param_id: @usertype ref
+);
+
+type_mentions(
+ unique int id: @type_mention,
+ int type_id: @type ref,
+ int location: @location ref,
+ // a_symbol_reference_kind from the frontend.
+ int kind: int ref
+);
+
+is_function_template(unique int id: @function ref);
+function_instantiation(
+ unique int to: @function ref,
+ int from: @function ref
+);
+function_template_argument(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+function_template_argument_value(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_variable_template(unique int id: @variable ref);
+variable_instantiation(
+ unique int to: @variable ref,
+ int from: @variable ref
+);
+variable_template_argument(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+variable_template_argument_value(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+routinetypes(
+ unique int id: @routinetype,
+ int return_type: @type ref
+);
+
+routinetypeargs(
+ int routine: @routinetype ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+ptrtomembers(
+ unique int id: @ptrtomember,
+ int type_id: @type ref,
+ int class_id: @type ref
+);
+
+/*
+ specifiers for types, functions, and variables
+
+ "public",
+ "protected",
+ "private",
+
+ "const",
+ "volatile",
+ "static",
+
+ "pure",
+ "virtual",
+ "sealed", // Microsoft
+ "__interface", // Microsoft
+ "inline",
+ "explicit",
+
+ "near", // near far extension
+ "far", // near far extension
+ "__ptr32", // Microsoft
+ "__ptr64", // Microsoft
+ "__sptr", // Microsoft
+ "__uptr", // Microsoft
+ "dllimport", // Microsoft
+ "dllexport", // Microsoft
+ "thread", // Microsoft
+ "naked", // Microsoft
+ "microsoft_inline", // Microsoft
+ "forceinline", // Microsoft
+ "selectany", // Microsoft
+ "nothrow", // Microsoft
+ "novtable", // Microsoft
+ "noreturn", // Microsoft
+ "noinline", // Microsoft
+ "noalias", // Microsoft
+ "restrict", // Microsoft
+*/
+
+specifiers(
+ unique int id: @specifier,
+ unique string str: string ref
+);
+
+typespecifiers(
+ int type_id: @type ref,
+ int spec_id: @specifier ref
+);
+
+funspecifiers(
+ int func_id: @function ref,
+ int spec_id: @specifier ref
+);
+
+varspecifiers(
+ int var_id: @accessible ref,
+ int spec_id: @specifier ref
+);
+
+explicit_specifier_exprs(
+ unique int func_id: @function ref,
+ int constant: @expr ref
+)
+
+attributes(
+ unique int id: @attribute,
+ int kind: int ref,
+ string name: string ref,
+ string name_space: string ref,
+ int location: @location_default ref
+);
+
+case @attribute.kind of
+ 0 = @gnuattribute
+| 1 = @stdattribute
+| 2 = @declspec
+| 3 = @msattribute
+| 4 = @alignas
+// ... 5 @objc_propertyattribute deprecated
+;
+
+attribute_args(
+ unique int id: @attribute_arg,
+ int kind: int ref,
+ int attribute: @attribute ref,
+ int index: int ref,
+ int location: @location_default ref
+);
+
+case @attribute_arg.kind of
+ 0 = @attribute_arg_empty
+| 1 = @attribute_arg_token
+| 2 = @attribute_arg_constant
+| 3 = @attribute_arg_type
+| 4 = @attribute_arg_constant_expr
+| 5 = @attribute_arg_expr
+;
+
+attribute_arg_value(
+ unique int arg: @attribute_arg ref,
+ string value: string ref
+);
+attribute_arg_type(
+ unique int arg: @attribute_arg ref,
+ int type_id: @type ref
+);
+attribute_arg_constant(
+ unique int arg: @attribute_arg ref,
+ int constant: @expr ref
+)
+attribute_arg_expr(
+ unique int arg: @attribute_arg ref,
+ int expr: @expr ref
+)
+attribute_arg_name(
+ unique int arg: @attribute_arg ref,
+ string name: string ref
+);
+
+typeattributes(
+ int type_id: @type ref,
+ int spec_id: @attribute ref
+);
+
+funcattributes(
+ int func_id: @function ref,
+ int spec_id: @attribute ref
+);
+
+varattributes(
+ int var_id: @accessible ref,
+ int spec_id: @attribute ref
+);
+
+stmtattributes(
+ int stmt_id: @stmt ref,
+ int spec_id: @attribute ref
+);
+
+@type = @builtintype
+ | @derivedtype
+ | @usertype
+ /* TODO | @fixedpointtype */
+ | @routinetype
+ | @ptrtomember
+ | @decltype;
+
+unspecifiedtype(
+ unique int type_id: @type ref,
+ int unspecified_type_id: @type ref
+);
+
+member(
+ int parent: @type ref,
+ int index: int ref,
+ int child: @member ref
+);
+
+@enclosingfunction_child = @usertype | @variable | @namespace
+
+enclosingfunction(
+ unique int child: @enclosingfunction_child ref,
+ int parent: @function ref
+);
+
+derivations(
+ unique int derivation: @derivation,
+ int sub: @type ref,
+ int index: int ref,
+ int super: @type ref,
+ int location: @location_default ref
+);
+
+derspecifiers(
+ int der_id: @derivation ref,
+ int spec_id: @specifier ref
+);
+
+/**
+ * Contains the byte offset of the base class subobject within the derived
+ * class. Only holds for non-virtual base classes, but see table
+ * `virtual_base_offsets` for offsets of virtual base class subobjects.
+ */
+direct_base_offsets(
+ unique int der_id: @derivation ref,
+ int offset: int ref
+);
+
+/**
+ * Contains the byte offset of the virtual base class subobject for class
+ * `super` within a most-derived object of class `sub`. `super` can be either a
+ * direct or indirect base class.
+ */
+#keyset[sub, super]
+virtual_base_offsets(
+ int sub: @usertype ref,
+ int super: @usertype ref,
+ int offset: int ref
+);
+
+frienddecls(
+ unique int id: @frienddecl,
+ int type_id: @type ref,
+ int decl_id: @declaration ref,
+ int location: @location_default ref
+);
+
+@declaredtype = @usertype ;
+
+@declaration = @function
+ | @declaredtype
+ | @variable
+ | @enumconstant
+ | @frienddecl;
+
+@member = @membervariable
+ | @function
+ | @declaredtype
+ | @enumconstant;
+
+@locatable = @diagnostic
+ | @declaration
+ | @ppd_include
+ | @ppd_define
+ | @macroinvocation
+ /*| @funcall*/
+ | @xmllocatable
+ | @attribute
+ | @attribute_arg;
+
+@namedscope = @namespace | @usertype;
+
+@element = @locatable
+ | @file
+ | @folder
+ | @specifier
+ | @type
+ | @expr
+ | @namespace
+ | @initialiser
+ | @stmt
+ | @derivation
+ | @comment
+ | @preprocdirect
+ | @fun_decl
+ | @var_decl
+ | @type_decl
+ | @namespace_decl
+ | @using
+ | @namequalifier
+ | @specialnamequalifyingelement
+ | @static_assert
+ | @type_mention
+ | @lambdacapture;
+
+@exprparent = @element;
+
+comments(
+ unique int id: @comment,
+ string contents: string ref,
+ int location: @location_default ref
+);
+
+commentbinding(
+ int id: @comment ref,
+ int element: @element ref
+);
+
+exprconv(
+ int converted: @expr ref,
+ unique int conversion: @expr ref
+);
+
+compgenerated(unique int id: @element ref);
+
+/**
+ * `destructor_call` destructs the `i`'th entity that should be
+ * destructed following `element`. Note that entities should be
+ * destructed in reverse construction order, so for a given `element`
+ * these should be called from highest to lowest `i`.
+ */
+#keyset[element, destructor_call]
+#keyset[element, i]
+synthetic_destructor_call(
+ int element: @element ref,
+ int i: int ref,
+ int destructor_call: @routineexpr ref
+);
+
+namespaces(
+ unique int id: @namespace,
+ string name: string ref
+);
+
+namespace_inline(
+ unique int id: @namespace ref
+);
+
+namespacembrs(
+ int parentid: @namespace ref,
+ unique int memberid: @namespacembr ref
+);
+
+@namespacembr = @declaration | @namespace;
+
+exprparents(
+ int expr_id: @expr ref,
+ int child_index: int ref,
+ int parent_id: @exprparent ref
+);
+
+expr_isload(unique int expr_id: @expr ref);
+
+@cast = @c_style_cast
+ | @const_cast
+ | @dynamic_cast
+ | @reinterpret_cast
+ | @static_cast
+ ;
+
+/*
+case @conversion.kind of
+ 0 = @simple_conversion // a numeric conversion, qualification conversion, or a reinterpret_cast
+| 1 = @bool_conversion // conversion to 'bool'
+| 2 = @base_class_conversion // a derived-to-base conversion
+| 3 = @derived_class_conversion // a base-to-derived conversion
+| 4 = @pm_base_class_conversion // a derived-to-base conversion of a pointer to member
+| 5 = @pm_derived_class_conversion // a base-to-derived conversion of a pointer to member
+| 6 = @glvalue_adjust // an adjustment of the type of a glvalue
+| 7 = @prvalue_adjust // an adjustment of the type of a prvalue
+;
+*/
+/**
+ * Describes the semantics represented by a cast expression. This is largely
+ * independent of the source syntax of the cast, so it is separate from the
+ * regular expression kind.
+ */
+conversionkinds(
+ unique int expr_id: @cast ref,
+ int kind: int ref
+);
+
+@conversion = @cast
+ | @array_to_pointer
+ | @parexpr
+ | @reference_to
+ | @ref_indirect
+ | @temp_init
+ | @c11_generic
+ ;
+
+/*
+case @funbindexpr.kind of
+ 0 = @normal_call // a normal call
+| 1 = @virtual_call // a virtual call
+| 2 = @adl_call // a call whose target is only found by ADL
+;
+*/
+iscall(
+ unique int caller: @funbindexpr ref,
+ int kind: int ref
+);
+
+numtemplatearguments(
+ unique int expr_id: @expr ref,
+ int num: int ref
+);
+
+specialnamequalifyingelements(
+ unique int id: @specialnamequalifyingelement,
+ unique string name: string ref
+);
+
+@namequalifiableelement = @expr | @namequalifier;
+@namequalifyingelement = @namespace
+ | @specialnamequalifyingelement
+ | @usertype;
+
+namequalifiers(
+ unique int id: @namequalifier,
+ unique int qualifiableelement: @namequalifiableelement ref,
+ int qualifyingelement: @namequalifyingelement ref,
+ int location: @location_default ref
+);
+
+varbind(
+ int expr: @varbindexpr ref,
+ int var: @accessible ref
+);
+
+funbind(
+ int expr: @funbindexpr ref,
+ int fun: @function ref
+);
+
+@any_new_expr = @new_expr
+ | @new_array_expr;
+
+@new_or_delete_expr = @any_new_expr
+ | @delete_expr
+ | @delete_array_expr;
+
+@prefix_crement_expr = @preincrexpr | @predecrexpr;
+
+@postfix_crement_expr = @postincrexpr | @postdecrexpr;
+
+@increment_expr = @preincrexpr | @postincrexpr;
+
+@decrement_expr = @predecrexpr | @postdecrexpr;
+
+@crement_expr = @increment_expr | @decrement_expr;
+
+@un_arith_op_expr = @arithnegexpr
+ | @unaryplusexpr
+ | @conjugation
+ | @realpartexpr
+ | @imagpartexpr
+ | @crement_expr
+ ;
+
+@un_bitwise_op_expr = @complementexpr;
+
+@un_log_op_expr = @notexpr;
+
+@un_op_expr = @address_of
+ | @indirect
+ | @un_arith_op_expr
+ | @un_bitwise_op_expr
+ | @builtinaddressof
+ | @vec_fill
+ | @un_log_op_expr
+ | @co_await
+ | @co_yield
+ ;
+
+@bin_log_op_expr = @andlogicalexpr | @orlogicalexpr;
+
+@cmp_op_expr = @eq_op_expr | @rel_op_expr;
+
+@eq_op_expr = @eqexpr | @neexpr;
+
+@rel_op_expr = @gtexpr
+ | @ltexpr
+ | @geexpr
+ | @leexpr
+ | @spaceshipexpr
+ ;
+
+@bin_bitwise_op_expr = @lshiftexpr
+ | @rshiftexpr
+ | @andexpr
+ | @orexpr
+ | @xorexpr
+ ;
+
+@p_arith_op_expr = @paddexpr
+ | @psubexpr
+ | @pdiffexpr
+ ;
+
+@bin_arith_op_expr = @addexpr
+ | @subexpr
+ | @mulexpr
+ | @divexpr
+ | @remexpr
+ | @jmulexpr
+ | @jdivexpr
+ | @fjaddexpr
+ | @jfaddexpr
+ | @fjsubexpr
+ | @jfsubexpr
+ | @minexpr
+ | @maxexpr
+ | @p_arith_op_expr
+ ;
+
+@bin_op_expr = @bin_arith_op_expr
+ | @bin_bitwise_op_expr
+ | @cmp_op_expr
+ | @bin_log_op_expr
+ ;
+
+@op_expr = @un_op_expr
+ | @bin_op_expr
+ | @assign_expr
+ | @conditionalexpr
+ ;
+
+@assign_arith_expr = @assignaddexpr
+ | @assignsubexpr
+ | @assignmulexpr
+ | @assigndivexpr
+ | @assignremexpr
+ ;
+
+@assign_bitwise_expr = @assignandexpr
+ | @assignorexpr
+ | @assignxorexpr
+ | @assignlshiftexpr
+ | @assignrshiftexpr
+ ;
+
+@assign_pointer_expr = @assignpaddexpr
+ | @assignpsubexpr
+ ;
+
+@assign_op_expr = @assign_arith_expr
+ | @assign_bitwise_expr
+ | @assign_pointer_expr
+ ;
+
+@assign_expr = @assignexpr | @assign_op_expr | @blockassignexpr
+
+/*
+ Binary encoding of the allocator form.
+
+ case @allocator.form of
+ 0 = plain
+ | 1 = alignment
+ ;
+*/
+
+/**
+ * The allocator function associated with a `new` or `new[]` expression.
+ * The `form` column specified whether the allocation call contains an alignment
+ * argument.
+ */
+expr_allocator(
+ unique int expr: @any_new_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/*
+ Binary encoding of the deallocator form.
+
+ case @deallocator.form of
+ 0 = plain
+ | 1 = size
+ | 2 = alignment
+ | 4 = destroying_delete
+ ;
+*/
+
+/**
+ * The deallocator function associated with a `delete`, `delete[]`, `new`, or
+ * `new[]` expression. For a `new` or `new[]` expression, the deallocator is the
+ * one used to free memory if the initialization throws an exception.
+ * The `form` column specifies whether the deallocation call contains a size
+ * argument, and alignment argument, or both.
+ */
+expr_deallocator(
+ unique int expr: @new_or_delete_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/**
+ * Holds if the `@conditionalexpr` is of the two operand form
+ * `guard ? : false`.
+ */
+expr_cond_two_operand(
+ unique int cond: @conditionalexpr ref
+);
+
+/**
+ * The guard of `@conditionalexpr` `guard ? true : false`
+ */
+expr_cond_guard(
+ unique int cond: @conditionalexpr ref,
+ int guard: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` holds. For the two operand form
+ * `guard ?: false` consider using `expr_cond_guard` instead.
+ */
+expr_cond_true(
+ unique int cond: @conditionalexpr ref,
+ int true: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` does not hold.
+ */
+expr_cond_false(
+ unique int cond: @conditionalexpr ref,
+ int false: @expr ref
+);
+
+/** A string representation of the value. */
+values(
+ unique int id: @value,
+ string str: string ref
+);
+
+/** The actual text in the source code for the value, if any. */
+valuetext(
+ unique int id: @value ref,
+ string text: string ref
+);
+
+valuebind(
+ int val: @value ref,
+ unique int expr: @expr ref
+);
+
+fieldoffsets(
+ unique int id: @variable ref,
+ int byteoffset: int ref,
+ int bitoffset: int ref
+);
+
+bitfield(
+ unique int id: @variable ref,
+ int bits: int ref,
+ int declared_bits: int ref
+);
+
+/* TODO
+memberprefix(
+ int member: @expr ref,
+ int prefix: @expr ref
+);
+*/
+
+/*
+ kind(1) = mbrcallexpr
+ kind(2) = mbrptrcallexpr
+ kind(3) = mbrptrmbrcallexpr
+ kind(4) = ptrmbrptrmbrcallexpr
+ kind(5) = mbrreadexpr // x.y
+ kind(6) = mbrptrreadexpr // p->y
+ kind(7) = mbrptrmbrreadexpr // x.*pm
+ kind(8) = mbrptrmbrptrreadexpr // x->*pm
+ kind(9) = staticmbrreadexpr // static x.y
+ kind(10) = staticmbrptrreadexpr // static p->y
+*/
+/* TODO
+memberaccess(
+ int member: @expr ref,
+ int kind: int ref
+);
+*/
+
+initialisers(
+ unique int init: @initialiser,
+ int var: @accessible ref,
+ unique int expr: @expr ref,
+ int location: @location_expr ref
+);
+
+braced_initialisers(
+ int init: @initialiser ref
+);
+
+/**
+ * An ancestor for the expression, for cases in which we cannot
+ * otherwise find the expression's parent.
+ */
+expr_ancestor(
+ int exp: @expr ref,
+ int ancestor: @element ref
+);
+
+exprs(
+ unique int id: @expr,
+ int kind: int ref,
+ int location: @location_expr ref
+);
+
+expr_reuse(
+ int reuse: @expr ref,
+ int original: @expr ref,
+ int value_category: int ref
+)
+
+/*
+ case @value.category of
+ 1 = prval
+ | 2 = xval
+ | 3 = lval
+ ;
+*/
+expr_types(
+ int id: @expr ref,
+ int typeid: @type ref,
+ int value_category: int ref
+);
+
+case @expr.kind of
+ 1 = @errorexpr
+| 2 = @address_of // & AddressOfExpr
+| 3 = @reference_to // ReferenceToExpr (implicit?)
+| 4 = @indirect // * PointerDereferenceExpr
+| 5 = @ref_indirect // ReferenceDereferenceExpr (implicit?)
+// ...
+| 8 = @array_to_pointer // (???)
+| 9 = @vacuous_destructor_call // VacuousDestructorCall
+// ...
+| 11 = @assume // Microsoft
+| 12 = @parexpr
+| 13 = @arithnegexpr
+| 14 = @unaryplusexpr
+| 15 = @complementexpr
+| 16 = @notexpr
+| 17 = @conjugation // GNU ~ operator
+| 18 = @realpartexpr // GNU __real
+| 19 = @imagpartexpr // GNU __imag
+| 20 = @postincrexpr
+| 21 = @postdecrexpr
+| 22 = @preincrexpr
+| 23 = @predecrexpr
+| 24 = @conditionalexpr
+| 25 = @addexpr
+| 26 = @subexpr
+| 27 = @mulexpr
+| 28 = @divexpr
+| 29 = @remexpr
+| 30 = @jmulexpr // C99 mul imaginary
+| 31 = @jdivexpr // C99 div imaginary
+| 32 = @fjaddexpr // C99 add real + imaginary
+| 33 = @jfaddexpr // C99 add imaginary + real
+| 34 = @fjsubexpr // C99 sub real - imaginary
+| 35 = @jfsubexpr // C99 sub imaginary - real
+| 36 = @paddexpr // pointer add (pointer + int or int + pointer)
+| 37 = @psubexpr // pointer sub (pointer - integer)
+| 38 = @pdiffexpr // difference between two pointers
+| 39 = @lshiftexpr
+| 40 = @rshiftexpr
+| 41 = @andexpr
+| 42 = @orexpr
+| 43 = @xorexpr
+| 44 = @eqexpr
+| 45 = @neexpr
+| 46 = @gtexpr
+| 47 = @ltexpr
+| 48 = @geexpr
+| 49 = @leexpr
+| 50 = @minexpr // GNU minimum
+| 51 = @maxexpr // GNU maximum
+| 52 = @assignexpr
+| 53 = @assignaddexpr
+| 54 = @assignsubexpr
+| 55 = @assignmulexpr
+| 56 = @assigndivexpr
+| 57 = @assignremexpr
+| 58 = @assignlshiftexpr
+| 59 = @assignrshiftexpr
+| 60 = @assignandexpr
+| 61 = @assignorexpr
+| 62 = @assignxorexpr
+| 63 = @assignpaddexpr // assign pointer add
+| 64 = @assignpsubexpr // assign pointer sub
+| 65 = @andlogicalexpr
+| 66 = @orlogicalexpr
+| 67 = @commaexpr
+| 68 = @subscriptexpr // access to member of an array, e.g., a[5]
+// ... 69 @objc_subscriptexpr deprecated
+// ... 70 @cmdaccess deprecated
+// ...
+| 73 = @virtfunptrexpr
+| 74 = @callexpr
+// ... 75 @msgexpr_normal deprecated
+// ... 76 @msgexpr_super deprecated
+// ... 77 @atselectorexpr deprecated
+// ... 78 @atprotocolexpr deprecated
+| 79 = @vastartexpr
+| 80 = @vaargexpr
+| 81 = @vaendexpr
+| 82 = @vacopyexpr
+// ... 83 @atencodeexpr deprecated
+| 84 = @varaccess
+| 85 = @thisaccess
+// ... 86 @objc_box_expr deprecated
+| 87 = @new_expr
+| 88 = @delete_expr
+| 89 = @throw_expr
+| 90 = @condition_decl // a variable declared in a condition, e.g., if(int x = y > 2)
+| 91 = @braced_init_list
+| 92 = @type_id
+| 93 = @runtime_sizeof
+| 94 = @runtime_alignof
+| 95 = @sizeof_pack
+| 96 = @expr_stmt // GNU extension
+| 97 = @routineexpr
+| 98 = @type_operand // used to access a type in certain contexts (haven't found any examples yet....)
+| 99 = @offsetofexpr // offsetof ::= type and field
+| 100 = @hasassignexpr // __has_assign ::= type
+| 101 = @hascopyexpr // __has_copy ::= type
+| 102 = @hasnothrowassign // __has_nothrow_assign ::= type
+| 103 = @hasnothrowconstr // __has_nothrow_constructor ::= type
+| 104 = @hasnothrowcopy // __has_nothrow_copy ::= type
+| 105 = @hastrivialassign // __has_trivial_assign ::= type
+| 106 = @hastrivialconstr // __has_trivial_constructor ::= type
+| 107 = @hastrivialcopy // __has_trivial_copy ::= type
+| 108 = @hasuserdestr // __has_user_destructor ::= type
+| 109 = @hasvirtualdestr // __has_virtual_destructor ::= type
+| 110 = @isabstractexpr // __is_abstract ::= type
+| 111 = @isbaseofexpr // __is_base_of ::= type type
+| 112 = @isclassexpr // __is_class ::= type
+| 113 = @isconvtoexpr // __is_convertible_to ::= type type
+| 114 = @isemptyexpr // __is_empty ::= type
+| 115 = @isenumexpr // __is_enum ::= type
+| 116 = @ispodexpr // __is_pod ::= type
+| 117 = @ispolyexpr // __is_polymorphic ::= type
+| 118 = @isunionexpr // __is_union ::= type
+| 119 = @typescompexpr // GNU __builtin_types_compatible ::= type type
+| 120 = @intaddrexpr // frontend internal builtin, used to implement offsetof
+// ...
+| 122 = @hastrivialdestructor // __has_trivial_destructor ::= type
+| 123 = @literal
+| 124 = @uuidof
+| 127 = @aggregateliteral
+| 128 = @delete_array_expr
+| 129 = @new_array_expr
+// ... 130 @objc_array_literal deprecated
+// ... 131 @objc_dictionary_literal deprecated
+| 132 = @foldexpr
+// ...
+| 200 = @ctordirectinit
+| 201 = @ctorvirtualinit
+| 202 = @ctorfieldinit
+| 203 = @ctordelegatinginit
+| 204 = @dtordirectdestruct
+| 205 = @dtorvirtualdestruct
+| 206 = @dtorfielddestruct
+// ...
+| 210 = @static_cast
+| 211 = @reinterpret_cast
+| 212 = @const_cast
+| 213 = @dynamic_cast
+| 214 = @c_style_cast
+| 215 = @lambdaexpr
+| 216 = @param_ref
+| 217 = @noopexpr
+// ...
+| 294 = @istriviallyconstructibleexpr
+| 295 = @isdestructibleexpr
+| 296 = @isnothrowdestructibleexpr
+| 297 = @istriviallydestructibleexpr
+| 298 = @istriviallyassignableexpr
+| 299 = @isnothrowassignableexpr
+| 300 = @istrivialexpr
+| 301 = @isstandardlayoutexpr
+| 302 = @istriviallycopyableexpr
+| 303 = @isliteraltypeexpr
+| 304 = @hastrivialmoveconstructorexpr
+| 305 = @hastrivialmoveassignexpr
+| 306 = @hasnothrowmoveassignexpr
+| 307 = @isconstructibleexpr
+| 308 = @isnothrowconstructibleexpr
+| 309 = @hasfinalizerexpr
+| 310 = @isdelegateexpr
+| 311 = @isinterfaceclassexpr
+| 312 = @isrefarrayexpr
+| 313 = @isrefclassexpr
+| 314 = @issealedexpr
+| 315 = @issimplevalueclassexpr
+| 316 = @isvalueclassexpr
+| 317 = @isfinalexpr
+| 319 = @noexceptexpr
+| 320 = @builtinshufflevector
+| 321 = @builtinchooseexpr
+| 322 = @builtinaddressof
+| 323 = @vec_fill
+| 324 = @builtinconvertvector
+| 325 = @builtincomplex
+| 326 = @spaceshipexpr
+| 327 = @co_await
+| 328 = @co_yield
+| 329 = @temp_init
+| 330 = @isassignable
+| 331 = @isaggregate
+| 332 = @hasuniqueobjectrepresentations
+| 333 = @builtinbitcast
+| 334 = @builtinshuffle
+| 335 = @blockassignexpr
+| 336 = @issame
+| 337 = @isfunction
+| 338 = @islayoutcompatible
+| 339 = @ispointerinterconvertiblebaseof
+| 340 = @isarray
+| 341 = @arrayrank
+| 342 = @arrayextent
+| 343 = @isarithmetic
+| 344 = @iscompletetype
+| 345 = @iscompound
+| 346 = @isconst
+| 347 = @isfloatingpoint
+| 348 = @isfundamental
+| 349 = @isintegral
+| 350 = @islvaluereference
+| 351 = @ismemberfunctionpointer
+| 352 = @ismemberobjectpointer
+| 353 = @ismemberpointer
+| 354 = @isobject
+| 355 = @ispointer
+| 356 = @isreference
+| 357 = @isrvaluereference
+| 358 = @isscalar
+| 359 = @issigned
+| 360 = @isunsigned
+| 361 = @isvoid
+| 362 = @isvolatile
+| 363 = @reuseexpr
+| 364 = @istriviallycopyassignable
+| 365 = @isassignablenopreconditioncheck
+| 366 = @referencebindstotemporary
+| 367 = @issameas
+| 368 = @builtinhasattribute
+| 369 = @ispointerinterconvertiblewithclass
+| 370 = @builtinispointerinterconvertiblewithclass
+| 371 = @iscorrespondingmember
+| 372 = @builtiniscorrespondingmember
+| 373 = @isboundedarray
+| 374 = @isunboundedarray
+| 375 = @isreferenceable
+| 378 = @isnothrowconvertible
+| 379 = @referenceconstructsfromtemporary
+| 380 = @referenceconvertsfromtemporary
+| 381 = @isconvertible
+| 382 = @isvalidwinrttype
+| 383 = @iswinclass
+| 384 = @iswininterface
+| 385 = @istriviallyequalitycomparable
+| 386 = @isscopedenum
+| 387 = @istriviallyrelocatable
+| 388 = @datasizeof
+| 389 = @c11_generic
+;
+
+@var_args_expr = @vastartexpr
+ | @vaendexpr
+ | @vaargexpr
+ | @vacopyexpr
+ ;
+
+@builtin_op = @var_args_expr
+ | @noopexpr
+ | @offsetofexpr
+ | @intaddrexpr
+ | @hasassignexpr
+ | @hascopyexpr
+ | @hasnothrowassign
+ | @hasnothrowconstr
+ | @hasnothrowcopy
+ | @hastrivialassign
+ | @hastrivialconstr
+ | @hastrivialcopy
+ | @hastrivialdestructor
+ | @hasuserdestr
+ | @hasvirtualdestr
+ | @isabstractexpr
+ | @isbaseofexpr
+ | @isclassexpr
+ | @isconvtoexpr
+ | @isemptyexpr
+ | @isenumexpr
+ | @ispodexpr
+ | @ispolyexpr
+ | @isunionexpr
+ | @typescompexpr
+ | @builtinshufflevector
+ | @builtinconvertvector
+ | @builtinaddressof
+ | @istriviallyconstructibleexpr
+ | @isdestructibleexpr
+ | @isnothrowdestructibleexpr
+ | @istriviallydestructibleexpr
+ | @istriviallyassignableexpr
+ | @isnothrowassignableexpr
+ | @istrivialexpr
+ | @isstandardlayoutexpr
+ | @istriviallycopyableexpr
+ | @isliteraltypeexpr
+ | @hastrivialmoveconstructorexpr
+ | @hastrivialmoveassignexpr
+ | @hasnothrowmoveassignexpr
+ | @isconstructibleexpr
+ | @isnothrowconstructibleexpr
+ | @hasfinalizerexpr
+ | @isdelegateexpr
+ | @isinterfaceclassexpr
+ | @isrefarrayexpr
+ | @isrefclassexpr
+ | @issealedexpr
+ | @issimplevalueclassexpr
+ | @isvalueclassexpr
+ | @isfinalexpr
+ | @builtinchooseexpr
+ | @builtincomplex
+ | @isassignable
+ | @isaggregate
+ | @hasuniqueobjectrepresentations
+ | @builtinbitcast
+ | @builtinshuffle
+ | @issame
+ | @isfunction
+ | @islayoutcompatible
+ | @ispointerinterconvertiblebaseof
+ | @isarray
+ | @arrayrank
+ | @arrayextent
+ | @isarithmetic
+ | @iscompletetype
+ | @iscompound
+ | @isconst
+ | @isfloatingpoint
+ | @isfundamental
+ | @isintegral
+ | @islvaluereference
+ | @ismemberfunctionpointer
+ | @ismemberobjectpointer
+ | @ismemberpointer
+ | @isobject
+ | @ispointer
+ | @isreference
+ | @isrvaluereference
+ | @isscalar
+ | @issigned
+ | @isunsigned
+ | @isvoid
+ | @isvolatile
+ | @istriviallycopyassignable
+ | @isassignablenopreconditioncheck
+ | @referencebindstotemporary
+ | @issameas
+ | @builtinhasattribute
+ | @ispointerinterconvertiblewithclass
+ | @builtinispointerinterconvertiblewithclass
+ | @iscorrespondingmember
+ | @builtiniscorrespondingmember
+ | @isboundedarray
+ | @isunboundedarray
+ | @isreferenceable
+ | @isnothrowconvertible
+ | @referenceconstructsfromtemporary
+ | @referenceconvertsfromtemporary
+ | @isconvertible
+ | @isvalidwinrttype
+ | @iswinclass
+ | @iswininterface
+ | @istriviallyequalitycomparable
+ | @isscopedenum
+ | @istriviallyrelocatable
+ ;
+
+new_allocated_type(
+ unique int expr: @new_expr ref,
+ int type_id: @type ref
+);
+
+new_array_allocated_type(
+ unique int expr: @new_array_expr ref,
+ int type_id: @type ref
+);
+
+/**
+ * The field being initialized by an initializer expression within an aggregate
+ * initializer for a class/struct/union. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_field_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int field: @membervariable ref,
+ int position: int ref
+);
+
+/**
+ * The index of the element being initialized by an initializer expression
+ * within an aggregate initializer for an array. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_array_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int element_index: int ref,
+ int position: int ref
+);
+
+@ctorinit = @ctordirectinit
+ | @ctorvirtualinit
+ | @ctorfieldinit
+ | @ctordelegatinginit;
+@dtordestruct = @dtordirectdestruct
+ | @dtorvirtualdestruct
+ | @dtorfielddestruct;
+
+
+condition_decl_bind(
+ unique int expr: @condition_decl ref,
+ unique int decl: @declaration ref
+);
+
+typeid_bind(
+ unique int expr: @type_id ref,
+ int type_id: @type ref
+);
+
+uuidof_bind(
+ unique int expr: @uuidof ref,
+ int type_id: @type ref
+);
+
+@runtime_sizeof_or_alignof = @runtime_sizeof | @runtime_alignof | @datasizeof;
+
+sizeof_bind(
+ unique int expr: @runtime_sizeof_or_alignof ref,
+ int type_id: @type ref
+);
+
+code_block(
+ unique int block: @literal ref,
+ unique int routine: @function ref
+);
+
+lambdas(
+ unique int expr: @lambdaexpr ref,
+ string default_capture: string ref,
+ boolean has_explicit_return_type: boolean ref
+);
+
+lambda_capture(
+ unique int id: @lambdacapture,
+ int lambda: @lambdaexpr ref,
+ int index: int ref,
+ int field: @membervariable ref,
+ boolean captured_by_reference: boolean ref,
+ boolean is_implicit: boolean ref,
+ int location: @location_default ref
+);
+
+@funbindexpr = @routineexpr
+ | @new_expr
+ | @delete_expr
+ | @delete_array_expr
+ | @ctordirectinit
+ | @ctorvirtualinit
+ | @ctordelegatinginit
+ | @dtordirectdestruct
+ | @dtorvirtualdestruct;
+
+@varbindexpr = @varaccess | @ctorfieldinit | @dtorfielddestruct;
+@addressable = @function | @variable ;
+@accessible = @addressable | @enumconstant ;
+
+@access = @varaccess | @routineexpr ;
+
+fold(
+ int expr: @foldexpr ref,
+ string operator: string ref,
+ boolean is_left_fold: boolean ref
+);
+
+stmts(
+ unique int id: @stmt,
+ int kind: int ref,
+ int location: @location_stmt ref
+);
+
+case @stmt.kind of
+ 1 = @stmt_expr
+| 2 = @stmt_if
+| 3 = @stmt_while
+| 4 = @stmt_goto
+| 5 = @stmt_label
+| 6 = @stmt_return
+| 7 = @stmt_block
+| 8 = @stmt_end_test_while // do { ... } while ( ... )
+| 9 = @stmt_for
+| 10 = @stmt_switch_case
+| 11 = @stmt_switch
+| 13 = @stmt_asm // "asm" statement or the body of an asm function
+| 15 = @stmt_try_block
+| 16 = @stmt_microsoft_try // Microsoft
+| 17 = @stmt_decl
+| 18 = @stmt_set_vla_size // C99
+| 19 = @stmt_vla_decl // C99
+| 25 = @stmt_assigned_goto // GNU
+| 26 = @stmt_empty
+| 27 = @stmt_continue
+| 28 = @stmt_break
+| 29 = @stmt_range_based_for // C++11
+// ... 30 @stmt_at_autoreleasepool_block deprecated
+// ... 31 @stmt_objc_for_in deprecated
+// ... 32 @stmt_at_synchronized deprecated
+| 33 = @stmt_handler
+// ... 34 @stmt_finally_end deprecated
+| 35 = @stmt_constexpr_if
+| 37 = @stmt_co_return
+;
+
+type_vla(
+ int type_id: @type ref,
+ int decl: @stmt_vla_decl ref
+);
+
+variable_vla(
+ int var: @variable ref,
+ int decl: @stmt_vla_decl ref
+);
+
+if_initialization(
+ unique int if_stmt: @stmt_if ref,
+ int init_id: @stmt ref
+);
+
+if_then(
+ unique int if_stmt: @stmt_if ref,
+ int then_id: @stmt ref
+);
+
+if_else(
+ unique int if_stmt: @stmt_if ref,
+ int else_id: @stmt ref
+);
+
+constexpr_if_initialization(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int init_id: @stmt ref
+);
+
+constexpr_if_then(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int then_id: @stmt ref
+);
+
+constexpr_if_else(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int else_id: @stmt ref
+);
+
+while_body(
+ unique int while_stmt: @stmt_while ref,
+ int body_id: @stmt ref
+);
+
+do_body(
+ unique int do_stmt: @stmt_end_test_while ref,
+ int body_id: @stmt ref
+);
+
+switch_initialization(
+ unique int switch_stmt: @stmt_switch ref,
+ int init_id: @stmt ref
+);
+
+#keyset[switch_stmt, index]
+switch_case(
+ int switch_stmt: @stmt_switch ref,
+ int index: int ref,
+ int case_id: @stmt_switch_case ref
+);
+
+switch_body(
+ unique int switch_stmt: @stmt_switch ref,
+ int body_id: @stmt ref
+);
+
+@stmt_for_or_range_based_for = @stmt_for
+ | @stmt_range_based_for;
+
+for_initialization(
+ unique int for_stmt: @stmt_for_or_range_based_for ref,
+ int init_id: @stmt ref
+);
+
+for_condition(
+ unique int for_stmt: @stmt_for ref,
+ int condition_id: @expr ref
+);
+
+for_update(
+ unique int for_stmt: @stmt_for ref,
+ int update_id: @expr ref
+);
+
+for_body(
+ unique int for_stmt: @stmt_for ref,
+ int body_id: @stmt ref
+);
+
+@stmtparent = @stmt | @expr_stmt ;
+stmtparents(
+ unique int id: @stmt ref,
+ int index: int ref,
+ int parent: @stmtparent ref
+);
+
+ishandler(unique int block: @stmt_block ref);
+
+@cfgnode = @stmt | @expr | @function | @initialiser ;
+
+stmt_decl_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl: @declaration ref
+);
+
+stmt_decl_entry_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl_entry: @element ref
+);
+
+@functionorblock = @function | @stmt_block;
+
+blockscope(
+ unique int block: @stmt_block ref,
+ int enclosing: @functionorblock ref
+);
+
+@jump = @stmt_goto | @stmt_break | @stmt_continue;
+
+@jumporlabel = @jump | @stmt_label | @literal;
+
+jumpinfo(
+ unique int id: @jumporlabel ref,
+ string str: string ref,
+ int target: @stmt ref
+);
+
+preprocdirects(
+ unique int id: @preprocdirect,
+ int kind: int ref,
+ int location: @location_default ref
+);
+case @preprocdirect.kind of
+ 0 = @ppd_if
+| 1 = @ppd_ifdef
+| 2 = @ppd_ifndef
+| 3 = @ppd_elif
+| 4 = @ppd_else
+| 5 = @ppd_endif
+| 6 = @ppd_plain_include
+| 7 = @ppd_define
+| 8 = @ppd_undef
+| 9 = @ppd_line
+| 10 = @ppd_error
+| 11 = @ppd_pragma
+| 12 = @ppd_objc_import
+| 13 = @ppd_include_next
+| 18 = @ppd_warning
+;
+
+@ppd_include = @ppd_plain_include | @ppd_objc_import | @ppd_include_next;
+
+@ppd_branch = @ppd_if | @ppd_ifdef | @ppd_ifndef | @ppd_elif;
+
+preprocpair(
+ int begin : @ppd_branch ref,
+ int elseelifend : @preprocdirect ref
+);
+
+preproctrue(int branch : @ppd_branch ref);
+preprocfalse(int branch : @ppd_branch ref);
+
+preproctext(
+ unique int id: @preprocdirect ref,
+ string head: string ref,
+ string body: string ref
+);
+
+includes(
+ unique int id: @ppd_include ref,
+ int included: @file ref
+);
+
+link_targets(
+ int id: @link_target,
+ int binary: @file ref
+);
+
+link_parent(
+ int element : @element ref,
+ int link_target : @link_target ref
+);
+
+/* XML Files */
+
+xmlEncoding(unique int id: @file ref, string encoding: string ref);
+
+xmlDTDs(
+ unique int id: @xmldtd,
+ string root: string ref,
+ string publicId: string ref,
+ string systemId: string ref,
+ int fileid: @file ref
+);
+
+xmlElements(
+ unique int id: @xmlelement,
+ string name: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlAttrs(
+ unique int id: @xmlattribute,
+ int elementid: @xmlelement ref,
+ string name: string ref,
+ string value: string ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlNs(
+ int id: @xmlnamespace,
+ string prefixName: string ref,
+ string URI: string ref,
+ int fileid: @file ref
+);
+
+xmlHasNs(
+ int elementId: @xmlnamespaceable ref,
+ int nsId: @xmlnamespace ref,
+ int fileid: @file ref
+);
+
+xmlComments(
+ unique int id: @xmlcomment,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int fileid: @file ref
+);
+
+xmlChars(
+ unique int id: @xmlcharacters,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int isCDATA: int ref,
+ int fileid: @file ref
+);
+
+@xmlparent = @file | @xmlelement;
+@xmlnamespaceable = @xmlelement | @xmlattribute;
+
+xmllocations(
+ int xmlElement: @xmllocatable ref,
+ int location: @location_default ref
+);
+
+@xmllocatable = @xmlcharacters
+ | @xmlelement
+ | @xmlcomment
+ | @xmlattribute
+ | @xmldtd
+ | @file
+ | @xmlnamespace;
diff --git a/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/semmlecode.cpp.dbscheme b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/semmlecode.cpp.dbscheme
new file mode 100644
index 000000000000..0fea0ee7026c
--- /dev/null
+++ b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/semmlecode.cpp.dbscheme
@@ -0,0 +1,2319 @@
+
+/**
+ * An invocation of the compiler. Note that more than one file may be
+ * compiled per invocation. For example, this command compiles three
+ * source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * The `id` simply identifies the invocation, while `cwd` is the working
+ * directory from which the compiler was invoked.
+ */
+compilations(
+ /**
+ * An invocation of the compiler. Note that more than one file may
+ * be compiled per invocation. For example, this command compiles
+ * three source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ */
+ unique int id : @compilation,
+ string cwd : string ref
+);
+
+/**
+ * The arguments that were passed to the extractor for a compiler
+ * invocation. If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then typically there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | *path to extractor*
+ * 1 | `--mimic`
+ * 2 | `/usr/bin/gcc`
+ * 3 | `-c`
+ * 4 | f1.c
+ * 5 | f2.c
+ * 6 | f3.c
+ */
+#keyset[id, num]
+compilation_args(
+ int id : @compilation ref,
+ int num : int ref,
+ string arg : string ref
+);
+
+/**
+ * The source files that are compiled by a compiler invocation.
+ * If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | f1.c
+ * 1 | f2.c
+ * 2 | f3.c
+ *
+ * Note that even if those files `#include` headers, those headers
+ * do not appear as rows.
+ */
+#keyset[id, num]
+compilation_compiling_files(
+ int id : @compilation ref,
+ int num : int ref,
+ int file : @file ref
+);
+
+/**
+ * The time taken by the extractor for a compiler invocation.
+ *
+ * For each file `num`, there will be rows for
+ *
+ * kind | seconds
+ * ---- | ---
+ * 1 | CPU seconds used by the extractor frontend
+ * 2 | Elapsed seconds during the extractor frontend
+ * 3 | CPU seconds used by the extractor backend
+ * 4 | Elapsed seconds during the extractor backend
+ */
+#keyset[id, num, kind]
+compilation_time(
+ int id : @compilation ref,
+ int num : int ref,
+ /* kind:
+ 1 = frontend_cpu_seconds
+ 2 = frontend_elapsed_seconds
+ 3 = extractor_cpu_seconds
+ 4 = extractor_elapsed_seconds
+ */
+ int kind : int ref,
+ float seconds : float ref
+);
+
+/**
+ * An error or warning generated by the extractor.
+ * The diagnostic message `diagnostic` was generated during compiler
+ * invocation `compilation`, and is the `file_number_diagnostic_number`th
+ * message generated while extracting the `file_number`th file of that
+ * invocation.
+ */
+#keyset[compilation, file_number, file_number_diagnostic_number]
+diagnostic_for(
+ int diagnostic : @diagnostic ref,
+ int compilation : @compilation ref,
+ int file_number : int ref,
+ int file_number_diagnostic_number : int ref
+);
+
+/**
+ * If extraction was successful, then `cpu_seconds` and
+ * `elapsed_seconds` are the CPU time and elapsed time (respectively)
+ * that extraction took for compiler invocation `id`.
+ */
+compilation_finished(
+ unique int id : @compilation ref,
+ float cpu_seconds : float ref,
+ float elapsed_seconds : float ref
+);
+
+
+/**
+ * External data, loaded from CSV files during snapshot creation. See
+ * [Tutorial: Incorporating external data](https://help.semmle.com/wiki/display/SD/Tutorial%3A+Incorporating+external+data)
+ * for more information.
+ */
+externalData(
+ int id : @externalDataElement,
+ string path : string ref,
+ int column: int ref,
+ string value : string ref
+);
+
+/**
+ * The source location of the snapshot.
+ */
+sourceLocationPrefix(string prefix : string ref);
+
+/**
+ * Information about packages that provide code used during compilation.
+ * The `id` is just a unique identifier.
+ * The `namespace` is typically the name of the package manager that
+ * provided the package (e.g. "dpkg" or "yum").
+ * The `package_name` is the name of the package, and `version` is its
+ * version (as a string).
+ */
+external_packages(
+ unique int id: @external_package,
+ string namespace : string ref,
+ string package_name : string ref,
+ string version : string ref
+);
+
+/**
+ * Holds if File `fileid` was provided by package `package`.
+ */
+header_to_external_package(
+ int fileid : @file ref,
+ int package : @external_package ref
+);
+
+/*
+ * Version history
+ */
+
+svnentries(
+ unique int id : @svnentry,
+ string revision : string ref,
+ string author : string ref,
+ date revisionDate : date ref,
+ int changeSize : int ref
+)
+
+svnaffectedfiles(
+ int id : @svnentry ref,
+ int file : @file ref,
+ string action : string ref
+)
+
+svnentrymsg(
+ unique int id : @svnentry ref,
+ string message : string ref
+)
+
+svnchurn(
+ int commit : @svnentry ref,
+ int file : @file ref,
+ int addedLines : int ref,
+ int deletedLines : int ref
+)
+
+/*
+ * C++ dbscheme
+ */
+
+extractor_version(
+ string codeql_version: string ref,
+ string frontend_version: string ref
+)
+
+@location = @location_stmt | @location_expr | @location_default ;
+
+/**
+ * The location of an element that is not an expression or a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_default(
+ /** The location of an element that is not an expression or a statement. */
+ unique int id: @location_default,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_stmt(
+ /** The location of a statement. */
+ unique int id: @location_stmt,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of an expression.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_expr(
+ /** The location of an expression. */
+ unique int id: @location_expr,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/** An element for which line-count information is available. */
+@sourceline = @file | @function | @variable | @enumconstant | @xmllocatable;
+
+numlines(
+ int element_id: @sourceline ref,
+ int num_lines: int ref,
+ int num_code: int ref,
+ int num_comment: int ref
+);
+
+diagnostics(
+ unique int id: @diagnostic,
+ int severity: int ref,
+ string error_tag: string ref,
+ string error_message: string ref,
+ string full_error_message: string ref,
+ int location: @location_default ref
+);
+
+files(
+ unique int id: @file,
+ string name: string ref
+);
+
+folders(
+ unique int id: @folder,
+ string name: string ref
+);
+
+@container = @folder | @file
+
+containerparent(
+ int parent: @container ref,
+ unique int child: @container ref
+);
+
+fileannotations(
+ int id: @file ref,
+ int kind: int ref,
+ string name: string ref,
+ string value: string ref
+);
+
+inmacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+affectedbymacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+case @macroinvocation.kind of
+ 1 = @macro_expansion
+| 2 = @other_macro_reference
+;
+
+macroinvocations(
+ unique int id: @macroinvocation,
+ int macro_id: @ppd_define ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+macroparent(
+ unique int id: @macroinvocation ref,
+ int parent_id: @macroinvocation ref
+);
+
+// a macroinvocation may be part of another location
+// the way to find a constant expression that uses a macro
+// is thus to find a constant expression that has a location
+// to which a macro invocation is bound
+macrolocationbind(
+ int id: @macroinvocation ref,
+ int location: @location ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_unexpanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_expanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+/*
+case @function.kind of
+ 1 = @normal_function
+| 2 = @constructor
+| 3 = @destructor
+| 4 = @conversion_function
+| 5 = @operator
+| 6 = @builtin_function // GCC built-in functions, e.g. __builtin___memcpy_chk
+| 7 = @user_defined_literal
+| 8 = @deduction_guide
+;
+*/
+
+functions(
+ unique int id: @function,
+ string name: string ref,
+ int kind: int ref
+);
+
+function_entry_point(
+ int id: @function ref,
+ unique int entry_point: @stmt ref
+);
+
+function_return_type(
+ int id: @function ref,
+ int return_type: @type ref
+);
+
+/**
+ * If `function` is a coroutine, then this gives the `std::experimental::resumable_traits`
+ * instance associated with it, and the variables representing the `handle` and `promise`
+ * for it.
+ */
+coroutine(
+ unique int function: @function ref,
+ int traits: @type ref,
+ int handle: @variable ref,
+ int promise: @variable ref
+);
+
+/** The `new` function used for allocating the coroutine state, if any. */
+coroutine_new(
+ unique int function: @function ref,
+ int new: @function ref
+);
+
+/** The `delete` function used for deallocating the coroutine state, if any. */
+coroutine_delete(
+ unique int function: @function ref,
+ int delete: @function ref
+);
+
+purefunctions(unique int id: @function ref);
+
+function_deleted(unique int id: @function ref);
+
+function_defaulted(unique int id: @function ref);
+
+function_prototyped(unique int id: @function ref)
+
+deduction_guide_for_class(
+ int id: @function ref,
+ int class_template: @usertype ref
+)
+
+member_function_this_type(
+ unique int id: @function ref,
+ int this_type: @type ref
+);
+
+#keyset[id, type_id]
+fun_decls(
+ int id: @fun_decl,
+ int function: @function ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+fun_def(unique int id: @fun_decl ref);
+fun_specialized(unique int id: @fun_decl ref);
+fun_implicit(unique int id: @fun_decl ref);
+fun_decl_specifiers(
+ int id: @fun_decl ref,
+ string name: string ref
+)
+#keyset[fun_decl, index]
+fun_decl_throws(
+ int fun_decl: @fun_decl ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+/* an empty throw specification is different from none */
+fun_decl_empty_throws(unique int fun_decl: @fun_decl ref);
+fun_decl_noexcept(
+ int fun_decl: @fun_decl ref,
+ int constant: @expr ref
+);
+fun_decl_empty_noexcept(int fun_decl: @fun_decl ref);
+fun_decl_typedef_type(
+ unique int fun_decl: @fun_decl ref,
+ int typedeftype_id: @usertype ref
+);
+
+param_decl_bind(
+ unique int id: @var_decl ref,
+ int index: int ref,
+ int fun_decl: @fun_decl ref
+);
+
+#keyset[id, type_id]
+var_decls(
+ int id: @var_decl,
+ int variable: @variable ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+var_def(unique int id: @var_decl ref);
+var_decl_specifiers(
+ int id: @var_decl ref,
+ string name: string ref
+)
+is_structured_binding(unique int id: @variable ref);
+
+type_decls(
+ unique int id: @type_decl,
+ int type_id: @type ref,
+ int location: @location_default ref
+);
+type_def(unique int id: @type_decl ref);
+type_decl_top(
+ unique int type_decl: @type_decl ref
+);
+
+namespace_decls(
+ unique int id: @namespace_decl,
+ int namespace_id: @namespace ref,
+ int location: @location_default ref,
+ int bodylocation: @location_default ref
+);
+
+case @using.kind of
+ 1 = @using_declaration
+| 2 = @using_directive
+| 3 = @using_enum_declaration
+;
+
+usings(
+ unique int id: @using,
+ int element_id: @element ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+/** The element which contains the `using` declaration. */
+using_container(
+ int parent: @element ref,
+ int child: @using ref
+);
+
+static_asserts(
+ unique int id: @static_assert,
+ int condition : @expr ref,
+ string message : string ref,
+ int location: @location_default ref,
+ int enclosing : @element ref
+);
+
+// each function has an ordered list of parameters
+#keyset[id, type_id]
+#keyset[function, index, type_id]
+params(
+ int id: @parameter,
+ int function: @functionorblock ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+overrides(
+ int new: @function ref,
+ int old: @function ref
+);
+
+#keyset[id, type_id]
+membervariables(
+ int id: @membervariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+globalvariables(
+ int id: @globalvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+localvariables(
+ int id: @localvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+autoderivation(
+ unique int var: @variable ref,
+ int derivation_type: @type ref
+);
+
+orphaned_variables(
+ int var: @localvariable ref,
+ int function: @function ref
+)
+
+enumconstants(
+ unique int id: @enumconstant,
+ int parent: @usertype ref,
+ int index: int ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+
+@variable = @localscopevariable | @globalvariable | @membervariable;
+
+@localscopevariable = @localvariable | @parameter;
+
+/**
+ * Built-in types are the fundamental types, e.g., integral, floating, and void.
+ */
+case @builtintype.kind of
+ 1 = @errortype
+| 2 = @unknowntype
+| 3 = @void
+| 4 = @boolean
+| 5 = @char
+| 6 = @unsigned_char
+| 7 = @signed_char
+| 8 = @short
+| 9 = @unsigned_short
+| 10 = @signed_short
+| 11 = @int
+| 12 = @unsigned_int
+| 13 = @signed_int
+| 14 = @long
+| 15 = @unsigned_long
+| 16 = @signed_long
+| 17 = @long_long
+| 18 = @unsigned_long_long
+| 19 = @signed_long_long
+// ... 20 Microsoft-specific __int8
+// ... 21 Microsoft-specific __int16
+// ... 22 Microsoft-specific __int32
+// ... 23 Microsoft-specific __int64
+| 24 = @float
+| 25 = @double
+| 26 = @long_double
+| 27 = @complex_float // C99-specific _Complex float
+| 28 = @complex_double // C99-specific _Complex double
+| 29 = @complex_long_double // C99-specific _Complex long double
+| 30 = @imaginary_float // C99-specific _Imaginary float
+| 31 = @imaginary_double // C99-specific _Imaginary double
+| 32 = @imaginary_long_double // C99-specific _Imaginary long double
+| 33 = @wchar_t // Microsoft-specific
+| 34 = @decltype_nullptr // C++11
+| 35 = @int128 // __int128
+| 36 = @unsigned_int128 // unsigned __int128
+| 37 = @signed_int128 // signed __int128
+| 38 = @float128 // __float128
+| 39 = @complex_float128 // _Complex __float128
+| 40 = @decimal32 // _Decimal32
+| 41 = @decimal64 // _Decimal64
+| 42 = @decimal128 // _Decimal128
+| 43 = @char16_t
+| 44 = @char32_t
+| 45 = @std_float32 // _Float32
+| 46 = @float32x // _Float32x
+| 47 = @std_float64 // _Float64
+| 48 = @float64x // _Float64x
+| 49 = @std_float128 // _Float128
+// ... 50 _Float128x
+| 51 = @char8_t
+| 52 = @float16 // _Float16
+| 53 = @complex_float16 // _Complex _Float16
+| 54 = @fp16 // __fp16
+| 55 = @std_bfloat16 // __bf16
+| 56 = @std_float16 // std::float16_t
+| 57 = @complex_std_float32 // _Complex _Float32
+| 58 = @complex_float32x // _Complex _Float32x
+| 59 = @complex_std_float64 // _Complex _Float64
+| 60 = @complex_float64x // _Complex _Float64x
+| 61 = @complex_std_float128 // _Complex _Float128
+;
+
+builtintypes(
+ unique int id: @builtintype,
+ string name: string ref,
+ int kind: int ref,
+ int size: int ref,
+ int sign: int ref,
+ int alignment: int ref
+);
+
+/**
+ * Derived types are types that are directly derived from existing types and
+ * point to, refer to, transform type data to return a new type.
+ */
+case @derivedtype.kind of
+ 1 = @pointer
+| 2 = @reference
+| 3 = @type_with_specifiers
+| 4 = @array
+| 5 = @gnu_vector
+| 6 = @routineptr
+| 7 = @routinereference
+| 8 = @rvalue_reference // C++11
+// ... 9 type_conforming_to_protocols deprecated
+| 10 = @block
+;
+
+derivedtypes(
+ unique int id: @derivedtype,
+ string name: string ref,
+ int kind: int ref,
+ int type_id: @type ref
+);
+
+pointerishsize(unique int id: @derivedtype ref,
+ int size: int ref,
+ int alignment: int ref);
+
+arraysizes(
+ unique int id: @derivedtype ref,
+ int num_elements: int ref,
+ int bytesize: int ref,
+ int alignment: int ref
+);
+
+typedefbase(
+ unique int id: @usertype ref,
+ int type_id: @type ref
+);
+
+/**
+ * An instance of the C++11 `decltype` operator. For example:
+ * ```
+ * int a;
+ * decltype(1+a) b;
+ * ```
+ * Here `expr` is `1+a`.
+ *
+ * Sometimes an additional pair of parentheses around the expression
+ * would change the semantics of this decltype, e.g.
+ * ```
+ * struct A { double x; };
+ * const A* a = new A();
+ * decltype( a->x ); // type is double
+ * decltype((a->x)); // type is const double&
+ * ```
+ * (Please consult the C++11 standard for more details).
+ * `parentheses_would_change_meaning` is `true` iff that is the case.
+ */
+#keyset[id, expr]
+decltypes(
+ int id: @decltype,
+ int expr: @expr ref,
+ int base_type: @type ref,
+ boolean parentheses_would_change_meaning: boolean ref
+);
+
+/*
+case @usertype.kind of
+ 1 = @struct
+| 2 = @class
+| 3 = @union
+| 4 = @enum
+| 5 = @typedef // classic C: typedef typedef type name
+| 6 = @template
+| 7 = @template_parameter
+| 8 = @template_template_parameter
+| 9 = @proxy_class // a proxy class associated with a template parameter
+// ... 10 objc_class deprecated
+// ... 11 objc_protocol deprecated
+// ... 12 objc_category deprecated
+| 13 = @scoped_enum
+| 14 = @using_alias // a using name = type style typedef
+;
+*/
+
+usertypes(
+ unique int id: @usertype,
+ string name: string ref,
+ int kind: int ref
+);
+
+usertypesize(
+ unique int id: @usertype ref,
+ int size: int ref,
+ int alignment: int ref
+);
+
+usertype_final(unique int id: @usertype ref);
+
+usertype_uuid(
+ unique int id: @usertype ref,
+ string uuid: string ref
+);
+
+mangled_name(
+ unique int id: @declaration ref,
+ int mangled_name : @mangledname,
+ boolean is_complete: boolean ref
+);
+
+is_pod_class(unique int id: @usertype ref);
+is_standard_layout_class(unique int id: @usertype ref);
+
+is_complete(unique int id: @usertype ref);
+
+is_class_template(unique int id: @usertype ref);
+class_instantiation(
+ int to: @usertype ref,
+ int from: @usertype ref
+);
+class_template_argument(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+class_template_argument_value(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_proxy_class_for(
+ unique int id: @usertype ref,
+ unique int templ_param_id: @usertype ref
+);
+
+type_mentions(
+ unique int id: @type_mention,
+ int type_id: @type ref,
+ int location: @location ref,
+ // a_symbol_reference_kind from the frontend.
+ int kind: int ref
+);
+
+is_function_template(unique int id: @function ref);
+function_instantiation(
+ unique int to: @function ref,
+ int from: @function ref
+);
+function_template_argument(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+function_template_argument_value(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_variable_template(unique int id: @variable ref);
+variable_instantiation(
+ unique int to: @variable ref,
+ int from: @variable ref
+);
+variable_template_argument(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+variable_template_argument_value(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+/*
+ Fixed point types
+ precision(1) = short, precision(2) = default, precision(3) = long
+ is_unsigned(1) = unsigned is_unsigned(2) = signed
+ is_fract_type(1) = declared with _Fract
+ saturating(1) = declared with _Sat
+*/
+/* TODO
+fixedpointtypes(
+ unique int id: @fixedpointtype,
+ int precision: int ref,
+ int is_unsigned: int ref,
+ int is_fract_type: int ref,
+ int saturating: int ref);
+*/
+
+routinetypes(
+ unique int id: @routinetype,
+ int return_type: @type ref
+);
+
+routinetypeargs(
+ int routine: @routinetype ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+ptrtomembers(
+ unique int id: @ptrtomember,
+ int type_id: @type ref,
+ int class_id: @type ref
+);
+
+/*
+ specifiers for types, functions, and variables
+
+ "public",
+ "protected",
+ "private",
+
+ "const",
+ "volatile",
+ "static",
+
+ "pure",
+ "virtual",
+ "sealed", // Microsoft
+ "__interface", // Microsoft
+ "inline",
+ "explicit",
+
+ "near", // near far extension
+ "far", // near far extension
+ "__ptr32", // Microsoft
+ "__ptr64", // Microsoft
+ "__sptr", // Microsoft
+ "__uptr", // Microsoft
+ "dllimport", // Microsoft
+ "dllexport", // Microsoft
+ "thread", // Microsoft
+ "naked", // Microsoft
+ "microsoft_inline", // Microsoft
+ "forceinline", // Microsoft
+ "selectany", // Microsoft
+ "nothrow", // Microsoft
+ "novtable", // Microsoft
+ "noreturn", // Microsoft
+ "noinline", // Microsoft
+ "noalias", // Microsoft
+ "restrict", // Microsoft
+*/
+
+specifiers(
+ unique int id: @specifier,
+ unique string str: string ref
+);
+
+typespecifiers(
+ int type_id: @type ref,
+ int spec_id: @specifier ref
+);
+
+funspecifiers(
+ int func_id: @function ref,
+ int spec_id: @specifier ref
+);
+
+varspecifiers(
+ int var_id: @accessible ref,
+ int spec_id: @specifier ref
+);
+
+explicit_specifier_exprs(
+ unique int func_id: @function ref,
+ int constant: @expr ref
+)
+
+attributes(
+ unique int id: @attribute,
+ int kind: int ref,
+ string name: string ref,
+ string name_space: string ref,
+ int location: @location_default ref
+);
+
+case @attribute.kind of
+ 0 = @gnuattribute
+| 1 = @stdattribute
+| 2 = @declspec
+| 3 = @msattribute
+| 4 = @alignas
+// ... 5 @objc_propertyattribute deprecated
+;
+
+attribute_args(
+ unique int id: @attribute_arg,
+ int kind: int ref,
+ int attribute: @attribute ref,
+ int index: int ref,
+ int location: @location_default ref
+);
+
+case @attribute_arg.kind of
+ 0 = @attribute_arg_empty
+| 1 = @attribute_arg_token
+| 2 = @attribute_arg_constant
+| 3 = @attribute_arg_type
+| 4 = @attribute_arg_constant_expr
+| 5 = @attribute_arg_expr
+;
+
+attribute_arg_value(
+ unique int arg: @attribute_arg ref,
+ string value: string ref
+);
+attribute_arg_type(
+ unique int arg: @attribute_arg ref,
+ int type_id: @type ref
+);
+attribute_arg_constant(
+ unique int arg: @attribute_arg ref,
+ int constant: @expr ref
+)
+attribute_arg_expr(
+ unique int arg: @attribute_arg ref,
+ int expr: @expr ref
+)
+attribute_arg_name(
+ unique int arg: @attribute_arg ref,
+ string name: string ref
+);
+
+typeattributes(
+ int type_id: @type ref,
+ int spec_id: @attribute ref
+);
+
+funcattributes(
+ int func_id: @function ref,
+ int spec_id: @attribute ref
+);
+
+varattributes(
+ int var_id: @accessible ref,
+ int spec_id: @attribute ref
+);
+
+stmtattributes(
+ int stmt_id: @stmt ref,
+ int spec_id: @attribute ref
+);
+
+@type = @builtintype
+ | @derivedtype
+ | @usertype
+ /* TODO | @fixedpointtype */
+ | @routinetype
+ | @ptrtomember
+ | @decltype;
+
+unspecifiedtype(
+ unique int type_id: @type ref,
+ int unspecified_type_id: @type ref
+);
+
+member(
+ int parent: @type ref,
+ int index: int ref,
+ int child: @member ref
+);
+
+@enclosingfunction_child = @usertype | @variable | @namespace
+
+enclosingfunction(
+ unique int child: @enclosingfunction_child ref,
+ int parent: @function ref
+);
+
+derivations(
+ unique int derivation: @derivation,
+ int sub: @type ref,
+ int index: int ref,
+ int super: @type ref,
+ int location: @location_default ref
+);
+
+derspecifiers(
+ int der_id: @derivation ref,
+ int spec_id: @specifier ref
+);
+
+/**
+ * Contains the byte offset of the base class subobject within the derived
+ * class. Only holds for non-virtual base classes, but see table
+ * `virtual_base_offsets` for offsets of virtual base class subobjects.
+ */
+direct_base_offsets(
+ unique int der_id: @derivation ref,
+ int offset: int ref
+);
+
+/**
+ * Contains the byte offset of the virtual base class subobject for class
+ * `super` within a most-derived object of class `sub`. `super` can be either a
+ * direct or indirect base class.
+ */
+#keyset[sub, super]
+virtual_base_offsets(
+ int sub: @usertype ref,
+ int super: @usertype ref,
+ int offset: int ref
+);
+
+frienddecls(
+ unique int id: @frienddecl,
+ int type_id: @type ref,
+ int decl_id: @declaration ref,
+ int location: @location_default ref
+);
+
+@declaredtype = @usertype ;
+
+@declaration = @function
+ | @declaredtype
+ | @variable
+ | @enumconstant
+ | @frienddecl;
+
+@member = @membervariable
+ | @function
+ | @declaredtype
+ | @enumconstant;
+
+@locatable = @diagnostic
+ | @declaration
+ | @ppd_include
+ | @ppd_define
+ | @macroinvocation
+ /*| @funcall*/
+ | @xmllocatable
+ | @attribute
+ | @attribute_arg;
+
+@namedscope = @namespace | @usertype;
+
+@element = @locatable
+ | @file
+ | @folder
+ | @specifier
+ | @type
+ | @expr
+ | @namespace
+ | @initialiser
+ | @stmt
+ | @derivation
+ | @comment
+ | @preprocdirect
+ | @fun_decl
+ | @var_decl
+ | @type_decl
+ | @namespace_decl
+ | @using
+ | @namequalifier
+ | @specialnamequalifyingelement
+ | @static_assert
+ | @type_mention
+ | @lambdacapture;
+
+@exprparent = @element;
+
+comments(
+ unique int id: @comment,
+ string contents: string ref,
+ int location: @location_default ref
+);
+
+commentbinding(
+ int id: @comment ref,
+ int element: @element ref
+);
+
+exprconv(
+ int converted: @expr ref,
+ unique int conversion: @expr ref
+);
+
+compgenerated(unique int id: @element ref);
+
+/**
+ * `destructor_call` destructs the `i`'th entity that should be
+ * destructed following `element`. Note that entities should be
+ * destructed in reverse construction order, so for a given `element`
+ * these should be called from highest to lowest `i`.
+ */
+#keyset[element, destructor_call]
+#keyset[element, i]
+synthetic_destructor_call(
+ int element: @element ref,
+ int i: int ref,
+ int destructor_call: @routineexpr ref
+);
+
+namespaces(
+ unique int id: @namespace,
+ string name: string ref
+);
+
+namespace_inline(
+ unique int id: @namespace ref
+);
+
+namespacembrs(
+ int parentid: @namespace ref,
+ unique int memberid: @namespacembr ref
+);
+
+@namespacembr = @declaration | @namespace;
+
+exprparents(
+ int expr_id: @expr ref,
+ int child_index: int ref,
+ int parent_id: @exprparent ref
+);
+
+expr_isload(unique int expr_id: @expr ref);
+
+@cast = @c_style_cast
+ | @const_cast
+ | @dynamic_cast
+ | @reinterpret_cast
+ | @static_cast
+ ;
+
+/*
+case @conversion.kind of
+ 0 = @simple_conversion // a numeric conversion, qualification conversion, or a reinterpret_cast
+| 1 = @bool_conversion // conversion to 'bool'
+| 2 = @base_class_conversion // a derived-to-base conversion
+| 3 = @derived_class_conversion // a base-to-derived conversion
+| 4 = @pm_base_class_conversion // a derived-to-base conversion of a pointer to member
+| 5 = @pm_derived_class_conversion // a base-to-derived conversion of a pointer to member
+| 6 = @glvalue_adjust // an adjustment of the type of a glvalue
+| 7 = @prvalue_adjust // an adjustment of the type of a prvalue
+;
+*/
+/**
+ * Describes the semantics represented by a cast expression. This is largely
+ * independent of the source syntax of the cast, so it is separate from the
+ * regular expression kind.
+ */
+conversionkinds(
+ unique int expr_id: @cast ref,
+ int kind: int ref
+);
+
+@conversion = @cast
+ | @array_to_pointer
+ | @parexpr
+ | @reference_to
+ | @ref_indirect
+ | @temp_init
+ | @c11_generic
+ ;
+
+/*
+case @funbindexpr.kind of
+ 0 = @normal_call // a normal call
+| 1 = @virtual_call // a virtual call
+| 2 = @adl_call // a call whose target is only found by ADL
+;
+*/
+iscall(
+ unique int caller: @funbindexpr ref,
+ int kind: int ref
+);
+
+numtemplatearguments(
+ unique int expr_id: @expr ref,
+ int num: int ref
+);
+
+specialnamequalifyingelements(
+ unique int id: @specialnamequalifyingelement,
+ unique string name: string ref
+);
+
+@namequalifiableelement = @expr | @namequalifier;
+@namequalifyingelement = @namespace
+ | @specialnamequalifyingelement
+ | @usertype;
+
+namequalifiers(
+ unique int id: @namequalifier,
+ unique int qualifiableelement: @namequalifiableelement ref,
+ int qualifyingelement: @namequalifyingelement ref,
+ int location: @location_default ref
+);
+
+varbind(
+ int expr: @varbindexpr ref,
+ int var: @accessible ref
+);
+
+funbind(
+ int expr: @funbindexpr ref,
+ int fun: @function ref
+);
+
+@any_new_expr = @new_expr
+ | @new_array_expr;
+
+@new_or_delete_expr = @any_new_expr
+ | @delete_expr
+ | @delete_array_expr;
+
+@prefix_crement_expr = @preincrexpr | @predecrexpr;
+
+@postfix_crement_expr = @postincrexpr | @postdecrexpr;
+
+@increment_expr = @preincrexpr | @postincrexpr;
+
+@decrement_expr = @predecrexpr | @postdecrexpr;
+
+@crement_expr = @increment_expr | @decrement_expr;
+
+@un_arith_op_expr = @arithnegexpr
+ | @unaryplusexpr
+ | @conjugation
+ | @realpartexpr
+ | @imagpartexpr
+ | @crement_expr
+ ;
+
+@un_bitwise_op_expr = @complementexpr;
+
+@un_log_op_expr = @notexpr;
+
+@un_op_expr = @address_of
+ | @indirect
+ | @un_arith_op_expr
+ | @un_bitwise_op_expr
+ | @builtinaddressof
+ | @vec_fill
+ | @un_log_op_expr
+ | @co_await
+ | @co_yield
+ ;
+
+@bin_log_op_expr = @andlogicalexpr | @orlogicalexpr;
+
+@cmp_op_expr = @eq_op_expr | @rel_op_expr;
+
+@eq_op_expr = @eqexpr | @neexpr;
+
+@rel_op_expr = @gtexpr
+ | @ltexpr
+ | @geexpr
+ | @leexpr
+ | @spaceshipexpr
+ ;
+
+@bin_bitwise_op_expr = @lshiftexpr
+ | @rshiftexpr
+ | @andexpr
+ | @orexpr
+ | @xorexpr
+ ;
+
+@p_arith_op_expr = @paddexpr
+ | @psubexpr
+ | @pdiffexpr
+ ;
+
+@bin_arith_op_expr = @addexpr
+ | @subexpr
+ | @mulexpr
+ | @divexpr
+ | @remexpr
+ | @jmulexpr
+ | @jdivexpr
+ | @fjaddexpr
+ | @jfaddexpr
+ | @fjsubexpr
+ | @jfsubexpr
+ | @minexpr
+ | @maxexpr
+ | @p_arith_op_expr
+ ;
+
+@bin_op_expr = @bin_arith_op_expr
+ | @bin_bitwise_op_expr
+ | @cmp_op_expr
+ | @bin_log_op_expr
+ ;
+
+@op_expr = @un_op_expr
+ | @bin_op_expr
+ | @assign_expr
+ | @conditionalexpr
+ ;
+
+@assign_arith_expr = @assignaddexpr
+ | @assignsubexpr
+ | @assignmulexpr
+ | @assigndivexpr
+ | @assignremexpr
+ ;
+
+@assign_bitwise_expr = @assignandexpr
+ | @assignorexpr
+ | @assignxorexpr
+ | @assignlshiftexpr
+ | @assignrshiftexpr
+ ;
+
+@assign_pointer_expr = @assignpaddexpr
+ | @assignpsubexpr
+ ;
+
+@assign_op_expr = @assign_arith_expr
+ | @assign_bitwise_expr
+ | @assign_pointer_expr
+ ;
+
+@assign_expr = @assignexpr | @assign_op_expr | @blockassignexpr
+
+/*
+ Binary encoding of the allocator form.
+
+ case @allocator.form of
+ 0 = plain
+ | 1 = alignment
+ ;
+*/
+
+/**
+ * The allocator function associated with a `new` or `new[]` expression.
+ * The `form` column specified whether the allocation call contains an alignment
+ * argument.
+ */
+expr_allocator(
+ unique int expr: @any_new_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/*
+ Binary encoding of the deallocator form.
+
+ case @deallocator.form of
+ 0 = plain
+ | 1 = size
+ | 2 = alignment
+ | 4 = destroying_delete
+ ;
+*/
+
+/**
+ * The deallocator function associated with a `delete`, `delete[]`, `new`, or
+ * `new[]` expression. For a `new` or `new[]` expression, the deallocator is the
+ * one used to free memory if the initialization throws an exception.
+ * The `form` column specifies whether the deallocation call contains a size
+ * argument, and alignment argument, or both.
+ */
+expr_deallocator(
+ unique int expr: @new_or_delete_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/**
+ * Holds if the `@conditionalexpr` is of the two operand form
+ * `guard ? : false`.
+ */
+expr_cond_two_operand(
+ unique int cond: @conditionalexpr ref
+);
+
+/**
+ * The guard of `@conditionalexpr` `guard ? true : false`
+ */
+expr_cond_guard(
+ unique int cond: @conditionalexpr ref,
+ int guard: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` holds. For the two operand form
+ * `guard ?: false` consider using `expr_cond_guard` instead.
+ */
+expr_cond_true(
+ unique int cond: @conditionalexpr ref,
+ int true: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` does not hold.
+ */
+expr_cond_false(
+ unique int cond: @conditionalexpr ref,
+ int false: @expr ref
+);
+
+/** A string representation of the value. */
+values(
+ unique int id: @value,
+ string str: string ref
+);
+
+/** The actual text in the source code for the value, if any. */
+valuetext(
+ unique int id: @value ref,
+ string text: string ref
+);
+
+valuebind(
+ int val: @value ref,
+ unique int expr: @expr ref
+);
+
+fieldoffsets(
+ unique int id: @variable ref,
+ int byteoffset: int ref,
+ int bitoffset: int ref
+);
+
+bitfield(
+ unique int id: @variable ref,
+ int bits: int ref,
+ int declared_bits: int ref
+);
+
+/* TODO
+memberprefix(
+ int member: @expr ref,
+ int prefix: @expr ref
+);
+*/
+
+/*
+ kind(1) = mbrcallexpr
+ kind(2) = mbrptrcallexpr
+ kind(3) = mbrptrmbrcallexpr
+ kind(4) = ptrmbrptrmbrcallexpr
+ kind(5) = mbrreadexpr // x.y
+ kind(6) = mbrptrreadexpr // p->y
+ kind(7) = mbrptrmbrreadexpr // x.*pm
+ kind(8) = mbrptrmbrptrreadexpr // x->*pm
+ kind(9) = staticmbrreadexpr // static x.y
+ kind(10) = staticmbrptrreadexpr // static p->y
+*/
+/* TODO
+memberaccess(
+ int member: @expr ref,
+ int kind: int ref
+);
+*/
+
+initialisers(
+ unique int init: @initialiser,
+ int var: @accessible ref,
+ unique int expr: @expr ref,
+ int location: @location_expr ref
+);
+
+braced_initialisers(
+ int init: @initialiser ref
+);
+
+/**
+ * An ancestor for the expression, for cases in which we cannot
+ * otherwise find the expression's parent.
+ */
+expr_ancestor(
+ int exp: @expr ref,
+ int ancestor: @element ref
+);
+
+exprs(
+ unique int id: @expr,
+ int kind: int ref,
+ int location: @location_expr ref
+);
+
+expr_reuse(
+ int reuse: @expr ref,
+ int original: @expr ref,
+ int value_category: int ref
+)
+
+/*
+ case @value.category of
+ 1 = prval
+ | 2 = xval
+ | 3 = lval
+ ;
+*/
+expr_types(
+ int id: @expr ref,
+ int typeid: @type ref,
+ int value_category: int ref
+);
+
+case @expr.kind of
+ 1 = @errorexpr
+| 2 = @address_of // & AddressOfExpr
+| 3 = @reference_to // ReferenceToExpr (implicit?)
+| 4 = @indirect // * PointerDereferenceExpr
+| 5 = @ref_indirect // ReferenceDereferenceExpr (implicit?)
+// ...
+| 8 = @array_to_pointer // (???)
+| 9 = @vacuous_destructor_call // VacuousDestructorCall
+// ...
+| 11 = @assume // Microsoft
+| 12 = @parexpr
+| 13 = @arithnegexpr
+| 14 = @unaryplusexpr
+| 15 = @complementexpr
+| 16 = @notexpr
+| 17 = @conjugation // GNU ~ operator
+| 18 = @realpartexpr // GNU __real
+| 19 = @imagpartexpr // GNU __imag
+| 20 = @postincrexpr
+| 21 = @postdecrexpr
+| 22 = @preincrexpr
+| 23 = @predecrexpr
+| 24 = @conditionalexpr
+| 25 = @addexpr
+| 26 = @subexpr
+| 27 = @mulexpr
+| 28 = @divexpr
+| 29 = @remexpr
+| 30 = @jmulexpr // C99 mul imaginary
+| 31 = @jdivexpr // C99 div imaginary
+| 32 = @fjaddexpr // C99 add real + imaginary
+| 33 = @jfaddexpr // C99 add imaginary + real
+| 34 = @fjsubexpr // C99 sub real - imaginary
+| 35 = @jfsubexpr // C99 sub imaginary - real
+| 36 = @paddexpr // pointer add (pointer + int or int + pointer)
+| 37 = @psubexpr // pointer sub (pointer - integer)
+| 38 = @pdiffexpr // difference between two pointers
+| 39 = @lshiftexpr
+| 40 = @rshiftexpr
+| 41 = @andexpr
+| 42 = @orexpr
+| 43 = @xorexpr
+| 44 = @eqexpr
+| 45 = @neexpr
+| 46 = @gtexpr
+| 47 = @ltexpr
+| 48 = @geexpr
+| 49 = @leexpr
+| 50 = @minexpr // GNU minimum
+| 51 = @maxexpr // GNU maximum
+| 52 = @assignexpr
+| 53 = @assignaddexpr
+| 54 = @assignsubexpr
+| 55 = @assignmulexpr
+| 56 = @assigndivexpr
+| 57 = @assignremexpr
+| 58 = @assignlshiftexpr
+| 59 = @assignrshiftexpr
+| 60 = @assignandexpr
+| 61 = @assignorexpr
+| 62 = @assignxorexpr
+| 63 = @assignpaddexpr // assign pointer add
+| 64 = @assignpsubexpr // assign pointer sub
+| 65 = @andlogicalexpr
+| 66 = @orlogicalexpr
+| 67 = @commaexpr
+| 68 = @subscriptexpr // access to member of an array, e.g., a[5]
+// ... 69 @objc_subscriptexpr deprecated
+// ... 70 @cmdaccess deprecated
+// ...
+| 73 = @virtfunptrexpr
+| 74 = @callexpr
+// ... 75 @msgexpr_normal deprecated
+// ... 76 @msgexpr_super deprecated
+// ... 77 @atselectorexpr deprecated
+// ... 78 @atprotocolexpr deprecated
+| 79 = @vastartexpr
+| 80 = @vaargexpr
+| 81 = @vaendexpr
+| 82 = @vacopyexpr
+// ... 83 @atencodeexpr deprecated
+| 84 = @varaccess
+| 85 = @thisaccess
+// ... 86 @objc_box_expr deprecated
+| 87 = @new_expr
+| 88 = @delete_expr
+| 89 = @throw_expr
+| 90 = @condition_decl // a variable declared in a condition, e.g., if(int x = y > 2)
+| 91 = @braced_init_list
+| 92 = @type_id
+| 93 = @runtime_sizeof
+| 94 = @runtime_alignof
+| 95 = @sizeof_pack
+| 96 = @expr_stmt // GNU extension
+| 97 = @routineexpr
+| 98 = @type_operand // used to access a type in certain contexts (haven't found any examples yet....)
+| 99 = @offsetofexpr // offsetof ::= type and field
+| 100 = @hasassignexpr // __has_assign ::= type
+| 101 = @hascopyexpr // __has_copy ::= type
+| 102 = @hasnothrowassign // __has_nothrow_assign ::= type
+| 103 = @hasnothrowconstr // __has_nothrow_constructor ::= type
+| 104 = @hasnothrowcopy // __has_nothrow_copy ::= type
+| 105 = @hastrivialassign // __has_trivial_assign ::= type
+| 106 = @hastrivialconstr // __has_trivial_constructor ::= type
+| 107 = @hastrivialcopy // __has_trivial_copy ::= type
+| 108 = @hasuserdestr // __has_user_destructor ::= type
+| 109 = @hasvirtualdestr // __has_virtual_destructor ::= type
+| 110 = @isabstractexpr // __is_abstract ::= type
+| 111 = @isbaseofexpr // __is_base_of ::= type type
+| 112 = @isclassexpr // __is_class ::= type
+| 113 = @isconvtoexpr // __is_convertible_to ::= type type
+| 114 = @isemptyexpr // __is_empty ::= type
+| 115 = @isenumexpr // __is_enum ::= type
+| 116 = @ispodexpr // __is_pod ::= type
+| 117 = @ispolyexpr // __is_polymorphic ::= type
+| 118 = @isunionexpr // __is_union ::= type
+| 119 = @typescompexpr // GNU __builtin_types_compatible ::= type type
+| 120 = @intaddrexpr // frontend internal builtin, used to implement offsetof
+// ...
+| 122 = @hastrivialdestructor // __has_trivial_destructor ::= type
+| 123 = @literal
+| 124 = @uuidof
+| 127 = @aggregateliteral
+| 128 = @delete_array_expr
+| 129 = @new_array_expr
+// ... 130 @objc_array_literal deprecated
+// ... 131 @objc_dictionary_literal deprecated
+| 132 = @foldexpr
+// ...
+| 200 = @ctordirectinit
+| 201 = @ctorvirtualinit
+| 202 = @ctorfieldinit
+| 203 = @ctordelegatinginit
+| 204 = @dtordirectdestruct
+| 205 = @dtorvirtualdestruct
+| 206 = @dtorfielddestruct
+// ...
+| 210 = @static_cast
+| 211 = @reinterpret_cast
+| 212 = @const_cast
+| 213 = @dynamic_cast
+| 214 = @c_style_cast
+| 215 = @lambdaexpr
+| 216 = @param_ref
+| 217 = @noopexpr
+// ...
+| 294 = @istriviallyconstructibleexpr
+| 295 = @isdestructibleexpr
+| 296 = @isnothrowdestructibleexpr
+| 297 = @istriviallydestructibleexpr
+| 298 = @istriviallyassignableexpr
+| 299 = @isnothrowassignableexpr
+| 300 = @istrivialexpr
+| 301 = @isstandardlayoutexpr
+| 302 = @istriviallycopyableexpr
+| 303 = @isliteraltypeexpr
+| 304 = @hastrivialmoveconstructorexpr
+| 305 = @hastrivialmoveassignexpr
+| 306 = @hasnothrowmoveassignexpr
+| 307 = @isconstructibleexpr
+| 308 = @isnothrowconstructibleexpr
+| 309 = @hasfinalizerexpr
+| 310 = @isdelegateexpr
+| 311 = @isinterfaceclassexpr
+| 312 = @isrefarrayexpr
+| 313 = @isrefclassexpr
+| 314 = @issealedexpr
+| 315 = @issimplevalueclassexpr
+| 316 = @isvalueclassexpr
+| 317 = @isfinalexpr
+| 319 = @noexceptexpr
+| 320 = @builtinshufflevector
+| 321 = @builtinchooseexpr
+| 322 = @builtinaddressof
+| 323 = @vec_fill
+| 324 = @builtinconvertvector
+| 325 = @builtincomplex
+| 326 = @spaceshipexpr
+| 327 = @co_await
+| 328 = @co_yield
+| 329 = @temp_init
+| 330 = @isassignable
+| 331 = @isaggregate
+| 332 = @hasuniqueobjectrepresentations
+| 333 = @builtinbitcast
+| 334 = @builtinshuffle
+| 335 = @blockassignexpr
+| 336 = @issame
+| 337 = @isfunction
+| 338 = @islayoutcompatible
+| 339 = @ispointerinterconvertiblebaseof
+| 340 = @isarray
+| 341 = @arrayrank
+| 342 = @arrayextent
+| 343 = @isarithmetic
+| 344 = @iscompletetype
+| 345 = @iscompound
+| 346 = @isconst
+| 347 = @isfloatingpoint
+| 348 = @isfundamental
+| 349 = @isintegral
+| 350 = @islvaluereference
+| 351 = @ismemberfunctionpointer
+| 352 = @ismemberobjectpointer
+| 353 = @ismemberpointer
+| 354 = @isobject
+| 355 = @ispointer
+| 356 = @isreference
+| 357 = @isrvaluereference
+| 358 = @isscalar
+| 359 = @issigned
+| 360 = @isunsigned
+| 361 = @isvoid
+| 362 = @isvolatile
+| 363 = @reuseexpr
+| 364 = @istriviallycopyassignable
+| 365 = @isassignablenopreconditioncheck
+| 366 = @referencebindstotemporary
+| 367 = @issameas
+| 368 = @builtinhasattribute
+| 369 = @ispointerinterconvertiblewithclass
+| 370 = @builtinispointerinterconvertiblewithclass
+| 371 = @iscorrespondingmember
+| 372 = @builtiniscorrespondingmember
+| 373 = @isboundedarray
+| 374 = @isunboundedarray
+| 375 = @isreferenceable
+| 378 = @isnothrowconvertible
+| 379 = @referenceconstructsfromtemporary
+| 380 = @referenceconvertsfromtemporary
+| 381 = @isconvertible
+| 382 = @isvalidwinrttype
+| 383 = @iswinclass
+| 384 = @iswininterface
+| 385 = @istriviallyequalitycomparable
+| 386 = @isscopedenum
+| 387 = @istriviallyrelocatable
+| 388 = @datasizeof
+| 389 = @c11_generic
+;
+
+@var_args_expr = @vastartexpr
+ | @vaendexpr
+ | @vaargexpr
+ | @vacopyexpr
+ ;
+
+@builtin_op = @var_args_expr
+ | @noopexpr
+ | @offsetofexpr
+ | @intaddrexpr
+ | @hasassignexpr
+ | @hascopyexpr
+ | @hasnothrowassign
+ | @hasnothrowconstr
+ | @hasnothrowcopy
+ | @hastrivialassign
+ | @hastrivialconstr
+ | @hastrivialcopy
+ | @hastrivialdestructor
+ | @hasuserdestr
+ | @hasvirtualdestr
+ | @isabstractexpr
+ | @isbaseofexpr
+ | @isclassexpr
+ | @isconvtoexpr
+ | @isemptyexpr
+ | @isenumexpr
+ | @ispodexpr
+ | @ispolyexpr
+ | @isunionexpr
+ | @typescompexpr
+ | @builtinshufflevector
+ | @builtinconvertvector
+ | @builtinaddressof
+ | @istriviallyconstructibleexpr
+ | @isdestructibleexpr
+ | @isnothrowdestructibleexpr
+ | @istriviallydestructibleexpr
+ | @istriviallyassignableexpr
+ | @isnothrowassignableexpr
+ | @istrivialexpr
+ | @isstandardlayoutexpr
+ | @istriviallycopyableexpr
+ | @isliteraltypeexpr
+ | @hastrivialmoveconstructorexpr
+ | @hastrivialmoveassignexpr
+ | @hasnothrowmoveassignexpr
+ | @isconstructibleexpr
+ | @isnothrowconstructibleexpr
+ | @hasfinalizerexpr
+ | @isdelegateexpr
+ | @isinterfaceclassexpr
+ | @isrefarrayexpr
+ | @isrefclassexpr
+ | @issealedexpr
+ | @issimplevalueclassexpr
+ | @isvalueclassexpr
+ | @isfinalexpr
+ | @builtinchooseexpr
+ | @builtincomplex
+ | @isassignable
+ | @isaggregate
+ | @hasuniqueobjectrepresentations
+ | @builtinbitcast
+ | @builtinshuffle
+ | @issame
+ | @isfunction
+ | @islayoutcompatible
+ | @ispointerinterconvertiblebaseof
+ | @isarray
+ | @arrayrank
+ | @arrayextent
+ | @isarithmetic
+ | @iscompletetype
+ | @iscompound
+ | @isconst
+ | @isfloatingpoint
+ | @isfundamental
+ | @isintegral
+ | @islvaluereference
+ | @ismemberfunctionpointer
+ | @ismemberobjectpointer
+ | @ismemberpointer
+ | @isobject
+ | @ispointer
+ | @isreference
+ | @isrvaluereference
+ | @isscalar
+ | @issigned
+ | @isunsigned
+ | @isvoid
+ | @isvolatile
+ | @istriviallycopyassignable
+ | @isassignablenopreconditioncheck
+ | @referencebindstotemporary
+ | @issameas
+ | @builtinhasattribute
+ | @ispointerinterconvertiblewithclass
+ | @builtinispointerinterconvertiblewithclass
+ | @iscorrespondingmember
+ | @builtiniscorrespondingmember
+ | @isboundedarray
+ | @isunboundedarray
+ | @isreferenceable
+ | @isnothrowconvertible
+ | @referenceconstructsfromtemporary
+ | @referenceconvertsfromtemporary
+ | @isconvertible
+ | @isvalidwinrttype
+ | @iswinclass
+ | @iswininterface
+ | @istriviallyequalitycomparable
+ | @isscopedenum
+ | @istriviallyrelocatable
+ ;
+
+new_allocated_type(
+ unique int expr: @new_expr ref,
+ int type_id: @type ref
+);
+
+new_array_allocated_type(
+ unique int expr: @new_array_expr ref,
+ int type_id: @type ref
+);
+
+/**
+ * The field being initialized by an initializer expression within an aggregate
+ * initializer for a class/struct/union. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_field_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int field: @membervariable ref,
+ int position: int ref
+);
+
+/**
+ * The index of the element being initialized by an initializer expression
+ * within an aggregate initializer for an array. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_array_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int element_index: int ref,
+ int position: int ref
+);
+
+@ctorinit = @ctordirectinit
+ | @ctorvirtualinit
+ | @ctorfieldinit
+ | @ctordelegatinginit;
+@dtordestruct = @dtordirectdestruct
+ | @dtorvirtualdestruct
+ | @dtorfielddestruct;
+
+
+condition_decl_bind(
+ unique int expr: @condition_decl ref,
+ unique int decl: @declaration ref
+);
+
+typeid_bind(
+ unique int expr: @type_id ref,
+ int type_id: @type ref
+);
+
+uuidof_bind(
+ unique int expr: @uuidof ref,
+ int type_id: @type ref
+);
+
+@runtime_sizeof_or_alignof = @runtime_sizeof | @runtime_alignof | @datasizeof;
+
+sizeof_bind(
+ unique int expr: @runtime_sizeof_or_alignof ref,
+ int type_id: @type ref
+);
+
+code_block(
+ unique int block: @literal ref,
+ unique int routine: @function ref
+);
+
+lambdas(
+ unique int expr: @lambdaexpr ref,
+ string default_capture: string ref,
+ boolean has_explicit_return_type: boolean ref
+);
+
+lambda_capture(
+ unique int id: @lambdacapture,
+ int lambda: @lambdaexpr ref,
+ int index: int ref,
+ int field: @membervariable ref,
+ boolean captured_by_reference: boolean ref,
+ boolean is_implicit: boolean ref,
+ int location: @location_default ref
+);
+
+@funbindexpr = @routineexpr
+ | @new_expr
+ | @delete_expr
+ | @delete_array_expr
+ | @ctordirectinit
+ | @ctorvirtualinit
+ | @ctordelegatinginit
+ | @dtordirectdestruct
+ | @dtorvirtualdestruct;
+
+@varbindexpr = @varaccess | @ctorfieldinit | @dtorfielddestruct;
+@addressable = @function | @variable ;
+@accessible = @addressable | @enumconstant ;
+
+@access = @varaccess | @routineexpr ;
+
+fold(
+ int expr: @foldexpr ref,
+ string operator: string ref,
+ boolean is_left_fold: boolean ref
+);
+
+stmts(
+ unique int id: @stmt,
+ int kind: int ref,
+ int location: @location_stmt ref
+);
+
+case @stmt.kind of
+ 1 = @stmt_expr
+| 2 = @stmt_if
+| 3 = @stmt_while
+| 4 = @stmt_goto
+| 5 = @stmt_label
+| 6 = @stmt_return
+| 7 = @stmt_block
+| 8 = @stmt_end_test_while // do { ... } while ( ... )
+| 9 = @stmt_for
+| 10 = @stmt_switch_case
+| 11 = @stmt_switch
+| 13 = @stmt_asm // "asm" statement or the body of an asm function
+| 15 = @stmt_try_block
+| 16 = @stmt_microsoft_try // Microsoft
+| 17 = @stmt_decl
+| 18 = @stmt_set_vla_size // C99
+| 19 = @stmt_vla_decl // C99
+| 25 = @stmt_assigned_goto // GNU
+| 26 = @stmt_empty
+| 27 = @stmt_continue
+| 28 = @stmt_break
+| 29 = @stmt_range_based_for // C++11
+// ... 30 @stmt_at_autoreleasepool_block deprecated
+// ... 31 @stmt_objc_for_in deprecated
+// ... 32 @stmt_at_synchronized deprecated
+| 33 = @stmt_handler
+// ... 34 @stmt_finally_end deprecated
+| 35 = @stmt_constexpr_if
+| 37 = @stmt_co_return
+;
+
+type_vla(
+ int type_id: @type ref,
+ int decl: @stmt_vla_decl ref
+);
+
+variable_vla(
+ int var: @variable ref,
+ int decl: @stmt_vla_decl ref
+);
+
+if_initialization(
+ unique int if_stmt: @stmt_if ref,
+ int init_id: @stmt ref
+);
+
+if_then(
+ unique int if_stmt: @stmt_if ref,
+ int then_id: @stmt ref
+);
+
+if_else(
+ unique int if_stmt: @stmt_if ref,
+ int else_id: @stmt ref
+);
+
+constexpr_if_initialization(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int init_id: @stmt ref
+);
+
+constexpr_if_then(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int then_id: @stmt ref
+);
+
+constexpr_if_else(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int else_id: @stmt ref
+);
+
+while_body(
+ unique int while_stmt: @stmt_while ref,
+ int body_id: @stmt ref
+);
+
+do_body(
+ unique int do_stmt: @stmt_end_test_while ref,
+ int body_id: @stmt ref
+);
+
+switch_initialization(
+ unique int switch_stmt: @stmt_switch ref,
+ int init_id: @stmt ref
+);
+
+#keyset[switch_stmt, index]
+switch_case(
+ int switch_stmt: @stmt_switch ref,
+ int index: int ref,
+ int case_id: @stmt_switch_case ref
+);
+
+switch_body(
+ unique int switch_stmt: @stmt_switch ref,
+ int body_id: @stmt ref
+);
+
+@stmt_for_or_range_based_for = @stmt_for
+ | @stmt_range_based_for;
+
+for_initialization(
+ unique int for_stmt: @stmt_for_or_range_based_for ref,
+ int init_id: @stmt ref
+);
+
+for_condition(
+ unique int for_stmt: @stmt_for ref,
+ int condition_id: @expr ref
+);
+
+for_update(
+ unique int for_stmt: @stmt_for ref,
+ int update_id: @expr ref
+);
+
+for_body(
+ unique int for_stmt: @stmt_for ref,
+ int body_id: @stmt ref
+);
+
+@stmtparent = @stmt | @expr_stmt ;
+stmtparents(
+ unique int id: @stmt ref,
+ int index: int ref,
+ int parent: @stmtparent ref
+);
+
+ishandler(unique int block: @stmt_block ref);
+
+@cfgnode = @stmt | @expr | @function | @initialiser ;
+
+stmt_decl_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl: @declaration ref
+);
+
+stmt_decl_entry_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl_entry: @element ref
+);
+
+@functionorblock = @function | @stmt_block;
+
+blockscope(
+ unique int block: @stmt_block ref,
+ int enclosing: @functionorblock ref
+);
+
+@jump = @stmt_goto | @stmt_break | @stmt_continue;
+
+@jumporlabel = @jump | @stmt_label | @literal;
+
+jumpinfo(
+ unique int id: @jumporlabel ref,
+ string str: string ref,
+ int target: @stmt ref
+);
+
+preprocdirects(
+ unique int id: @preprocdirect,
+ int kind: int ref,
+ int location: @location_default ref
+);
+case @preprocdirect.kind of
+ 0 = @ppd_if
+| 1 = @ppd_ifdef
+| 2 = @ppd_ifndef
+| 3 = @ppd_elif
+| 4 = @ppd_else
+| 5 = @ppd_endif
+| 6 = @ppd_plain_include
+| 7 = @ppd_define
+| 8 = @ppd_undef
+| 9 = @ppd_line
+| 10 = @ppd_error
+| 11 = @ppd_pragma
+| 12 = @ppd_objc_import
+| 13 = @ppd_include_next
+| 18 = @ppd_warning
+;
+
+@ppd_include = @ppd_plain_include | @ppd_objc_import | @ppd_include_next;
+
+@ppd_branch = @ppd_if | @ppd_ifdef | @ppd_ifndef | @ppd_elif;
+
+preprocpair(
+ int begin : @ppd_branch ref,
+ int elseelifend : @preprocdirect ref
+);
+
+preproctrue(int branch : @ppd_branch ref);
+preprocfalse(int branch : @ppd_branch ref);
+
+preproctext(
+ unique int id: @preprocdirect ref,
+ string head: string ref,
+ string body: string ref
+);
+
+includes(
+ unique int id: @ppd_include ref,
+ int included: @file ref
+);
+
+link_targets(
+ int id: @link_target,
+ int binary: @file ref
+);
+
+link_parent(
+ int element : @element ref,
+ int link_target : @link_target ref
+);
+
+/* XML Files */
+
+xmlEncoding(unique int id: @file ref, string encoding: string ref);
+
+xmlDTDs(
+ unique int id: @xmldtd,
+ string root: string ref,
+ string publicId: string ref,
+ string systemId: string ref,
+ int fileid: @file ref
+);
+
+xmlElements(
+ unique int id: @xmlelement,
+ string name: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlAttrs(
+ unique int id: @xmlattribute,
+ int elementid: @xmlelement ref,
+ string name: string ref,
+ string value: string ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlNs(
+ int id: @xmlnamespace,
+ string prefixName: string ref,
+ string URI: string ref,
+ int fileid: @file ref
+);
+
+xmlHasNs(
+ int elementId: @xmlnamespaceable ref,
+ int nsId: @xmlnamespace ref,
+ int fileid: @file ref
+);
+
+xmlComments(
+ unique int id: @xmlcomment,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int fileid: @file ref
+);
+
+xmlChars(
+ unique int id: @xmlcharacters,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int isCDATA: int ref,
+ int fileid: @file ref
+);
+
+@xmlparent = @file | @xmlelement;
+@xmlnamespaceable = @xmlelement | @xmlattribute;
+
+xmllocations(
+ int xmlElement: @xmllocatable ref,
+ int location: @location_default ref
+);
+
+@xmllocatable = @xmlcharacters
+ | @xmlelement
+ | @xmlcomment
+ | @xmlattribute
+ | @xmldtd
+ | @file
+ | @xmlnamespace;
diff --git a/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/upgrade.properties b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/upgrade.properties
new file mode 100644
index 000000000000..cb2077596c33
--- /dev/null
+++ b/cpp/downgrades/7ff6a6e53dbcff09d1b9b758b594bc6d17366863/upgrade.properties
@@ -0,0 +1,4 @@
+description: Improve handling of coroutine placeholder variables
+compatibility: full
+coroutine.rel: run coroutine.qlo
+coroutine_placeholder_variable.rel: delete
diff --git a/cpp/ql/lib/semmle/code/cpp/Variable.qll b/cpp/ql/lib/semmle/code/cpp/Variable.qll
index 8d78dbd2c717..96bfabb4de07 100644
--- a/cpp/ql/lib/semmle/code/cpp/Variable.qll
+++ b/cpp/ql/lib/semmle/code/cpp/Variable.qll
@@ -409,11 +409,18 @@ class LocalVariable extends LocalScopeVariable, @localvariable {
exists(ConditionDeclExpr e | e.getVariable() = this and e.getEnclosingFunction() = result)
or
orphaned_variables(underlyingElement(this), unresolveElement(result))
+ or
+ coroutine_placeholder_variable(underlyingElement(this), _, unresolveElement(result))
}
override predicate isStatic() {
super.isStatic() or orphaned_variables(underlyingElement(this), _)
}
+
+ override predicate isCompilerGenerated() {
+ super.isCompilerGenerated() or
+ coroutine_placeholder_variable(underlyingElement(this), _, _)
+ }
}
/**
diff --git a/cpp/ql/lib/semmlecode.cpp.dbscheme b/cpp/ql/lib/semmlecode.cpp.dbscheme
index 0fea0ee7026c..7ff6a6e53dbc 100644
--- a/cpp/ql/lib/semmlecode.cpp.dbscheme
+++ b/cpp/ql/lib/semmlecode.cpp.dbscheme
@@ -384,11 +384,23 @@ function_return_type(
*/
coroutine(
unique int function: @function ref,
- int traits: @type ref,
- int handle: @variable ref,
- int promise: @variable ref
+ int traits: @type ref
);
+/*
+case @coroutine_placeholder_variable.kind of
+ 1 = @handle
+| 2 = @promise
+| 3 = @init_await_resume
+;
+*/
+
+coroutine_placeholder_variable(
+ unique int placeholder_variable: @variable ref,
+ int kind: int ref,
+ int function: @function ref
+)
+
/** The `new` function used for allocating the coroutine state, if any. */
coroutine_new(
unique int function: @function ref,
@@ -829,22 +841,6 @@ variable_template_argument_value(
int arg_value: @expr ref
);
-/*
- Fixed point types
- precision(1) = short, precision(2) = default, precision(3) = long
- is_unsigned(1) = unsigned is_unsigned(2) = signed
- is_fract_type(1) = declared with _Fract
- saturating(1) = declared with _Sat
-*/
-/* TODO
-fixedpointtypes(
- unique int id: @fixedpointtype,
- int precision: int ref,
- int is_unsigned: int ref,
- int is_fract_type: int ref,
- int saturating: int ref);
-*/
-
routinetypes(
unique int id: @routinetype,
int return_type: @type ref
diff --git a/cpp/ql/lib/semmlecode.cpp.dbscheme.stats b/cpp/ql/lib/semmlecode.cpp.dbscheme.stats
index 73e6d0bf9728..07045b0bd67a 100644
--- a/cpp/ql/lib/semmlecode.cpp.dbscheme.stats
+++ b/cpp/ql/lib/semmlecode.cpp.dbscheme.stats
@@ -98,7 +98,7 @@
@localvariable
- 576947
+ 576946
@enumconstant
@@ -370,7 +370,7 @@
@usertype
- 5234031
+ 5234965
@mangledname
@@ -468,10 +468,6 @@
@initialiser
1710781
-
- @lambdacapture
- 28011
-
@address_of
438815
@@ -482,11 +478,11 @@
@array_to_pointer
- 1430839
+ 1430838
@parexpr
- 3587480
+ 3587479
@arithnegexpr
@@ -522,7 +518,7 @@
@conditionalexpr
- 657238
+ 657237
@addexpr
@@ -1360,6 +1356,10 @@
@c11_generic
8
+
+ @lambdacapture
+ 28011
+
@stmt_expr
1486025
@@ -2148,7 +2148,7 @@
seconds
- 9868
+ 9149
@@ -2229,47 +2229,47 @@
3
4
- 679
+ 759
4
5
- 319
+ 239
- 6
- 7
+ 5
+ 8
159
- 7
+ 8
10
- 159
+ 119
10
11
- 79
+ 159
11
- 14
+ 15
159
- 16
- 18
+ 17
+ 19
159
- 19
- 27
+ 20
+ 44
159
- 41
- 88
- 119
+ 50
+ 92
+ 79
@@ -2337,42 +2337,42 @@
3
4
- 1518
+ 1478
4
5
- 319
+ 279
5
6
- 199
+ 239
6
7
- 399
+ 479
7
8
- 119
+ 39
8
- 10
+ 9
279
- 10
- 28
- 279
+ 9
+ 24
+ 239
- 28
- 86
- 199
+ 25
+ 88
+ 279
@@ -2420,16 +2420,21 @@
3
4
- 79
+ 39
- 134
- 135
+ 4
+ 5
39
- 148
- 149
+ 124
+ 125
+ 39
+
+
+ 129
+ 130
39
@@ -2446,27 +2451,27 @@
1
2
- 5033
+ 4394
2
3
- 2556
+ 1757
3
4
- 1438
+ 1518
4
- 16
- 759
+ 5
+ 998
- 27
+ 5
46
- 79
+ 479
@@ -2482,17 +2487,17 @@
1
2
- 4314
+ 4115
2
3
- 2237
+ 1478
3
4
- 1638
+ 1478
4
@@ -2501,13 +2506,13 @@
5
- 11
- 759
+ 6
+ 559
- 16
- 76
- 119
+ 6
+ 75
+ 719
@@ -2523,12 +2528,12 @@
1
2
- 8230
+ 7910
2
3
- 1638
+ 1238
@@ -2872,7 +2877,7 @@
cpu_seconds
- 7168
+ 7100
elapsed_seconds
@@ -2922,17 +2927,22 @@
1
2
- 5779
+ 5655
2
3
- 846
+ 857
3
- 18
- 541
+ 7
+ 553
+
+
+ 11
+ 13
+ 33
@@ -2948,7 +2958,7 @@
1
2
- 6468
+ 6400
2
@@ -2967,9 +2977,9 @@
12
- 1
- 2
- 22
+ 2
+ 3
+ 33
4
@@ -2977,18 +2987,13 @@
11
- 5
- 6
- 11
-
-
- 9
- 10
+ 8
+ 9
11
- 12
- 13
+ 13
+ 14
22
@@ -2997,18 +3002,23 @@
11
- 153
- 154
+ 159
+ 160
11
177
178
- 22
+ 11
- 261
- 262
+ 185
+ 186
+ 11
+
+
+ 247
+ 248
11
@@ -3023,9 +3033,9 @@
12
- 1
- 2
- 22
+ 2
+ 3
+ 33
4
@@ -3033,19 +3043,19 @@
11
- 5
- 6
+ 8
+ 9
11
- 9
- 10
+ 12
+ 13
11
- 12
- 13
- 22
+ 13
+ 14
+ 11
49
@@ -3053,23 +3063,23 @@
11
- 106
- 107
+ 112
+ 113
11
- 127
- 128
+ 124
+ 125
11
- 135
- 136
+ 145
+ 146
11
- 236
- 237
+ 218
+ 219
11
@@ -12346,15 +12356,15 @@
inmacroexpansion
- 109779198
+ 109779137
id
- 18027369
+ 18027366
inv
- 2700171
+ 2700175
@@ -12368,32 +12378,32 @@
1
3
- 1581956
+ 1581965
3
5
- 1077799
+ 1077798
5
6
- 1184884
+ 1184883
6
7
- 4819927
+ 4819923
7
8
- 6385963
+ 6385959
8
9
- 2605255
+ 2605253
9
@@ -12414,12 +12424,12 @@
1
2
- 378424
+ 378428
2
3
- 544108
+ 544105
3
@@ -12429,7 +12439,7 @@
4
7
- 200659
+ 200660
7
@@ -12449,12 +12459,12 @@
10
11
- 325487
+ 325486
11
337
- 224847
+ 224849
339
@@ -12474,15 +12484,15 @@
affectedbymacroexpansion
- 35689096
+ 35689082
id
- 5156743
+ 5156745
inv
- 2784774
+ 2784776
@@ -12496,12 +12506,12 @@
1
2
- 2815934
+ 2815933
2
3
- 560129
+ 560132
3
@@ -12542,7 +12552,7 @@
1
4
- 229116
+ 229120
4
@@ -12557,7 +12567,7 @@
9
12
- 251088
+ 251087
12
@@ -13883,14 +13893,6 @@
traits
3
-
- handle
- 6
-
-
- promise
- 6
-
@@ -13909,38 +13911,6 @@
-
- function
- handle
-
-
- 12
-
-
- 1
- 2
- 6
-
-
-
-
-
-
- function
- promise
-
-
- 12
-
-
- 1
- 2
- 6
-
-
-
-
-
traits
function
@@ -13967,35 +13937,29 @@
+
+
+
+ coroutine_placeholder_variable
+ 18
+
+
+ placeholder_variable
+ 18
+
+
+ kind
+ 3
+
+
+ function
+ 6
+
+
+
- traits
- handle
-
-
- 12
-
-
- 1
- 2
- 1
-
-
- 2
- 3
- 1
-
-
- 3
- 4
- 1
-
-
-
-
-
-
- traits
- promise
+ placeholder_variable
+ kind
12
@@ -14003,24 +13967,14 @@
1
2
- 1
-
-
- 2
- 3
- 1
-
-
- 3
- 4
- 1
+ 18
- handle
+ placeholder_variable
function
@@ -14029,70 +13983,54 @@
1
2
- 6
-
-
-
-
-
-
- handle
- traits
-
-
- 12
-
-
- 1
- 2
- 6
+ 18
- handle
- promise
+ kind
+ placeholder_variable
12
- 1
- 2
- 6
+ 6
+ 7
+ 3
- promise
+ kind
function
12
- 1
- 2
- 6
+ 6
+ 7
+ 3
- promise
- traits
+ function
+ placeholder_variable
12
- 1
- 2
+ 3
+ 4
6
@@ -14100,15 +14038,15 @@
- promise
- handle
+ function
+ kind
12
- 1
- 2
+ 3
+ 4
6
@@ -18313,7 +18251,7 @@
new
- 122753
+ 122752
old
@@ -18739,11 +18677,11 @@
localvariables
- 576947
+ 576946
id
- 576947
+ 576946
type_id
@@ -18765,7 +18703,7 @@
1
2
- 576947
+ 576946
@@ -18781,7 +18719,7 @@
1
2
- 576947
+ 576946
@@ -21817,11 +21755,11 @@
usertypes
- 5234031
+ 5234965
id
- 5234031
+ 5234965
name
@@ -21843,7 +21781,7 @@
1
2
- 5234031
+ 5234965
@@ -21859,7 +21797,7 @@
1
2
- 5234031
+ 5234965
@@ -21916,12 +21854,12 @@
2
3
- 125586
+ 125120
3
7
- 14939
+ 15406
@@ -21955,8 +21893,8 @@
466
- 133
- 134
+ 135
+ 136
466
@@ -22021,8 +21959,8 @@
466
- 41
- 42
+ 43
+ 44
466
@@ -22063,11 +22001,11 @@
usertypesize
- 1706394
+ 1707327
id
- 1706394
+ 1707327
size
@@ -22089,7 +22027,7 @@
1
2
- 1706394
+ 1707327
@@ -22105,7 +22043,7 @@
1
2
- 1706394
+ 1707327
@@ -22160,7 +22098,7 @@
740
- 2470
+ 2472
933
@@ -22221,8 +22159,8 @@
466
- 3209
- 3210
+ 3211
+ 3212
466
@@ -22333,11 +22271,11 @@
mangled_name
- 9019378
+ 9020312
id
- 9019378
+ 9020312
mangled_name
@@ -22359,7 +22297,7 @@
1
2
- 9019378
+ 9020312
@@ -22375,7 +22313,7 @@
1
2
- 9019378
+ 9020312
@@ -22426,8 +22364,8 @@
12
- 19319
- 19320
+ 19321
+ 19322
466
@@ -22465,22 +22403,22 @@
is_standard_layout_class
- 1254001
+ 1254935
id
- 1254001
+ 1254935
is_complete
- 1645701
+ 1646635
id
- 1645701
+ 1646635
@@ -22998,15 +22936,15 @@
is_proxy_class_for
- 62093
+ 63026
id
- 62093
+ 63026
templ_param_id
- 62093
+ 63026
@@ -23020,7 +22958,7 @@
1
2
- 62093
+ 63026
@@ -23036,7 +22974,7 @@
1
2
- 62093
+ 63026
@@ -24962,11 +24900,11 @@
typespecifiers
- 1132149
+ 1133083
type_id
- 1113941
+ 1114875
spec_id
@@ -24984,7 +24922,7 @@
1
2
- 1095733
+ 1096667
2
@@ -25030,7 +24968,12 @@
219
220
- 933
+ 466
+
+
+ 221
+ 222
+ 466
1701
@@ -25045,7 +24988,7 @@
funspecifiers
- 10305126
+ 10304659
func_id
@@ -25072,12 +25015,12 @@
2
3
- 640539
+ 641006
3
4
- 985553
+ 985086
4
@@ -25186,8 +25129,8 @@
466
- 6435
- 6436
+ 6434
+ 6435
466
@@ -26862,15 +26805,15 @@
unspecifiedtype
- 9488111
+ 9489045
type_id
- 9488111
+ 9489045
unspecified_type_id
- 6490367
+ 6491300
@@ -26884,7 +26827,7 @@
1
2
- 9488111
+ 9489045
@@ -26900,7 +26843,7 @@
1
2
- 4558943
+ 4559877
2
@@ -28814,15 +28757,15 @@
exprconv
- 7033025
+ 7033022
converted
- 7033025
+ 7033022
conversion
- 7033025
+ 7033022
@@ -28836,7 +28779,7 @@
1
2
- 7033025
+ 7033022
@@ -28852,7 +28795,7 @@
1
2
- 7033025
+ 7033022
@@ -29857,7 +29800,7 @@
qualifyingelement
- 97538
+ 97519
location
@@ -29971,7 +29914,7 @@
1
2
- 58420
+ 58401
2
@@ -30007,7 +29950,7 @@
1
2
- 58420
+ 58401
2
@@ -30043,7 +29986,7 @@
1
2
- 63834
+ 63815
2
@@ -30156,12 +30099,12 @@
1
2
- 137055
+ 137074
2
3
- 55703
+ 55684
3
@@ -30282,7 +30225,7 @@
fun
- 511325
+ 511344
@@ -30317,12 +30260,12 @@
1
2
- 315052
+ 315090
2
3
- 77912
+ 77893
3
@@ -30625,15 +30568,15 @@
expr_cond_guard
- 657238
+ 657237
cond
- 657238
+ 657237
guard
- 657238
+ 657237
@@ -30647,7 +30590,7 @@
1
2
- 657238
+ 657237
@@ -30663,7 +30606,7 @@
1
2
- 657238
+ 657237
@@ -30721,15 +30664,15 @@
expr_cond_false
- 657238
+ 657237
cond
- 657238
+ 657237
false
- 657238
+ 657237
@@ -30743,7 +30686,7 @@
1
2
- 657238
+ 657237
@@ -30759,7 +30702,7 @@
1
2
- 657238
+ 657237
@@ -36328,11 +36271,11 @@
stmt_decl_bind
- 580844
+ 580843
stmt
- 541062
+ 541061
num
@@ -36340,7 +36283,7 @@
decl
- 580740
+ 580739
@@ -36354,7 +36297,7 @@
1
2
- 520373
+ 520372
2
@@ -36375,7 +36318,7 @@
1
2
- 520373
+ 520372
2
@@ -36578,7 +36521,7 @@
1
2
- 580703
+ 580702
2
@@ -36599,7 +36542,7 @@
1
2
- 580740
+ 580739
@@ -36609,11 +36552,11 @@
stmt_decl_entry_bind
- 580844
+ 580843
stmt
- 541062
+ 541061
num
@@ -36621,7 +36564,7 @@
decl_entry
- 580786
+ 580785
@@ -36635,7 +36578,7 @@
1
2
- 520373
+ 520372
2
@@ -36656,7 +36599,7 @@
1
2
- 520373
+ 520372
2
@@ -36859,7 +36802,7 @@
1
2
- 580765
+ 580764
3
@@ -36880,7 +36823,7 @@
1
2
- 580786
+ 580785
diff --git a/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/old.dbscheme b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/old.dbscheme
new file mode 100644
index 000000000000..0fea0ee7026c
--- /dev/null
+++ b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/old.dbscheme
@@ -0,0 +1,2319 @@
+
+/**
+ * An invocation of the compiler. Note that more than one file may be
+ * compiled per invocation. For example, this command compiles three
+ * source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * The `id` simply identifies the invocation, while `cwd` is the working
+ * directory from which the compiler was invoked.
+ */
+compilations(
+ /**
+ * An invocation of the compiler. Note that more than one file may
+ * be compiled per invocation. For example, this command compiles
+ * three source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ */
+ unique int id : @compilation,
+ string cwd : string ref
+);
+
+/**
+ * The arguments that were passed to the extractor for a compiler
+ * invocation. If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then typically there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | *path to extractor*
+ * 1 | `--mimic`
+ * 2 | `/usr/bin/gcc`
+ * 3 | `-c`
+ * 4 | f1.c
+ * 5 | f2.c
+ * 6 | f3.c
+ */
+#keyset[id, num]
+compilation_args(
+ int id : @compilation ref,
+ int num : int ref,
+ string arg : string ref
+);
+
+/**
+ * The source files that are compiled by a compiler invocation.
+ * If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | f1.c
+ * 1 | f2.c
+ * 2 | f3.c
+ *
+ * Note that even if those files `#include` headers, those headers
+ * do not appear as rows.
+ */
+#keyset[id, num]
+compilation_compiling_files(
+ int id : @compilation ref,
+ int num : int ref,
+ int file : @file ref
+);
+
+/**
+ * The time taken by the extractor for a compiler invocation.
+ *
+ * For each file `num`, there will be rows for
+ *
+ * kind | seconds
+ * ---- | ---
+ * 1 | CPU seconds used by the extractor frontend
+ * 2 | Elapsed seconds during the extractor frontend
+ * 3 | CPU seconds used by the extractor backend
+ * 4 | Elapsed seconds during the extractor backend
+ */
+#keyset[id, num, kind]
+compilation_time(
+ int id : @compilation ref,
+ int num : int ref,
+ /* kind:
+ 1 = frontend_cpu_seconds
+ 2 = frontend_elapsed_seconds
+ 3 = extractor_cpu_seconds
+ 4 = extractor_elapsed_seconds
+ */
+ int kind : int ref,
+ float seconds : float ref
+);
+
+/**
+ * An error or warning generated by the extractor.
+ * The diagnostic message `diagnostic` was generated during compiler
+ * invocation `compilation`, and is the `file_number_diagnostic_number`th
+ * message generated while extracting the `file_number`th file of that
+ * invocation.
+ */
+#keyset[compilation, file_number, file_number_diagnostic_number]
+diagnostic_for(
+ int diagnostic : @diagnostic ref,
+ int compilation : @compilation ref,
+ int file_number : int ref,
+ int file_number_diagnostic_number : int ref
+);
+
+/**
+ * If extraction was successful, then `cpu_seconds` and
+ * `elapsed_seconds` are the CPU time and elapsed time (respectively)
+ * that extraction took for compiler invocation `id`.
+ */
+compilation_finished(
+ unique int id : @compilation ref,
+ float cpu_seconds : float ref,
+ float elapsed_seconds : float ref
+);
+
+
+/**
+ * External data, loaded from CSV files during snapshot creation. See
+ * [Tutorial: Incorporating external data](https://help.semmle.com/wiki/display/SD/Tutorial%3A+Incorporating+external+data)
+ * for more information.
+ */
+externalData(
+ int id : @externalDataElement,
+ string path : string ref,
+ int column: int ref,
+ string value : string ref
+);
+
+/**
+ * The source location of the snapshot.
+ */
+sourceLocationPrefix(string prefix : string ref);
+
+/**
+ * Information about packages that provide code used during compilation.
+ * The `id` is just a unique identifier.
+ * The `namespace` is typically the name of the package manager that
+ * provided the package (e.g. "dpkg" or "yum").
+ * The `package_name` is the name of the package, and `version` is its
+ * version (as a string).
+ */
+external_packages(
+ unique int id: @external_package,
+ string namespace : string ref,
+ string package_name : string ref,
+ string version : string ref
+);
+
+/**
+ * Holds if File `fileid` was provided by package `package`.
+ */
+header_to_external_package(
+ int fileid : @file ref,
+ int package : @external_package ref
+);
+
+/*
+ * Version history
+ */
+
+svnentries(
+ unique int id : @svnentry,
+ string revision : string ref,
+ string author : string ref,
+ date revisionDate : date ref,
+ int changeSize : int ref
+)
+
+svnaffectedfiles(
+ int id : @svnentry ref,
+ int file : @file ref,
+ string action : string ref
+)
+
+svnentrymsg(
+ unique int id : @svnentry ref,
+ string message : string ref
+)
+
+svnchurn(
+ int commit : @svnentry ref,
+ int file : @file ref,
+ int addedLines : int ref,
+ int deletedLines : int ref
+)
+
+/*
+ * C++ dbscheme
+ */
+
+extractor_version(
+ string codeql_version: string ref,
+ string frontend_version: string ref
+)
+
+@location = @location_stmt | @location_expr | @location_default ;
+
+/**
+ * The location of an element that is not an expression or a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_default(
+ /** The location of an element that is not an expression or a statement. */
+ unique int id: @location_default,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_stmt(
+ /** The location of a statement. */
+ unique int id: @location_stmt,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of an expression.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_expr(
+ /** The location of an expression. */
+ unique int id: @location_expr,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/** An element for which line-count information is available. */
+@sourceline = @file | @function | @variable | @enumconstant | @xmllocatable;
+
+numlines(
+ int element_id: @sourceline ref,
+ int num_lines: int ref,
+ int num_code: int ref,
+ int num_comment: int ref
+);
+
+diagnostics(
+ unique int id: @diagnostic,
+ int severity: int ref,
+ string error_tag: string ref,
+ string error_message: string ref,
+ string full_error_message: string ref,
+ int location: @location_default ref
+);
+
+files(
+ unique int id: @file,
+ string name: string ref
+);
+
+folders(
+ unique int id: @folder,
+ string name: string ref
+);
+
+@container = @folder | @file
+
+containerparent(
+ int parent: @container ref,
+ unique int child: @container ref
+);
+
+fileannotations(
+ int id: @file ref,
+ int kind: int ref,
+ string name: string ref,
+ string value: string ref
+);
+
+inmacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+affectedbymacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+case @macroinvocation.kind of
+ 1 = @macro_expansion
+| 2 = @other_macro_reference
+;
+
+macroinvocations(
+ unique int id: @macroinvocation,
+ int macro_id: @ppd_define ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+macroparent(
+ unique int id: @macroinvocation ref,
+ int parent_id: @macroinvocation ref
+);
+
+// a macroinvocation may be part of another location
+// the way to find a constant expression that uses a macro
+// is thus to find a constant expression that has a location
+// to which a macro invocation is bound
+macrolocationbind(
+ int id: @macroinvocation ref,
+ int location: @location ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_unexpanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_expanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+/*
+case @function.kind of
+ 1 = @normal_function
+| 2 = @constructor
+| 3 = @destructor
+| 4 = @conversion_function
+| 5 = @operator
+| 6 = @builtin_function // GCC built-in functions, e.g. __builtin___memcpy_chk
+| 7 = @user_defined_literal
+| 8 = @deduction_guide
+;
+*/
+
+functions(
+ unique int id: @function,
+ string name: string ref,
+ int kind: int ref
+);
+
+function_entry_point(
+ int id: @function ref,
+ unique int entry_point: @stmt ref
+);
+
+function_return_type(
+ int id: @function ref,
+ int return_type: @type ref
+);
+
+/**
+ * If `function` is a coroutine, then this gives the `std::experimental::resumable_traits`
+ * instance associated with it, and the variables representing the `handle` and `promise`
+ * for it.
+ */
+coroutine(
+ unique int function: @function ref,
+ int traits: @type ref,
+ int handle: @variable ref,
+ int promise: @variable ref
+);
+
+/** The `new` function used for allocating the coroutine state, if any. */
+coroutine_new(
+ unique int function: @function ref,
+ int new: @function ref
+);
+
+/** The `delete` function used for deallocating the coroutine state, if any. */
+coroutine_delete(
+ unique int function: @function ref,
+ int delete: @function ref
+);
+
+purefunctions(unique int id: @function ref);
+
+function_deleted(unique int id: @function ref);
+
+function_defaulted(unique int id: @function ref);
+
+function_prototyped(unique int id: @function ref)
+
+deduction_guide_for_class(
+ int id: @function ref,
+ int class_template: @usertype ref
+)
+
+member_function_this_type(
+ unique int id: @function ref,
+ int this_type: @type ref
+);
+
+#keyset[id, type_id]
+fun_decls(
+ int id: @fun_decl,
+ int function: @function ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+fun_def(unique int id: @fun_decl ref);
+fun_specialized(unique int id: @fun_decl ref);
+fun_implicit(unique int id: @fun_decl ref);
+fun_decl_specifiers(
+ int id: @fun_decl ref,
+ string name: string ref
+)
+#keyset[fun_decl, index]
+fun_decl_throws(
+ int fun_decl: @fun_decl ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+/* an empty throw specification is different from none */
+fun_decl_empty_throws(unique int fun_decl: @fun_decl ref);
+fun_decl_noexcept(
+ int fun_decl: @fun_decl ref,
+ int constant: @expr ref
+);
+fun_decl_empty_noexcept(int fun_decl: @fun_decl ref);
+fun_decl_typedef_type(
+ unique int fun_decl: @fun_decl ref,
+ int typedeftype_id: @usertype ref
+);
+
+param_decl_bind(
+ unique int id: @var_decl ref,
+ int index: int ref,
+ int fun_decl: @fun_decl ref
+);
+
+#keyset[id, type_id]
+var_decls(
+ int id: @var_decl,
+ int variable: @variable ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+var_def(unique int id: @var_decl ref);
+var_decl_specifiers(
+ int id: @var_decl ref,
+ string name: string ref
+)
+is_structured_binding(unique int id: @variable ref);
+
+type_decls(
+ unique int id: @type_decl,
+ int type_id: @type ref,
+ int location: @location_default ref
+);
+type_def(unique int id: @type_decl ref);
+type_decl_top(
+ unique int type_decl: @type_decl ref
+);
+
+namespace_decls(
+ unique int id: @namespace_decl,
+ int namespace_id: @namespace ref,
+ int location: @location_default ref,
+ int bodylocation: @location_default ref
+);
+
+case @using.kind of
+ 1 = @using_declaration
+| 2 = @using_directive
+| 3 = @using_enum_declaration
+;
+
+usings(
+ unique int id: @using,
+ int element_id: @element ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+/** The element which contains the `using` declaration. */
+using_container(
+ int parent: @element ref,
+ int child: @using ref
+);
+
+static_asserts(
+ unique int id: @static_assert,
+ int condition : @expr ref,
+ string message : string ref,
+ int location: @location_default ref,
+ int enclosing : @element ref
+);
+
+// each function has an ordered list of parameters
+#keyset[id, type_id]
+#keyset[function, index, type_id]
+params(
+ int id: @parameter,
+ int function: @functionorblock ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+overrides(
+ int new: @function ref,
+ int old: @function ref
+);
+
+#keyset[id, type_id]
+membervariables(
+ int id: @membervariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+globalvariables(
+ int id: @globalvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+localvariables(
+ int id: @localvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+autoderivation(
+ unique int var: @variable ref,
+ int derivation_type: @type ref
+);
+
+orphaned_variables(
+ int var: @localvariable ref,
+ int function: @function ref
+)
+
+enumconstants(
+ unique int id: @enumconstant,
+ int parent: @usertype ref,
+ int index: int ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+
+@variable = @localscopevariable | @globalvariable | @membervariable;
+
+@localscopevariable = @localvariable | @parameter;
+
+/**
+ * Built-in types are the fundamental types, e.g., integral, floating, and void.
+ */
+case @builtintype.kind of
+ 1 = @errortype
+| 2 = @unknowntype
+| 3 = @void
+| 4 = @boolean
+| 5 = @char
+| 6 = @unsigned_char
+| 7 = @signed_char
+| 8 = @short
+| 9 = @unsigned_short
+| 10 = @signed_short
+| 11 = @int
+| 12 = @unsigned_int
+| 13 = @signed_int
+| 14 = @long
+| 15 = @unsigned_long
+| 16 = @signed_long
+| 17 = @long_long
+| 18 = @unsigned_long_long
+| 19 = @signed_long_long
+// ... 20 Microsoft-specific __int8
+// ... 21 Microsoft-specific __int16
+// ... 22 Microsoft-specific __int32
+// ... 23 Microsoft-specific __int64
+| 24 = @float
+| 25 = @double
+| 26 = @long_double
+| 27 = @complex_float // C99-specific _Complex float
+| 28 = @complex_double // C99-specific _Complex double
+| 29 = @complex_long_double // C99-specific _Complex long double
+| 30 = @imaginary_float // C99-specific _Imaginary float
+| 31 = @imaginary_double // C99-specific _Imaginary double
+| 32 = @imaginary_long_double // C99-specific _Imaginary long double
+| 33 = @wchar_t // Microsoft-specific
+| 34 = @decltype_nullptr // C++11
+| 35 = @int128 // __int128
+| 36 = @unsigned_int128 // unsigned __int128
+| 37 = @signed_int128 // signed __int128
+| 38 = @float128 // __float128
+| 39 = @complex_float128 // _Complex __float128
+| 40 = @decimal32 // _Decimal32
+| 41 = @decimal64 // _Decimal64
+| 42 = @decimal128 // _Decimal128
+| 43 = @char16_t
+| 44 = @char32_t
+| 45 = @std_float32 // _Float32
+| 46 = @float32x // _Float32x
+| 47 = @std_float64 // _Float64
+| 48 = @float64x // _Float64x
+| 49 = @std_float128 // _Float128
+// ... 50 _Float128x
+| 51 = @char8_t
+| 52 = @float16 // _Float16
+| 53 = @complex_float16 // _Complex _Float16
+| 54 = @fp16 // __fp16
+| 55 = @std_bfloat16 // __bf16
+| 56 = @std_float16 // std::float16_t
+| 57 = @complex_std_float32 // _Complex _Float32
+| 58 = @complex_float32x // _Complex _Float32x
+| 59 = @complex_std_float64 // _Complex _Float64
+| 60 = @complex_float64x // _Complex _Float64x
+| 61 = @complex_std_float128 // _Complex _Float128
+;
+
+builtintypes(
+ unique int id: @builtintype,
+ string name: string ref,
+ int kind: int ref,
+ int size: int ref,
+ int sign: int ref,
+ int alignment: int ref
+);
+
+/**
+ * Derived types are types that are directly derived from existing types and
+ * point to, refer to, transform type data to return a new type.
+ */
+case @derivedtype.kind of
+ 1 = @pointer
+| 2 = @reference
+| 3 = @type_with_specifiers
+| 4 = @array
+| 5 = @gnu_vector
+| 6 = @routineptr
+| 7 = @routinereference
+| 8 = @rvalue_reference // C++11
+// ... 9 type_conforming_to_protocols deprecated
+| 10 = @block
+;
+
+derivedtypes(
+ unique int id: @derivedtype,
+ string name: string ref,
+ int kind: int ref,
+ int type_id: @type ref
+);
+
+pointerishsize(unique int id: @derivedtype ref,
+ int size: int ref,
+ int alignment: int ref);
+
+arraysizes(
+ unique int id: @derivedtype ref,
+ int num_elements: int ref,
+ int bytesize: int ref,
+ int alignment: int ref
+);
+
+typedefbase(
+ unique int id: @usertype ref,
+ int type_id: @type ref
+);
+
+/**
+ * An instance of the C++11 `decltype` operator. For example:
+ * ```
+ * int a;
+ * decltype(1+a) b;
+ * ```
+ * Here `expr` is `1+a`.
+ *
+ * Sometimes an additional pair of parentheses around the expression
+ * would change the semantics of this decltype, e.g.
+ * ```
+ * struct A { double x; };
+ * const A* a = new A();
+ * decltype( a->x ); // type is double
+ * decltype((a->x)); // type is const double&
+ * ```
+ * (Please consult the C++11 standard for more details).
+ * `parentheses_would_change_meaning` is `true` iff that is the case.
+ */
+#keyset[id, expr]
+decltypes(
+ int id: @decltype,
+ int expr: @expr ref,
+ int base_type: @type ref,
+ boolean parentheses_would_change_meaning: boolean ref
+);
+
+/*
+case @usertype.kind of
+ 1 = @struct
+| 2 = @class
+| 3 = @union
+| 4 = @enum
+| 5 = @typedef // classic C: typedef typedef type name
+| 6 = @template
+| 7 = @template_parameter
+| 8 = @template_template_parameter
+| 9 = @proxy_class // a proxy class associated with a template parameter
+// ... 10 objc_class deprecated
+// ... 11 objc_protocol deprecated
+// ... 12 objc_category deprecated
+| 13 = @scoped_enum
+| 14 = @using_alias // a using name = type style typedef
+;
+*/
+
+usertypes(
+ unique int id: @usertype,
+ string name: string ref,
+ int kind: int ref
+);
+
+usertypesize(
+ unique int id: @usertype ref,
+ int size: int ref,
+ int alignment: int ref
+);
+
+usertype_final(unique int id: @usertype ref);
+
+usertype_uuid(
+ unique int id: @usertype ref,
+ string uuid: string ref
+);
+
+mangled_name(
+ unique int id: @declaration ref,
+ int mangled_name : @mangledname,
+ boolean is_complete: boolean ref
+);
+
+is_pod_class(unique int id: @usertype ref);
+is_standard_layout_class(unique int id: @usertype ref);
+
+is_complete(unique int id: @usertype ref);
+
+is_class_template(unique int id: @usertype ref);
+class_instantiation(
+ int to: @usertype ref,
+ int from: @usertype ref
+);
+class_template_argument(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+class_template_argument_value(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_proxy_class_for(
+ unique int id: @usertype ref,
+ unique int templ_param_id: @usertype ref
+);
+
+type_mentions(
+ unique int id: @type_mention,
+ int type_id: @type ref,
+ int location: @location ref,
+ // a_symbol_reference_kind from the frontend.
+ int kind: int ref
+);
+
+is_function_template(unique int id: @function ref);
+function_instantiation(
+ unique int to: @function ref,
+ int from: @function ref
+);
+function_template_argument(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+function_template_argument_value(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_variable_template(unique int id: @variable ref);
+variable_instantiation(
+ unique int to: @variable ref,
+ int from: @variable ref
+);
+variable_template_argument(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+variable_template_argument_value(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+/*
+ Fixed point types
+ precision(1) = short, precision(2) = default, precision(3) = long
+ is_unsigned(1) = unsigned is_unsigned(2) = signed
+ is_fract_type(1) = declared with _Fract
+ saturating(1) = declared with _Sat
+*/
+/* TODO
+fixedpointtypes(
+ unique int id: @fixedpointtype,
+ int precision: int ref,
+ int is_unsigned: int ref,
+ int is_fract_type: int ref,
+ int saturating: int ref);
+*/
+
+routinetypes(
+ unique int id: @routinetype,
+ int return_type: @type ref
+);
+
+routinetypeargs(
+ int routine: @routinetype ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+ptrtomembers(
+ unique int id: @ptrtomember,
+ int type_id: @type ref,
+ int class_id: @type ref
+);
+
+/*
+ specifiers for types, functions, and variables
+
+ "public",
+ "protected",
+ "private",
+
+ "const",
+ "volatile",
+ "static",
+
+ "pure",
+ "virtual",
+ "sealed", // Microsoft
+ "__interface", // Microsoft
+ "inline",
+ "explicit",
+
+ "near", // near far extension
+ "far", // near far extension
+ "__ptr32", // Microsoft
+ "__ptr64", // Microsoft
+ "__sptr", // Microsoft
+ "__uptr", // Microsoft
+ "dllimport", // Microsoft
+ "dllexport", // Microsoft
+ "thread", // Microsoft
+ "naked", // Microsoft
+ "microsoft_inline", // Microsoft
+ "forceinline", // Microsoft
+ "selectany", // Microsoft
+ "nothrow", // Microsoft
+ "novtable", // Microsoft
+ "noreturn", // Microsoft
+ "noinline", // Microsoft
+ "noalias", // Microsoft
+ "restrict", // Microsoft
+*/
+
+specifiers(
+ unique int id: @specifier,
+ unique string str: string ref
+);
+
+typespecifiers(
+ int type_id: @type ref,
+ int spec_id: @specifier ref
+);
+
+funspecifiers(
+ int func_id: @function ref,
+ int spec_id: @specifier ref
+);
+
+varspecifiers(
+ int var_id: @accessible ref,
+ int spec_id: @specifier ref
+);
+
+explicit_specifier_exprs(
+ unique int func_id: @function ref,
+ int constant: @expr ref
+)
+
+attributes(
+ unique int id: @attribute,
+ int kind: int ref,
+ string name: string ref,
+ string name_space: string ref,
+ int location: @location_default ref
+);
+
+case @attribute.kind of
+ 0 = @gnuattribute
+| 1 = @stdattribute
+| 2 = @declspec
+| 3 = @msattribute
+| 4 = @alignas
+// ... 5 @objc_propertyattribute deprecated
+;
+
+attribute_args(
+ unique int id: @attribute_arg,
+ int kind: int ref,
+ int attribute: @attribute ref,
+ int index: int ref,
+ int location: @location_default ref
+);
+
+case @attribute_arg.kind of
+ 0 = @attribute_arg_empty
+| 1 = @attribute_arg_token
+| 2 = @attribute_arg_constant
+| 3 = @attribute_arg_type
+| 4 = @attribute_arg_constant_expr
+| 5 = @attribute_arg_expr
+;
+
+attribute_arg_value(
+ unique int arg: @attribute_arg ref,
+ string value: string ref
+);
+attribute_arg_type(
+ unique int arg: @attribute_arg ref,
+ int type_id: @type ref
+);
+attribute_arg_constant(
+ unique int arg: @attribute_arg ref,
+ int constant: @expr ref
+)
+attribute_arg_expr(
+ unique int arg: @attribute_arg ref,
+ int expr: @expr ref
+)
+attribute_arg_name(
+ unique int arg: @attribute_arg ref,
+ string name: string ref
+);
+
+typeattributes(
+ int type_id: @type ref,
+ int spec_id: @attribute ref
+);
+
+funcattributes(
+ int func_id: @function ref,
+ int spec_id: @attribute ref
+);
+
+varattributes(
+ int var_id: @accessible ref,
+ int spec_id: @attribute ref
+);
+
+stmtattributes(
+ int stmt_id: @stmt ref,
+ int spec_id: @attribute ref
+);
+
+@type = @builtintype
+ | @derivedtype
+ | @usertype
+ /* TODO | @fixedpointtype */
+ | @routinetype
+ | @ptrtomember
+ | @decltype;
+
+unspecifiedtype(
+ unique int type_id: @type ref,
+ int unspecified_type_id: @type ref
+);
+
+member(
+ int parent: @type ref,
+ int index: int ref,
+ int child: @member ref
+);
+
+@enclosingfunction_child = @usertype | @variable | @namespace
+
+enclosingfunction(
+ unique int child: @enclosingfunction_child ref,
+ int parent: @function ref
+);
+
+derivations(
+ unique int derivation: @derivation,
+ int sub: @type ref,
+ int index: int ref,
+ int super: @type ref,
+ int location: @location_default ref
+);
+
+derspecifiers(
+ int der_id: @derivation ref,
+ int spec_id: @specifier ref
+);
+
+/**
+ * Contains the byte offset of the base class subobject within the derived
+ * class. Only holds for non-virtual base classes, but see table
+ * `virtual_base_offsets` for offsets of virtual base class subobjects.
+ */
+direct_base_offsets(
+ unique int der_id: @derivation ref,
+ int offset: int ref
+);
+
+/**
+ * Contains the byte offset of the virtual base class subobject for class
+ * `super` within a most-derived object of class `sub`. `super` can be either a
+ * direct or indirect base class.
+ */
+#keyset[sub, super]
+virtual_base_offsets(
+ int sub: @usertype ref,
+ int super: @usertype ref,
+ int offset: int ref
+);
+
+frienddecls(
+ unique int id: @frienddecl,
+ int type_id: @type ref,
+ int decl_id: @declaration ref,
+ int location: @location_default ref
+);
+
+@declaredtype = @usertype ;
+
+@declaration = @function
+ | @declaredtype
+ | @variable
+ | @enumconstant
+ | @frienddecl;
+
+@member = @membervariable
+ | @function
+ | @declaredtype
+ | @enumconstant;
+
+@locatable = @diagnostic
+ | @declaration
+ | @ppd_include
+ | @ppd_define
+ | @macroinvocation
+ /*| @funcall*/
+ | @xmllocatable
+ | @attribute
+ | @attribute_arg;
+
+@namedscope = @namespace | @usertype;
+
+@element = @locatable
+ | @file
+ | @folder
+ | @specifier
+ | @type
+ | @expr
+ | @namespace
+ | @initialiser
+ | @stmt
+ | @derivation
+ | @comment
+ | @preprocdirect
+ | @fun_decl
+ | @var_decl
+ | @type_decl
+ | @namespace_decl
+ | @using
+ | @namequalifier
+ | @specialnamequalifyingelement
+ | @static_assert
+ | @type_mention
+ | @lambdacapture;
+
+@exprparent = @element;
+
+comments(
+ unique int id: @comment,
+ string contents: string ref,
+ int location: @location_default ref
+);
+
+commentbinding(
+ int id: @comment ref,
+ int element: @element ref
+);
+
+exprconv(
+ int converted: @expr ref,
+ unique int conversion: @expr ref
+);
+
+compgenerated(unique int id: @element ref);
+
+/**
+ * `destructor_call` destructs the `i`'th entity that should be
+ * destructed following `element`. Note that entities should be
+ * destructed in reverse construction order, so for a given `element`
+ * these should be called from highest to lowest `i`.
+ */
+#keyset[element, destructor_call]
+#keyset[element, i]
+synthetic_destructor_call(
+ int element: @element ref,
+ int i: int ref,
+ int destructor_call: @routineexpr ref
+);
+
+namespaces(
+ unique int id: @namespace,
+ string name: string ref
+);
+
+namespace_inline(
+ unique int id: @namespace ref
+);
+
+namespacembrs(
+ int parentid: @namespace ref,
+ unique int memberid: @namespacembr ref
+);
+
+@namespacembr = @declaration | @namespace;
+
+exprparents(
+ int expr_id: @expr ref,
+ int child_index: int ref,
+ int parent_id: @exprparent ref
+);
+
+expr_isload(unique int expr_id: @expr ref);
+
+@cast = @c_style_cast
+ | @const_cast
+ | @dynamic_cast
+ | @reinterpret_cast
+ | @static_cast
+ ;
+
+/*
+case @conversion.kind of
+ 0 = @simple_conversion // a numeric conversion, qualification conversion, or a reinterpret_cast
+| 1 = @bool_conversion // conversion to 'bool'
+| 2 = @base_class_conversion // a derived-to-base conversion
+| 3 = @derived_class_conversion // a base-to-derived conversion
+| 4 = @pm_base_class_conversion // a derived-to-base conversion of a pointer to member
+| 5 = @pm_derived_class_conversion // a base-to-derived conversion of a pointer to member
+| 6 = @glvalue_adjust // an adjustment of the type of a glvalue
+| 7 = @prvalue_adjust // an adjustment of the type of a prvalue
+;
+*/
+/**
+ * Describes the semantics represented by a cast expression. This is largely
+ * independent of the source syntax of the cast, so it is separate from the
+ * regular expression kind.
+ */
+conversionkinds(
+ unique int expr_id: @cast ref,
+ int kind: int ref
+);
+
+@conversion = @cast
+ | @array_to_pointer
+ | @parexpr
+ | @reference_to
+ | @ref_indirect
+ | @temp_init
+ | @c11_generic
+ ;
+
+/*
+case @funbindexpr.kind of
+ 0 = @normal_call // a normal call
+| 1 = @virtual_call // a virtual call
+| 2 = @adl_call // a call whose target is only found by ADL
+;
+*/
+iscall(
+ unique int caller: @funbindexpr ref,
+ int kind: int ref
+);
+
+numtemplatearguments(
+ unique int expr_id: @expr ref,
+ int num: int ref
+);
+
+specialnamequalifyingelements(
+ unique int id: @specialnamequalifyingelement,
+ unique string name: string ref
+);
+
+@namequalifiableelement = @expr | @namequalifier;
+@namequalifyingelement = @namespace
+ | @specialnamequalifyingelement
+ | @usertype;
+
+namequalifiers(
+ unique int id: @namequalifier,
+ unique int qualifiableelement: @namequalifiableelement ref,
+ int qualifyingelement: @namequalifyingelement ref,
+ int location: @location_default ref
+);
+
+varbind(
+ int expr: @varbindexpr ref,
+ int var: @accessible ref
+);
+
+funbind(
+ int expr: @funbindexpr ref,
+ int fun: @function ref
+);
+
+@any_new_expr = @new_expr
+ | @new_array_expr;
+
+@new_or_delete_expr = @any_new_expr
+ | @delete_expr
+ | @delete_array_expr;
+
+@prefix_crement_expr = @preincrexpr | @predecrexpr;
+
+@postfix_crement_expr = @postincrexpr | @postdecrexpr;
+
+@increment_expr = @preincrexpr | @postincrexpr;
+
+@decrement_expr = @predecrexpr | @postdecrexpr;
+
+@crement_expr = @increment_expr | @decrement_expr;
+
+@un_arith_op_expr = @arithnegexpr
+ | @unaryplusexpr
+ | @conjugation
+ | @realpartexpr
+ | @imagpartexpr
+ | @crement_expr
+ ;
+
+@un_bitwise_op_expr = @complementexpr;
+
+@un_log_op_expr = @notexpr;
+
+@un_op_expr = @address_of
+ | @indirect
+ | @un_arith_op_expr
+ | @un_bitwise_op_expr
+ | @builtinaddressof
+ | @vec_fill
+ | @un_log_op_expr
+ | @co_await
+ | @co_yield
+ ;
+
+@bin_log_op_expr = @andlogicalexpr | @orlogicalexpr;
+
+@cmp_op_expr = @eq_op_expr | @rel_op_expr;
+
+@eq_op_expr = @eqexpr | @neexpr;
+
+@rel_op_expr = @gtexpr
+ | @ltexpr
+ | @geexpr
+ | @leexpr
+ | @spaceshipexpr
+ ;
+
+@bin_bitwise_op_expr = @lshiftexpr
+ | @rshiftexpr
+ | @andexpr
+ | @orexpr
+ | @xorexpr
+ ;
+
+@p_arith_op_expr = @paddexpr
+ | @psubexpr
+ | @pdiffexpr
+ ;
+
+@bin_arith_op_expr = @addexpr
+ | @subexpr
+ | @mulexpr
+ | @divexpr
+ | @remexpr
+ | @jmulexpr
+ | @jdivexpr
+ | @fjaddexpr
+ | @jfaddexpr
+ | @fjsubexpr
+ | @jfsubexpr
+ | @minexpr
+ | @maxexpr
+ | @p_arith_op_expr
+ ;
+
+@bin_op_expr = @bin_arith_op_expr
+ | @bin_bitwise_op_expr
+ | @cmp_op_expr
+ | @bin_log_op_expr
+ ;
+
+@op_expr = @un_op_expr
+ | @bin_op_expr
+ | @assign_expr
+ | @conditionalexpr
+ ;
+
+@assign_arith_expr = @assignaddexpr
+ | @assignsubexpr
+ | @assignmulexpr
+ | @assigndivexpr
+ | @assignremexpr
+ ;
+
+@assign_bitwise_expr = @assignandexpr
+ | @assignorexpr
+ | @assignxorexpr
+ | @assignlshiftexpr
+ | @assignrshiftexpr
+ ;
+
+@assign_pointer_expr = @assignpaddexpr
+ | @assignpsubexpr
+ ;
+
+@assign_op_expr = @assign_arith_expr
+ | @assign_bitwise_expr
+ | @assign_pointer_expr
+ ;
+
+@assign_expr = @assignexpr | @assign_op_expr | @blockassignexpr
+
+/*
+ Binary encoding of the allocator form.
+
+ case @allocator.form of
+ 0 = plain
+ | 1 = alignment
+ ;
+*/
+
+/**
+ * The allocator function associated with a `new` or `new[]` expression.
+ * The `form` column specified whether the allocation call contains an alignment
+ * argument.
+ */
+expr_allocator(
+ unique int expr: @any_new_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/*
+ Binary encoding of the deallocator form.
+
+ case @deallocator.form of
+ 0 = plain
+ | 1 = size
+ | 2 = alignment
+ | 4 = destroying_delete
+ ;
+*/
+
+/**
+ * The deallocator function associated with a `delete`, `delete[]`, `new`, or
+ * `new[]` expression. For a `new` or `new[]` expression, the deallocator is the
+ * one used to free memory if the initialization throws an exception.
+ * The `form` column specifies whether the deallocation call contains a size
+ * argument, and alignment argument, or both.
+ */
+expr_deallocator(
+ unique int expr: @new_or_delete_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/**
+ * Holds if the `@conditionalexpr` is of the two operand form
+ * `guard ? : false`.
+ */
+expr_cond_two_operand(
+ unique int cond: @conditionalexpr ref
+);
+
+/**
+ * The guard of `@conditionalexpr` `guard ? true : false`
+ */
+expr_cond_guard(
+ unique int cond: @conditionalexpr ref,
+ int guard: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` holds. For the two operand form
+ * `guard ?: false` consider using `expr_cond_guard` instead.
+ */
+expr_cond_true(
+ unique int cond: @conditionalexpr ref,
+ int true: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` does not hold.
+ */
+expr_cond_false(
+ unique int cond: @conditionalexpr ref,
+ int false: @expr ref
+);
+
+/** A string representation of the value. */
+values(
+ unique int id: @value,
+ string str: string ref
+);
+
+/** The actual text in the source code for the value, if any. */
+valuetext(
+ unique int id: @value ref,
+ string text: string ref
+);
+
+valuebind(
+ int val: @value ref,
+ unique int expr: @expr ref
+);
+
+fieldoffsets(
+ unique int id: @variable ref,
+ int byteoffset: int ref,
+ int bitoffset: int ref
+);
+
+bitfield(
+ unique int id: @variable ref,
+ int bits: int ref,
+ int declared_bits: int ref
+);
+
+/* TODO
+memberprefix(
+ int member: @expr ref,
+ int prefix: @expr ref
+);
+*/
+
+/*
+ kind(1) = mbrcallexpr
+ kind(2) = mbrptrcallexpr
+ kind(3) = mbrptrmbrcallexpr
+ kind(4) = ptrmbrptrmbrcallexpr
+ kind(5) = mbrreadexpr // x.y
+ kind(6) = mbrptrreadexpr // p->y
+ kind(7) = mbrptrmbrreadexpr // x.*pm
+ kind(8) = mbrptrmbrptrreadexpr // x->*pm
+ kind(9) = staticmbrreadexpr // static x.y
+ kind(10) = staticmbrptrreadexpr // static p->y
+*/
+/* TODO
+memberaccess(
+ int member: @expr ref,
+ int kind: int ref
+);
+*/
+
+initialisers(
+ unique int init: @initialiser,
+ int var: @accessible ref,
+ unique int expr: @expr ref,
+ int location: @location_expr ref
+);
+
+braced_initialisers(
+ int init: @initialiser ref
+);
+
+/**
+ * An ancestor for the expression, for cases in which we cannot
+ * otherwise find the expression's parent.
+ */
+expr_ancestor(
+ int exp: @expr ref,
+ int ancestor: @element ref
+);
+
+exprs(
+ unique int id: @expr,
+ int kind: int ref,
+ int location: @location_expr ref
+);
+
+expr_reuse(
+ int reuse: @expr ref,
+ int original: @expr ref,
+ int value_category: int ref
+)
+
+/*
+ case @value.category of
+ 1 = prval
+ | 2 = xval
+ | 3 = lval
+ ;
+*/
+expr_types(
+ int id: @expr ref,
+ int typeid: @type ref,
+ int value_category: int ref
+);
+
+case @expr.kind of
+ 1 = @errorexpr
+| 2 = @address_of // & AddressOfExpr
+| 3 = @reference_to // ReferenceToExpr (implicit?)
+| 4 = @indirect // * PointerDereferenceExpr
+| 5 = @ref_indirect // ReferenceDereferenceExpr (implicit?)
+// ...
+| 8 = @array_to_pointer // (???)
+| 9 = @vacuous_destructor_call // VacuousDestructorCall
+// ...
+| 11 = @assume // Microsoft
+| 12 = @parexpr
+| 13 = @arithnegexpr
+| 14 = @unaryplusexpr
+| 15 = @complementexpr
+| 16 = @notexpr
+| 17 = @conjugation // GNU ~ operator
+| 18 = @realpartexpr // GNU __real
+| 19 = @imagpartexpr // GNU __imag
+| 20 = @postincrexpr
+| 21 = @postdecrexpr
+| 22 = @preincrexpr
+| 23 = @predecrexpr
+| 24 = @conditionalexpr
+| 25 = @addexpr
+| 26 = @subexpr
+| 27 = @mulexpr
+| 28 = @divexpr
+| 29 = @remexpr
+| 30 = @jmulexpr // C99 mul imaginary
+| 31 = @jdivexpr // C99 div imaginary
+| 32 = @fjaddexpr // C99 add real + imaginary
+| 33 = @jfaddexpr // C99 add imaginary + real
+| 34 = @fjsubexpr // C99 sub real - imaginary
+| 35 = @jfsubexpr // C99 sub imaginary - real
+| 36 = @paddexpr // pointer add (pointer + int or int + pointer)
+| 37 = @psubexpr // pointer sub (pointer - integer)
+| 38 = @pdiffexpr // difference between two pointers
+| 39 = @lshiftexpr
+| 40 = @rshiftexpr
+| 41 = @andexpr
+| 42 = @orexpr
+| 43 = @xorexpr
+| 44 = @eqexpr
+| 45 = @neexpr
+| 46 = @gtexpr
+| 47 = @ltexpr
+| 48 = @geexpr
+| 49 = @leexpr
+| 50 = @minexpr // GNU minimum
+| 51 = @maxexpr // GNU maximum
+| 52 = @assignexpr
+| 53 = @assignaddexpr
+| 54 = @assignsubexpr
+| 55 = @assignmulexpr
+| 56 = @assigndivexpr
+| 57 = @assignremexpr
+| 58 = @assignlshiftexpr
+| 59 = @assignrshiftexpr
+| 60 = @assignandexpr
+| 61 = @assignorexpr
+| 62 = @assignxorexpr
+| 63 = @assignpaddexpr // assign pointer add
+| 64 = @assignpsubexpr // assign pointer sub
+| 65 = @andlogicalexpr
+| 66 = @orlogicalexpr
+| 67 = @commaexpr
+| 68 = @subscriptexpr // access to member of an array, e.g., a[5]
+// ... 69 @objc_subscriptexpr deprecated
+// ... 70 @cmdaccess deprecated
+// ...
+| 73 = @virtfunptrexpr
+| 74 = @callexpr
+// ... 75 @msgexpr_normal deprecated
+// ... 76 @msgexpr_super deprecated
+// ... 77 @atselectorexpr deprecated
+// ... 78 @atprotocolexpr deprecated
+| 79 = @vastartexpr
+| 80 = @vaargexpr
+| 81 = @vaendexpr
+| 82 = @vacopyexpr
+// ... 83 @atencodeexpr deprecated
+| 84 = @varaccess
+| 85 = @thisaccess
+// ... 86 @objc_box_expr deprecated
+| 87 = @new_expr
+| 88 = @delete_expr
+| 89 = @throw_expr
+| 90 = @condition_decl // a variable declared in a condition, e.g., if(int x = y > 2)
+| 91 = @braced_init_list
+| 92 = @type_id
+| 93 = @runtime_sizeof
+| 94 = @runtime_alignof
+| 95 = @sizeof_pack
+| 96 = @expr_stmt // GNU extension
+| 97 = @routineexpr
+| 98 = @type_operand // used to access a type in certain contexts (haven't found any examples yet....)
+| 99 = @offsetofexpr // offsetof ::= type and field
+| 100 = @hasassignexpr // __has_assign ::= type
+| 101 = @hascopyexpr // __has_copy ::= type
+| 102 = @hasnothrowassign // __has_nothrow_assign ::= type
+| 103 = @hasnothrowconstr // __has_nothrow_constructor ::= type
+| 104 = @hasnothrowcopy // __has_nothrow_copy ::= type
+| 105 = @hastrivialassign // __has_trivial_assign ::= type
+| 106 = @hastrivialconstr // __has_trivial_constructor ::= type
+| 107 = @hastrivialcopy // __has_trivial_copy ::= type
+| 108 = @hasuserdestr // __has_user_destructor ::= type
+| 109 = @hasvirtualdestr // __has_virtual_destructor ::= type
+| 110 = @isabstractexpr // __is_abstract ::= type
+| 111 = @isbaseofexpr // __is_base_of ::= type type
+| 112 = @isclassexpr // __is_class ::= type
+| 113 = @isconvtoexpr // __is_convertible_to ::= type type
+| 114 = @isemptyexpr // __is_empty ::= type
+| 115 = @isenumexpr // __is_enum ::= type
+| 116 = @ispodexpr // __is_pod ::= type
+| 117 = @ispolyexpr // __is_polymorphic ::= type
+| 118 = @isunionexpr // __is_union ::= type
+| 119 = @typescompexpr // GNU __builtin_types_compatible ::= type type
+| 120 = @intaddrexpr // frontend internal builtin, used to implement offsetof
+// ...
+| 122 = @hastrivialdestructor // __has_trivial_destructor ::= type
+| 123 = @literal
+| 124 = @uuidof
+| 127 = @aggregateliteral
+| 128 = @delete_array_expr
+| 129 = @new_array_expr
+// ... 130 @objc_array_literal deprecated
+// ... 131 @objc_dictionary_literal deprecated
+| 132 = @foldexpr
+// ...
+| 200 = @ctordirectinit
+| 201 = @ctorvirtualinit
+| 202 = @ctorfieldinit
+| 203 = @ctordelegatinginit
+| 204 = @dtordirectdestruct
+| 205 = @dtorvirtualdestruct
+| 206 = @dtorfielddestruct
+// ...
+| 210 = @static_cast
+| 211 = @reinterpret_cast
+| 212 = @const_cast
+| 213 = @dynamic_cast
+| 214 = @c_style_cast
+| 215 = @lambdaexpr
+| 216 = @param_ref
+| 217 = @noopexpr
+// ...
+| 294 = @istriviallyconstructibleexpr
+| 295 = @isdestructibleexpr
+| 296 = @isnothrowdestructibleexpr
+| 297 = @istriviallydestructibleexpr
+| 298 = @istriviallyassignableexpr
+| 299 = @isnothrowassignableexpr
+| 300 = @istrivialexpr
+| 301 = @isstandardlayoutexpr
+| 302 = @istriviallycopyableexpr
+| 303 = @isliteraltypeexpr
+| 304 = @hastrivialmoveconstructorexpr
+| 305 = @hastrivialmoveassignexpr
+| 306 = @hasnothrowmoveassignexpr
+| 307 = @isconstructibleexpr
+| 308 = @isnothrowconstructibleexpr
+| 309 = @hasfinalizerexpr
+| 310 = @isdelegateexpr
+| 311 = @isinterfaceclassexpr
+| 312 = @isrefarrayexpr
+| 313 = @isrefclassexpr
+| 314 = @issealedexpr
+| 315 = @issimplevalueclassexpr
+| 316 = @isvalueclassexpr
+| 317 = @isfinalexpr
+| 319 = @noexceptexpr
+| 320 = @builtinshufflevector
+| 321 = @builtinchooseexpr
+| 322 = @builtinaddressof
+| 323 = @vec_fill
+| 324 = @builtinconvertvector
+| 325 = @builtincomplex
+| 326 = @spaceshipexpr
+| 327 = @co_await
+| 328 = @co_yield
+| 329 = @temp_init
+| 330 = @isassignable
+| 331 = @isaggregate
+| 332 = @hasuniqueobjectrepresentations
+| 333 = @builtinbitcast
+| 334 = @builtinshuffle
+| 335 = @blockassignexpr
+| 336 = @issame
+| 337 = @isfunction
+| 338 = @islayoutcompatible
+| 339 = @ispointerinterconvertiblebaseof
+| 340 = @isarray
+| 341 = @arrayrank
+| 342 = @arrayextent
+| 343 = @isarithmetic
+| 344 = @iscompletetype
+| 345 = @iscompound
+| 346 = @isconst
+| 347 = @isfloatingpoint
+| 348 = @isfundamental
+| 349 = @isintegral
+| 350 = @islvaluereference
+| 351 = @ismemberfunctionpointer
+| 352 = @ismemberobjectpointer
+| 353 = @ismemberpointer
+| 354 = @isobject
+| 355 = @ispointer
+| 356 = @isreference
+| 357 = @isrvaluereference
+| 358 = @isscalar
+| 359 = @issigned
+| 360 = @isunsigned
+| 361 = @isvoid
+| 362 = @isvolatile
+| 363 = @reuseexpr
+| 364 = @istriviallycopyassignable
+| 365 = @isassignablenopreconditioncheck
+| 366 = @referencebindstotemporary
+| 367 = @issameas
+| 368 = @builtinhasattribute
+| 369 = @ispointerinterconvertiblewithclass
+| 370 = @builtinispointerinterconvertiblewithclass
+| 371 = @iscorrespondingmember
+| 372 = @builtiniscorrespondingmember
+| 373 = @isboundedarray
+| 374 = @isunboundedarray
+| 375 = @isreferenceable
+| 378 = @isnothrowconvertible
+| 379 = @referenceconstructsfromtemporary
+| 380 = @referenceconvertsfromtemporary
+| 381 = @isconvertible
+| 382 = @isvalidwinrttype
+| 383 = @iswinclass
+| 384 = @iswininterface
+| 385 = @istriviallyequalitycomparable
+| 386 = @isscopedenum
+| 387 = @istriviallyrelocatable
+| 388 = @datasizeof
+| 389 = @c11_generic
+;
+
+@var_args_expr = @vastartexpr
+ | @vaendexpr
+ | @vaargexpr
+ | @vacopyexpr
+ ;
+
+@builtin_op = @var_args_expr
+ | @noopexpr
+ | @offsetofexpr
+ | @intaddrexpr
+ | @hasassignexpr
+ | @hascopyexpr
+ | @hasnothrowassign
+ | @hasnothrowconstr
+ | @hasnothrowcopy
+ | @hastrivialassign
+ | @hastrivialconstr
+ | @hastrivialcopy
+ | @hastrivialdestructor
+ | @hasuserdestr
+ | @hasvirtualdestr
+ | @isabstractexpr
+ | @isbaseofexpr
+ | @isclassexpr
+ | @isconvtoexpr
+ | @isemptyexpr
+ | @isenumexpr
+ | @ispodexpr
+ | @ispolyexpr
+ | @isunionexpr
+ | @typescompexpr
+ | @builtinshufflevector
+ | @builtinconvertvector
+ | @builtinaddressof
+ | @istriviallyconstructibleexpr
+ | @isdestructibleexpr
+ | @isnothrowdestructibleexpr
+ | @istriviallydestructibleexpr
+ | @istriviallyassignableexpr
+ | @isnothrowassignableexpr
+ | @istrivialexpr
+ | @isstandardlayoutexpr
+ | @istriviallycopyableexpr
+ | @isliteraltypeexpr
+ | @hastrivialmoveconstructorexpr
+ | @hastrivialmoveassignexpr
+ | @hasnothrowmoveassignexpr
+ | @isconstructibleexpr
+ | @isnothrowconstructibleexpr
+ | @hasfinalizerexpr
+ | @isdelegateexpr
+ | @isinterfaceclassexpr
+ | @isrefarrayexpr
+ | @isrefclassexpr
+ | @issealedexpr
+ | @issimplevalueclassexpr
+ | @isvalueclassexpr
+ | @isfinalexpr
+ | @builtinchooseexpr
+ | @builtincomplex
+ | @isassignable
+ | @isaggregate
+ | @hasuniqueobjectrepresentations
+ | @builtinbitcast
+ | @builtinshuffle
+ | @issame
+ | @isfunction
+ | @islayoutcompatible
+ | @ispointerinterconvertiblebaseof
+ | @isarray
+ | @arrayrank
+ | @arrayextent
+ | @isarithmetic
+ | @iscompletetype
+ | @iscompound
+ | @isconst
+ | @isfloatingpoint
+ | @isfundamental
+ | @isintegral
+ | @islvaluereference
+ | @ismemberfunctionpointer
+ | @ismemberobjectpointer
+ | @ismemberpointer
+ | @isobject
+ | @ispointer
+ | @isreference
+ | @isrvaluereference
+ | @isscalar
+ | @issigned
+ | @isunsigned
+ | @isvoid
+ | @isvolatile
+ | @istriviallycopyassignable
+ | @isassignablenopreconditioncheck
+ | @referencebindstotemporary
+ | @issameas
+ | @builtinhasattribute
+ | @ispointerinterconvertiblewithclass
+ | @builtinispointerinterconvertiblewithclass
+ | @iscorrespondingmember
+ | @builtiniscorrespondingmember
+ | @isboundedarray
+ | @isunboundedarray
+ | @isreferenceable
+ | @isnothrowconvertible
+ | @referenceconstructsfromtemporary
+ | @referenceconvertsfromtemporary
+ | @isconvertible
+ | @isvalidwinrttype
+ | @iswinclass
+ | @iswininterface
+ | @istriviallyequalitycomparable
+ | @isscopedenum
+ | @istriviallyrelocatable
+ ;
+
+new_allocated_type(
+ unique int expr: @new_expr ref,
+ int type_id: @type ref
+);
+
+new_array_allocated_type(
+ unique int expr: @new_array_expr ref,
+ int type_id: @type ref
+);
+
+/**
+ * The field being initialized by an initializer expression within an aggregate
+ * initializer for a class/struct/union. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_field_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int field: @membervariable ref,
+ int position: int ref
+);
+
+/**
+ * The index of the element being initialized by an initializer expression
+ * within an aggregate initializer for an array. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_array_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int element_index: int ref,
+ int position: int ref
+);
+
+@ctorinit = @ctordirectinit
+ | @ctorvirtualinit
+ | @ctorfieldinit
+ | @ctordelegatinginit;
+@dtordestruct = @dtordirectdestruct
+ | @dtorvirtualdestruct
+ | @dtorfielddestruct;
+
+
+condition_decl_bind(
+ unique int expr: @condition_decl ref,
+ unique int decl: @declaration ref
+);
+
+typeid_bind(
+ unique int expr: @type_id ref,
+ int type_id: @type ref
+);
+
+uuidof_bind(
+ unique int expr: @uuidof ref,
+ int type_id: @type ref
+);
+
+@runtime_sizeof_or_alignof = @runtime_sizeof | @runtime_alignof | @datasizeof;
+
+sizeof_bind(
+ unique int expr: @runtime_sizeof_or_alignof ref,
+ int type_id: @type ref
+);
+
+code_block(
+ unique int block: @literal ref,
+ unique int routine: @function ref
+);
+
+lambdas(
+ unique int expr: @lambdaexpr ref,
+ string default_capture: string ref,
+ boolean has_explicit_return_type: boolean ref
+);
+
+lambda_capture(
+ unique int id: @lambdacapture,
+ int lambda: @lambdaexpr ref,
+ int index: int ref,
+ int field: @membervariable ref,
+ boolean captured_by_reference: boolean ref,
+ boolean is_implicit: boolean ref,
+ int location: @location_default ref
+);
+
+@funbindexpr = @routineexpr
+ | @new_expr
+ | @delete_expr
+ | @delete_array_expr
+ | @ctordirectinit
+ | @ctorvirtualinit
+ | @ctordelegatinginit
+ | @dtordirectdestruct
+ | @dtorvirtualdestruct;
+
+@varbindexpr = @varaccess | @ctorfieldinit | @dtorfielddestruct;
+@addressable = @function | @variable ;
+@accessible = @addressable | @enumconstant ;
+
+@access = @varaccess | @routineexpr ;
+
+fold(
+ int expr: @foldexpr ref,
+ string operator: string ref,
+ boolean is_left_fold: boolean ref
+);
+
+stmts(
+ unique int id: @stmt,
+ int kind: int ref,
+ int location: @location_stmt ref
+);
+
+case @stmt.kind of
+ 1 = @stmt_expr
+| 2 = @stmt_if
+| 3 = @stmt_while
+| 4 = @stmt_goto
+| 5 = @stmt_label
+| 6 = @stmt_return
+| 7 = @stmt_block
+| 8 = @stmt_end_test_while // do { ... } while ( ... )
+| 9 = @stmt_for
+| 10 = @stmt_switch_case
+| 11 = @stmt_switch
+| 13 = @stmt_asm // "asm" statement or the body of an asm function
+| 15 = @stmt_try_block
+| 16 = @stmt_microsoft_try // Microsoft
+| 17 = @stmt_decl
+| 18 = @stmt_set_vla_size // C99
+| 19 = @stmt_vla_decl // C99
+| 25 = @stmt_assigned_goto // GNU
+| 26 = @stmt_empty
+| 27 = @stmt_continue
+| 28 = @stmt_break
+| 29 = @stmt_range_based_for // C++11
+// ... 30 @stmt_at_autoreleasepool_block deprecated
+// ... 31 @stmt_objc_for_in deprecated
+// ... 32 @stmt_at_synchronized deprecated
+| 33 = @stmt_handler
+// ... 34 @stmt_finally_end deprecated
+| 35 = @stmt_constexpr_if
+| 37 = @stmt_co_return
+;
+
+type_vla(
+ int type_id: @type ref,
+ int decl: @stmt_vla_decl ref
+);
+
+variable_vla(
+ int var: @variable ref,
+ int decl: @stmt_vla_decl ref
+);
+
+if_initialization(
+ unique int if_stmt: @stmt_if ref,
+ int init_id: @stmt ref
+);
+
+if_then(
+ unique int if_stmt: @stmt_if ref,
+ int then_id: @stmt ref
+);
+
+if_else(
+ unique int if_stmt: @stmt_if ref,
+ int else_id: @stmt ref
+);
+
+constexpr_if_initialization(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int init_id: @stmt ref
+);
+
+constexpr_if_then(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int then_id: @stmt ref
+);
+
+constexpr_if_else(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int else_id: @stmt ref
+);
+
+while_body(
+ unique int while_stmt: @stmt_while ref,
+ int body_id: @stmt ref
+);
+
+do_body(
+ unique int do_stmt: @stmt_end_test_while ref,
+ int body_id: @stmt ref
+);
+
+switch_initialization(
+ unique int switch_stmt: @stmt_switch ref,
+ int init_id: @stmt ref
+);
+
+#keyset[switch_stmt, index]
+switch_case(
+ int switch_stmt: @stmt_switch ref,
+ int index: int ref,
+ int case_id: @stmt_switch_case ref
+);
+
+switch_body(
+ unique int switch_stmt: @stmt_switch ref,
+ int body_id: @stmt ref
+);
+
+@stmt_for_or_range_based_for = @stmt_for
+ | @stmt_range_based_for;
+
+for_initialization(
+ unique int for_stmt: @stmt_for_or_range_based_for ref,
+ int init_id: @stmt ref
+);
+
+for_condition(
+ unique int for_stmt: @stmt_for ref,
+ int condition_id: @expr ref
+);
+
+for_update(
+ unique int for_stmt: @stmt_for ref,
+ int update_id: @expr ref
+);
+
+for_body(
+ unique int for_stmt: @stmt_for ref,
+ int body_id: @stmt ref
+);
+
+@stmtparent = @stmt | @expr_stmt ;
+stmtparents(
+ unique int id: @stmt ref,
+ int index: int ref,
+ int parent: @stmtparent ref
+);
+
+ishandler(unique int block: @stmt_block ref);
+
+@cfgnode = @stmt | @expr | @function | @initialiser ;
+
+stmt_decl_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl: @declaration ref
+);
+
+stmt_decl_entry_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl_entry: @element ref
+);
+
+@functionorblock = @function | @stmt_block;
+
+blockscope(
+ unique int block: @stmt_block ref,
+ int enclosing: @functionorblock ref
+);
+
+@jump = @stmt_goto | @stmt_break | @stmt_continue;
+
+@jumporlabel = @jump | @stmt_label | @literal;
+
+jumpinfo(
+ unique int id: @jumporlabel ref,
+ string str: string ref,
+ int target: @stmt ref
+);
+
+preprocdirects(
+ unique int id: @preprocdirect,
+ int kind: int ref,
+ int location: @location_default ref
+);
+case @preprocdirect.kind of
+ 0 = @ppd_if
+| 1 = @ppd_ifdef
+| 2 = @ppd_ifndef
+| 3 = @ppd_elif
+| 4 = @ppd_else
+| 5 = @ppd_endif
+| 6 = @ppd_plain_include
+| 7 = @ppd_define
+| 8 = @ppd_undef
+| 9 = @ppd_line
+| 10 = @ppd_error
+| 11 = @ppd_pragma
+| 12 = @ppd_objc_import
+| 13 = @ppd_include_next
+| 18 = @ppd_warning
+;
+
+@ppd_include = @ppd_plain_include | @ppd_objc_import | @ppd_include_next;
+
+@ppd_branch = @ppd_if | @ppd_ifdef | @ppd_ifndef | @ppd_elif;
+
+preprocpair(
+ int begin : @ppd_branch ref,
+ int elseelifend : @preprocdirect ref
+);
+
+preproctrue(int branch : @ppd_branch ref);
+preprocfalse(int branch : @ppd_branch ref);
+
+preproctext(
+ unique int id: @preprocdirect ref,
+ string head: string ref,
+ string body: string ref
+);
+
+includes(
+ unique int id: @ppd_include ref,
+ int included: @file ref
+);
+
+link_targets(
+ int id: @link_target,
+ int binary: @file ref
+);
+
+link_parent(
+ int element : @element ref,
+ int link_target : @link_target ref
+);
+
+/* XML Files */
+
+xmlEncoding(unique int id: @file ref, string encoding: string ref);
+
+xmlDTDs(
+ unique int id: @xmldtd,
+ string root: string ref,
+ string publicId: string ref,
+ string systemId: string ref,
+ int fileid: @file ref
+);
+
+xmlElements(
+ unique int id: @xmlelement,
+ string name: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlAttrs(
+ unique int id: @xmlattribute,
+ int elementid: @xmlelement ref,
+ string name: string ref,
+ string value: string ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlNs(
+ int id: @xmlnamespace,
+ string prefixName: string ref,
+ string URI: string ref,
+ int fileid: @file ref
+);
+
+xmlHasNs(
+ int elementId: @xmlnamespaceable ref,
+ int nsId: @xmlnamespace ref,
+ int fileid: @file ref
+);
+
+xmlComments(
+ unique int id: @xmlcomment,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int fileid: @file ref
+);
+
+xmlChars(
+ unique int id: @xmlcharacters,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int isCDATA: int ref,
+ int fileid: @file ref
+);
+
+@xmlparent = @file | @xmlelement;
+@xmlnamespaceable = @xmlelement | @xmlattribute;
+
+xmllocations(
+ int xmlElement: @xmllocatable ref,
+ int location: @location_default ref
+);
+
+@xmllocatable = @xmlcharacters
+ | @xmlelement
+ | @xmlcomment
+ | @xmlattribute
+ | @xmldtd
+ | @file
+ | @xmlnamespace;
diff --git a/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/semmlecode.cpp.dbscheme b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/semmlecode.cpp.dbscheme
new file mode 100644
index 000000000000..7ff6a6e53dbc
--- /dev/null
+++ b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/semmlecode.cpp.dbscheme
@@ -0,0 +1,2315 @@
+
+/**
+ * An invocation of the compiler. Note that more than one file may be
+ * compiled per invocation. For example, this command compiles three
+ * source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * The `id` simply identifies the invocation, while `cwd` is the working
+ * directory from which the compiler was invoked.
+ */
+compilations(
+ /**
+ * An invocation of the compiler. Note that more than one file may
+ * be compiled per invocation. For example, this command compiles
+ * three source files:
+ *
+ * gcc -c f1.c f2.c f3.c
+ */
+ unique int id : @compilation,
+ string cwd : string ref
+);
+
+/**
+ * The arguments that were passed to the extractor for a compiler
+ * invocation. If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then typically there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | *path to extractor*
+ * 1 | `--mimic`
+ * 2 | `/usr/bin/gcc`
+ * 3 | `-c`
+ * 4 | f1.c
+ * 5 | f2.c
+ * 6 | f3.c
+ */
+#keyset[id, num]
+compilation_args(
+ int id : @compilation ref,
+ int num : int ref,
+ string arg : string ref
+);
+
+/**
+ * The source files that are compiled by a compiler invocation.
+ * If `id` is for the compiler invocation
+ *
+ * gcc -c f1.c f2.c f3.c
+ *
+ * then there will be rows for
+ *
+ * num | arg
+ * --- | ---
+ * 0 | f1.c
+ * 1 | f2.c
+ * 2 | f3.c
+ *
+ * Note that even if those files `#include` headers, those headers
+ * do not appear as rows.
+ */
+#keyset[id, num]
+compilation_compiling_files(
+ int id : @compilation ref,
+ int num : int ref,
+ int file : @file ref
+);
+
+/**
+ * The time taken by the extractor for a compiler invocation.
+ *
+ * For each file `num`, there will be rows for
+ *
+ * kind | seconds
+ * ---- | ---
+ * 1 | CPU seconds used by the extractor frontend
+ * 2 | Elapsed seconds during the extractor frontend
+ * 3 | CPU seconds used by the extractor backend
+ * 4 | Elapsed seconds during the extractor backend
+ */
+#keyset[id, num, kind]
+compilation_time(
+ int id : @compilation ref,
+ int num : int ref,
+ /* kind:
+ 1 = frontend_cpu_seconds
+ 2 = frontend_elapsed_seconds
+ 3 = extractor_cpu_seconds
+ 4 = extractor_elapsed_seconds
+ */
+ int kind : int ref,
+ float seconds : float ref
+);
+
+/**
+ * An error or warning generated by the extractor.
+ * The diagnostic message `diagnostic` was generated during compiler
+ * invocation `compilation`, and is the `file_number_diagnostic_number`th
+ * message generated while extracting the `file_number`th file of that
+ * invocation.
+ */
+#keyset[compilation, file_number, file_number_diagnostic_number]
+diagnostic_for(
+ int diagnostic : @diagnostic ref,
+ int compilation : @compilation ref,
+ int file_number : int ref,
+ int file_number_diagnostic_number : int ref
+);
+
+/**
+ * If extraction was successful, then `cpu_seconds` and
+ * `elapsed_seconds` are the CPU time and elapsed time (respectively)
+ * that extraction took for compiler invocation `id`.
+ */
+compilation_finished(
+ unique int id : @compilation ref,
+ float cpu_seconds : float ref,
+ float elapsed_seconds : float ref
+);
+
+
+/**
+ * External data, loaded from CSV files during snapshot creation. See
+ * [Tutorial: Incorporating external data](https://help.semmle.com/wiki/display/SD/Tutorial%3A+Incorporating+external+data)
+ * for more information.
+ */
+externalData(
+ int id : @externalDataElement,
+ string path : string ref,
+ int column: int ref,
+ string value : string ref
+);
+
+/**
+ * The source location of the snapshot.
+ */
+sourceLocationPrefix(string prefix : string ref);
+
+/**
+ * Information about packages that provide code used during compilation.
+ * The `id` is just a unique identifier.
+ * The `namespace` is typically the name of the package manager that
+ * provided the package (e.g. "dpkg" or "yum").
+ * The `package_name` is the name of the package, and `version` is its
+ * version (as a string).
+ */
+external_packages(
+ unique int id: @external_package,
+ string namespace : string ref,
+ string package_name : string ref,
+ string version : string ref
+);
+
+/**
+ * Holds if File `fileid` was provided by package `package`.
+ */
+header_to_external_package(
+ int fileid : @file ref,
+ int package : @external_package ref
+);
+
+/*
+ * Version history
+ */
+
+svnentries(
+ unique int id : @svnentry,
+ string revision : string ref,
+ string author : string ref,
+ date revisionDate : date ref,
+ int changeSize : int ref
+)
+
+svnaffectedfiles(
+ int id : @svnentry ref,
+ int file : @file ref,
+ string action : string ref
+)
+
+svnentrymsg(
+ unique int id : @svnentry ref,
+ string message : string ref
+)
+
+svnchurn(
+ int commit : @svnentry ref,
+ int file : @file ref,
+ int addedLines : int ref,
+ int deletedLines : int ref
+)
+
+/*
+ * C++ dbscheme
+ */
+
+extractor_version(
+ string codeql_version: string ref,
+ string frontend_version: string ref
+)
+
+@location = @location_stmt | @location_expr | @location_default ;
+
+/**
+ * The location of an element that is not an expression or a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_default(
+ /** The location of an element that is not an expression or a statement. */
+ unique int id: @location_default,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of a statement.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_stmt(
+ /** The location of a statement. */
+ unique int id: @location_stmt,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/**
+ * The location of an expression.
+ * The location spans column `startcolumn` of line `startline` to
+ * column `endcolumn` of line `endline` in file `file`.
+ * For more information, see
+ * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
+ */
+locations_expr(
+ /** The location of an expression. */
+ unique int id: @location_expr,
+ int container: @container ref,
+ int startLine: int ref,
+ int startColumn: int ref,
+ int endLine: int ref,
+ int endColumn: int ref
+);
+
+/** An element for which line-count information is available. */
+@sourceline = @file | @function | @variable | @enumconstant | @xmllocatable;
+
+numlines(
+ int element_id: @sourceline ref,
+ int num_lines: int ref,
+ int num_code: int ref,
+ int num_comment: int ref
+);
+
+diagnostics(
+ unique int id: @diagnostic,
+ int severity: int ref,
+ string error_tag: string ref,
+ string error_message: string ref,
+ string full_error_message: string ref,
+ int location: @location_default ref
+);
+
+files(
+ unique int id: @file,
+ string name: string ref
+);
+
+folders(
+ unique int id: @folder,
+ string name: string ref
+);
+
+@container = @folder | @file
+
+containerparent(
+ int parent: @container ref,
+ unique int child: @container ref
+);
+
+fileannotations(
+ int id: @file ref,
+ int kind: int ref,
+ string name: string ref,
+ string value: string ref
+);
+
+inmacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+affectedbymacroexpansion(
+ int id: @element ref,
+ int inv: @macroinvocation ref
+);
+
+case @macroinvocation.kind of
+ 1 = @macro_expansion
+| 2 = @other_macro_reference
+;
+
+macroinvocations(
+ unique int id: @macroinvocation,
+ int macro_id: @ppd_define ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+macroparent(
+ unique int id: @macroinvocation ref,
+ int parent_id: @macroinvocation ref
+);
+
+// a macroinvocation may be part of another location
+// the way to find a constant expression that uses a macro
+// is thus to find a constant expression that has a location
+// to which a macro invocation is bound
+macrolocationbind(
+ int id: @macroinvocation ref,
+ int location: @location ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_unexpanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+#keyset[invocation, argument_index]
+macro_argument_expanded(
+ int invocation: @macroinvocation ref,
+ int argument_index: int ref,
+ string text: string ref
+);
+
+/*
+case @function.kind of
+ 1 = @normal_function
+| 2 = @constructor
+| 3 = @destructor
+| 4 = @conversion_function
+| 5 = @operator
+| 6 = @builtin_function // GCC built-in functions, e.g. __builtin___memcpy_chk
+| 7 = @user_defined_literal
+| 8 = @deduction_guide
+;
+*/
+
+functions(
+ unique int id: @function,
+ string name: string ref,
+ int kind: int ref
+);
+
+function_entry_point(
+ int id: @function ref,
+ unique int entry_point: @stmt ref
+);
+
+function_return_type(
+ int id: @function ref,
+ int return_type: @type ref
+);
+
+/**
+ * If `function` is a coroutine, then this gives the `std::experimental::resumable_traits`
+ * instance associated with it, and the variables representing the `handle` and `promise`
+ * for it.
+ */
+coroutine(
+ unique int function: @function ref,
+ int traits: @type ref
+);
+
+/*
+case @coroutine_placeholder_variable.kind of
+ 1 = @handle
+| 2 = @promise
+| 3 = @init_await_resume
+;
+*/
+
+coroutine_placeholder_variable(
+ unique int placeholder_variable: @variable ref,
+ int kind: int ref,
+ int function: @function ref
+)
+
+/** The `new` function used for allocating the coroutine state, if any. */
+coroutine_new(
+ unique int function: @function ref,
+ int new: @function ref
+);
+
+/** The `delete` function used for deallocating the coroutine state, if any. */
+coroutine_delete(
+ unique int function: @function ref,
+ int delete: @function ref
+);
+
+purefunctions(unique int id: @function ref);
+
+function_deleted(unique int id: @function ref);
+
+function_defaulted(unique int id: @function ref);
+
+function_prototyped(unique int id: @function ref)
+
+deduction_guide_for_class(
+ int id: @function ref,
+ int class_template: @usertype ref
+)
+
+member_function_this_type(
+ unique int id: @function ref,
+ int this_type: @type ref
+);
+
+#keyset[id, type_id]
+fun_decls(
+ int id: @fun_decl,
+ int function: @function ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+fun_def(unique int id: @fun_decl ref);
+fun_specialized(unique int id: @fun_decl ref);
+fun_implicit(unique int id: @fun_decl ref);
+fun_decl_specifiers(
+ int id: @fun_decl ref,
+ string name: string ref
+)
+#keyset[fun_decl, index]
+fun_decl_throws(
+ int fun_decl: @fun_decl ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+/* an empty throw specification is different from none */
+fun_decl_empty_throws(unique int fun_decl: @fun_decl ref);
+fun_decl_noexcept(
+ int fun_decl: @fun_decl ref,
+ int constant: @expr ref
+);
+fun_decl_empty_noexcept(int fun_decl: @fun_decl ref);
+fun_decl_typedef_type(
+ unique int fun_decl: @fun_decl ref,
+ int typedeftype_id: @usertype ref
+);
+
+param_decl_bind(
+ unique int id: @var_decl ref,
+ int index: int ref,
+ int fun_decl: @fun_decl ref
+);
+
+#keyset[id, type_id]
+var_decls(
+ int id: @var_decl,
+ int variable: @variable ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+var_def(unique int id: @var_decl ref);
+var_decl_specifiers(
+ int id: @var_decl ref,
+ string name: string ref
+)
+is_structured_binding(unique int id: @variable ref);
+
+type_decls(
+ unique int id: @type_decl,
+ int type_id: @type ref,
+ int location: @location_default ref
+);
+type_def(unique int id: @type_decl ref);
+type_decl_top(
+ unique int type_decl: @type_decl ref
+);
+
+namespace_decls(
+ unique int id: @namespace_decl,
+ int namespace_id: @namespace ref,
+ int location: @location_default ref,
+ int bodylocation: @location_default ref
+);
+
+case @using.kind of
+ 1 = @using_declaration
+| 2 = @using_directive
+| 3 = @using_enum_declaration
+;
+
+usings(
+ unique int id: @using,
+ int element_id: @element ref,
+ int location: @location_default ref,
+ int kind: int ref
+);
+
+/** The element which contains the `using` declaration. */
+using_container(
+ int parent: @element ref,
+ int child: @using ref
+);
+
+static_asserts(
+ unique int id: @static_assert,
+ int condition : @expr ref,
+ string message : string ref,
+ int location: @location_default ref,
+ int enclosing : @element ref
+);
+
+// each function has an ordered list of parameters
+#keyset[id, type_id]
+#keyset[function, index, type_id]
+params(
+ int id: @parameter,
+ int function: @functionorblock ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+overrides(
+ int new: @function ref,
+ int old: @function ref
+);
+
+#keyset[id, type_id]
+membervariables(
+ int id: @membervariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+globalvariables(
+ int id: @globalvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+#keyset[id, type_id]
+localvariables(
+ int id: @localvariable,
+ int type_id: @type ref,
+ string name: string ref
+);
+
+autoderivation(
+ unique int var: @variable ref,
+ int derivation_type: @type ref
+);
+
+orphaned_variables(
+ int var: @localvariable ref,
+ int function: @function ref
+)
+
+enumconstants(
+ unique int id: @enumconstant,
+ int parent: @usertype ref,
+ int index: int ref,
+ int type_id: @type ref,
+ string name: string ref,
+ int location: @location_default ref
+);
+
+@variable = @localscopevariable | @globalvariable | @membervariable;
+
+@localscopevariable = @localvariable | @parameter;
+
+/**
+ * Built-in types are the fundamental types, e.g., integral, floating, and void.
+ */
+case @builtintype.kind of
+ 1 = @errortype
+| 2 = @unknowntype
+| 3 = @void
+| 4 = @boolean
+| 5 = @char
+| 6 = @unsigned_char
+| 7 = @signed_char
+| 8 = @short
+| 9 = @unsigned_short
+| 10 = @signed_short
+| 11 = @int
+| 12 = @unsigned_int
+| 13 = @signed_int
+| 14 = @long
+| 15 = @unsigned_long
+| 16 = @signed_long
+| 17 = @long_long
+| 18 = @unsigned_long_long
+| 19 = @signed_long_long
+// ... 20 Microsoft-specific __int8
+// ... 21 Microsoft-specific __int16
+// ... 22 Microsoft-specific __int32
+// ... 23 Microsoft-specific __int64
+| 24 = @float
+| 25 = @double
+| 26 = @long_double
+| 27 = @complex_float // C99-specific _Complex float
+| 28 = @complex_double // C99-specific _Complex double
+| 29 = @complex_long_double // C99-specific _Complex long double
+| 30 = @imaginary_float // C99-specific _Imaginary float
+| 31 = @imaginary_double // C99-specific _Imaginary double
+| 32 = @imaginary_long_double // C99-specific _Imaginary long double
+| 33 = @wchar_t // Microsoft-specific
+| 34 = @decltype_nullptr // C++11
+| 35 = @int128 // __int128
+| 36 = @unsigned_int128 // unsigned __int128
+| 37 = @signed_int128 // signed __int128
+| 38 = @float128 // __float128
+| 39 = @complex_float128 // _Complex __float128
+| 40 = @decimal32 // _Decimal32
+| 41 = @decimal64 // _Decimal64
+| 42 = @decimal128 // _Decimal128
+| 43 = @char16_t
+| 44 = @char32_t
+| 45 = @std_float32 // _Float32
+| 46 = @float32x // _Float32x
+| 47 = @std_float64 // _Float64
+| 48 = @float64x // _Float64x
+| 49 = @std_float128 // _Float128
+// ... 50 _Float128x
+| 51 = @char8_t
+| 52 = @float16 // _Float16
+| 53 = @complex_float16 // _Complex _Float16
+| 54 = @fp16 // __fp16
+| 55 = @std_bfloat16 // __bf16
+| 56 = @std_float16 // std::float16_t
+| 57 = @complex_std_float32 // _Complex _Float32
+| 58 = @complex_float32x // _Complex _Float32x
+| 59 = @complex_std_float64 // _Complex _Float64
+| 60 = @complex_float64x // _Complex _Float64x
+| 61 = @complex_std_float128 // _Complex _Float128
+;
+
+builtintypes(
+ unique int id: @builtintype,
+ string name: string ref,
+ int kind: int ref,
+ int size: int ref,
+ int sign: int ref,
+ int alignment: int ref
+);
+
+/**
+ * Derived types are types that are directly derived from existing types and
+ * point to, refer to, transform type data to return a new type.
+ */
+case @derivedtype.kind of
+ 1 = @pointer
+| 2 = @reference
+| 3 = @type_with_specifiers
+| 4 = @array
+| 5 = @gnu_vector
+| 6 = @routineptr
+| 7 = @routinereference
+| 8 = @rvalue_reference // C++11
+// ... 9 type_conforming_to_protocols deprecated
+| 10 = @block
+;
+
+derivedtypes(
+ unique int id: @derivedtype,
+ string name: string ref,
+ int kind: int ref,
+ int type_id: @type ref
+);
+
+pointerishsize(unique int id: @derivedtype ref,
+ int size: int ref,
+ int alignment: int ref);
+
+arraysizes(
+ unique int id: @derivedtype ref,
+ int num_elements: int ref,
+ int bytesize: int ref,
+ int alignment: int ref
+);
+
+typedefbase(
+ unique int id: @usertype ref,
+ int type_id: @type ref
+);
+
+/**
+ * An instance of the C++11 `decltype` operator. For example:
+ * ```
+ * int a;
+ * decltype(1+a) b;
+ * ```
+ * Here `expr` is `1+a`.
+ *
+ * Sometimes an additional pair of parentheses around the expression
+ * would change the semantics of this decltype, e.g.
+ * ```
+ * struct A { double x; };
+ * const A* a = new A();
+ * decltype( a->x ); // type is double
+ * decltype((a->x)); // type is const double&
+ * ```
+ * (Please consult the C++11 standard for more details).
+ * `parentheses_would_change_meaning` is `true` iff that is the case.
+ */
+#keyset[id, expr]
+decltypes(
+ int id: @decltype,
+ int expr: @expr ref,
+ int base_type: @type ref,
+ boolean parentheses_would_change_meaning: boolean ref
+);
+
+/*
+case @usertype.kind of
+ 1 = @struct
+| 2 = @class
+| 3 = @union
+| 4 = @enum
+| 5 = @typedef // classic C: typedef typedef type name
+| 6 = @template
+| 7 = @template_parameter
+| 8 = @template_template_parameter
+| 9 = @proxy_class // a proxy class associated with a template parameter
+// ... 10 objc_class deprecated
+// ... 11 objc_protocol deprecated
+// ... 12 objc_category deprecated
+| 13 = @scoped_enum
+| 14 = @using_alias // a using name = type style typedef
+;
+*/
+
+usertypes(
+ unique int id: @usertype,
+ string name: string ref,
+ int kind: int ref
+);
+
+usertypesize(
+ unique int id: @usertype ref,
+ int size: int ref,
+ int alignment: int ref
+);
+
+usertype_final(unique int id: @usertype ref);
+
+usertype_uuid(
+ unique int id: @usertype ref,
+ string uuid: string ref
+);
+
+mangled_name(
+ unique int id: @declaration ref,
+ int mangled_name : @mangledname,
+ boolean is_complete: boolean ref
+);
+
+is_pod_class(unique int id: @usertype ref);
+is_standard_layout_class(unique int id: @usertype ref);
+
+is_complete(unique int id: @usertype ref);
+
+is_class_template(unique int id: @usertype ref);
+class_instantiation(
+ int to: @usertype ref,
+ int from: @usertype ref
+);
+class_template_argument(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+class_template_argument_value(
+ int type_id: @usertype ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_proxy_class_for(
+ unique int id: @usertype ref,
+ unique int templ_param_id: @usertype ref
+);
+
+type_mentions(
+ unique int id: @type_mention,
+ int type_id: @type ref,
+ int location: @location ref,
+ // a_symbol_reference_kind from the frontend.
+ int kind: int ref
+);
+
+is_function_template(unique int id: @function ref);
+function_instantiation(
+ unique int to: @function ref,
+ int from: @function ref
+);
+function_template_argument(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+function_template_argument_value(
+ int function_id: @function ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+is_variable_template(unique int id: @variable ref);
+variable_instantiation(
+ unique int to: @variable ref,
+ int from: @variable ref
+);
+variable_template_argument(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_type: @type ref
+);
+variable_template_argument_value(
+ int variable_id: @variable ref,
+ int index: int ref,
+ int arg_value: @expr ref
+);
+
+routinetypes(
+ unique int id: @routinetype,
+ int return_type: @type ref
+);
+
+routinetypeargs(
+ int routine: @routinetype ref,
+ int index: int ref,
+ int type_id: @type ref
+);
+
+ptrtomembers(
+ unique int id: @ptrtomember,
+ int type_id: @type ref,
+ int class_id: @type ref
+);
+
+/*
+ specifiers for types, functions, and variables
+
+ "public",
+ "protected",
+ "private",
+
+ "const",
+ "volatile",
+ "static",
+
+ "pure",
+ "virtual",
+ "sealed", // Microsoft
+ "__interface", // Microsoft
+ "inline",
+ "explicit",
+
+ "near", // near far extension
+ "far", // near far extension
+ "__ptr32", // Microsoft
+ "__ptr64", // Microsoft
+ "__sptr", // Microsoft
+ "__uptr", // Microsoft
+ "dllimport", // Microsoft
+ "dllexport", // Microsoft
+ "thread", // Microsoft
+ "naked", // Microsoft
+ "microsoft_inline", // Microsoft
+ "forceinline", // Microsoft
+ "selectany", // Microsoft
+ "nothrow", // Microsoft
+ "novtable", // Microsoft
+ "noreturn", // Microsoft
+ "noinline", // Microsoft
+ "noalias", // Microsoft
+ "restrict", // Microsoft
+*/
+
+specifiers(
+ unique int id: @specifier,
+ unique string str: string ref
+);
+
+typespecifiers(
+ int type_id: @type ref,
+ int spec_id: @specifier ref
+);
+
+funspecifiers(
+ int func_id: @function ref,
+ int spec_id: @specifier ref
+);
+
+varspecifiers(
+ int var_id: @accessible ref,
+ int spec_id: @specifier ref
+);
+
+explicit_specifier_exprs(
+ unique int func_id: @function ref,
+ int constant: @expr ref
+)
+
+attributes(
+ unique int id: @attribute,
+ int kind: int ref,
+ string name: string ref,
+ string name_space: string ref,
+ int location: @location_default ref
+);
+
+case @attribute.kind of
+ 0 = @gnuattribute
+| 1 = @stdattribute
+| 2 = @declspec
+| 3 = @msattribute
+| 4 = @alignas
+// ... 5 @objc_propertyattribute deprecated
+;
+
+attribute_args(
+ unique int id: @attribute_arg,
+ int kind: int ref,
+ int attribute: @attribute ref,
+ int index: int ref,
+ int location: @location_default ref
+);
+
+case @attribute_arg.kind of
+ 0 = @attribute_arg_empty
+| 1 = @attribute_arg_token
+| 2 = @attribute_arg_constant
+| 3 = @attribute_arg_type
+| 4 = @attribute_arg_constant_expr
+| 5 = @attribute_arg_expr
+;
+
+attribute_arg_value(
+ unique int arg: @attribute_arg ref,
+ string value: string ref
+);
+attribute_arg_type(
+ unique int arg: @attribute_arg ref,
+ int type_id: @type ref
+);
+attribute_arg_constant(
+ unique int arg: @attribute_arg ref,
+ int constant: @expr ref
+)
+attribute_arg_expr(
+ unique int arg: @attribute_arg ref,
+ int expr: @expr ref
+)
+attribute_arg_name(
+ unique int arg: @attribute_arg ref,
+ string name: string ref
+);
+
+typeattributes(
+ int type_id: @type ref,
+ int spec_id: @attribute ref
+);
+
+funcattributes(
+ int func_id: @function ref,
+ int spec_id: @attribute ref
+);
+
+varattributes(
+ int var_id: @accessible ref,
+ int spec_id: @attribute ref
+);
+
+stmtattributes(
+ int stmt_id: @stmt ref,
+ int spec_id: @attribute ref
+);
+
+@type = @builtintype
+ | @derivedtype
+ | @usertype
+ /* TODO | @fixedpointtype */
+ | @routinetype
+ | @ptrtomember
+ | @decltype;
+
+unspecifiedtype(
+ unique int type_id: @type ref,
+ int unspecified_type_id: @type ref
+);
+
+member(
+ int parent: @type ref,
+ int index: int ref,
+ int child: @member ref
+);
+
+@enclosingfunction_child = @usertype | @variable | @namespace
+
+enclosingfunction(
+ unique int child: @enclosingfunction_child ref,
+ int parent: @function ref
+);
+
+derivations(
+ unique int derivation: @derivation,
+ int sub: @type ref,
+ int index: int ref,
+ int super: @type ref,
+ int location: @location_default ref
+);
+
+derspecifiers(
+ int der_id: @derivation ref,
+ int spec_id: @specifier ref
+);
+
+/**
+ * Contains the byte offset of the base class subobject within the derived
+ * class. Only holds for non-virtual base classes, but see table
+ * `virtual_base_offsets` for offsets of virtual base class subobjects.
+ */
+direct_base_offsets(
+ unique int der_id: @derivation ref,
+ int offset: int ref
+);
+
+/**
+ * Contains the byte offset of the virtual base class subobject for class
+ * `super` within a most-derived object of class `sub`. `super` can be either a
+ * direct or indirect base class.
+ */
+#keyset[sub, super]
+virtual_base_offsets(
+ int sub: @usertype ref,
+ int super: @usertype ref,
+ int offset: int ref
+);
+
+frienddecls(
+ unique int id: @frienddecl,
+ int type_id: @type ref,
+ int decl_id: @declaration ref,
+ int location: @location_default ref
+);
+
+@declaredtype = @usertype ;
+
+@declaration = @function
+ | @declaredtype
+ | @variable
+ | @enumconstant
+ | @frienddecl;
+
+@member = @membervariable
+ | @function
+ | @declaredtype
+ | @enumconstant;
+
+@locatable = @diagnostic
+ | @declaration
+ | @ppd_include
+ | @ppd_define
+ | @macroinvocation
+ /*| @funcall*/
+ | @xmllocatable
+ | @attribute
+ | @attribute_arg;
+
+@namedscope = @namespace | @usertype;
+
+@element = @locatable
+ | @file
+ | @folder
+ | @specifier
+ | @type
+ | @expr
+ | @namespace
+ | @initialiser
+ | @stmt
+ | @derivation
+ | @comment
+ | @preprocdirect
+ | @fun_decl
+ | @var_decl
+ | @type_decl
+ | @namespace_decl
+ | @using
+ | @namequalifier
+ | @specialnamequalifyingelement
+ | @static_assert
+ | @type_mention
+ | @lambdacapture;
+
+@exprparent = @element;
+
+comments(
+ unique int id: @comment,
+ string contents: string ref,
+ int location: @location_default ref
+);
+
+commentbinding(
+ int id: @comment ref,
+ int element: @element ref
+);
+
+exprconv(
+ int converted: @expr ref,
+ unique int conversion: @expr ref
+);
+
+compgenerated(unique int id: @element ref);
+
+/**
+ * `destructor_call` destructs the `i`'th entity that should be
+ * destructed following `element`. Note that entities should be
+ * destructed in reverse construction order, so for a given `element`
+ * these should be called from highest to lowest `i`.
+ */
+#keyset[element, destructor_call]
+#keyset[element, i]
+synthetic_destructor_call(
+ int element: @element ref,
+ int i: int ref,
+ int destructor_call: @routineexpr ref
+);
+
+namespaces(
+ unique int id: @namespace,
+ string name: string ref
+);
+
+namespace_inline(
+ unique int id: @namespace ref
+);
+
+namespacembrs(
+ int parentid: @namespace ref,
+ unique int memberid: @namespacembr ref
+);
+
+@namespacembr = @declaration | @namespace;
+
+exprparents(
+ int expr_id: @expr ref,
+ int child_index: int ref,
+ int parent_id: @exprparent ref
+);
+
+expr_isload(unique int expr_id: @expr ref);
+
+@cast = @c_style_cast
+ | @const_cast
+ | @dynamic_cast
+ | @reinterpret_cast
+ | @static_cast
+ ;
+
+/*
+case @conversion.kind of
+ 0 = @simple_conversion // a numeric conversion, qualification conversion, or a reinterpret_cast
+| 1 = @bool_conversion // conversion to 'bool'
+| 2 = @base_class_conversion // a derived-to-base conversion
+| 3 = @derived_class_conversion // a base-to-derived conversion
+| 4 = @pm_base_class_conversion // a derived-to-base conversion of a pointer to member
+| 5 = @pm_derived_class_conversion // a base-to-derived conversion of a pointer to member
+| 6 = @glvalue_adjust // an adjustment of the type of a glvalue
+| 7 = @prvalue_adjust // an adjustment of the type of a prvalue
+;
+*/
+/**
+ * Describes the semantics represented by a cast expression. This is largely
+ * independent of the source syntax of the cast, so it is separate from the
+ * regular expression kind.
+ */
+conversionkinds(
+ unique int expr_id: @cast ref,
+ int kind: int ref
+);
+
+@conversion = @cast
+ | @array_to_pointer
+ | @parexpr
+ | @reference_to
+ | @ref_indirect
+ | @temp_init
+ | @c11_generic
+ ;
+
+/*
+case @funbindexpr.kind of
+ 0 = @normal_call // a normal call
+| 1 = @virtual_call // a virtual call
+| 2 = @adl_call // a call whose target is only found by ADL
+;
+*/
+iscall(
+ unique int caller: @funbindexpr ref,
+ int kind: int ref
+);
+
+numtemplatearguments(
+ unique int expr_id: @expr ref,
+ int num: int ref
+);
+
+specialnamequalifyingelements(
+ unique int id: @specialnamequalifyingelement,
+ unique string name: string ref
+);
+
+@namequalifiableelement = @expr | @namequalifier;
+@namequalifyingelement = @namespace
+ | @specialnamequalifyingelement
+ | @usertype;
+
+namequalifiers(
+ unique int id: @namequalifier,
+ unique int qualifiableelement: @namequalifiableelement ref,
+ int qualifyingelement: @namequalifyingelement ref,
+ int location: @location_default ref
+);
+
+varbind(
+ int expr: @varbindexpr ref,
+ int var: @accessible ref
+);
+
+funbind(
+ int expr: @funbindexpr ref,
+ int fun: @function ref
+);
+
+@any_new_expr = @new_expr
+ | @new_array_expr;
+
+@new_or_delete_expr = @any_new_expr
+ | @delete_expr
+ | @delete_array_expr;
+
+@prefix_crement_expr = @preincrexpr | @predecrexpr;
+
+@postfix_crement_expr = @postincrexpr | @postdecrexpr;
+
+@increment_expr = @preincrexpr | @postincrexpr;
+
+@decrement_expr = @predecrexpr | @postdecrexpr;
+
+@crement_expr = @increment_expr | @decrement_expr;
+
+@un_arith_op_expr = @arithnegexpr
+ | @unaryplusexpr
+ | @conjugation
+ | @realpartexpr
+ | @imagpartexpr
+ | @crement_expr
+ ;
+
+@un_bitwise_op_expr = @complementexpr;
+
+@un_log_op_expr = @notexpr;
+
+@un_op_expr = @address_of
+ | @indirect
+ | @un_arith_op_expr
+ | @un_bitwise_op_expr
+ | @builtinaddressof
+ | @vec_fill
+ | @un_log_op_expr
+ | @co_await
+ | @co_yield
+ ;
+
+@bin_log_op_expr = @andlogicalexpr | @orlogicalexpr;
+
+@cmp_op_expr = @eq_op_expr | @rel_op_expr;
+
+@eq_op_expr = @eqexpr | @neexpr;
+
+@rel_op_expr = @gtexpr
+ | @ltexpr
+ | @geexpr
+ | @leexpr
+ | @spaceshipexpr
+ ;
+
+@bin_bitwise_op_expr = @lshiftexpr
+ | @rshiftexpr
+ | @andexpr
+ | @orexpr
+ | @xorexpr
+ ;
+
+@p_arith_op_expr = @paddexpr
+ | @psubexpr
+ | @pdiffexpr
+ ;
+
+@bin_arith_op_expr = @addexpr
+ | @subexpr
+ | @mulexpr
+ | @divexpr
+ | @remexpr
+ | @jmulexpr
+ | @jdivexpr
+ | @fjaddexpr
+ | @jfaddexpr
+ | @fjsubexpr
+ | @jfsubexpr
+ | @minexpr
+ | @maxexpr
+ | @p_arith_op_expr
+ ;
+
+@bin_op_expr = @bin_arith_op_expr
+ | @bin_bitwise_op_expr
+ | @cmp_op_expr
+ | @bin_log_op_expr
+ ;
+
+@op_expr = @un_op_expr
+ | @bin_op_expr
+ | @assign_expr
+ | @conditionalexpr
+ ;
+
+@assign_arith_expr = @assignaddexpr
+ | @assignsubexpr
+ | @assignmulexpr
+ | @assigndivexpr
+ | @assignremexpr
+ ;
+
+@assign_bitwise_expr = @assignandexpr
+ | @assignorexpr
+ | @assignxorexpr
+ | @assignlshiftexpr
+ | @assignrshiftexpr
+ ;
+
+@assign_pointer_expr = @assignpaddexpr
+ | @assignpsubexpr
+ ;
+
+@assign_op_expr = @assign_arith_expr
+ | @assign_bitwise_expr
+ | @assign_pointer_expr
+ ;
+
+@assign_expr = @assignexpr | @assign_op_expr | @blockassignexpr
+
+/*
+ Binary encoding of the allocator form.
+
+ case @allocator.form of
+ 0 = plain
+ | 1 = alignment
+ ;
+*/
+
+/**
+ * The allocator function associated with a `new` or `new[]` expression.
+ * The `form` column specified whether the allocation call contains an alignment
+ * argument.
+ */
+expr_allocator(
+ unique int expr: @any_new_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/*
+ Binary encoding of the deallocator form.
+
+ case @deallocator.form of
+ 0 = plain
+ | 1 = size
+ | 2 = alignment
+ | 4 = destroying_delete
+ ;
+*/
+
+/**
+ * The deallocator function associated with a `delete`, `delete[]`, `new`, or
+ * `new[]` expression. For a `new` or `new[]` expression, the deallocator is the
+ * one used to free memory if the initialization throws an exception.
+ * The `form` column specifies whether the deallocation call contains a size
+ * argument, and alignment argument, or both.
+ */
+expr_deallocator(
+ unique int expr: @new_or_delete_expr ref,
+ int func: @function ref,
+ int form: int ref
+);
+
+/**
+ * Holds if the `@conditionalexpr` is of the two operand form
+ * `guard ? : false`.
+ */
+expr_cond_two_operand(
+ unique int cond: @conditionalexpr ref
+);
+
+/**
+ * The guard of `@conditionalexpr` `guard ? true : false`
+ */
+expr_cond_guard(
+ unique int cond: @conditionalexpr ref,
+ int guard: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` holds. For the two operand form
+ * `guard ?: false` consider using `expr_cond_guard` instead.
+ */
+expr_cond_true(
+ unique int cond: @conditionalexpr ref,
+ int true: @expr ref
+);
+
+/**
+ * The expression used when the guard of `@conditionalexpr`
+ * `guard ? true : false` does not hold.
+ */
+expr_cond_false(
+ unique int cond: @conditionalexpr ref,
+ int false: @expr ref
+);
+
+/** A string representation of the value. */
+values(
+ unique int id: @value,
+ string str: string ref
+);
+
+/** The actual text in the source code for the value, if any. */
+valuetext(
+ unique int id: @value ref,
+ string text: string ref
+);
+
+valuebind(
+ int val: @value ref,
+ unique int expr: @expr ref
+);
+
+fieldoffsets(
+ unique int id: @variable ref,
+ int byteoffset: int ref,
+ int bitoffset: int ref
+);
+
+bitfield(
+ unique int id: @variable ref,
+ int bits: int ref,
+ int declared_bits: int ref
+);
+
+/* TODO
+memberprefix(
+ int member: @expr ref,
+ int prefix: @expr ref
+);
+*/
+
+/*
+ kind(1) = mbrcallexpr
+ kind(2) = mbrptrcallexpr
+ kind(3) = mbrptrmbrcallexpr
+ kind(4) = ptrmbrptrmbrcallexpr
+ kind(5) = mbrreadexpr // x.y
+ kind(6) = mbrptrreadexpr // p->y
+ kind(7) = mbrptrmbrreadexpr // x.*pm
+ kind(8) = mbrptrmbrptrreadexpr // x->*pm
+ kind(9) = staticmbrreadexpr // static x.y
+ kind(10) = staticmbrptrreadexpr // static p->y
+*/
+/* TODO
+memberaccess(
+ int member: @expr ref,
+ int kind: int ref
+);
+*/
+
+initialisers(
+ unique int init: @initialiser,
+ int var: @accessible ref,
+ unique int expr: @expr ref,
+ int location: @location_expr ref
+);
+
+braced_initialisers(
+ int init: @initialiser ref
+);
+
+/**
+ * An ancestor for the expression, for cases in which we cannot
+ * otherwise find the expression's parent.
+ */
+expr_ancestor(
+ int exp: @expr ref,
+ int ancestor: @element ref
+);
+
+exprs(
+ unique int id: @expr,
+ int kind: int ref,
+ int location: @location_expr ref
+);
+
+expr_reuse(
+ int reuse: @expr ref,
+ int original: @expr ref,
+ int value_category: int ref
+)
+
+/*
+ case @value.category of
+ 1 = prval
+ | 2 = xval
+ | 3 = lval
+ ;
+*/
+expr_types(
+ int id: @expr ref,
+ int typeid: @type ref,
+ int value_category: int ref
+);
+
+case @expr.kind of
+ 1 = @errorexpr
+| 2 = @address_of // & AddressOfExpr
+| 3 = @reference_to // ReferenceToExpr (implicit?)
+| 4 = @indirect // * PointerDereferenceExpr
+| 5 = @ref_indirect // ReferenceDereferenceExpr (implicit?)
+// ...
+| 8 = @array_to_pointer // (???)
+| 9 = @vacuous_destructor_call // VacuousDestructorCall
+// ...
+| 11 = @assume // Microsoft
+| 12 = @parexpr
+| 13 = @arithnegexpr
+| 14 = @unaryplusexpr
+| 15 = @complementexpr
+| 16 = @notexpr
+| 17 = @conjugation // GNU ~ operator
+| 18 = @realpartexpr // GNU __real
+| 19 = @imagpartexpr // GNU __imag
+| 20 = @postincrexpr
+| 21 = @postdecrexpr
+| 22 = @preincrexpr
+| 23 = @predecrexpr
+| 24 = @conditionalexpr
+| 25 = @addexpr
+| 26 = @subexpr
+| 27 = @mulexpr
+| 28 = @divexpr
+| 29 = @remexpr
+| 30 = @jmulexpr // C99 mul imaginary
+| 31 = @jdivexpr // C99 div imaginary
+| 32 = @fjaddexpr // C99 add real + imaginary
+| 33 = @jfaddexpr // C99 add imaginary + real
+| 34 = @fjsubexpr // C99 sub real - imaginary
+| 35 = @jfsubexpr // C99 sub imaginary - real
+| 36 = @paddexpr // pointer add (pointer + int or int + pointer)
+| 37 = @psubexpr // pointer sub (pointer - integer)
+| 38 = @pdiffexpr // difference between two pointers
+| 39 = @lshiftexpr
+| 40 = @rshiftexpr
+| 41 = @andexpr
+| 42 = @orexpr
+| 43 = @xorexpr
+| 44 = @eqexpr
+| 45 = @neexpr
+| 46 = @gtexpr
+| 47 = @ltexpr
+| 48 = @geexpr
+| 49 = @leexpr
+| 50 = @minexpr // GNU minimum
+| 51 = @maxexpr // GNU maximum
+| 52 = @assignexpr
+| 53 = @assignaddexpr
+| 54 = @assignsubexpr
+| 55 = @assignmulexpr
+| 56 = @assigndivexpr
+| 57 = @assignremexpr
+| 58 = @assignlshiftexpr
+| 59 = @assignrshiftexpr
+| 60 = @assignandexpr
+| 61 = @assignorexpr
+| 62 = @assignxorexpr
+| 63 = @assignpaddexpr // assign pointer add
+| 64 = @assignpsubexpr // assign pointer sub
+| 65 = @andlogicalexpr
+| 66 = @orlogicalexpr
+| 67 = @commaexpr
+| 68 = @subscriptexpr // access to member of an array, e.g., a[5]
+// ... 69 @objc_subscriptexpr deprecated
+// ... 70 @cmdaccess deprecated
+// ...
+| 73 = @virtfunptrexpr
+| 74 = @callexpr
+// ... 75 @msgexpr_normal deprecated
+// ... 76 @msgexpr_super deprecated
+// ... 77 @atselectorexpr deprecated
+// ... 78 @atprotocolexpr deprecated
+| 79 = @vastartexpr
+| 80 = @vaargexpr
+| 81 = @vaendexpr
+| 82 = @vacopyexpr
+// ... 83 @atencodeexpr deprecated
+| 84 = @varaccess
+| 85 = @thisaccess
+// ... 86 @objc_box_expr deprecated
+| 87 = @new_expr
+| 88 = @delete_expr
+| 89 = @throw_expr
+| 90 = @condition_decl // a variable declared in a condition, e.g., if(int x = y > 2)
+| 91 = @braced_init_list
+| 92 = @type_id
+| 93 = @runtime_sizeof
+| 94 = @runtime_alignof
+| 95 = @sizeof_pack
+| 96 = @expr_stmt // GNU extension
+| 97 = @routineexpr
+| 98 = @type_operand // used to access a type in certain contexts (haven't found any examples yet....)
+| 99 = @offsetofexpr // offsetof ::= type and field
+| 100 = @hasassignexpr // __has_assign ::= type
+| 101 = @hascopyexpr // __has_copy ::= type
+| 102 = @hasnothrowassign // __has_nothrow_assign ::= type
+| 103 = @hasnothrowconstr // __has_nothrow_constructor ::= type
+| 104 = @hasnothrowcopy // __has_nothrow_copy ::= type
+| 105 = @hastrivialassign // __has_trivial_assign ::= type
+| 106 = @hastrivialconstr // __has_trivial_constructor ::= type
+| 107 = @hastrivialcopy // __has_trivial_copy ::= type
+| 108 = @hasuserdestr // __has_user_destructor ::= type
+| 109 = @hasvirtualdestr // __has_virtual_destructor ::= type
+| 110 = @isabstractexpr // __is_abstract ::= type
+| 111 = @isbaseofexpr // __is_base_of ::= type type
+| 112 = @isclassexpr // __is_class ::= type
+| 113 = @isconvtoexpr // __is_convertible_to ::= type type
+| 114 = @isemptyexpr // __is_empty ::= type
+| 115 = @isenumexpr // __is_enum ::= type
+| 116 = @ispodexpr // __is_pod ::= type
+| 117 = @ispolyexpr // __is_polymorphic ::= type
+| 118 = @isunionexpr // __is_union ::= type
+| 119 = @typescompexpr // GNU __builtin_types_compatible ::= type type
+| 120 = @intaddrexpr // frontend internal builtin, used to implement offsetof
+// ...
+| 122 = @hastrivialdestructor // __has_trivial_destructor ::= type
+| 123 = @literal
+| 124 = @uuidof
+| 127 = @aggregateliteral
+| 128 = @delete_array_expr
+| 129 = @new_array_expr
+// ... 130 @objc_array_literal deprecated
+// ... 131 @objc_dictionary_literal deprecated
+| 132 = @foldexpr
+// ...
+| 200 = @ctordirectinit
+| 201 = @ctorvirtualinit
+| 202 = @ctorfieldinit
+| 203 = @ctordelegatinginit
+| 204 = @dtordirectdestruct
+| 205 = @dtorvirtualdestruct
+| 206 = @dtorfielddestruct
+// ...
+| 210 = @static_cast
+| 211 = @reinterpret_cast
+| 212 = @const_cast
+| 213 = @dynamic_cast
+| 214 = @c_style_cast
+| 215 = @lambdaexpr
+| 216 = @param_ref
+| 217 = @noopexpr
+// ...
+| 294 = @istriviallyconstructibleexpr
+| 295 = @isdestructibleexpr
+| 296 = @isnothrowdestructibleexpr
+| 297 = @istriviallydestructibleexpr
+| 298 = @istriviallyassignableexpr
+| 299 = @isnothrowassignableexpr
+| 300 = @istrivialexpr
+| 301 = @isstandardlayoutexpr
+| 302 = @istriviallycopyableexpr
+| 303 = @isliteraltypeexpr
+| 304 = @hastrivialmoveconstructorexpr
+| 305 = @hastrivialmoveassignexpr
+| 306 = @hasnothrowmoveassignexpr
+| 307 = @isconstructibleexpr
+| 308 = @isnothrowconstructibleexpr
+| 309 = @hasfinalizerexpr
+| 310 = @isdelegateexpr
+| 311 = @isinterfaceclassexpr
+| 312 = @isrefarrayexpr
+| 313 = @isrefclassexpr
+| 314 = @issealedexpr
+| 315 = @issimplevalueclassexpr
+| 316 = @isvalueclassexpr
+| 317 = @isfinalexpr
+| 319 = @noexceptexpr
+| 320 = @builtinshufflevector
+| 321 = @builtinchooseexpr
+| 322 = @builtinaddressof
+| 323 = @vec_fill
+| 324 = @builtinconvertvector
+| 325 = @builtincomplex
+| 326 = @spaceshipexpr
+| 327 = @co_await
+| 328 = @co_yield
+| 329 = @temp_init
+| 330 = @isassignable
+| 331 = @isaggregate
+| 332 = @hasuniqueobjectrepresentations
+| 333 = @builtinbitcast
+| 334 = @builtinshuffle
+| 335 = @blockassignexpr
+| 336 = @issame
+| 337 = @isfunction
+| 338 = @islayoutcompatible
+| 339 = @ispointerinterconvertiblebaseof
+| 340 = @isarray
+| 341 = @arrayrank
+| 342 = @arrayextent
+| 343 = @isarithmetic
+| 344 = @iscompletetype
+| 345 = @iscompound
+| 346 = @isconst
+| 347 = @isfloatingpoint
+| 348 = @isfundamental
+| 349 = @isintegral
+| 350 = @islvaluereference
+| 351 = @ismemberfunctionpointer
+| 352 = @ismemberobjectpointer
+| 353 = @ismemberpointer
+| 354 = @isobject
+| 355 = @ispointer
+| 356 = @isreference
+| 357 = @isrvaluereference
+| 358 = @isscalar
+| 359 = @issigned
+| 360 = @isunsigned
+| 361 = @isvoid
+| 362 = @isvolatile
+| 363 = @reuseexpr
+| 364 = @istriviallycopyassignable
+| 365 = @isassignablenopreconditioncheck
+| 366 = @referencebindstotemporary
+| 367 = @issameas
+| 368 = @builtinhasattribute
+| 369 = @ispointerinterconvertiblewithclass
+| 370 = @builtinispointerinterconvertiblewithclass
+| 371 = @iscorrespondingmember
+| 372 = @builtiniscorrespondingmember
+| 373 = @isboundedarray
+| 374 = @isunboundedarray
+| 375 = @isreferenceable
+| 378 = @isnothrowconvertible
+| 379 = @referenceconstructsfromtemporary
+| 380 = @referenceconvertsfromtemporary
+| 381 = @isconvertible
+| 382 = @isvalidwinrttype
+| 383 = @iswinclass
+| 384 = @iswininterface
+| 385 = @istriviallyequalitycomparable
+| 386 = @isscopedenum
+| 387 = @istriviallyrelocatable
+| 388 = @datasizeof
+| 389 = @c11_generic
+;
+
+@var_args_expr = @vastartexpr
+ | @vaendexpr
+ | @vaargexpr
+ | @vacopyexpr
+ ;
+
+@builtin_op = @var_args_expr
+ | @noopexpr
+ | @offsetofexpr
+ | @intaddrexpr
+ | @hasassignexpr
+ | @hascopyexpr
+ | @hasnothrowassign
+ | @hasnothrowconstr
+ | @hasnothrowcopy
+ | @hastrivialassign
+ | @hastrivialconstr
+ | @hastrivialcopy
+ | @hastrivialdestructor
+ | @hasuserdestr
+ | @hasvirtualdestr
+ | @isabstractexpr
+ | @isbaseofexpr
+ | @isclassexpr
+ | @isconvtoexpr
+ | @isemptyexpr
+ | @isenumexpr
+ | @ispodexpr
+ | @ispolyexpr
+ | @isunionexpr
+ | @typescompexpr
+ | @builtinshufflevector
+ | @builtinconvertvector
+ | @builtinaddressof
+ | @istriviallyconstructibleexpr
+ | @isdestructibleexpr
+ | @isnothrowdestructibleexpr
+ | @istriviallydestructibleexpr
+ | @istriviallyassignableexpr
+ | @isnothrowassignableexpr
+ | @istrivialexpr
+ | @isstandardlayoutexpr
+ | @istriviallycopyableexpr
+ | @isliteraltypeexpr
+ | @hastrivialmoveconstructorexpr
+ | @hastrivialmoveassignexpr
+ | @hasnothrowmoveassignexpr
+ | @isconstructibleexpr
+ | @isnothrowconstructibleexpr
+ | @hasfinalizerexpr
+ | @isdelegateexpr
+ | @isinterfaceclassexpr
+ | @isrefarrayexpr
+ | @isrefclassexpr
+ | @issealedexpr
+ | @issimplevalueclassexpr
+ | @isvalueclassexpr
+ | @isfinalexpr
+ | @builtinchooseexpr
+ | @builtincomplex
+ | @isassignable
+ | @isaggregate
+ | @hasuniqueobjectrepresentations
+ | @builtinbitcast
+ | @builtinshuffle
+ | @issame
+ | @isfunction
+ | @islayoutcompatible
+ | @ispointerinterconvertiblebaseof
+ | @isarray
+ | @arrayrank
+ | @arrayextent
+ | @isarithmetic
+ | @iscompletetype
+ | @iscompound
+ | @isconst
+ | @isfloatingpoint
+ | @isfundamental
+ | @isintegral
+ | @islvaluereference
+ | @ismemberfunctionpointer
+ | @ismemberobjectpointer
+ | @ismemberpointer
+ | @isobject
+ | @ispointer
+ | @isreference
+ | @isrvaluereference
+ | @isscalar
+ | @issigned
+ | @isunsigned
+ | @isvoid
+ | @isvolatile
+ | @istriviallycopyassignable
+ | @isassignablenopreconditioncheck
+ | @referencebindstotemporary
+ | @issameas
+ | @builtinhasattribute
+ | @ispointerinterconvertiblewithclass
+ | @builtinispointerinterconvertiblewithclass
+ | @iscorrespondingmember
+ | @builtiniscorrespondingmember
+ | @isboundedarray
+ | @isunboundedarray
+ | @isreferenceable
+ | @isnothrowconvertible
+ | @referenceconstructsfromtemporary
+ | @referenceconvertsfromtemporary
+ | @isconvertible
+ | @isvalidwinrttype
+ | @iswinclass
+ | @iswininterface
+ | @istriviallyequalitycomparable
+ | @isscopedenum
+ | @istriviallyrelocatable
+ ;
+
+new_allocated_type(
+ unique int expr: @new_expr ref,
+ int type_id: @type ref
+);
+
+new_array_allocated_type(
+ unique int expr: @new_array_expr ref,
+ int type_id: @type ref
+);
+
+/**
+ * The field being initialized by an initializer expression within an aggregate
+ * initializer for a class/struct/union. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_field_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int field: @membervariable ref,
+ int position: int ref
+);
+
+/**
+ * The index of the element being initialized by an initializer expression
+ * within an aggregate initializer for an array. Position is used to sort repeated initializers.
+ */
+#keyset[aggregate, position]
+aggregate_array_init(
+ int aggregate: @aggregateliteral ref,
+ int initializer: @expr ref,
+ int element_index: int ref,
+ int position: int ref
+);
+
+@ctorinit = @ctordirectinit
+ | @ctorvirtualinit
+ | @ctorfieldinit
+ | @ctordelegatinginit;
+@dtordestruct = @dtordirectdestruct
+ | @dtorvirtualdestruct
+ | @dtorfielddestruct;
+
+
+condition_decl_bind(
+ unique int expr: @condition_decl ref,
+ unique int decl: @declaration ref
+);
+
+typeid_bind(
+ unique int expr: @type_id ref,
+ int type_id: @type ref
+);
+
+uuidof_bind(
+ unique int expr: @uuidof ref,
+ int type_id: @type ref
+);
+
+@runtime_sizeof_or_alignof = @runtime_sizeof | @runtime_alignof | @datasizeof;
+
+sizeof_bind(
+ unique int expr: @runtime_sizeof_or_alignof ref,
+ int type_id: @type ref
+);
+
+code_block(
+ unique int block: @literal ref,
+ unique int routine: @function ref
+);
+
+lambdas(
+ unique int expr: @lambdaexpr ref,
+ string default_capture: string ref,
+ boolean has_explicit_return_type: boolean ref
+);
+
+lambda_capture(
+ unique int id: @lambdacapture,
+ int lambda: @lambdaexpr ref,
+ int index: int ref,
+ int field: @membervariable ref,
+ boolean captured_by_reference: boolean ref,
+ boolean is_implicit: boolean ref,
+ int location: @location_default ref
+);
+
+@funbindexpr = @routineexpr
+ | @new_expr
+ | @delete_expr
+ | @delete_array_expr
+ | @ctordirectinit
+ | @ctorvirtualinit
+ | @ctordelegatinginit
+ | @dtordirectdestruct
+ | @dtorvirtualdestruct;
+
+@varbindexpr = @varaccess | @ctorfieldinit | @dtorfielddestruct;
+@addressable = @function | @variable ;
+@accessible = @addressable | @enumconstant ;
+
+@access = @varaccess | @routineexpr ;
+
+fold(
+ int expr: @foldexpr ref,
+ string operator: string ref,
+ boolean is_left_fold: boolean ref
+);
+
+stmts(
+ unique int id: @stmt,
+ int kind: int ref,
+ int location: @location_stmt ref
+);
+
+case @stmt.kind of
+ 1 = @stmt_expr
+| 2 = @stmt_if
+| 3 = @stmt_while
+| 4 = @stmt_goto
+| 5 = @stmt_label
+| 6 = @stmt_return
+| 7 = @stmt_block
+| 8 = @stmt_end_test_while // do { ... } while ( ... )
+| 9 = @stmt_for
+| 10 = @stmt_switch_case
+| 11 = @stmt_switch
+| 13 = @stmt_asm // "asm" statement or the body of an asm function
+| 15 = @stmt_try_block
+| 16 = @stmt_microsoft_try // Microsoft
+| 17 = @stmt_decl
+| 18 = @stmt_set_vla_size // C99
+| 19 = @stmt_vla_decl // C99
+| 25 = @stmt_assigned_goto // GNU
+| 26 = @stmt_empty
+| 27 = @stmt_continue
+| 28 = @stmt_break
+| 29 = @stmt_range_based_for // C++11
+// ... 30 @stmt_at_autoreleasepool_block deprecated
+// ... 31 @stmt_objc_for_in deprecated
+// ... 32 @stmt_at_synchronized deprecated
+| 33 = @stmt_handler
+// ... 34 @stmt_finally_end deprecated
+| 35 = @stmt_constexpr_if
+| 37 = @stmt_co_return
+;
+
+type_vla(
+ int type_id: @type ref,
+ int decl: @stmt_vla_decl ref
+);
+
+variable_vla(
+ int var: @variable ref,
+ int decl: @stmt_vla_decl ref
+);
+
+if_initialization(
+ unique int if_stmt: @stmt_if ref,
+ int init_id: @stmt ref
+);
+
+if_then(
+ unique int if_stmt: @stmt_if ref,
+ int then_id: @stmt ref
+);
+
+if_else(
+ unique int if_stmt: @stmt_if ref,
+ int else_id: @stmt ref
+);
+
+constexpr_if_initialization(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int init_id: @stmt ref
+);
+
+constexpr_if_then(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int then_id: @stmt ref
+);
+
+constexpr_if_else(
+ unique int constexpr_if_stmt: @stmt_constexpr_if ref,
+ int else_id: @stmt ref
+);
+
+while_body(
+ unique int while_stmt: @stmt_while ref,
+ int body_id: @stmt ref
+);
+
+do_body(
+ unique int do_stmt: @stmt_end_test_while ref,
+ int body_id: @stmt ref
+);
+
+switch_initialization(
+ unique int switch_stmt: @stmt_switch ref,
+ int init_id: @stmt ref
+);
+
+#keyset[switch_stmt, index]
+switch_case(
+ int switch_stmt: @stmt_switch ref,
+ int index: int ref,
+ int case_id: @stmt_switch_case ref
+);
+
+switch_body(
+ unique int switch_stmt: @stmt_switch ref,
+ int body_id: @stmt ref
+);
+
+@stmt_for_or_range_based_for = @stmt_for
+ | @stmt_range_based_for;
+
+for_initialization(
+ unique int for_stmt: @stmt_for_or_range_based_for ref,
+ int init_id: @stmt ref
+);
+
+for_condition(
+ unique int for_stmt: @stmt_for ref,
+ int condition_id: @expr ref
+);
+
+for_update(
+ unique int for_stmt: @stmt_for ref,
+ int update_id: @expr ref
+);
+
+for_body(
+ unique int for_stmt: @stmt_for ref,
+ int body_id: @stmt ref
+);
+
+@stmtparent = @stmt | @expr_stmt ;
+stmtparents(
+ unique int id: @stmt ref,
+ int index: int ref,
+ int parent: @stmtparent ref
+);
+
+ishandler(unique int block: @stmt_block ref);
+
+@cfgnode = @stmt | @expr | @function | @initialiser ;
+
+stmt_decl_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl: @declaration ref
+);
+
+stmt_decl_entry_bind(
+ int stmt: @stmt_decl ref,
+ int num: int ref,
+ int decl_entry: @element ref
+);
+
+@functionorblock = @function | @stmt_block;
+
+blockscope(
+ unique int block: @stmt_block ref,
+ int enclosing: @functionorblock ref
+);
+
+@jump = @stmt_goto | @stmt_break | @stmt_continue;
+
+@jumporlabel = @jump | @stmt_label | @literal;
+
+jumpinfo(
+ unique int id: @jumporlabel ref,
+ string str: string ref,
+ int target: @stmt ref
+);
+
+preprocdirects(
+ unique int id: @preprocdirect,
+ int kind: int ref,
+ int location: @location_default ref
+);
+case @preprocdirect.kind of
+ 0 = @ppd_if
+| 1 = @ppd_ifdef
+| 2 = @ppd_ifndef
+| 3 = @ppd_elif
+| 4 = @ppd_else
+| 5 = @ppd_endif
+| 6 = @ppd_plain_include
+| 7 = @ppd_define
+| 8 = @ppd_undef
+| 9 = @ppd_line
+| 10 = @ppd_error
+| 11 = @ppd_pragma
+| 12 = @ppd_objc_import
+| 13 = @ppd_include_next
+| 18 = @ppd_warning
+;
+
+@ppd_include = @ppd_plain_include | @ppd_objc_import | @ppd_include_next;
+
+@ppd_branch = @ppd_if | @ppd_ifdef | @ppd_ifndef | @ppd_elif;
+
+preprocpair(
+ int begin : @ppd_branch ref,
+ int elseelifend : @preprocdirect ref
+);
+
+preproctrue(int branch : @ppd_branch ref);
+preprocfalse(int branch : @ppd_branch ref);
+
+preproctext(
+ unique int id: @preprocdirect ref,
+ string head: string ref,
+ string body: string ref
+);
+
+includes(
+ unique int id: @ppd_include ref,
+ int included: @file ref
+);
+
+link_targets(
+ int id: @link_target,
+ int binary: @file ref
+);
+
+link_parent(
+ int element : @element ref,
+ int link_target : @link_target ref
+);
+
+/* XML Files */
+
+xmlEncoding(unique int id: @file ref, string encoding: string ref);
+
+xmlDTDs(
+ unique int id: @xmldtd,
+ string root: string ref,
+ string publicId: string ref,
+ string systemId: string ref,
+ int fileid: @file ref
+);
+
+xmlElements(
+ unique int id: @xmlelement,
+ string name: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlAttrs(
+ unique int id: @xmlattribute,
+ int elementid: @xmlelement ref,
+ string name: string ref,
+ string value: string ref,
+ int idx: int ref,
+ int fileid: @file ref
+);
+
+xmlNs(
+ int id: @xmlnamespace,
+ string prefixName: string ref,
+ string URI: string ref,
+ int fileid: @file ref
+);
+
+xmlHasNs(
+ int elementId: @xmlnamespaceable ref,
+ int nsId: @xmlnamespace ref,
+ int fileid: @file ref
+);
+
+xmlComments(
+ unique int id: @xmlcomment,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int fileid: @file ref
+);
+
+xmlChars(
+ unique int id: @xmlcharacters,
+ string text: string ref,
+ int parentid: @xmlparent ref,
+ int idx: int ref,
+ int isCDATA: int ref,
+ int fileid: @file ref
+);
+
+@xmlparent = @file | @xmlelement;
+@xmlnamespaceable = @xmlelement | @xmlattribute;
+
+xmllocations(
+ int xmlElement: @xmllocatable ref,
+ int location: @location_default ref
+);
+
+@xmllocatable = @xmlcharacters
+ | @xmlelement
+ | @xmlcomment
+ | @xmlattribute
+ | @xmldtd
+ | @file
+ | @xmlnamespace;
diff --git a/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/upgrade.properties b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/upgrade.properties
new file mode 100644
index 000000000000..fcd771ec8549
--- /dev/null
+++ b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/upgrade.properties
@@ -0,0 +1,4 @@
+description: Improve handling of coroutine placeholder variables
+compatibility: partial
+coroutine.rel: run upgrades.qlo new_coroutine
+coroutine_placeholder_variable.rel: run upgrades.qlo new_coroutine_placeholder_variable
diff --git a/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/upgrades.ql b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/upgrades.ql
new file mode 100644
index 000000000000..d34a7c787ae9
--- /dev/null
+++ b/cpp/ql/lib/upgrades/0fea0ee7026c7c3f7d6faef4df4bf67847b67d71/upgrades.ql
@@ -0,0 +1,19 @@
+class Function extends @function {
+ string toString() { none() }
+}
+
+class Type extends @type {
+ string toString() { none() }
+}
+
+class Variable extends @variable {
+ string toString() { none() }
+}
+
+query predicate new_coroutine(Function func, Type traits) { coroutine(func, traits, _, _) }
+
+query predicate new_coroutine_placeholder_variable(Variable var, int kind, Function func) {
+ coroutine(func, _, var, _) and kind = 1
+ or
+ coroutine(func, _, _, var) and kind = 2
+}
diff --git a/cpp/ql/test/library-tests/ir/ir/aliased_ir.expected b/cpp/ql/test/library-tests/ir/ir/aliased_ir.expected
index 51d5c943c4cc..dedc58394f96 100644
--- a/cpp/ql/test/library-tests/ir/ir/aliased_ir.expected
+++ b/cpp/ql/test/library-tests/ir/ir/aliased_ir.expected
@@ -785,66 +785,65 @@ coroutines.cpp:
#-----| Block 1
#-----| m0_4(unknown) = Phi : from 0:~m87_34, from 2:~m87_61
#-----| r0_5(bool) = Constant[1] :
-#-----| r0_6(glval) = VariableAddress :
-#-----| m0_7(bool) = Store[?] : &:r0_6, r0_5
-#-----| m0_8(unknown) = Chi : total:m0_4, partial:m0_7
+#-----| r0_6(glval) = VariableAddress[(unnamed local variable)] :
+#-----| m0_7(bool) = Store[(unnamed local variable)] : &:r0_6, r0_5
# 87| r87_36(suspend_always *) = CopyValue : r87_27
# 87| r87_37(glval) = CopyValue : r87_36
-#-----| r0_9(glval) = Convert : r87_37
+#-----| r0_8(glval) = Convert : r87_37
# 87| r87_38(glval) = FunctionAddress[await_resume] :
-# 87| v87_39(void) = Call[await_resume] : func:r87_38, this:r0_9
-# 87| m87_40(unknown) = ^CallSideEffect : ~m0_8
-# 87| m87_41(unknown) = Chi : total:m0_8, partial:m87_40
-#-----| v0_10(void) = ^IndirectReadSideEffect[-1] : &:r0_9, ~m87_41
-#-----| v0_11(void) = CopyValue : v87_39
-#-----| r0_12(glval) = VariableAddress[(unnamed local variable)] :
-#-----| r0_13(glval) = FunctionAddress[return_void] :
-#-----| v0_14(void) = Call[return_void] : func:r0_13, this:r0_12
-#-----| m0_15(unknown) = ^CallSideEffect : ~m87_41
-#-----| m0_16(unknown) = Chi : total:m87_41, partial:m0_15
-#-----| v0_17(void) = ^IndirectReadSideEffect[-1] : &:r0_12, ~m0_16
-#-----| m0_18(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r0_12
-#-----| m0_19(unknown) = Chi : total:m0_16, partial:m0_18
+# 87| v87_39(void) = Call[await_resume] : func:r87_38, this:r0_8
+# 87| m87_40(unknown) = ^CallSideEffect : ~m0_4
+# 87| m87_41(unknown) = Chi : total:m0_4, partial:m87_40
+#-----| v0_9(void) = ^IndirectReadSideEffect[-1] : &:r0_8, ~m87_41
+#-----| v0_10(void) = CopyValue : v87_39
+#-----| r0_11(glval) = VariableAddress[(unnamed local variable)] :
+#-----| r0_12(glval) = FunctionAddress[return_void] :
+#-----| v0_13(void) = Call[return_void] : func:r0_12, this:r0_11
+#-----| m0_14(unknown) = ^CallSideEffect : ~m87_41
+#-----| m0_15(unknown) = Chi : total:m87_41, partial:m0_14
+#-----| v0_16(void) = ^IndirectReadSideEffect[-1] : &:r0_11, ~m0_15
+#-----| m0_17(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r0_11
+#-----| m0_18(unknown) = Chi : total:m0_15, partial:m0_17
# 88| v88_1(void) = NoOp :
-#-----| v0_20(void) = NoOp :
+#-----| v0_19(void) = NoOp :
#-----| Goto (back edge) -> Block 3
# 87| Block 2
-# 87| r87_42(suspend_always *) = CopyValue : r87_27
-# 87| r87_43(glval) = CopyValue : r87_42
-#-----| r0_21(glval) = Convert : r87_43
-# 87| r87_44(glval) = FunctionAddress[await_suspend] :
-# 87| r87_45(glval>) = VariableAddress[#temp87:20] :
-# 87| m87_46(coroutine_handle) = Uninitialized[#temp87:20] : &:r87_45
-# 87| m87_47(unknown) = Chi : total:m87_34, partial:m87_46
-# 87| r87_48(glval) = FunctionAddress[coroutine_handle] :
-# 87| r87_49(glval>) = VariableAddress :
-# 87| r87_50(glval>) = Convert : r87_49
-# 87| r87_51(coroutine_handle &) = CopyValue : r87_50
-# 87| v87_52(void) = Call[coroutine_handle] : func:r87_48, this:r87_45, 0:r87_51
-# 87| m87_53(unknown) = ^CallSideEffect : ~m87_47
-# 87| m87_54(unknown) = Chi : total:m87_47, partial:m87_53
-# 87| v87_55(void) = ^BufferReadSideEffect[0] : &:r87_51, ~m87_54
-# 87| m87_56(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r87_45
-# 87| m87_57(unknown) = Chi : total:m87_54, partial:m87_56
-# 87| r87_58(coroutine_handle) = Load[#temp87:20] : &:r87_45, ~m87_57
-# 87| v87_59(void) = Call[await_suspend] : func:r87_44, this:r0_21, 0:r87_58
-# 87| m87_60(unknown) = ^CallSideEffect : ~m87_57
-# 87| m87_61(unknown) = Chi : total:m87_57, partial:m87_60
-#-----| v0_22(void) = ^IndirectReadSideEffect[-1] : &:r0_21, ~m87_61
+# 87| r87_42(suspend_always *) = CopyValue : r87_27
+# 87| r87_43(glval) = CopyValue : r87_42
+#-----| r0_20(glval) = Convert : r87_43
+# 87| r87_44(glval) = FunctionAddress[await_suspend] :
+# 87| r87_45(glval>) = VariableAddress[#temp87:20] :
+# 87| m87_46(coroutine_handle) = Uninitialized[#temp87:20] : &:r87_45
+# 87| m87_47(unknown) = Chi : total:m87_34, partial:m87_46
+# 87| r87_48(glval) = FunctionAddress[coroutine_handle] :
+# 87| r87_49(glval>) = VariableAddress[(unnamed local variable)] :
+# 87| r87_50(glval>) = Convert : r87_49
+# 87| r87_51(coroutine_handle &) = CopyValue : r87_50
+# 87| v87_52(void) = Call[coroutine_handle] : func:r87_48, this:r87_45, 0:r87_51
+# 87| m87_53(unknown) = ^CallSideEffect : ~m87_47
+# 87| m87_54(unknown) = Chi : total:m87_47, partial:m87_53
+# 87| v87_55(void) = ^BufferReadSideEffect[0] : &:r87_51, ~m87_54
+# 87| m87_56(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r87_45
+# 87| m87_57(unknown) = Chi : total:m87_54, partial:m87_56
+# 87| r87_58(coroutine_handle) = Load[#temp87:20] : &:r87_45, ~m87_57
+# 87| v87_59(void) = Call[await_suspend] : func:r87_44, this:r0_20, 0:r87_58
+# 87| m87_60(unknown) = ^CallSideEffect : ~m87_57
+# 87| m87_61(unknown) = Chi : total:m87_57, partial:m87_60
+#-----| v0_21(void) = ^IndirectReadSideEffect[-1] : &:r0_20, ~m87_61
#-----| Goto -> Block 1
#-----| Block 3
-#-----| v0_23(void) = NoOp :
+#-----| v0_22(void) = NoOp :
# 87| r87_62(glval) = VariableAddress[(unnamed local variable)] :
# 87| r87_63(glval) = FunctionAddress[final_suspend] :
# 87| r87_64(suspend_always) = Call[final_suspend] : func:r87_63, this:r87_62
-# 87| m87_65(unknown) = ^CallSideEffect : ~m0_19
-# 87| m87_66(unknown) = Chi : total:m0_19, partial:m87_65
+# 87| m87_65(unknown) = ^CallSideEffect : ~m0_18
+# 87| m87_66(unknown) = Chi : total:m0_18, partial:m87_65
# 87| v87_67(void) = ^IndirectReadSideEffect[-1] : &:r87_62, ~m87_66
# 87| m87_68(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r87_62
# 87| m87_69(unknown) = Chi : total:m87_66, partial:m87_68
-#-----| r0_24(glval) = VariableAddress[#temp0:0] :
+#-----| r0_23(glval) = VariableAddress[#temp0:0] :
# 87| r87_70(glval) = VariableAddress[#temp87:20] :
# 87| r87_71(glval) = VariableAddress[(unnamed local variable)] :
# 87| r87_72(glval) = FunctionAddress[final_suspend] :
@@ -857,16 +856,16 @@ coroutines.cpp:
# 87| m87_79(suspend_always) = Store[#temp87:20] : &:r87_70, r87_73
# 87| m87_80(unknown) = Chi : total:m87_78, partial:m87_79
# 87| r87_81(suspend_always *) = CopyValue : r87_70
-# 87| m87_82(suspend_always *) = Store[#temp0:0] : &:r0_24, r87_81
-#-----| r0_25(suspend_always *) = Load[#temp0:0] : &:r0_24, m87_82
-# 87| r87_83(glval) = CopyValue : r0_25
+# 87| m87_82(suspend_always *) = Store[#temp0:0] : &:r0_23, r87_81
+#-----| r0_24(suspend_always *) = Load[#temp0:0] : &:r0_23, m87_82
+# 87| r87_83(glval) = CopyValue : r0_24
# 87| r87_84(glval) = Convert : r87_83
# 87| r87_85(glval) = FunctionAddress[await_ready] :
# 87| r87_86(bool) = Call[await_ready] : func:r87_85, this:r87_84
# 87| m87_87(unknown) = ^CallSideEffect : ~m87_80
# 87| m87_88(unknown) = Chi : total:m87_80, partial:m87_87
# 87| v87_89(void) = ^IndirectReadSideEffect[-1] : &:r87_84, ~m87_88
-#-----| v0_26(void) = ConditionalBranch : r87_86
+#-----| v0_25(void) = ConditionalBranch : r87_86
#-----| False -> Block 5
#-----| True -> Block 4
@@ -874,40 +873,40 @@ coroutines.cpp:
# 87| m87_90(unknown) = Phi : from 3:~m87_88, from 5:~m87_120
# 87| r87_91(suspend_always *) = CopyValue : r87_81
# 87| r87_92(glval) = CopyValue : r87_91
-#-----| r0_27(glval) = Convert : r87_92
+#-----| r0_26(glval) = Convert : r87_92
# 87| r87_93(glval) = FunctionAddress[await_resume] :
-# 87| v87_94(void) = Call[await_resume] : func:r87_93, this:r0_27
+# 87| v87_94(void) = Call[await_resume] : func:r87_93, this:r0_26
# 87| m87_95(unknown) = ^CallSideEffect : ~m87_90
# 87| m87_96(unknown) = Chi : total:m87_90, partial:m87_95
-#-----| v0_28(void) = ^IndirectReadSideEffect[-1] : &:r0_27, ~m87_96
+#-----| v0_27(void) = ^IndirectReadSideEffect[-1] : &:r0_26, ~m87_96
# 87| r87_97(glval) = VariableAddress[#return] :
# 87| v87_98(void) = ReturnValue : &:r87_97, ~m87_96
# 87| v87_99(void) = AliasedUse : ~m87_96
# 87| v87_100(void) = ExitFunction :
# 87| Block 5
-# 87| r87_101(suspend_always *) = CopyValue : r87_81
-# 87| r87_102(glval) = CopyValue : r87_101
-#-----| r0_29(glval) = Convert : r87_102
-# 87| r87_103(glval) = FunctionAddress[await_suspend] :
-# 87| r87_104(glval>) = VariableAddress[#temp87:20] :
-# 87| m87_105(coroutine_handle) = Uninitialized[#temp87:20] : &:r87_104
-# 87| m87_106(unknown) = Chi : total:m87_88, partial:m87_105
-# 87| r87_107(glval) = FunctionAddress[coroutine_handle] :
-# 87| r87_108(glval>) = VariableAddress :
-# 87| r87_109(glval>) = Convert : r87_108
-# 87| r87_110(coroutine_handle &) = CopyValue : r87_109
-# 87| v87_111(void) = Call[coroutine_handle] : func:r87_107, this:r87_104, 0:r87_110
-# 87| m87_112(unknown) = ^CallSideEffect : ~m87_106
-# 87| m87_113(unknown) = Chi : total:m87_106, partial:m87_112
-# 87| v87_114(void) = ^BufferReadSideEffect[0] : &:r87_110, ~m87_113
-# 87| m87_115(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r87_104
-# 87| m87_116(unknown) = Chi : total:m87_113, partial:m87_115
-# 87| r87_117(coroutine_handle) = Load[#temp87:20] : &:r87_104, ~m87_116
-# 87| v87_118(void) = Call[await_suspend] : func:r87_103, this:r0_29, 0:r87_117
-# 87| m87_119(unknown) = ^CallSideEffect : ~m87_116
-# 87| m87_120(unknown) = Chi : total:m87_116, partial:m87_119
-#-----| v0_30(void) = ^IndirectReadSideEffect[-1] : &:r0_29, ~m87_120
+# 87| r87_101(suspend_always *) = CopyValue : r87_81
+# 87| r87_102(glval) = CopyValue : r87_101
+#-----| r0_28(glval) = Convert : r87_102
+# 87| r87_103(glval) = FunctionAddress[await_suspend] :
+# 87| r87_104(glval>) = VariableAddress[#temp87:20] :
+# 87| m87_105(coroutine_handle) = Uninitialized[#temp87:20] : &:r87_104
+# 87| m87_106(unknown) = Chi : total:m87_88, partial:m87_105
+# 87| r87_107(glval) = FunctionAddress[coroutine_handle] :
+# 87| r87_108(glval>) = VariableAddress[(unnamed local variable)] :
+# 87| r87_109(glval>) = Convert : r87_108
+# 87| r87_110(coroutine_handle &) = CopyValue : r87_109
+# 87| v87_111(void) = Call[coroutine_handle] : func:r87_107, this:r87_104, 0:r87_110
+# 87| m87_112(unknown) = ^CallSideEffect : ~m87_106
+# 87| m87_113(unknown) = Chi : total:m87_106, partial:m87_112
+# 87| v87_114(void) = ^BufferReadSideEffect[0] : &:r87_110, ~m87_113
+# 87| m87_115(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r87_104
+# 87| m87_116(unknown) = Chi : total:m87_113, partial:m87_115
+# 87| r87_117(coroutine_handle) = Load[#temp87:20] : &:r87_104, ~m87_116
+# 87| v87_118(void) = Call[await_suspend] : func:r87_103, this:r0_28, 0:r87_117
+# 87| m87_119(unknown) = ^CallSideEffect : ~m87_116
+# 87| m87_120(unknown) = Chi : total:m87_116, partial:m87_119
+#-----| v0_29(void) = ^IndirectReadSideEffect[-1] : &:r0_28, ~m87_120
#-----| Goto -> Block 4
# 91| co_returnable_value co_return_int(int)
@@ -962,68 +961,67 @@ coroutines.cpp:
#-----| Block 1
#-----| m0_8(unknown) = Phi : from 0:~m91_36, from 2:~m91_63
#-----| r0_9(bool) = Constant[1] :
-#-----| r0_10(glval) = VariableAddress :
-#-----| m0_11(bool) = Store[?] : &:r0_10, r0_9
-#-----| m0_12(unknown) = Chi : total:m0_8, partial:m0_11
+#-----| r0_10(glval) = VariableAddress[(unnamed local variable)] :
+#-----| m0_11(bool) = Store[(unnamed local variable)] : &:r0_10, r0_9
# 91| r91_38(suspend_always *) = CopyValue : r91_29
# 91| r91_39(glval) = CopyValue : r91_38
-#-----| r0_13(glval) = Convert : r91_39
+#-----| r0_12(glval) = Convert : r91_39
# 91| r91_40(glval) = FunctionAddress[await_resume] :
-# 91| v91_41(void) = Call[await_resume] : func:r91_40, this:r0_13
-# 91| m91_42(unknown) = ^CallSideEffect : ~m0_12
-# 91| m91_43(unknown) = Chi : total:m0_12, partial:m91_42
-#-----| v0_14(void) = ^IndirectReadSideEffect[-1] : &:r0_13, ~m91_43
-#-----| v0_15(void) = CopyValue : v91_41
-#-----| r0_16(glval) = VariableAddress[(unnamed local variable)] :
-#-----| r0_17(glval) = FunctionAddress[return_value] :
+# 91| v91_41(void) = Call[await_resume] : func:r91_40, this:r0_12
+# 91| m91_42(unknown) = ^CallSideEffect : ~m0_8
+# 91| m91_43(unknown) = Chi : total:m0_8, partial:m91_42
+#-----| v0_13(void) = ^IndirectReadSideEffect[-1] : &:r0_12, ~m91_43
+#-----| v0_14(void) = CopyValue : v91_41
+#-----| r0_15(glval) = VariableAddress[(unnamed local variable)] :
+#-----| r0_16(glval) = FunctionAddress[return_value] :
# 92| r92_1(glval) = VariableAddress[i] :
# 92| r92_2(int) = Load[i] : &:r92_1, m0_4
-#-----| v0_18(void) = Call[return_value] : func:r0_17, this:r0_16, 0:r92_2
-#-----| m0_19(unknown) = ^CallSideEffect : ~m91_43
-#-----| m0_20(unknown) = Chi : total:m91_43, partial:m0_19
-#-----| v0_21(void) = ^IndirectReadSideEffect[-1] : &:r0_16, ~m0_20
-#-----| m0_22(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r0_16
-#-----| m0_23(unknown) = Chi : total:m0_20, partial:m0_22
+#-----| v0_17(void) = Call[return_value] : func:r0_16, this:r0_15, 0:r92_2
+#-----| m0_18(unknown) = ^CallSideEffect : ~m91_43
+#-----| m0_19(unknown) = Chi : total:m91_43, partial:m0_18
+#-----| v0_20(void) = ^IndirectReadSideEffect[-1] : &:r0_15, ~m0_19
+#-----| m0_21(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r0_15
+#-----| m0_22(unknown) = Chi : total:m0_19, partial:m0_21
# 92| v92_3(void) = NoOp :
-#-----| v0_24(void) = NoOp :
+#-----| v0_23(void) = NoOp :
#-----| Goto (back edge) -> Block 3
# 91| Block 2
-# 91| r91_44(suspend_always *) = CopyValue : r91_29
-# 91| r91_45(glval) = CopyValue : r91_44
-#-----| r0_25(glval) = Convert : r91_45
-# 91| r91_46(glval) = FunctionAddress[await_suspend] :
-# 91| r91_47(glval>) = VariableAddress[#temp91:21] :
-# 91| m91_48(coroutine_handle) = Uninitialized[#temp91:21] : &:r91_47
-# 91| m91_49(unknown) = Chi : total:m91_36, partial:m91_48
-# 91| r91_50(glval) = FunctionAddress[coroutine_handle] :
-# 91| r91_51(glval>) = VariableAddress :
-# 91| r91_52(glval>) = Convert : r91_51
-# 91| r91_53(coroutine_handle &) = CopyValue : r91_52
-# 91| v91_54(void) = Call[coroutine_handle] : func:r91_50, this:r91_47, 0:r91_53
-# 91| m91_55(unknown) = ^CallSideEffect : ~m91_49
-# 91| m91_56(unknown) = Chi : total:m91_49, partial:m91_55
-# 91| v91_57(void) = ^BufferReadSideEffect[0] : &:r91_53, ~m91_56
-# 91| m91_58(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r91_47
-# 91| m91_59(unknown) = Chi : total:m91_56, partial:m91_58
-# 91| r91_60(coroutine_handle) = Load[#temp91:21] : &:r91_47, ~m91_59
-# 91| v91_61(void) = Call[await_suspend] : func:r91_46, this:r0_25, 0:r91_60
-# 91| m91_62(unknown) = ^CallSideEffect : ~m91_59
-# 91| m91_63(unknown) = Chi : total:m91_59, partial:m91_62
-#-----| v0_26(void) = ^IndirectReadSideEffect[-1] : &:r0_25, ~m91_63
+# 91| r91_44(suspend_always *) = CopyValue : r91_29
+# 91| r91_45(glval) = CopyValue : r91_44
+#-----| r0_24(glval) = Convert : r91_45
+# 91| r91_46(glval) = FunctionAddress[await_suspend] :
+# 91| r91_47(glval>) = VariableAddress[#temp91:21] :
+# 91| m91_48(coroutine_handle) = Uninitialized[#temp91:21] : &:r91_47
+# 91| m91_49(unknown) = Chi : total:m91_36, partial:m91_48
+# 91| r91_50(glval) = FunctionAddress[coroutine_handle] :
+# 91| r91_51(glval>) = VariableAddress[(unnamed local variable)] :
+# 91| r91_52(glval>) = Convert : r91_51
+# 91| r91_53(coroutine_handle &) = CopyValue : r91_52
+# 91| v91_54(void) = Call[coroutine_handle] : func:r91_50, this:r91_47, 0:r91_53
+# 91| m91_55(unknown) = ^CallSideEffect : ~m91_49
+# 91| m91_56(unknown) = Chi : total:m91_49, partial:m91_55
+# 91| v91_57(void) = ^BufferReadSideEffect[0] : &:r91_53, ~m91_56
+# 91| m91_58(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r91_47
+# 91| m91_59(unknown) = Chi : total:m91_56, partial:m91_58
+# 91| r91_60(coroutine_handle) = Load[#temp91:21] : &:r91_47, ~m91_59
+# 91| v91_61(void) = Call[await_suspend] : func:r91_46, this:r0_24, 0:r91_60
+# 91| m91_62(unknown) = ^CallSideEffect : ~m91_59
+# 91| m91_63(unknown) = Chi : total:m91_59, partial:m91_62
+#-----| v0_25(void) = ^IndirectReadSideEffect[-1] : &:r0_24, ~m91_63
#-----| Goto -> Block 1
#-----| Block 3
-#-----| v0_27(void) = NoOp :
+#-----| v0_26(void) = NoOp :
# 91| r91_64(glval) = VariableAddress[(unnamed local variable)] :
# 91| r91_65(glval) = FunctionAddress[final_suspend] :
# 91| r91_66(suspend_always) = Call[final_suspend] : func:r91_65, this:r91_64
-# 91| m91_67(unknown) = ^CallSideEffect : ~m0_23
-# 91| m91_68(unknown) = Chi : total:m0_23, partial:m91_67
+# 91| m91_67(unknown) = ^CallSideEffect : ~m0_22
+# 91| m91_68(unknown) = Chi : total:m0_22, partial:m91_67
# 91| v91_69(void) = ^IndirectReadSideEffect[-1] : &:r91_64, ~m91_68
# 91| m91_70(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r91_64
# 91| m91_71(unknown) = Chi : total:m91_68, partial:m91_70
-#-----| r0_28(glval) = VariableAddress[#temp0:0] :
+#-----| r0_27(glval) = VariableAddress[#temp0:0] :
# 91| r91_72(glval) = VariableAddress[#temp91:21] :
# 91| r91_73(glval) = VariableAddress[(unnamed local variable)] :
# 91| r91_74(glval) = FunctionAddress[final_suspend] :
@@ -1036,16 +1034,16 @@ coroutines.cpp:
# 91| m91_81(suspend_always) = Store[#temp91:21] : &:r91_72, r91_75
# 91| m91_82(unknown) = Chi : total:m91_80, partial:m91_81
# 91| r91_83(suspend_always *) = CopyValue : r91_72
-# 91| m91_84(suspend_always *) = Store[#temp0:0] : &:r0_28, r91_83
-#-----| r0_29(suspend_always *) = Load[#temp0:0] : &:r0_28, m91_84
-# 91| r91_85(glval) = CopyValue : r0_29
+# 91| m91_84(suspend_always *) = Store[#temp0:0] : &:r0_27, r91_83
+#-----| r0_28(suspend_always *) = Load[#temp0:0] : &:r0_27, m91_84
+# 91| r91_85(glval) = CopyValue : r0_28
# 91| r91_86(glval) = Convert : r91_85
# 91| r91_87(glval) = FunctionAddress[await_ready] :
# 91| r91_88(bool) = Call[await_ready] : func:r91_87, this:r91_86
# 91| m91_89(unknown) = ^CallSideEffect : ~m91_82
# 91| m91_90(unknown) = Chi : total:m91_82, partial:m91_89
# 91| v91_91(void) = ^IndirectReadSideEffect[-1] : &:r91_86, ~m91_90
-#-----| v0_30(void) = ConditionalBranch : r91_88
+#-----| v0_29(void) = ConditionalBranch : r91_88
#-----| False -> Block 5
#-----| True -> Block 4
@@ -1053,40 +1051,40 @@ coroutines.cpp:
# 91| m91_92(unknown) = Phi : from 3:~m91_90, from 5:~m91_122
# 91| r91_93(suspend_always *) = CopyValue : r91_83
# 91| r91_94(glval) = CopyValue : r91_93
-#-----| r0_31(glval) = Convert : r91_94
+#-----| r0_30(glval) = Convert : r91_94
# 91| r91_95(glval) = FunctionAddress[await_resume] :
-# 91| v91_96(void) = Call[await_resume] : func:r91_95, this:r0_31
+# 91| v91_96(void) = Call[await_resume] : func:r91_95, this:r0_30
# 91| m91_97(unknown) = ^CallSideEffect : ~m91_92
# 91| m91_98(unknown) = Chi : total:m91_92, partial:m91_97
-#-----| v0_32(void) = ^IndirectReadSideEffect[-1] : &:r0_31, ~m91_98
+#-----| v0_31(void) = ^IndirectReadSideEffect[-1] : &:r0_30, ~m91_98
# 91| r91_99(glval) = VariableAddress[#return] :
# 91| v91_100(void) = ReturnValue : &:r91_99, ~m91_98
# 91| v91_101(void) = AliasedUse : ~m91_98
# 91| v91_102(void) = ExitFunction :
# 91| Block 5
-# 91| r91_103(suspend_always *) = CopyValue : r91_83
-# 91| r91_104(glval) = CopyValue : r91_103
-#-----| r0_33(glval) = Convert : r91_104
-# 91| r91_105(glval) = FunctionAddress[await_suspend] :
-# 91| r91_106(glval>) = VariableAddress[#temp91:21] :
-# 91| m91_107(coroutine_handle) = Uninitialized[#temp91:21] : &:r91_106
-# 91| m91_108(unknown) = Chi : total:m91_90, partial:m91_107
-# 91| r91_109(glval) = FunctionAddress[coroutine_handle] :
-# 91| r91_110(glval>) = VariableAddress :
-# 91| r91_111(glval>) = Convert : r91_110
-# 91| r91_112(coroutine_handle &) = CopyValue : r91_111
-# 91| v91_113(void) = Call[coroutine_handle] : func:r91_109, this:r91_106, 0:r91_112
-# 91| m91_114(unknown) = ^CallSideEffect : ~m91_108
-# 91| m91_115(unknown) = Chi : total:m91_108, partial:m91_114
-# 91| v91_116(void) = ^BufferReadSideEffect[0] : &:r91_112, ~m91_115
-# 91| m91_117(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r91_106
-# 91| m91_118(unknown) = Chi : total:m91_115, partial:m91_117
-# 91| r91_119(coroutine_handle) = Load[#temp91:21] : &:r91_106, ~m91_118
-# 91| v91_120(void) = Call[await_suspend] : func:r91_105, this:r0_33, 0:r91_119
-# 91| m91_121(unknown) = ^CallSideEffect : ~m91_118
-# 91| m91_122(unknown) = Chi : total:m91_118, partial:m91_121
-#-----| v0_34(void) = ^IndirectReadSideEffect[-1] : &:r0_33, ~m91_122
+# 91| r91_103(suspend_always *) = CopyValue : r91_83
+# 91| r91_104(glval) = CopyValue : r91_103
+#-----| r0_32(glval) = Convert : r91_104
+# 91| r91_105(glval) = FunctionAddress[await_suspend] :
+# 91| r91_106(glval>) = VariableAddress[#temp91:21] :
+# 91| m91_107(coroutine_handle) = Uninitialized[#temp91:21] : &:r91_106
+# 91| m91_108(unknown) = Chi : total:m91_90, partial:m91_107
+# 91| r91_109(glval) = FunctionAddress[coroutine_handle] :
+# 91| r91_110(glval>) = VariableAddress[(unnamed local variable)] :
+# 91| r91_111(glval>) = Convert : r91_110
+# 91| r91_112(coroutine_handle &) = CopyValue : r91_111
+# 91| v91_113(void) = Call[coroutine_handle] : func:r91_109, this:r91_106, 0:r91_112
+# 91| m91_114(unknown) = ^CallSideEffect : ~m91_108
+# 91| m91_115(unknown) = Chi : total:m91_108, partial:m91_114
+# 91| v91_116(void) = ^BufferReadSideEffect[0] : &:r91_112, ~m91_115
+# 91| m91_117(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r91_106
+# 91| m91_118(unknown) = Chi : total:m91_115, partial:m91_117
+# 91| r91_119(coroutine_handle) = Load[#temp91:21] : &:r91_106, ~m91_118
+# 91| v91_120(void) = Call[await_suspend] : func:r91_105, this:r0_32, 0:r91_119
+# 91| m91_121(unknown) = ^CallSideEffect : ~m91_118
+# 91| m91_122(unknown) = Chi : total:m91_118, partial:m91_121
+#-----| v0_33(void) = ^IndirectReadSideEffect[-1] : &:r0_32, ~m91_122
#-----| Goto -> Block 4
# 95| co_returnable_void co_yield_value_void(int)
@@ -1141,18 +1139,17 @@ coroutines.cpp:
#-----| Block 1
#-----| m0_8(unknown) = Phi : from 0:~m95_36, from 2:~m95_63
#-----| r0_9(bool) = Constant[1] :
-#-----| r0_10(glval) = VariableAddress :
-#-----| m0_11(bool) = Store[?] : &:r0_10, r0_9
-#-----| m0_12(unknown) = Chi : total:m0_8, partial:m0_11
+#-----| r0_10(glval) = VariableAddress[(unnamed local variable)] :
+#-----| m0_11(bool) = Store[(unnamed local variable)] : &:r0_10, r0_9
# 95| r95_38(suspend_always *) = CopyValue : r95_29
# 95| r95_39(glval) = CopyValue : r95_38
-#-----| r0_13(glval) = Convert : r95_39
+#-----| r0_12(glval) = Convert : r95_39
# 95| r95_40(glval) = FunctionAddress[await_resume] :
-# 95| v95_41(void) = Call[await_resume] : func:r95_40, this:r0_13
-# 95| m95_42(unknown) = ^CallSideEffect : ~m0_12
-# 95| m95_43(unknown) = Chi : total:m0_12, partial:m95_42
-#-----| v0_14(void) = ^IndirectReadSideEffect[-1] : &:r0_13, ~m95_43
-#-----| v0_15(void) = CopyValue : v95_41
+# 95| v95_41(void) = Call[await_resume] : func:r95_40, this:r0_12
+# 95| m95_42(unknown) = ^CallSideEffect : ~m0_8
+# 95| m95_43(unknown) = Chi : total:m0_8, partial:m95_42
+#-----| v0_13(void) = ^IndirectReadSideEffect[-1] : &:r0_12, ~m95_43
+#-----| v0_14(void) = CopyValue : v95_41
# 96| r96_1(glval) = VariableAddress[(unnamed local variable)] :
# 96| r96_2(glval) = FunctionAddress[yield_value] :
# 96| r96_3(glval) = VariableAddress[i] :
@@ -1163,7 +1160,7 @@ coroutines.cpp:
# 96| v96_8(void) = ^IndirectReadSideEffect[-1] : &:r96_1, ~m96_7
# 96| m96_9(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r96_1
# 96| m96_10(unknown) = Chi : total:m96_7, partial:m96_9
-#-----| r0_16(glval) = VariableAddress[#temp0:0] :
+#-----| r0_15(glval) = VariableAddress[#temp0:0] :
# 96| r96_11(glval) = VariableAddress[#temp96:13] :
# 96| r96_12(glval) = VariableAddress[(unnamed local variable)] :
# 96| r96_13(glval) = FunctionAddress[yield_value] :
@@ -1178,9 +1175,9 @@ coroutines.cpp:
# 96| m96_22(suspend_always) = Store[#temp96:13] : &:r96_11, r96_16
# 96| m96_23(unknown) = Chi : total:m96_21, partial:m96_22
# 96| r96_24(suspend_always *) = CopyValue : r96_11
-# 96| m96_25(suspend_always *) = Store[#temp0:0] : &:r0_16, r96_24
-#-----| r0_17(suspend_always *) = Load[#temp0:0] : &:r0_16, m96_25
-# 96| r96_26(glval) = CopyValue : r0_17
+# 96| m96_25(suspend_always *) = Store[#temp0:0] : &:r0_15, r96_24
+#-----| r0_16(suspend_always *) = Load[#temp0:0] : &:r0_15, m96_25
+# 96| r96_26(glval) = CopyValue : r0_16
# 96| r96_27(glval) = Convert : r96_26
# 96| r96_28(glval) = FunctionAddress[await_ready] :
# 96| r96_29(bool) = Call[await_ready] : func:r96_28, this:r96_27
@@ -1192,88 +1189,88 @@ coroutines.cpp:
#-----| True -> Block 3
# 95| Block 2
-# 95| r95_44(suspend_always *) = CopyValue : r95_29
-# 95| r95_45(glval) = CopyValue : r95_44
-#-----| r0_18(glval) = Convert : r95_45
-# 95| r95_46(glval) = FunctionAddress[await_suspend] :
-# 95| r95_47(glval>) = VariableAddress[#temp95:20] :
-# 95| m95_48(coroutine_handle) = Uninitialized[#temp95:20] : &:r95_47
-# 95| m95_49(unknown) = Chi : total:m95_36, partial:m95_48
-# 95| r95_50(glval) = FunctionAddress[coroutine_handle] :
-# 95| r95_51(glval>) = VariableAddress :
-# 95| r95_52(glval>) = Convert : r95_51
-# 95| r95_53(coroutine_handle &) = CopyValue : r95_52
-# 95| v95_54(void) = Call[coroutine_handle] : func:r95_50, this:r95_47, 0:r95_53
-# 95| m95_55(unknown) = ^CallSideEffect : ~m95_49
-# 95| m95_56(unknown) = Chi : total:m95_49, partial:m95_55
-# 95| v95_57(void) = ^BufferReadSideEffect[0] : &:r95_53, ~m95_56
-# 95| m95_58(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r95_47
-# 95| m95_59(unknown) = Chi : total:m95_56, partial:m95_58
-# 95| r95_60(coroutine_handle) = Load[#temp95:20] : &:r95_47, ~m95_59
-# 95| v95_61(void) = Call[await_suspend] : func:r95_46, this:r0_18, 0:r95_60
-# 95| m95_62(unknown) = ^CallSideEffect : ~m95_59
-# 95| m95_63(unknown) = Chi : total:m95_59, partial:m95_62
-#-----| v0_19(void) = ^IndirectReadSideEffect[-1] : &:r0_18, ~m95_63
+# 95| r95_44(suspend_always *) = CopyValue : r95_29
+# 95| r95_45(glval) = CopyValue : r95_44
+#-----| r0_17(glval) = Convert : r95_45
+# 95| r95_46(glval) = FunctionAddress[await_suspend] :
+# 95| r95_47(glval>) = VariableAddress[#temp95:20] :
+# 95| m95_48(coroutine_handle) = Uninitialized[#temp95:20] : &:r95_47
+# 95| m95_49(unknown) = Chi : total:m95_36, partial:m95_48
+# 95| r95_50(glval) = FunctionAddress[coroutine_handle] :
+# 95| r95_51(glval>) = VariableAddress[(unnamed local variable)] :
+# 95| r95_52(glval>) = Convert : r95_51
+# 95| r95_53(coroutine_handle &) = CopyValue : r95_52
+# 95| v95_54(void) = Call[coroutine_handle] : func:r95_50, this:r95_47, 0:r95_53
+# 95| m95_55(unknown) = ^CallSideEffect : ~m95_49
+# 95| m95_56(unknown) = Chi : total:m95_49, partial:m95_55
+# 95| v95_57(void) = ^BufferReadSideEffect[0] : &:r95_53, ~m95_56
+# 95| m95_58(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r95_47
+# 95| m95_59(unknown) = Chi : total:m95_56, partial:m95_58
+# 95| r95_60(coroutine_handle) = Load[#temp95:20] : &:r95_47, ~m95_59
+# 95| v95_61(void) = Call[await_suspend] : func:r95_46, this:r0_17, 0:r95_60
+# 95| m95_62(unknown) = ^CallSideEffect : ~m95_59
+# 95| m95_63(unknown) = Chi : total:m95_59, partial:m95_62
+#-----| v0_18(void) = ^IndirectReadSideEffect[-1] : &:r0_17, ~m95_63
#-----| Goto -> Block 1
# 96| Block 3
# 96| m96_34(unknown) = Phi : from 1:~m96_31, from 4:~m96_60
# 96| r96_35(suspend_always *) = CopyValue : r96_24
# 96| r96_36(glval) = CopyValue : r96_35
-#-----| r0_20(glval) = Convert : r96_36
+#-----| r0_19(glval) = Convert : r96_36
# 96| r96_37(glval) = FunctionAddress[await_resume] :
-# 96| v96_38(void) = Call[await_resume] : func:r96_37, this:r0_20
+# 96| v96_38(void) = Call[await_resume] : func:r96_37, this:r0_19
# 96| m96_39(unknown) = ^CallSideEffect : ~m96_34
# 96| m96_40(unknown) = Chi : total:m96_34, partial:m96_39
-#-----| v0_21(void) = ^IndirectReadSideEffect[-1] : &:r0_20, ~m96_40
-#-----| r0_22(glval) = VariableAddress[(unnamed local variable)] :
-#-----| r0_23(glval) = FunctionAddress[return_void] :
-#-----| v0_24(void) = Call[return_void] : func:r0_23, this:r0_22
-#-----| m0_25(unknown) = ^CallSideEffect : ~m96_40
-#-----| m0_26(unknown) = Chi : total:m96_40, partial:m0_25
-#-----| v0_27(void) = ^IndirectReadSideEffect[-1] : &:r0_22, ~m0_26
-#-----| m0_28(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r0_22
-#-----| m0_29(unknown) = Chi : total:m0_26, partial:m0_28
+#-----| v0_20(void) = ^IndirectReadSideEffect[-1] : &:r0_19, ~m96_40
+#-----| r0_21(glval) = VariableAddress[(unnamed local variable)] :
+#-----| r0_22(glval) = FunctionAddress[return_void] :
+#-----| v0_23(void) = Call[return_void] : func:r0_22, this:r0_21
+#-----| m0_24(unknown) = ^CallSideEffect : ~m96_40
+#-----| m0_25(unknown) = Chi : total:m96_40, partial:m0_24
+#-----| v0_26(void) = ^IndirectReadSideEffect[-1] : &:r0_21, ~m0_25
+#-----| m0_27(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r0_21
+#-----| m0_28(unknown) = Chi : total:m0_25, partial:m0_27
# 97| v97_1(void) = NoOp :
-#-----| v0_30(void) = NoOp :
+#-----| v0_29(void) = NoOp :
#-----| Goto (back edge) -> Block 5
# 96| Block 4
-# 96| r96_41(suspend_always *) = CopyValue : r96_24
-# 96| r96_42(glval) = CopyValue : r96_41
-#-----| r0_31(glval) = Convert : r96_42
-# 96| r96_43(glval) = FunctionAddress[await_suspend] :
-# 96| r96_44(glval>) = VariableAddress[#temp96:3] :
-# 96| m96_45(coroutine_handle) = Uninitialized[#temp96:3] : &:r96_44
-# 96| m96_46(unknown) = Chi : total:m96_31, partial:m96_45
-# 96| r96_47(glval) = FunctionAddress[coroutine_handle] :
-# 96| r96_48(glval>) = VariableAddress :
-# 96| r96_49(glval>) = Convert : r96_48
-# 96| r96_50(coroutine_handle &) = CopyValue : r96_49
-# 96| v96_51(void) = Call[coroutine_handle] : func:r96_47, this:r96_44, 0:r96_50
-# 96| m96_52(unknown) = ^CallSideEffect : ~m96_46
-# 96| m96_53(unknown) = Chi : total:m96_46, partial:m96_52
-# 96| v96_54(void) = ^BufferReadSideEffect[0] : &:r96_50, ~m96_53
-# 96| m96_55(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r96_44
-# 96| m96_56(unknown) = Chi : total:m96_53, partial:m96_55
-# 96| r96_57(coroutine_handle) = Load[#temp96:3] : &:r96_44, ~m96_56
-# 96| v96_58(void) = Call[await_suspend] : func:r96_43, this:r0_31, 0:r96_57
-# 96| m96_59(unknown) = ^CallSideEffect : ~m96_56
-# 96| m96_60(unknown) = Chi : total:m96_56, partial:m96_59
-#-----| v0_32(void) = ^IndirectReadSideEffect[-1] : &:r0_31, ~m96_60
+# 96| r96_41(suspend_always *) = CopyValue : r96_24
+# 96| r96_42(glval) = CopyValue : r96_41
+#-----| r0_30(glval) = Convert : r96_42
+# 96| r96_43(glval) = FunctionAddress[await_suspend] :
+# 96| r96_44(glval>) = VariableAddress[#temp96:3] :
+# 96| m96_45(coroutine_handle) = Uninitialized[#temp96:3] : &:r96_44
+# 96| m96_46(unknown) = Chi : total:m96_31, partial:m96_45
+# 96| r96_47(glval) = FunctionAddress[coroutine_handle] :
+# 96| r96_48(glval>) = VariableAddress[(unnamed local variable)] :
+# 96| r96_49(glval>) = Convert : r96_48
+# 96| r96_50(coroutine_handle &) = CopyValue : r96_49
+# 96| v96_51(void) = Call[coroutine_handle] : func:r96_47, this:r96_44, 0:r96_50
+# 96| m96_52(unknown) = ^CallSideEffect : ~m96_46
+# 96| m96_53(unknown) = Chi : total:m96_46, partial:m96_52
+# 96| v96_54(void) = ^BufferReadSideEffect[0] : &:r96_50, ~m96_53
+# 96| m96_55(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r96_44
+# 96| m96_56(unknown) = Chi : total:m96_53, partial:m96_55
+# 96| r96_57(coroutine_handle) = Load[#temp96:3] : &:r96_44, ~m96_56
+# 96| v96_58(void) = Call[await_suspend] : func:r96_43, this:r0_30, 0:r96_57
+# 96| m96_59(unknown) = ^CallSideEffect : ~m96_56
+# 96| m96_60(unknown) = Chi : total:m96_56, partial:m96_59
+#-----| v0_31(void) = ^IndirectReadSideEffect[-1] : &:r0_30, ~m96_60
#-----| Goto -> Block 3
#-----| Block 5
-#-----| v0_33(void) = NoOp :
+#-----| v0_32(void) = NoOp :
# 95| r95_64(glval) = VariableAddress[(unnamed local variable)] :
# 95| r95_65(glval) = FunctionAddress[final_suspend] :
# 95| r95_66(suspend_always) = Call[final_suspend] : func:r95_65, this:r95_64
-# 95| m95_67(unknown) = ^CallSideEffect : ~m0_29
-# 95| m95_68(unknown) = Chi : total:m0_29, partial:m95_67
+# 95| m95_67(unknown) = ^CallSideEffect : ~m0_28
+# 95| m95_68(unknown) = Chi : total:m0_28, partial:m95_67
# 95| v95_69(void) = ^IndirectReadSideEffect[-1] : &:r95_64, ~m95_68
# 95| m95_70(promise_type) = ^IndirectMayWriteSideEffect[-1] : &:r95_64
# 95| m95_71(unknown) = Chi : total:m95_68, partial:m95_70
-#-----| r0_34(glval) = VariableAddress[#temp0:0] :
+#-----| r0_33(glval) = VariableAddress[#temp0:0] :
# 95| r95_72(glval) = VariableAddress[#temp95:20] :
# 95| r95_73(glval) = VariableAddress[(unnamed local variable)] :
# 95| r95_74(glval) = FunctionAddress[final_suspend] :
@@ -1286,16 +1283,16 @@ coroutines.cpp:
# 95| m95_81(suspend_always) = Store[#temp95:20] : &:r95_72, r95_75
# 95| m95_82(unknown) = Chi : total:m95_80, partial:m95_81
# 95| r95_83(suspend_always *) = CopyValue : r95_72
-# 95| m95_84(suspend_always *) = Store[#temp0:0] : &:r0_34, r95_83
-#-----| r0_35(suspend_always *) = Load[#temp0:0] : &:r0_34, m95_84
-# 95| r95_85(glval) = CopyValue : r0_35
+# 95| m95_84(suspend_always *) = Store[#temp0:0] : &:r0_33, r95_83
+#-----| r0_34(suspend_always *) = Load[#temp0:0] : &:r0_33, m95_84
+# 95| r95_85(glval) = CopyValue : r0_34
# 95| r95_86(glval) = Convert : r95_85
# 95| r95_87(glval) = FunctionAddress[await_ready] :
# 95| r95_88(bool) = Call[await_ready] : func:r95_87, this:r95_86
# 95| m95_89(unknown) = ^CallSideEffect : ~m95_82
# 95| m95_90(unknown) = Chi : total:m95_82, partial:m95_89
# 95| v95_91(void) = ^IndirectReadSideEffect[-1] : &:r95_86, ~m95_90
-#-----| v0_36(void) = ConditionalBranch : r95_88
+#-----| v0_35(void) = ConditionalBranch : r95_88
#-----| False -> Block 7
#-----| True -> Block 6
@@ -1303,40 +1300,40 @@ coroutines.cpp:
# 95| m95_92(unknown) = Phi : from 5:~m95_90, from 7:~m95_122
# 95| r95_93(suspend_always *) = CopyValue : r95_83
# 95| r95_94(glval) = CopyValue : r95_93
-#-----| r0_37(glval) = Convert : r95_94
+#-----| r0_36(glval) = Convert : r95_94
# 95| r95_95(glval) = FunctionAddress[await_resume] :
-# 95| v95_96(void) = Call[await_resume] : func:r95_95, this:r0_37
+# 95| v95_96(void) = Call[await_resume] : func:r95_95, this:r0_36
# 95| m95_97(unknown) = ^CallSideEffect : ~m95_92
# 95| m95_98(unknown) = Chi : total:m95_92, partial:m95_97
-#-----| v0_38(void) = ^IndirectReadSideEffect[-1] : &:r0_37, ~m95_98
+#-----| v0_37(void) = ^IndirectReadSideEffect[-1] : &:r0_36, ~m95_98
# 95| r95_99(glval) = VariableAddress[#return] :
# 95| v95_100(void) = ReturnValue : &:r95_99, ~m95_98
# 95| v95_101(void) = AliasedUse : ~m95_98
# 95| v95_102(void) = ExitFunction :
# 95| Block 7
-# 95| r95_103(suspend_always *) = CopyValue : r95_83
-# 95| r95_104(glval) = CopyValue : r95_103
-#-----| r0_39(glval) = Convert : r95_104
-# 95| r95_105(glval) = FunctionAddress[await_suspend] :
-# 95| r95_106(glval>) = VariableAddress[#temp95:20] :
-# 95| m95_107(coroutine_handle) = Uninitialized[#temp95:20] : &:r95_106
-# 95| m95_108(unknown) = Chi : total:m95_90, partial:m95_107
-# 95| r95_109(glval) = FunctionAddress[coroutine_handle] :
-# 95| r95_110(glval>) = VariableAddress :
-# 95| r95_111(glval>) = Convert : r95_110
-# 95| r95_112(coroutine_handle &) = CopyValue : r95_111
-# 95| v95_113(void) = Call[coroutine_handle] : func:r95_109, this:r95_106, 0:r95_112
-# 95| m95_114(unknown) = ^CallSideEffect : ~m95_108
-# 95| m95_115(unknown) = Chi : total:m95_108, partial:m95_114
-# 95| v95_116(void) = ^BufferReadSideEffect[0] : &:r95_112, ~m95_115
-# 95| m95_117(coroutine_handle) = ^IndirectMayWriteSideEffect[-1] : &:r95_106
-# 95| m95_118(unknown) = Chi : total:m95_115, partial:m95_117
-# 95| r95_119(coroutine_handle) = Load[#temp95:20] : &:r95_106, ~m95_118
-# 95| v95_120(void) = Call[await_suspend] : func:r95_105, this:r0_39, 0:r95_119
-# 95| m95_121(unknown) = ^CallSideEffect : ~m95_118
-# 95| m95_122(unknown) = Chi : total:m95_118, partial:m95_121
-#-----| v0_40(void) = ^IndirectReadSideEffect[-1] : &:r0_39, ~m95_122
+# 95| r95_103(suspend_always *) = CopyValue : r95_83
+# 95| r95_104(glval) = CopyValue : r95_103
+#-----| r0_38(glval) = Convert : r95_104
+# 95| r95_105(glval) = FunctionAddress[await_suspend] :
+# 95| r95_106(glval>) = VariableAddress[#temp95:20] :
+# 95| m95_107(coroutine_handle) = Uninitialized[#temp95:20] : &:r95_106
+# 95| m95_108(unknown) = Chi : total:m95_90, partial:m95_107
+# 95| r95_109(glval) = FunctionAddress[coroutine_handle] :
+# 95| r95_110(glval>) = VariableAddress[(unnamed local variable)] :
+# 95| r95_111(glval>) = Convert : r95_110
+# 95| r95_112(coroutine_handle &) = CopyValue : r95_111
+# 95| v95_113(void) = Call[coroutine_handle] : func:r95_109, this:r95_106, 0:r95_112
+# 95| m95_114(unknown) = ^CallSideEffect : ~m95_108
+# 95| m95_115(unknown) = Chi : total:m95_108, partial:m95_114
+# 95| v95_116(void) = ^BufferReadSideEffect[0] : &:r95_112, ~m95_115
+# 95| m95_117(coroutine_handle