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debug.c
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debug.c
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void print_string_char(int c) {
if (c == 7) putstr("\\a");
else if (c == 8) putstr("\\b");
else if (c == 12) putstr("\\f");
else if (c == 10) putstr("\\n");
else if (c == 13) putstr("\\r");
else if (c == 9) putstr("\\t");
else if (c == 11) putstr("\\v");
else if (c == '\\' || c == '\'' || c == '"') { putchar('\\'); putchar(c); }
else if (c < 32 || c > 126) { putchar('\\'); putint(c >> 6); putint((c >> 3) & 7); putint(c & 7); }
else putchar(c);
}
void print_tok_string(int string_probe) {
char *string_start = STRING_BUF(string_probe);
char *string_end = string_start + STRING_LEN(string_probe);
while (string_start < string_end) {
print_string_char(*string_start);
string_start += 1;
}
}
int print_tok_indent = 0;
void print_tok(int tok, int val) {
int i;
if (tok == AUTO_KW) putstr("auto");
else if (tok == BREAK_KW) putstr("break");
else if (tok == CASE_KW) putstr("case");
else if (tok == CHAR_KW) putstr("char");
else if (tok == CONST_KW) putstr("const");
else if (tok == CONTINUE_KW) putstr("continue");
else if (tok == DEFAULT_KW) putstr("default");
else if (tok == DO_KW) putstr("do");
else if (tok == DOUBLE_KW) putstr("double");
else if (tok == ELSE_KW) putstr("else");
else if (tok == ENUM_KW) putstr("enum");
else if (tok == EXTERN_KW) putstr("extern");
else if (tok == FLOAT_KW) putstr("float");
else if (tok == FOR_KW) putstr("for");
else if (tok == GOTO_KW) putstr("goto");
else if (tok == IF_KW) putstr("if");
else if (tok == INT_KW) putstr("int");
else if (tok == LONG_KW) putstr("long");
else if (tok == REGISTER_KW) putstr("register");
else if (tok == RETURN_KW) putstr("return");
else if (tok == SHORT_KW) putstr("short");
else if (tok == SIGNED_KW) putstr("signed");
else if (tok == SIZEOF_KW) putstr("sizeof");
else if (tok == STATIC_KW) putstr("static");
else if (tok == STRUCT_KW) putstr("struct");
else if (tok == SWITCH_KW) putstr("switch");
else if (tok == TYPEDEF_KW) putstr("typedef");
else if (tok == UNION_KW) putstr("union");
else if (tok == UNSIGNED_KW) putstr("unsigned");
else if (tok == VOID_KW) putstr("void");
else if (tok == VOLATILE_KW) putstr("volatile");
else if (tok == WHILE_KW) putstr("while");
else if (tok == AMP_AMP) putstr("&&");
else if (tok == AMP_EQ) putstr("&=");
else if (tok == ARROW) putstr("->");
else if (tok == BAR_BAR) putstr("||");
else if (tok == BAR_EQ) putstr("|=");
else if (tok == CARET_EQ) putstr("^=");
else if (tok == EQ_EQ) putstr("==");
else if (tok == GT_EQ) putstr(">=");
else if (tok == LSHIFT_EQ) putstr("<<=");
else if (tok == LSHIFT) putstr("<<");
else if (tok == LT_EQ) putstr("<=");
else if (tok == MINUS_EQ) putstr(" -= "); // Adding spaces around -= so - is not interpreted as an option to printf
else if (tok == MINUS_MINUS) putstr("--");
else if (tok == EXCL_EQ) putstr("!=");
else if (tok == PERCENT_EQ) putstr("%=");
else if (tok == PLUS_EQ) putstr("+=");
else if (tok == RSHIFT_EQ) putstr(">>=");
else if (tok == RSHIFT) putstr(">>");
else if (tok == SLASH_EQ) putstr("/=");
else if (tok == STAR_EQ) putstr("*=");
else if (tok == HASH_HASH) putstr("##");
else if (tok == PLUS_PLUS_PRE) putstr("++");
else if (tok == MINUS_MINUS_PRE) putstr(" -- "); // Adding spaces around -= so - is not interpreted as an option to printf
else if (tok == PLUS_PLUS_POST) putstr("++");
else if (tok == MINUS_MINUS_POST) putstr(" -- "); // Adding spaces around -= so - is not interpreted as an option to printf
else if (tok == IDENTIFIER) {
putstr(string_pool + heap[val+1]);
} else if (tok == MACRO) {
putchar('[');
putstr(string_pool + heap[val+1]);
putchar(']');
} else if (tok == INTEGER) {
putint(-val);
} else if (tok == CHARACTER) {
putchar('\'');
print_string_char(val);
putchar('\'');
} else if (tok == STRING) {
putchar('"');
print_tok_string(val);
putchar('"');
} else if (tok == MACRO_ARG) {
putstr("ARG["); putint(val); putstr("]");
} else if (tok == '{') {
putchar(tok);
print_tok_indent += 2;
} else if (tok == '}') {
print_tok_indent -= 2;
putchar(tok);
} else if (tok == '\n') {
putchar(tok);
for (i = 0; i < print_tok_indent; i++) putchar(' ');
} else {
putchar(tok);
}
if (tok != '\n') putchar(' ');
}
// Show the type of a token.
// This is used for showing more helpful error messages.
void print_tok_type(int tok) {
if (tok == AUTO_KW) putstr("auto");
else if (tok == BREAK_KW) putstr("break");
else if (tok == CASE_KW) putstr("case");
else if (tok == CHAR_KW) putstr("char");
else if (tok == CONST_KW) putstr("const");
else if (tok == CONTINUE_KW) putstr("continue");
else if (tok == DEFAULT_KW) putstr("default");
else if (tok == DO_KW) putstr("do");
else if (tok == DOUBLE_KW) putstr("double");
else if (tok == ELSE_KW) putstr("else");
else if (tok == ENUM_KW) putstr("enum");
else if (tok == EXTERN_KW) putstr("extern");
else if (tok == FLOAT_KW) putstr("float");
else if (tok == FOR_KW) putstr("for");
else if (tok == GOTO_KW) putstr("goto");
else if (tok == IF_KW) putstr("if");
else if (tok == INT_KW) putstr("int");
else if (tok == LONG_KW) putstr("long");
else if (tok == REGISTER_KW) putstr("register");
else if (tok == RETURN_KW) putstr("return");
else if (tok == SHORT_KW) putstr("short");
else if (tok == SIGNED_KW) putstr("signed");
else if (tok == SIZEOF_KW) putstr("sizeof");
else if (tok == STATIC_KW) putstr("static");
else if (tok == STRUCT_KW) putstr("struct");
else if (tok == SWITCH_KW) putstr("switch");
else if (tok == TYPEDEF_KW) putstr("typedef");
else if (tok == UNION_KW) putstr("union");
else if (tok == UNSIGNED_KW) putstr("unsigned");
else if (tok == VOID_KW) putstr("void");
else if (tok == VOLATILE_KW) putstr("volatile");
else if (tok == WHILE_KW) putstr("while");
else if (tok == AMP_AMP) putstr("&&");
else if (tok == AMP_EQ) putstr("&=");
else if (tok == ARROW) putstr("->");
else if (tok == BAR_BAR) putstr("||");
else if (tok == BAR_EQ) putstr("|=");
else if (tok == CARET_EQ) putstr("^=");
else if (tok == EQ_EQ) putstr("==");
else if (tok == GT_EQ) putstr(">=");
else if (tok == LSHIFT_EQ) putstr("<<=");
else if (tok == LSHIFT) putstr("<<");
else if (tok == LT_EQ) putstr("<=");
else if (tok == MINUS_EQ) putstr(" -= "); // Adding spaces around -= so - is not interpreted as an option to printf
else if (tok == MINUS_MINUS) putstr("--");
else if (tok == EXCL_EQ) putstr("!=");
else if (tok == PERCENT_EQ) putstr("%=");
else if (tok == PLUS_EQ) putstr("+=");
else if (tok == RSHIFT_EQ) putstr(">>=");
else if (tok == RSHIFT) putstr(">>");
else if (tok == SLASH_EQ) putstr("/=");
else if (tok == STAR_EQ) putstr("*=");
else if (tok == HASH_HASH) putstr("##");
else if (tok == PLUS_PLUS_PRE) putstr("++");
else if (tok == MINUS_MINUS_PRE) putstr(" -- "); // Adding spaces around -= so - is not interpreted as an option to printf
else if (tok == PLUS_PLUS_POST) putstr("++");
else if (tok == MINUS_MINUS_POST) putstr(" -- "); // Adding spaces around -= so - is not interpreted as an option to printf
else if (tok == IDENTIFIER) putstr("identifier");
else if (tok == INTEGER) putstr("integer");
else if (tok == CHARACTER) putstr("character");
else if (tok == STRING) putstr("string");
else if (tok == MACRO) putstr("macro");
else if (tok == MACRO_ARG) putstr("macro argument");
else if (tok == EOF) putstr("end of file");
else if (tok == '\n') putstr("newline");
else { putchar('\''); putchar(tok); putchar('\''); }
}
void show_ast(char* name, ast obj) {
int i;
int nb_children = get_nb_children(obj);
if (nb_children == 0) nb_children = 1; // Account for value of ast nodes with no child
for (i = 0; i < nb_children + 1; i++) {
printf("%s[%d] = %d\n", name, i, heap[obj + i]);
}
}
// void show_struct(ast struct_type) {
// ast members = get_child(canonicalize_type(struct_type), 2);
// char* name = string_pool + get_val(get_val(get_child(struct_type, 1)));
// printf("##### Struct %s #####\n", name);
// printf("sizeof(%s) = %d\n", name, struct_size(struct_type));
// while (get_op(members) == ',') {
// printf("%s = obj[%d]\n", string_pool + get_val(get_val(get_child(members, 0))), struct_member_offset(struct_type, get_child(members, 0)));
// members = get_child(members, 2);
// }
// }