Merge pull request #993 from candy-lang/660-format-cst-rcst-in-candy-…

…debug

Implement ToRichIr for Cst

.gitignore

@@ -10,6 +10,9 @@ callgrind.out.*
 # ANTLR
 .antlr/
 
+# direnv
+.direnv/
+
 # Rust
 target
 

compiler/frontend/src/cst/id.rs

@@ -1,13 +1,28 @@
-use crate::impl_countable_id;
-use std::fmt::{self, Display, Formatter};
+use crate::{
+    impl_countable_id,
+    rich_ir::{RichIrBuilder, ToRichIr, TokenType},
+};
+use enumset::EnumSet;
+use std::fmt::{self, Debug, Display, Formatter};
 
-#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
+#[derive(Clone, Copy, Eq, Hash, Ord, PartialEq, PartialOrd)]
 pub struct Id(pub usize);
 
 impl_countable_id!(Id);
 
+impl Debug for Id {
+    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+        write!(f, "${}", self.0)
+    }
+}
 impl Display for Id {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        write!(f, "CstId({})", self.0)
+        write!(f, "${}", self.0)
+    }
+}
+impl ToRichIr for Id {
+    fn build_rich_ir(&self, builder: &mut RichIrBuilder) {
+        let range = builder.push(self.to_string(), TokenType::Variable, EnumSet::empty());
+        builder.push_reference(*self, range);
     }
 }