feat: add anonymous symbol.

Shylock-Hg · Jan 30, 2025 · f7e37ed · f7e37ed
1 parent 72143b7
commit f7e37ed
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/tigerc/src/ident_pool.rs b/tigerc/src/ident_pool.rs
@@ -26,6 +26,8 @@ symbols! {
         TOK_LET: "let",
         TOK_IN: "in",
         TOK_END: "end",
+        // use for inner symbol
+        REVERSED_ANONYMOUS: "__anonymous",
     }
 }
 

diff --git a/tigerc/src/ir.rs b/tigerc/src/ir.rs
@@ -1,6 +1,6 @@
 use std::hash::Hash;
 
-use crate::ident_pool::Symbol;
+use crate::ident_pool::{kw, Symbol};
 use crate::temp::{Label, Temp};
 
 // Identify different symbol with same name
@@ -24,6 +24,10 @@ impl LowerIdent {
             },
         }
     }
+
+    pub fn new_anonymous() -> LowerIdent {
+        LowerIdent::new(kw::REVERSED_ANONYMOUS)
+    }
 }
 
 impl PartialEq for LowerIdent {