feat: add temp.

Author: Shylock-Hg

tigerc/src/frame.rs

@@ -20,14 +20,14 @@ pub struct Variable {
 
 pub trait Frame {
     fn new(name: Symbol, parameters: IndexMap<ir::LowerIdent, Variable>) -> Self;
-    fn name(&self) -> Symbol;
+    fn name(&self) -> &ir::LowerIdent;
     fn allocate_local(&mut self, symbol: ir::LowerIdent, var: Variable);
 }
 
 // frame of a function
 struct FrameAmd64 {
     // function name
-    name: Symbol,
+    name: ir::LowerIdent,
     // parameters
     parameters: IndexMap<ir::LowerIdent, Variable>,
     // local variables
@@ -37,14 +37,14 @@ struct FrameAmd64 {
 impl Frame for FrameAmd64 {
     fn new(name: Symbol, parameters: IndexMap<ir::LowerIdent, Variable>) -> Self {
         FrameAmd64 {
-            name,
+            name: ir::LowerIdent::new(name),
             parameters,
             locals: IndexMap::new(),
         }
     }
 
-    fn name(&self) -> Symbol {
-        self.name
+    fn name(&self) -> &ir::LowerIdent {
+        &self.name
     }
 
     fn allocate_local(&mut self, symbol: ir::LowerIdent, var: Variable) {

tigerc/src/lib.rs

@@ -6,6 +6,7 @@ pub mod ident_pool;
 pub mod ir;
 pub mod parser;
 pub mod symbol_table;
+pub mod temp;
 pub mod tokenizer;
 pub mod type_ast;
 pub mod type_inference;

tigerc/src/temp.rs

@@ -0,0 +1,9 @@
+use crate::ir::LowerIdent;
+
+// for variable
+#[derive(Debug, PartialEq, Eq)]
+pub struct Temp(pub LowerIdent);
+
+// for function
+#[derive(Debug, PartialEq, Eq)]
+pub struct Label(pub LowerIdent);