From 00945be8de227e2a6f56819e5864b58559e37ee6 Mon Sep 17 00:00:00 2001
From: David Li <li.davidm96@gmail.com>
Date: Tue, 7 Nov 2017 19:09:42 -0500
Subject: Parameterize translation on frame type

---
 src/semantic/translate.rs | 36 ++++++++++++++++++++++++++++++------
 1 file changed, 30 insertions(+), 6 deletions(-)

(limited to 'src/semantic/translate.rs')

diff --git a/src/semantic/translate.rs b/src/semantic/translate.rs
index cc5aec0..179eb62 100644
--- a/src/semantic/translate.rs
+++ b/src/semantic/translate.rs
@@ -1,4 +1,6 @@
+use super::frame;
 use super::ir;
+use super::temp;
 
 #[derive(Debug)]
 pub enum Expression {
@@ -6,18 +8,40 @@ pub enum Expression {
     Void(ir::Statement),
 }
 
-pub struct Translate {
-
+pub struct Translate<F> {
+    level_counter: usize,
+    _frametype: ::std::marker::PhantomData<F>,
 }
 
-pub enum Level {
+pub enum Level<'a, F>
+    where F: 'a + frame::Frame {
     Top,
-    Level,
+    Level {
+        parent: &'a Level<'a, F>,
+        frame: F,
+        unique_id: usize,
+    },
 }
 
-impl Translate {
-    pub fn new() -> Translate {
+impl<F: frame::Frame> Translate<F> {
+    pub fn new() -> Translate<F> {
         Translate {
+            level_counter: 0,
+            _frametype: ::std::marker::PhantomData,
+        }
+    }
+
+    pub fn make_level<'a>(
+        &mut self,
+        parent: &'a Level<F>,
+        name: temp::TempLabel,
+        formals: Vec<frame::Escape>) -> Level<'a, F> {
+        let id = self.level_counter;
+        self.level_counter += 1;
+        Level::Level {
+            parent: parent,
+            frame: F::new(name, formals),
+            unique_id: id,
         }
     }
 
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