Pui Yan Chloe Sham · 593233be · 593233be · 593233be
--- a/AstBuilding.py
+++ b/AstBuilding.py

 ####################################################
 # Preparation before code Gen:
-# 1. Calculating the size of the object from each class 
+# 1. Calculating the size of the object from each class
 #    (also simultaneosly creating fieldOffset because fieldOffset table is required to generate size)
 def codeGenPrep(ASTs):
+    interM = []
    for t in ASTs:
        classInterNode = t[1].typeDcl
        if classInterNode and classInterNode.__class__.__name__ == "ClassNode":
            classInterNode.populateSizeAndFieldOffset()
+        else: # interfaceNode, get their methods to prep for SIT
+            interM += classInterNode.method
--- a/TypeNodes.py
+++ b/TypeNodes.py
                self.methodOffset[(method.name, method.paramTypes)] = lastMethodOffset
                self.data += pLabel(name=self.name + "_" + method.name + "_" + method.paramTypes, type="vtable")
                self.data += p(instruction="dd", arg1=64) # just declaring a memory segment with a random number
-        
-        # Adding inherited method to the methodDict 
+
+        # Adding inherited method to the methodDict
        for i in self.inherits:
            if isinstance(i, MethodNode):
                key = (i.name, i.paramTypes)
                if not key in methodDict:
                    methodDict[(i.name, i.paramTypes)] = i

-        # print(self.methodOffset)
+        # Layout SIT
+        self.code += pLabel("SIT_" + self.name, "local")
--- a/TypeNodes.py
+++ b/TypeNodes.py
                self.data += p(instruction="dd", arg1=64) # just declaring a memory segment with a random number
-        
-        # Adding inherited method to the methodDict 
+
+        # Adding inherited method to the methodDict
        for i in self.inherits:
            if isinstance(i, MethodNode):
                key = (i.name, i.paramTypes)
                if not key in methodDict:
                    methodDict[(i.name, i.paramTypes)] = i

-        # print(self.methodOffset)
+        # Layout SIT
+        self.code += pLabel("SIT_" + self.name, "local")
+        for i in range(self.SITsize):
+            self.code += pLabel("SIT_" + i, "local")