Update CodeGenImpl.java

src/main/java/chocopy/pa3/CodeGenImpl.java

@@ -792,30 +792,8 @@ public class CodeGenImpl extends CodeGenBase
             @Override
             public Register analyze(IndexExpr node) 
             {
-                incSp(1);
+		//TODO: Not Implemented
-                Register listObj = node.list.dispatch(this);
+		return A0;
-                backend.emitSW(listObj, FP, -sp_off * wordSize, String.format("Push on stack slot %d", sp_off));
-                Register index = node.index.dispatch(this);
-                Register vacantReg = (index != A0) ? A0 : A1;
-
-                if (node.list.getInferredType().isListType()) {
-                    backend.emitLW(vacantReg, FP, -sp_off * wordSize, String.format("Pop stack slot %d", sp_off));
-
-                    this.d(vacantReg);
-                    return this.a(vacantReg, index, A0, false);
-                }else{
-                    this.a(0, vacantReg);
-                    Register a = a(index);
-                    Label ch = generateLocalLabel();
-                    backend.emitLW(a, vacantReg, getAttrOffset(strClass, "__len__"), "Load attribute: __len__");
-                    backend.emitBLTU(index, a, ch, "Ensure 0 <= idx < len");
-                    backend.emitJ(f, "Go to error handler");
-                    backend.emitLocalLabel(ch, "Index within bounds");
-                    this.c(index);
-                    Register a2 = this.a(false);
-                    this.a(1);
-                    return a2;
-                }
             }
   
         public Register analyze(MemberExpr node)