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Fixed all object/class/method/attr related errors

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master
bill 3 years ago
parent 22ada8a1c1
commit 0fc854fdb0
1 changed files with 40 additions and 12 deletions
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52
src/main/java/chocopy/pa3/CodeGenImpl.java
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@ -207,17 +207,21 @@ public class CodeGenImpl extends CodeGenBase
private int sp_off;
/** Variable to store maximum possible offset depending on stack size.*/
private int max_sp;
private final Register[] registerPool = {T2,T3, T4, T5, T6, A2, A3, A4, A5, A6};
private final boolean[] registerAvilMap = {true, true, true, true, true, true, true, true, true, true};
private boolean l_value = false;
private final Register[] registerPool = {T2,T3, T4, T5, T6, A2, A3, A4, A5, A6, A7};
private final boolean[] registerAvilMap = {true, true, true, true, true, true, true, true, true, true, true};
private int getRegister(){ //return a handle of a vacant register
for(int i = 0; i < 10; ++i)
for(int i = 0; i < 11; ++i)
if(registerAvilMap[i])
{
registerAvilMap[i]=false;
return i;
}
for(int i = 0; i < 10; ++i)
for(int i = 0; i < 11; ++i)
{
System.out.println("Insufficient Registers!!!");
registerAvilMap[i] = true; //freeall;
}
return 0;
}
private void freeRegister(int handle){ //handle used to free the register
@ -292,7 +296,7 @@ public class CodeGenImpl extends CodeGenBase
incSp(1);
backend.emitSW(A0, FP, -sp_off*wordSize, "Push argument 0 from last.");
backend.emitADDI(SP, FP, sp_off*wordSize, "Set SP to last argument.");
backend.emitADDI(SP, FP, -sp_off*wordSize, "Set SP to last argument.");
backend.emitLW(A1, A0, getDispatchTableOffset(), "Load address of object's dispatch table");
backend.emitLW(A1, A1, getMethodOffset(cls, "__init__"), String.format("Load address of method: %s.__init__", cls.getClassName()));
backend.emitJALR(A1, String.format("Invoke method: %s.__init", cls.getClassName()));
@ -343,13 +347,19 @@ public class CodeGenImpl extends CodeGenBase
if (expr.getInferredType().equals(Type.INT_TYPE)) {
if ((functionId.name.equals("print")) &&(formalParamInfo.getVarType().equals(Type.OBJECT_TYPE) || formalParamInfo.getVarType().equals(Type.INT_TYPE))) {
backend.emitJAL(makeintLabel, "Box integer");
if(!(args.size() == 1 && (args.get(0) instanceof CallExpr) &&
(sym.get(((CallExpr) args.get(0)).function.name) instanceof ClassInfo)))
backend.emitJAL(makeintLabel, "Box integer");
} else {
// FIXME: passed argument does not match formal parameter
}
} else if (expr.getInferredType().equals(Type.BOOL_TYPE)) {
if ((functionId.name.equals("print"))&&(formalParamInfo.getVarType().equals(Type.OBJECT_TYPE) || formalParamInfo.getVarType().equals(Type.BOOL_TYPE))) {
backend.emitJAL(makeboolLabel, "Box boolean");
if(!(args.size() == 1 && (args.get(0) instanceof CallExpr) &&
(sym.get(((CallExpr) args.get(0)).function.name) instanceof ClassInfo)))
backend.emitJAL(makeboolLabel, "Box boolean");
}
else {
// FIXME: passed argument does not match formal parameter
@ -551,14 +561,26 @@ public class CodeGenImpl extends CodeGenBase
{
backend.emitSW(reg, Register.FP, -sp_off*wordSize, "Store value to b stored");
incSp(1);
boolean old_lvalue = l_value;
l_value = true;
Register ret = target.dispatch(this);
l_value = old_lvalue;
sp_off--;
backend.emitLW(reg, Register.FP, -sp_off*wordSize, "Load value to b stored");
backend.emitSW(reg, ret, 0, "Set list element");
Register tmp = reg;
int tmpHandle = -1;
if(ret.equals(reg))
{
tmpHandle = getRegister();
tmp = registerPool[tmpHandle];
}
backend.emitLW(tmp, Register.FP, -sp_off*wordSize, "Load value to b stored");
backend.emitSW(tmp, ret, 0, "Set list element");
if(tmpHandle >= 0)
freeRegister(tmpHandle);
}
}
//}
return reg;
return null;
}
@Override
@ -1117,13 +1139,19 @@ public class CodeGenImpl extends CodeGenBase
{
ClassInfo objectClass = (ClassInfo) globalSymbols.get(node.object.getInferredType().className());
Label label = generateLocalLabel();
boolean old_lvalue = l_value;
l_value = false;
Register obj = node.object.dispatch(this);
l_value = old_lvalue;
backend.emitBNEZ(obj, label, "Ensure not None");
backend.emitJ(errorNone, "Go to error handler");
backend.emitLocalLabel(label, "Not None");
backend.emitLW(A0, obj, getAttrOffset(objectClass, node.member.name),
String.format("Get attribute: %s.%s", objectClass.getClassName(), node.member.name));
if(l_value)
backend.emitADDI(A0, obj, getAttrOffset(objectClass, node.member.name), "get address of attr");
else
backend.emitLW(A0, obj, getAttrOffset(objectClass, node.member.name),
String.format("Get value of attribute: %s.%s", objectClass.getClassName(), node.member.name));
return A0;
}
}

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