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Fixed oob error code

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master
Apoorva Ranade 3 years ago
parent 23a19c27f8
commit 59a7fceb9c
1 changed files with 18 additions and 14 deletions
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32
src/main/java/chocopy/pa3/CodeGenImpl.java
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@ -264,7 +264,7 @@ public class CodeGenImpl extends CodeGenBase
public Register analyze(CallExpr node) { public Register analyze(CallExpr node) {
System.out.println("Inside CallExpr: " + node.function.name); System.out.println("Inside CallExpr: " + node.function.name);
backend.emitLW(T6, FP, 0, "Inside CallExpr: " + node.function.name); //ackend.emitLW(T6, FP, 0, "Inside CallExpr: " + node.function.name);
SymbolInfo Ty = sym.get(node.function.name); SymbolInfo Ty = sym.get(node.function.name);
if(Ty instanceof ClassInfo){ if(Ty instanceof ClassInfo){
@ -366,7 +366,7 @@ public class CodeGenImpl extends CodeGenBase
public Register analyze(MethodCallExpr node) { public Register analyze(MethodCallExpr node) {
System.out.println("Inside MethodCallExpr: " + node.method.member.name); System.out.println("Inside MethodCallExpr: " + node.method.member.name);
backend.emitLW(T6, FP, 0, "Inside MethodCallExpr: " + node.method.member.name); // backend.emitLW(T6, FP, 0, "Inside MethodCallExpr: " + node.method.member.name);
Register obj = node.method.object.dispatch(this); Register obj = node.method.object.dispatch(this);
int n_args = node.args.size(); int n_args = node.args.size();
@ -402,7 +402,7 @@ public class CodeGenImpl extends CodeGenBase
@Override @Override
public Register analyze(ReturnStmt stmt) { public Register analyze(ReturnStmt stmt) {
System.out.println("Inside ReturnStmt: "); System.out.println("Inside ReturnStmt: ");
backend.emitLW(T6, FP, 0, "Inside ReturnStmt: "); // backend.emitLW(T6, FP, 0, "Inside ReturnStmt: ");
Expr expr = stmt.value; Expr expr = stmt.value;
if (expr == null) { if (expr == null) {
backend.emitMV(A0, ZERO, "Return None"); backend.emitMV(A0, ZERO, "Return None");
@ -423,7 +423,7 @@ public class CodeGenImpl extends CodeGenBase
public Register analyze(NoneLiteral node) public Register analyze(NoneLiteral node)
{ {
System.out.println("Inside NoneLiteral: "); System.out.println("Inside NoneLiteral: ");
backend.emitLW(T6, FP, 0, "Inside NoneLiteral: "); // backend.emitLW(T6, FP, 0, "Inside NoneLiteral: ");
backend.emitMV(Register.A0, Register.ZERO, "Load none"); backend.emitMV(Register.A0, Register.ZERO, "Load none");
return Register.A0; return Register.A0;
} }
@ -432,7 +432,7 @@ public class CodeGenImpl extends CodeGenBase
public Register analyze(StringLiteral node) public Register analyze(StringLiteral node)
{ {
System.out.println("Inside StringLiteral: "); System.out.println("Inside StringLiteral: ");
backend.emitLW(T6, FP, 0, "Inside StringLiteral: "); //backend.emitLW(T6, FP, 0, "Inside StringLiteral: ");
Label l = constants.getStrConstant(node.value); Label l = constants.getStrConstant(node.value);
backend.emitLA(Register.A0, l, "Load string literal"); backend.emitLA(Register.A0, l, "Load string literal");
return Register.A0; return Register.A0;
@ -442,7 +442,7 @@ public class CodeGenImpl extends CodeGenBase
public Register analyze(BooleanLiteral node) public Register analyze(BooleanLiteral node)
{ {
System.out.println("Inside BooleanLiteral: "); System.out.println("Inside BooleanLiteral: ");
backend.emitLW(T6, FP, 0, "Inside BooleanLiteral: "); // backend.emitLW(T6, FP, 0, "Inside BooleanLiteral: ");
if(node.value==true) if(node.value==true)
backend.emitLI(Register.A0, 1, "Load boolean literal: true "); backend.emitLI(Register.A0, 1, "Load boolean literal: true ");
else else
@ -521,7 +521,7 @@ public class CodeGenImpl extends CodeGenBase
public Register analyze(AssignStmt node) public Register analyze(AssignStmt node)
{ {
System.out.println("Inside AssignStmt: "); System.out.println("Inside AssignStmt: ");
backend.emitLW(T6, FP, 0, "Inside AssignStmt: "); //backend.emitLW(T6, FP, 0, "Inside AssignStmt: ");
//Type t = node.value.getInferredType(); //Type t = node.value.getInferredType();
// if(t.isSpecialType() || t.isListType()) // if(t.isSpecialType() || t.isListType())
//{ //{
@ -556,7 +556,7 @@ public class CodeGenImpl extends CodeGenBase
public Register analyze(ExprStmt node) public Register analyze(ExprStmt node)
{ {
System.out.println("Inside ExprStmt: "); System.out.println("Inside ExprStmt: ");
backend.emitLW(T6, FP, 0, "Inside ExprStmt: "); // backend.emitLW(T6, FP, 0, "Inside ExprStmt: ");
node.expr.dispatch(this); node.expr.dispatch(this);
return null; return null;
} }
@ -667,7 +667,7 @@ public class CodeGenImpl extends CodeGenBase
{ {
System.out.println("Inside BinaryExpr: "); System.out.println("Inside BinaryExpr: ");
String operator = node.operator; String operator = node.operator;
backend.emitLW(T6, FP, 0, "Inside BinaryExpr: "); //backend.emitLW(T6, FP, 0, "Inside BinaryExpr: ");
if(node.left.getInferredType().equals(Type.INT_TYPE) && node.right.getInferredType().equals(Type.INT_TYPE)) if(node.left.getInferredType().equals(Type.INT_TYPE) && node.right.getInferredType().equals(Type.INT_TYPE))
{ {
@ -883,8 +883,9 @@ public class CodeGenImpl extends CodeGenBase
if(node.operator.equals("-") && node.getInferredType().equals(Type.INT_TYPE)) if(node.operator.equals("-") && node.getInferredType().equals(Type.INT_TYPE))
{ {
node.operand.dispatch(this); node.operand.dispatch(this);
backend.emitLI(Register.T0, -1, "Set value of Register T0 to -1"); //backend.emitLI(Register.T0, -1, "Set value of Register T0 to -1");
backend.emitMUL(Register.A0, Register.A0, Register.T0, "Multiply by -1"); //backend.emitMUL(Register.A0, Register.A0, Register.T0, "Multiply by -1");
backend.emitSUB(Register.A0, Register.ZERO, Register.A0, "Unary negation");
} }
else if(node.operator.equals("not") && node.getInferredType().equals(Type.BOOL_TYPE)) else if(node.operator.equals("not") && node.getInferredType().equals(Type.BOOL_TYPE))
{ {
@ -898,7 +899,7 @@ public class CodeGenImpl extends CodeGenBase
@Override @Override
public Register analyze(Identifier node) public Register analyze(Identifier node)
{ {
backend.emitLW(T6, FP, 0, "Inside Identifier: "); //backend.emitLW(T6, FP, 0, "Inside Identifier: ");
Identifier targetID = (Identifier)node; Identifier targetID = (Identifier)node;
Object var = getVar(targetID); Object var = getVar(targetID);
@ -970,7 +971,7 @@ public class CodeGenImpl extends CodeGenBase
@Override @Override
public Register analyze(IntegerLiteral node) { public Register analyze(IntegerLiteral node) {
System.out.println("Inside IntegerLiteral: " + node.value); System.out.println("Inside IntegerLiteral: " + node.value);
backend.emitLW(T6, FP, 0, "Inside IntegerLiteral: " + node.value); //backend.emitLW(T6, FP, 0, "Inside IntegerLiteral: " + node.value);
backend.emitLI(A0, node.value, "Load integer literal " + node.value); backend.emitLI(A0, node.value, "Load integer literal " + node.value);
return A0; return A0;
@ -1189,7 +1190,10 @@ public class CodeGenImpl extends CodeGenBase
/** Emit an error routine labeled ERRLABEL that aborts with message MSG. */ /** Emit an error routine labeled ERRLABEL that aborts with message MSG. */
private void emitErrorFunc(Label errLabel, String msg) { private void emitErrorFunc(Label errLabel, String msg) {
backend.emitGlobalLabel(errLabel); backend.emitGlobalLabel(errLabel);
backend.emitLI(A0, ERROR_NONE, "Exit code for: " + msg); if(errLabel==errorOob)
backend.emitLI(A0, ERROR_OOB, "Exit code for: " + msg);
else
backend.emitLI(A0, ERROR_NONE, "Exit code for: " + msg);
backend.emitLA(A1, constants.getStrConstant(msg), "Load error message as str"); backend.emitLA(A1, constants.getStrConstant(msg), "Load error message as str");
backend.emitADDI( backend.emitADDI(
A1, A1, getAttrOffset(strClass, "__str__"), "Load address of attribute __str__"); A1, A1, getAttrOffset(strClass, "__str__"), "Load address of attribute __str__");

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