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Added operators on Strings

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This commit is contained in:
Apoorva Ranade
2021-05-04 15:34:38 +05:30
parent 1952bb2d38
commit 4fa4a92e1f
1 changed files with 17 additions and 1 deletions
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src/main/java/chocopy/pa3/CodeGenImpl.java
+17 -1
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@@ -739,9 +739,25 @@ public class CodeGenImpl extends CodeGenBase
sp_off -= 2; sp_off -= 2;
backend.emitADDI(SP, FP, -sp_off*wordSize, "restore sp"); backend.emitADDI(SP, FP, -sp_off*wordSize, "restore sp");
} }
if(operator.equals("!="))
{
incSp(2);
backend.emitSW(node.left.dispatch(this), FP, (1 - sp_off) *wordSize, "Push argument 0 from last.");
backend.emitSW(node.right.dispatch(this), FP, ( - sp_off) *wordSize, "Push argument 1 from last.");
backend.emitADDI(SP, FP, -sp_off * wordSize, "Set SP to last argument.");
backend.emitJAL(strneqlLabel, "Invoke method:strneql");
sp_off -= 2;
backend.emitADDI(SP, FP, -sp_off*wordSize, "restore sp");
}
else if(operator.equals("+")) else if(operator.equals("+"))
{ {
incSp(2);
backend.emitSW(node.left.dispatch(this), FP, (1 - sp_off) *wordSize, "Push argument 0 from last.");
backend.emitSW(node.right.dispatch(this), FP, ( - sp_off) *wordSize, "Push argument 1 from last.");
backend.emitADDI(SP, FP, -sp_off * wordSize, "Set SP to last argument.");
backend.emitJAL(concatLabel, "Invoke method:concat");
sp_off -= 2;
backend.emitADDI(SP, FP, -sp_off*wordSize, "restore sp");
} }
else else
backend.emitJAL(errorNI, "Operator not implemented for String operands"); backend.emitJAL(errorNI, "Operator not implemented for String operands");