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fix: return the assigned value in assignments #2773

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merged 5 commits into from
Nov 8, 2023
Merged

fix: return the assigned value in assignments #2773

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3049d3c
fix: use correct valueType for compileAssignment[NFC]
HerrCai0907 Oct 17, 2023
b755426
fix: avoid use getInstance in assignment chain
HerrCai0907 Oct 17, 2023
a3fd7b3
Merge branch 'main' into 2770-assignment-chain-cause-compatibility-issue
HerrCai0907 Nov 7, 2023
1b29408
Merge remote-tracking branch 'upstream/main' into 2770-assignment-cha…
HerrCai0907 Nov 8, 2023
97262b1
fix
HerrCai0907 Nov 8, 2023
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37 changes: 20 additions & 17 deletions src/compiler.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -5703,10 +5703,11 @@ export class Compiler extends DiagnosticEmitter {
assert(targetType != Type.void);
let valueExpr = this.compileExpression(valueExpression, targetType);
let valueType = this.currentType;
if (targetType.isNullableReference && this.currentFlow.isNonnull(valueExpr, valueType)) targetType = targetType.nonNullableType;
return this.makeAssignment(
target,
this.convertExpression(valueExpr, valueType, targetType, false, valueExpression),
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This code was better before, but this is okay.

valueType,
targetType,
valueExpression,
thisExpression,
elementExpression,
Expand Down Expand Up @@ -5799,6 +5800,7 @@ export class Compiler extends DiagnosticEmitter {
return module.unreachable();
}
assert(setterInstance.signature.parameterTypes.length == 1);
assert(setterInstance.signature.returnType == Type.void);
if (propertyInstance.is(CommonFlags.Instance)) {
let thisType = assert(setterInstance.signature.thisType);
let thisExpr = this.compileExpression(
Expand All @@ -5807,28 +5809,29 @@ export class Compiler extends DiagnosticEmitter {
Constraints.ConvImplicit | Constraints.IsThis
);
if (!tee) return this.makeCallDirect(setterInstance, [ thisExpr, valueExpr ], valueExpression);
let getterInstance = assert((<Property>target).getterInstance);
assert(getterInstance.signature.thisType == thisType);
let returnType = getterInstance.signature.returnType;
let returnTypeRef = returnType.toRef();
let tempThis = flow.getTempLocal(thisType);
let tempLocal = flow.getTempLocal(valueType);
let valueTypeRef = valueType.toRef();
let ret = module.block(null, [
this.makeCallDirect(setterInstance, [
module.local_tee(tempThis.index, thisExpr, /* isManaged=*/false, thisType.toRef()), // thisType is managed but here it must be alive
valueExpr
thisExpr,
module.local_tee(tempLocal.index, valueExpr, valueType.isManaged, valueTypeRef)
], valueExpression),
this.makeCallDirect(getterInstance, [
module.local_get(tempThis.index, thisType.toRef())
], valueExpression)
], returnTypeRef);
module.local_get(tempLocal.index, valueTypeRef),
], valueTypeRef);
this.currentType = valueType;
return ret;
} else {
if (!tee) return this.makeCallDirect(setterInstance, [ valueExpr ], valueExpression);
let getterInstance = assert((<Property>target).getterInstance);
return module.block(null, [
this.makeCallDirect(setterInstance, [ valueExpr ], valueExpression),
this.makeCallDirect(getterInstance, null, valueExpression)
], getterInstance.signature.returnType.toRef());
let tempLocal = flow.getTempLocal(valueType);
let valueTypeRef = valueType.toRef();
let ret = module.block(null, [
this.makeCallDirect(setterInstance, [
module.local_tee(tempLocal.index, valueExpr, valueType.isManaged, valueTypeRef),
], valueExpression),
module.local_get(tempLocal.index, valueTypeRef),
], valueTypeRef);
this.currentType = valueType;
return ret;
}
}
case ElementKind.IndexSignature: {
Expand Down
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