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Improvements to auto-impl properties

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This commit is contained in:
Brian Fiete 2022-03-01 09:49:02 -08:00
parent 36e0a3a375
commit 06f4eb9576
8 changed files with 113 additions and 61 deletions
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3
IDEHelper/Compiler/BfAst.h
View file

@ -569,6 +569,7 @@ enum BfTypedValueKind
{
BfTypedValueKind_Addr,
BfTypedValueKind_CopyOnMutateAddr,
BfTypedValueKind_CopyOnMutateAddr_Derived,
BfTypedValueKind_ReadOnlyAddr,
BfTypedValueKind_TempAddr,
BfTypedValueKind_RestrictedTempAddr,
@ -688,7 +689,7 @@ public:
bool IsCopyOnMutate() const
{
return (mKind == BfTypedValueKind_CopyOnMutateAddr);
return (mKind == BfTypedValueKind_CopyOnMutateAddr) || (mKind == BfTypedValueKind_CopyOnMutateAddr_Derived);
}
bool IsReadOnly() const

62
IDEHelper/Compiler/BfExprEvaluator.cpp
View file

@ -4591,22 +4591,29 @@ BfTypedValue BfExprEvaluator::LoadProperty(BfAstNode* targetSrc, BfTypedValue ta
{
bool needsCopy = true;
if (setter == NULL)
if (BfNodeIsA<BfRefTypeRef>(prop->mTypeRef))
{
if (((mModule->mCurMethodInstance->mMethodDef->mMethodType == BfMethodType_Ctor)) &&
(target.mType == mModule->mCurTypeInstance))
{
// Allow writing inside ctor
}
else
{
result.MakeReadOnly();
needsCopy = false;
}
// Allow full ref
}
else
{
if (setter == NULL)
{
if (((mModule->mCurMethodInstance->mMethodDef->mMethodType == BfMethodType_Ctor)) &&
(target.mType == mModule->mCurTypeInstance))
{
// Allow writing inside ctor
}
else
{
result.MakeReadOnly();
needsCopy = false;
}
}
if (result.mKind == BfTypedValueKind_Addr)
result.mKind = BfTypedValueKind_CopyOnMutateAddr;
if (result.mKind == BfTypedValueKind_Addr)
result.mKind = BfTypedValueKind_CopyOnMutateAddr;
}
mPropDef = NULL;
mPropSrc = NULL;
@ -4890,10 +4897,7 @@ BfTypedValue BfExprEvaluator::LoadField(BfAstNode* targetSrc, BfTypedValue targe
mModule->mBfIRBuilder->CreateStore(target.mValue, elementAddr);
target = BfTypedValue(allocaInst, primStructType, true);
}
if (target.IsCopyOnMutate())
target = mModule->CopyValue(target);
BfTypedValue targetValue;
if ((target.mType != typeInstance) && (!target.IsSplat()))
{
@ -4972,6 +4976,9 @@ BfTypedValue BfExprEvaluator::LoadField(BfAstNode* targetSrc, BfTypedValue targe
{
if ((wantsReadOnly) && (retVal.IsAddr()) && (!retVal.IsReadOnly()))
retVal.mKind = BfTypedValueKind_ReadOnlyAddr;
else if ((target.IsCopyOnMutate()) && (retVal.IsAddr()))
retVal.mKind = BfTypedValueKind_CopyOnMutateAddr_Derived;
mIsHeapReference = true;
}
@ -6803,6 +6810,9 @@ void BfExprEvaluator::PushThis(BfAstNode* targetSrc, BfTypedValue argVal, BfMeth
if (((argVal.mType->IsComposite()) || (argVal.mType->IsTypedPrimitive())))
{
if (argVal.IsCopyOnMutate())
argVal = mModule->CopyValue(argVal);
if ((argVal.IsReadOnly()) || (!argVal.IsAddr()))
{
if (!skipMutCheck)
@ -18297,11 +18307,8 @@ bool BfExprEvaluator::CheckIsBase(BfAstNode* checkNode)
return true;
}
bool BfExprEvaluator::CheckModifyResult(BfTypedValue typedVal, BfAstNode* refNode, const char* modifyType, bool onlyNeedsMut, bool emitWarning, bool skipCopyOnMutate)
{
if ((!skipCopyOnMutate) && (typedVal.IsCopyOnMutate()))
typedVal = mModule->CopyValue(typedVal);
bool BfExprEvaluator::CheckModifyResult(BfTypedValue& typedVal, BfAstNode* refNode, const char* modifyType, bool onlyNeedsMut, bool emitWarning, bool skipCopyOnMutate)
{
BfLocalVariable* localVar = NULL;
bool isCapturedLocal = false;
if (mResultLocalVar != NULL)
@ -18336,6 +18343,9 @@ bool BfExprEvaluator::CheckModifyResult(BfTypedValue typedVal, BfAstNode* refNod
}
bool canModify = typedVal.CanModify();
if (((typedVal.mKind == BfTypedValueKind_TempAddr) || (typedVal.mKind == BfTypedValueKind_CopyOnMutateAddr_Derived)) &&
(strcmp(modifyType, "assign to") == 0))
mModule->Warn(0, "Assigning to temporary copy of a value. Consider using 'ref' in value source declaration.", refNode);
auto _Fail = [&](const StringImpl& error, BfAstNode* refNode)
{
@ -18497,6 +18507,9 @@ bool BfExprEvaluator::CheckModifyResult(BfTypedValue typedVal, BfAstNode* refNod
return false;
}
if ((!skipCopyOnMutate) && (typedVal.IsCopyOnMutate()))
typedVal = mModule->CopyValue(typedVal);
return mModule->CheckModifyValue(typedVal, refNode, modifyType);
}
@ -19250,6 +19263,11 @@ void BfExprEvaluator::PerformAssignment(BfAssignmentExpression* assignExpr, bool
return;
}
if (ptr.mKind == BfTypedValueKind_CopyOnMutateAddr)
ptr.mKind = BfTypedValueKind_Addr;
else if (ptr.IsCopyOnMutate())
ptr = mModule->CopyValue(ptr);
BF_ASSERT(convVal);
if ((convVal) && (convVal.mType->IsNull()) && (ptr.mType->IsNullable()))
{

2
IDEHelper/Compiler/BfExprEvaluator.h
View file

@ -449,7 +449,7 @@ public:
void MarkResultAssigned();
void MakeResultAsValue();
bool CheckIsBase(BfAstNode* checkNode);
bool CheckModifyResult(BfTypedValue typeValue, BfAstNode* refNode, const char* modifyType, bool onlyNeedsMut = false, bool emitWarning = false, bool skipCopyOnMutate = false);
bool CheckModifyResult(BfTypedValue& typeValue, BfAstNode* refNode, const char* modifyType, bool onlyNeedsMut = false, bool emitWarning = false, bool skipCopyOnMutate = false);
bool CheckGenericCtor(BfGenericParamType* genericParamType, BfResolvedArgs& argValues, BfAstNode* targetSrc);
BfTypedValue LoadProperty(BfAstNode* targetSrc, BfTypedValue target, BfTypeInstance* typeInstance, BfPropertyDef* prop, BfLookupFieldFlags flags, BfCheckedKind checkedKind, bool isInline);
BfTypedValue LoadField(BfAstNode* targetSrc, BfTypedValue target, BfTypeInstance* typeInstance, BfFieldDef* fieldDef, BfLookupFieldFlags flags);

11
IDEHelper/Compiler/BfModule.cpp
View file

@ -20710,6 +20710,9 @@ void BfModule::ProcessMethod(BfMethodInstance* methodInstance, bool isInlineDup,
}
else if (methodDef->mMethodType == BfMethodType_PropertyGetter)
{
if ((methodInstance->mReturnType->IsRef()) && (!methodDef->mIsMutating))
Fail("Auto-implemented ref property getters must declare 'mut'", methodInstance->mMethodDef->GetRefNode());
if (methodInstance->mReturnType->IsValuelessType())
{
mBfIRBuilder->CreateRetVoid();
@ -20736,8 +20739,14 @@ void BfModule::ProcessMethod(BfMethodInstance* methodInstance, bool isInlineDup,
lookupValue = BfTypedValue(mBfIRBuilder->CreateInBoundsGEP(GetThis().mValue, 0, fieldInstance->mDataIdx), fieldInstance->mResolvedType, true);
else
lookupValue = ExtractValue(GetThis(), fieldInstance, fieldInstance->mDataIdx);
if (!methodInstance->mReturnType->IsRef())
if (methodInstance->mReturnType->IsRef())
{
if ((!lookupValue.IsAddr()) && (!lookupValue.mType->IsValuelessType()))
lookupValue = MakeAddressable(lookupValue);
}
else
lookupValue = LoadOrAggregateValue(lookupValue);
CreateReturn(lookupValue.mValue);
EmitLifetimeEnds(&mCurMethodState->mHeadScope);
}