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Make conversion operators use standard method matcher

This commit is contained in:
Brian Fiete 2022-01-17 16:14:40 -05:00
parent 15e1986a1c
commit c7d2d2e9bd
8 changed files with 280 additions and 398 deletions

View file

@ -154,7 +154,7 @@ namespace System
//
public this(int year, int month, int day)
{
this.dateData = (uint64)DateToTicks(year, month, day);
this.dateData = (.)DateToTicks(year, month, day).Value;
}
public this(int year, int month, int day, int hour, int minute, int second)

View file

@ -18,16 +18,16 @@ namespace System.Reflection
var (objType, dataPtr) = GetTypeAndPointer(obj);
switch (objType.[Friend]mTypeCode)
{
case .Int8: return (.)*(int8*)dataPtr;
case .Int16: return (.)*(int16*)dataPtr;
case .Int32: return (.)*(int32*)dataPtr;
case .Int64: return (.)*(int64*)dataPtr;
case .UInt8, .Char8: return (.)*(uint8*)dataPtr;
case .UInt16, .Char16: return (.)*(uint16*)dataPtr;
case .UInt32, .Char32: return (.)*(uint32*)dataPtr;
case .UInt64: return (.)*(uint64*)dataPtr;
case .Int: return (.)*(int*)dataPtr;
case .UInt: return (.)*(uint*)dataPtr;
case .Int8: return *(int8*)dataPtr;
case .Int16: return *(int16*)dataPtr;
case .Int32: return *(int32*)dataPtr;
case .Int64: return *(int64*)dataPtr;
case .UInt8, .Char8: return (int64)*(uint8*)dataPtr;
case .UInt16, .Char16: return *(uint16*)dataPtr;
case .UInt32, .Char32: return *(uint32*)dataPtr;
case .UInt64: return (int64)*(uint64*)dataPtr;
case .Int: return (int64)*(int*)dataPtr;
case .UInt: return (int64)*(uint*)dataPtr;
default: return .Err;
}
}
@ -38,16 +38,16 @@ namespace System.Reflection
var dataPtr = variant.DataPtr;
switch (variant.VariantType.[Friend]mTypeCode)
{
case .Int8: return (.)*(int8*)dataPtr;
case .Int16: return (.)*(int16*)dataPtr;
case .Int32: return (.)*(int32*)dataPtr;
case .Int64: return (.)*(int64*)dataPtr;
case .UInt8, .Char8: return (.)*(uint8*)dataPtr;
case .UInt16, .Char16: return (.)*(uint16*)dataPtr;
case .UInt32, .Char32: return (.)*(uint32*)dataPtr;
case .UInt64: return (.)*(uint64*)dataPtr;
case .Int: return (.)*(int*)dataPtr;
case .UInt: return (.)*(uint*)dataPtr;
case .Int8: return *(int8*)dataPtr;
case .Int16: return *(int16*)dataPtr;
case .Int32: return *(int32*)dataPtr;
case .Int64: return *(int64*)dataPtr;
case .UInt8, .Char8: return *(uint8*)dataPtr;
case .UInt16, .Char16: return *(uint16*)dataPtr;
case .UInt32, .Char32: return *(uint32*)dataPtr;
case .UInt64: return (int64)*(uint64*)dataPtr;
case .Int: return (int64)*(int*)dataPtr;
case .UInt: return (int64)*(uint*)dataPtr;
default: return .Err;
}
}

View file

@ -1341,7 +1341,7 @@ namespace System
public Result<void> AppendF(StringView format, params Object[] args)
{
return AppendF(null, format, params args);
return AppendF((IFormatProvider)null, format, params args);
}
public int IndexOf(StringView subStr, bool ignoreCase = false)

View file

@ -168,6 +168,7 @@ void BfMethodMatcher::Init(/*SizedArrayImpl<BfResolvedArg>& arguments, */BfSized
mExplicitInterfaceCheck = NULL;
mSelfType = NULL;
mMethodType = BfMethodType_Normal;
mCheckReturnType = NULL;
mHadExplicitGenericArguments = false;
mHasVarArguments = false;
mInterfaceMethodInstance = NULL;
@ -178,6 +179,7 @@ void BfMethodMatcher::Init(/*SizedArrayImpl<BfResolvedArg>& arguments, */BfSized
mSkipImplicitParams = false;
mAllowImplicitThis = false;
mAllowImplicitRef = false;
mAllowImplicitWrap = false;
mHadVarConflictingReturnType = false;
mAutoFlushAmbiguityErrors = true;
mMethodCheckCount = 0;
@ -2036,8 +2038,7 @@ bool BfMethodMatcher::CheckMethod(BfTypeInstance* targetTypeInstance, BfTypeInst
goto NoMatch;
wantType = resolvedType;
}
if (wantType->IsSelf())
wantType = typeInstance;
wantType = mModule->ResolveSelfType(wantType, typeInstance);
if ((argIdx >= 0) && ((mArguments[argIdx].mArgFlags & BfArgFlag_ParamsExpr) != 0))
{
@ -2075,10 +2076,17 @@ bool BfMethodMatcher::CheckMethod(BfTypeInstance* targetTypeInstance, BfTypeInst
if ((wantType->IsRef()) && (!argTypedValue.mType->IsRef()) &&
((mAllowImplicitRef) || (wantType->IsIn())))
wantType = wantType->GetUnderlyingType();
if (!mModule->CanCast(argTypedValue, wantType))
if (!mModule->CanCast(argTypedValue, wantType, ((mBfEvalExprFlags & BfEvalExprFlags_FromConversionOp) != 0) ? BfCastFlags_NoConversionOperator : BfCastFlags_None))
{
if ((mAllowImplicitWrap) && (argTypedValue.mType->IsWrappableType()) && (mModule->GetWrappedStructType(argTypedValue.mType) == wantType))
{
// Is wrapped type
}
else
goto NoMatch;
}
}
}
paramIdx++;
argIdx++;
@ -2116,6 +2124,26 @@ bool BfMethodMatcher::CheckMethod(BfTypeInstance* targetTypeInstance, BfTypeInst
goto NoMatch;
}
if (mCheckReturnType != NULL)
{
auto wantType = mCheckReturnType;
if ((genericArgumentsSubstitute != NULL) && (wantType->IsUnspecializedType()))
{
wantType = typeUnspecMethodInstance->GetParamType(paramIdx);
auto resolvedType = mModule->ResolveGenericType(wantType, typeGenericArguments, genericArgumentsSubstitute, false);
if (resolvedType == NULL)
goto NoMatch;
wantType = resolvedType;
}
wantType = mModule->ResolveSelfType(wantType, typeInstance);
BfCastFlags castFlags = ((mBfEvalExprFlags & BfEvalExprFlags_FromConversionOp) != 0) ? BfCastFlags_NoConversionOperator : BfCastFlags_None;
if ((mBfEvalExprFlags & BfEvalExprFlags_FromConversionOp_Explicit) != 0)
castFlags = (BfCastFlags)(castFlags | BfCastFlags_Explicit);
if (!mModule->CanCast(mModule->GetFakeTypedValue(methodInstance->mReturnType), wantType, castFlags))
goto NoMatch;
}
if ((genericArgumentsSubstitute != NULL) && (genericArgumentsSubstitute->size() != 0))
{
for (int checkGenericIdx = uniqueGenericStartIdx; checkGenericIdx < (int)genericArgumentsSubstitute->size(); checkGenericIdx++)
@ -2272,7 +2300,8 @@ NoMatch:
auto resolveThisParam = mModule->ResolveGenericType(thisParam, NULL, &mCheckMethodGenericArguments);
if (resolveThisParam == NULL)
return false;
if (!mModule->CanCast(mTarget, resolveThisParam, BfCastFlags_Explicit))
if (!mModule->CanCast(mTarget, resolveThisParam,
((mBfEvalExprFlags & BfEvalExprFlags_FromConversionOp) != 0) ? (BfCastFlags)(BfCastFlags_Explicit | BfCastFlags_NoConversionOperator) : BfCastFlags_Explicit))
return false;
}
@ -6127,11 +6156,11 @@ BfTypedValue BfExprEvaluator::CreateCall(BfAstNode* targetSrc, BfMethodInstance*
return result;
}
BfTypedValue BfExprEvaluator::CreateCall(BfMethodMatcher* methodMatcher, BfTypedValue target)
{
auto& moduleMethodInstance = methodMatcher->mBestMethodInstance;
if (!moduleMethodInstance)
moduleMethodInstance = GetSelectedMethod(methodMatcher->mTargetSrc, methodMatcher->mBestMethodTypeInstance, methodMatcher->mBestMethodDef, *methodMatcher);
auto& moduleMethodInstance = GetSelectedMethod(*methodMatcher);
if (moduleMethodInstance.mMethodInstance == NULL)
return BfTypedValue();
if ((target) && (target.mType != moduleMethodInstance.mMethodInstance->GetOwner()))
@ -9462,6 +9491,19 @@ BfTypedValue BfExprEvaluator::MatchMethod(BfAstNode* targetSrc, BfMethodBoundExp
BfModuleMethodInstance moduleMethodInstance = mModule->GetMethodByName(typeInst, "ReturnValueDiscarded", 0, true);
if (moduleMethodInstance)
{
bool wasCapturingMethodMatchInfo = false;
if (autoComplete != NULL)
{
wasCapturingMethodMatchInfo = autoComplete->mIsCapturingMethodMatchInfo;
autoComplete->mIsCapturingMethodMatchInfo = false;
}
defer
(
if (autoComplete != NULL)
autoComplete->mIsCapturingMethodMatchInfo = wasCapturingMethodMatchInfo;
);
auto wasGetDefinition = (autoComplete != NULL) && (autoComplete->mIsGetDefinition);
if (wasGetDefinition)
autoComplete->mIsGetDefinition = false;
@ -15350,6 +15392,13 @@ BfModuleMethodInstance BfExprEvaluator::GetSelectedMethod(BfAstNode* targetSrc,
return moduleMethodInstance;
}
BfModuleMethodInstance BfExprEvaluator::GetSelectedMethod(BfMethodMatcher& methodMatcher)
{
if (!methodMatcher.mBestMethodInstance)
methodMatcher.mBestMethodInstance = GetSelectedMethod(methodMatcher.mTargetSrc, methodMatcher.mBestMethodTypeInstance, methodMatcher.mBestMethodDef, methodMatcher);
return methodMatcher.mBestMethodInstance;
}
void BfExprEvaluator::CheckLocalMethods(BfAstNode* targetSrc, BfTypeInstance* typeInstance, const StringImpl& methodName, BfMethodMatcher& methodMatcher, BfMethodType methodType)
{
auto _GetNodeId = [&]()
@ -20173,6 +20222,8 @@ BfTypedValue BfExprEvaluator::PerformUnaryOperation_TryOperator(const BfTypedVal
}
}
methodMatcher.FlushAmbiguityError();
if (methodMatcher.mBestMethodDef == NULL)
{
// Check method generic constraints

View file

@ -190,6 +190,7 @@ public:
String mMethodName;
BfMethodInstance* mInterfaceMethodInstance;
SizedArrayImpl<BfResolvedArg>& mArguments;
BfType* mCheckReturnType;
BfMethodType mMethodType;
BfCheckedKind mCheckedKind;
bool mHadExplicitGenericArguments;
@ -198,6 +199,7 @@ public:
bool mBypassVirtual;
bool mAllowImplicitThis;
bool mAllowImplicitRef;
bool mAllowImplicitWrap;
bool mAllowStatic;
bool mAllowNonStatic;
bool mSkipImplicitParams;
@ -462,6 +464,7 @@ public:
BfResolvedArgs& argValue, BfSizedArray<ASTREF(BfTypeReference*)>* methodGenericArguments, BfCheckedKind checkedKind = BfCheckedKind_NotSet);
BfTypedValue MakeCallableTarget(BfAstNode* targetSrc, BfTypedValue target);
BfModuleMethodInstance GetSelectedMethod(BfAstNode* targetSrc, BfTypeInstance* curTypeInst, BfMethodDef* methodDef, BfMethodMatcher& methodMatcher, BfType** overrideReturnType = NULL);
BfModuleMethodInstance GetSelectedMethod(BfMethodMatcher& methodMatcher);
bool CheckVariableDeclaration(BfAstNode* checkNode, bool requireSimpleIfExpr, bool exprMustBeTrue, bool silentFail);
bool HasVariableDeclaration(BfAstNode* checkNode);
void DoInvocation(BfAstNode* target, BfMethodBoundExpression* methodBoundExpr, const BfSizedArray<BfExpression*>& args, BfSizedArray<ASTREF(BfTypeReference*)>* methodGenericArgs, BfTypedValue* outCascadeValue = NULL);

View file

@ -80,6 +80,8 @@ enum BfEvalExprFlags
BfEvalExprFlags_DeclType = 0x1000000,
BfEvalExprFlags_AllowBase = 0x2000000,
BfEvalExprFlags_NoCeRebuildFlags = 0x4000000,
BfEvalExprFlags_FromConversionOp = 0x8000000,
BfEvalExprFlags_FromConversionOp_Explicit = 0x10000000,
BfEvalExprFlags_InheritFlags = BfEvalExprFlags_NoAutoComplete | BfEvalExprFlags_Comptime | BfEvalExprFlags_DeclType
};
@ -1836,6 +1838,7 @@ public:
void MarkScopeLeft(BfScopeData* scopeData);
BfGenericParamType* GetGenericParamType(BfGenericParamKind paramKind, int paramIdx);
BfType* ResolveGenericType(BfType* unspecializedType, BfTypeVector* typeGenericArguments, BfTypeVector* methodGenericArguments, bool allowFail = false);
BfType* ResolveSelfType(BfType* type, BfTypeInstance* selfType);
bool IsUnboundGeneric(BfType* type);
BfGenericParamInstance* GetGenericTypeParamInstance(int paramIdx);
BfGenericParamInstance* GetGenericParamInstance(BfGenericParamType* type);

View file

@ -434,9 +434,29 @@ bool BfModule::AreConstraintsSubset(BfGenericParamInstance* checkInner, BfGeneri
return false;
}
for (auto& innerIFace : checkInner->mInterfaceConstraints)
for (auto innerIFace : checkInner->mInterfaceConstraints)
{
if (!checkOuter->mInterfaceConstraints.Contains(innerIFace))
if (checkOuter->mInterfaceConstraints.IsEmpty())
return false;
if (checkOuter->mInterfaceConstraintSet == NULL)
{
std::function<void(BfTypeInstance*)> _AddInterface = [&](BfTypeInstance* ifaceType)
{
if (!checkOuter->mInterfaceConstraintSet->Add(ifaceType))
return;
if (ifaceType->mDefineState < BfTypeDefineState_HasInterfaces)
PopulateType(ifaceType);
for (auto& ifaceEntry : ifaceType->mInterfaces)
_AddInterface(ifaceEntry.mInterfaceType);
};
checkOuter->mInterfaceConstraintSet = new HashSet<BfTypeInstance*>();
for (auto outerIFace : checkOuter->mInterfaceConstraints)
_AddInterface(outerIFace);
}
if (!checkOuter->mInterfaceConstraintSet->Contains(innerIFace))
return false;
}
@ -2590,12 +2610,6 @@ void BfModule::DoPopulateType_TypeAlias(BfTypeInstance* typeAlias)
SetAndRestoreValue<BfMethodInstance*> prevMethodInstance(mCurMethodInstance, NULL);
SetAndRestoreValue<BfMethodState*> prevMethodState(mCurMethodState, NULL);
if (typeAlias->mDefineState < BfTypeDefineState_Declaring)
{
typeAlias->mDefineState = BfTypeDefineState_Declaring;
DoPopulateType_InitSearches(typeAlias);
}
BF_ASSERT(mCurMethodInstance == NULL);
auto typeDef = typeAlias->mTypeDef;
auto typeAliasDecl = (BfTypeAliasDeclaration*)typeDef->mTypeDeclaration;
@ -2607,11 +2621,19 @@ void BfModule::DoPopulateType_TypeAlias(BfTypeInstance* typeAlias)
if ((typeAlias->mGenericTypeInfo != NULL) && (!typeAlias->mGenericTypeInfo->mFinishedGenericParams))
FinishGenericParams(typeAlias);
typeAlias->mDefineState = BfTypeDefineState_ResolvingBaseType;
BfTypeState typeState(mCurTypeInstance, mContext->mCurTypeState);
typeState.mPopulateType = BfPopulateType_Data;
typeState.mCurBaseTypeRef = typeAliasDecl->mAliasToType;
SetAndRestoreValue<BfTypeState*> prevTypeState(mContext->mCurTypeState, &typeState);
if (typeAlias->mDefineState < BfTypeDefineState_Declaring)
{
typeAlias->mDefineState = BfTypeDefineState_Declaring;
DoPopulateType_InitSearches(typeAlias);
}
typeAlias->mDefineState = BfTypeDefineState_ResolvingBaseType;
if (!CheckCircularDataError())
{
if (typeAliasDecl->mAliasToType != NULL)
@ -2826,6 +2848,9 @@ void BfModule::DoPopulateType_FinishEnum(BfTypeInstance* typeInstance, bool unde
else
typeCode = BfTypeCode_Int64;
if (typeInstance->mIsCRepr)
typeCode = BfTypeCode_Int32;
if (typeCode != BfTypeCode_Int64)
{
for (auto& fieldInstanceRef : typeInstance->mFieldInstances)
@ -8171,6 +8196,14 @@ BfType* BfModule::ResolveGenericType(BfType* unspecializedType, BfTypeVector* ty
return unspecializedType;
}
BfType* BfModule::ResolveSelfType(BfType* type, BfTypeInstance* selfType)
{
if (!type->IsUnspecializedTypeVariation())
return type;
SetAndRestoreValue<BfTypeInstance*> prevCurTypeInst(mCurTypeInstance, selfType);
return ResolveGenericType(type, NULL, NULL);
}
BfType* BfModule::ResolveType(BfType* lookupType, BfPopulateType populateType, BfResolveTypeRefFlags resolveFlags)
{
BfResolvedTypeSet::LookupContext lookupCtx;
@ -12540,68 +12573,39 @@ BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfTyp
}
// Check user-defined operators
if ((castFlags & BfCastFlags_NoConversionOperator) == 0)
if (((castFlags & BfCastFlags_NoConversionOperator) == 0) && (toType != mContext->mBfObjectType))
{
auto fromType = typedVal.mType;
auto fromTypeInstance = typedVal.mType->ToTypeInstance();
auto toTypeInstance = toType->ToTypeInstance();
BfType* walkFromType = typedVal.mType;
if (walkFromType->IsWrappableType())
walkFromType = GetWrappedStructType(walkFromType);
BfType* walkToType = toType;
if (walkToType->IsWrappableType())
walkToType = GetWrappedStructType(walkToType);
auto liftedFromType = ((fromTypeInstance != NULL) && fromTypeInstance->IsNullable()) ? fromTypeInstance->GetUnderlyingType() : NULL;
auto liftedToType = ((toTypeInstance != NULL) && toTypeInstance->IsNullable()) ? toTypeInstance->GetUnderlyingType() : NULL;
SizedArray<BfResolvedArg, 1> args;
BfResolvedArg resolvedArg;
resolvedArg.mTypedValue = typedVal;
args.push_back(resolvedArg);
BfMethodMatcher methodMatcher(srcNode, this, "", args, NULL);
methodMatcher.mCheckReturnType = toType;
methodMatcher.mBfEvalExprFlags = (BfEvalExprFlags)(BfEvalExprFlags_NoAutoComplete | BfEvalExprFlags_FromConversionOp);
if ((castFlags & BfCastFlags_Explicit) != 0)
methodMatcher.mBfEvalExprFlags = (BfEvalExprFlags)(methodMatcher.mBfEvalExprFlags | BfEvalExprFlags_FromConversionOp_Explicit);
methodMatcher.mAllowImplicitRef = true;
methodMatcher.mAllowImplicitWrap = true;
BfBaseClassWalker baseClassWalker(walkFromType, walkToType, this);
int bestFromDist = INT_MAX;
BfType* bestFromType = NULL;
int bestNegFromDist = INT_MAX;
BfType* bestNegFromType = NULL;
int bestToDist = INT_MAX;
BfType* bestToType = NULL;
int bestNegToDist = INT_MAX;
BfType* bestNegToType = NULL;
bool isAmbiguousCast = false;
BfIRValue conversionResult;
BfMethodInstance* opMethodInstance = NULL;
BfType* opMethodSrcType = NULL;
BfOperatorInfo* constraintOperatorInfo = NULL;
// Normal, lifted, execute
for (int pass = 0; pass < 3; pass++)
{
auto checkToType = toType;
auto checkFromType = fromType;
if (pass == 1)
{
if ((bestFromType != NULL) && (bestToType != NULL))
continue;
if (liftedFromType != NULL)
checkFromType = liftedFromType;
if (liftedToType != NULL)
checkToType = liftedToType;
}
else if (pass == 2)
{
if ((bestFromType == NULL) || (bestToType == NULL))
break;
}
BfType* searchFromType = checkFromType;
if (searchFromType->IsSizedArray())
searchFromType = GetWrappedStructType(checkFromType);
bool isConstraintCheck = ((castFlags & BfCastFlags_IsConstraintCheck) != 0);
BfBaseClassWalker baseClassWalker(searchFromType, toType, this);
bool isConstraintCheck = false;// ((opFlags& BfUnaryOpFlag_IsConstraintCheck) != 0);
BfType* operatorConstraintReturnType = NULL;
BfType* bestSelfType = NULL;
while (true)
{
auto entry = baseClassWalker.Next();
auto checkInstance = entry.mTypeInstance;
if (checkInstance == NULL)
auto checkType = entry.mTypeInstance;
if (checkType == NULL)
break;
for (auto operatorDef : checkInstance->mTypeDef->mOperators)
for (auto operatorDef : checkType->mTypeDef->mOperators)
{
if (operatorDef->mOperatorDeclaration->mIsConvOperator)
{
@ -12609,262 +12613,28 @@ BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfTyp
(operatorDef->mOperatorDeclaration->mExplicitToken->GetToken() == BfToken_Explicit))
continue;
BfType* methodFromType = NULL;
BfType* methodToType = NULL;
if (isConstraintCheck)
{
auto operatorInfo = GetOperatorInfo(checkInstance, operatorDef);
methodFromType = operatorInfo->mLHSType;
methodToType = operatorInfo->mReturnType;
if ((methodFromType == NULL) || (methodToType == NULL))
continue;
}
else
{
auto methodInst = GetRawMethodInstanceAtIdx(checkInstance, operatorDef->mIdx);
if (methodInst == NULL)
continue;
if (methodInst->GetParamCount() != 1)
{
AssertErrorState();
continue;
}
methodFromType = methodInst->GetParamType(0);
methodToType = methodInst->mReturnType;
}
if (methodFromType->IsRef())
methodFromType = methodFromType->GetUnderlyingType();
if (methodFromType->IsSelf())
methodFromType = entry.mSrcType;
if (methodToType->IsSelf())
methodToType = entry.mSrcType;
// Selection pass
if (pass < 2)
{
auto methodCheckFromType = methodFromType;
auto methodCheckToType = methodToType;
if (pass == 1)
{
// Only check inner type on lifted types when we aren't checking conversions within lifted class
// This avoid some infinite conversions
if ((methodCheckFromType->IsNullable()) && (!checkInstance->IsNullable()))
methodCheckFromType = methodCheckFromType->GetUnderlyingType();
if ((methodCheckToType->IsNullable()) && (!checkInstance->IsNullable()))
methodCheckToType = methodCheckToType->GetUnderlyingType();
}
int fromDist = GetTypeDistance(methodCheckFromType, checkFromType);
if ((fromDist == INT_MAX) && (searchFromType != checkFromType))
{
fromDist = GetTypeDistance(methodCheckFromType, searchFromType);
}
if (fromDist < 0)
{
// Allow us to cast a constant int to a smaller type if it satisfies the cast operator
if ((typedVal.mValue.IsConst()) && (CanCast(typedVal, methodCheckFromType, BfCastFlags_NoConversionOperator)))
{
fromDist = 0;
}
}
int toDist = GetTypeDistance(methodCheckToType, checkToType);
if ((fromDist == INT_MAX) || (toDist == INT_MAX))
if (!methodMatcher.IsMemberAccessible(checkType, operatorDef->mDeclaringType))
continue;
if (((fromDist >= 0) && (toDist >= 0)) || (explicitCast))
int prevArgSize = (int)args.mSize;
if (!operatorDef->mIsStatic)
{
if ((fromDist >= 0) && (fromDist < bestFromDist))
{
bestFromDist = fromDist;
bestFromType = methodFromType;
// Try without arg
args.mSize = 0;
}
if ((toDist >= 0) && (toDist < bestToDist))
{
bestToDist = toDist;
bestToType = methodToType;
}
}
if (methodMatcher.CheckMethod(NULL, checkType, operatorDef, false))
methodMatcher.mSelfType = entry.mSrcType;
if (explicitCast)
{
fromDist = abs(fromDist);
toDist = abs(toDist);
if ((fromDist >= 0) && (fromDist < bestNegFromDist))
{
bestNegFromDist = fromDist;
bestNegFromType = methodFromType;
}
if ((toDist >= 0) && (toDist < bestNegToDist))
{
bestNegToDist = toDist;
bestNegToType = methodToType;
}
}
}
else if (pass == 2) // Execution Pass
{
if ((methodFromType == bestFromType) && (methodToType == bestToType))
{
if (isConstraintCheck)
{
auto operatorInfo = GetOperatorInfo(checkInstance, operatorDef);
constraintOperatorInfo = operatorInfo;
}
else
{
// Get in native module so our module doesn't get a reference to it - we may not end up calling it at all!
BfMethodInstance* methodInstance = GetRawMethodInstanceAtIdx(checkInstance, operatorDef->mIdx);
if (opMethodInstance != NULL)
{
int prevGenericCount = GetGenericParamAndReturnCount(opMethodInstance);
int newGenericCount = GetGenericParamAndReturnCount(methodInstance);
if (newGenericCount > prevGenericCount)
{
// Prefer generic match
opMethodInstance = methodInstance;
opMethodSrcType = entry.mSrcType;
}
else if (newGenericCount < prevGenericCount)
{
// Previous was a generic match
continue;
}
else
{
isAmbiguousCast = true;
break;
}
}
else
{
opMethodInstance = methodInstance;
opMethodSrcType = entry.mSrcType;
}
}
}
args.mSize = prevArgSize;
}
}
}
if (isAmbiguousCast)
break;
methodMatcher.FlushAmbiguityError();
if ((opMethodInstance != NULL) || (constraintOperatorInfo != NULL))
if (methodMatcher.mBestMethodDef == NULL)
{
if (mayBeBox)
{
if (!ignoreErrors)
{
if (Fail("Ambiguous cast, may be conversion operator or may be boxing request", srcNode) != NULL)
mCompiler->mPassInstance->MoreInfo("See conversion operator", opMethodInstance->mMethodDef->GetRefNode());
}
else if (!silentFail)
SetFail();
}
BfType* returnType;
if (isConstraintCheck)
{
returnType = constraintOperatorInfo->mReturnType;
}
else
{
returnType = opMethodInstance->mReturnType;
BfMethodInstance* methodInstance = GetRawMethodInstance(opMethodInstance->GetOwner(), opMethodInstance->mMethodDef);
auto methodDeclaration = methodInstance->mMethodDef->GetMethodDeclaration();
if (methodDeclaration->mBody == NULL)
{
// Handle the typedPrim<->underlying part implicitly
if (fromType->IsTypedPrimitive())
{
auto convTypedValue = BfTypedValue(typedVal.mValue, fromType->GetUnderlyingType());
return CastToValue(srcNode, convTypedValue, toType, (BfCastFlags)(castFlags & ~BfCastFlags_Explicit), NULL);
}
else if (toType->IsTypedPrimitive())
{
auto castedVal = CastToValue(srcNode, typedVal, toType->GetUnderlyingType(), (BfCastFlags)(castFlags & ~BfCastFlags_Explicit), NULL);
return castedVal;
}
}
}
// Actually perform conversion
BfExprEvaluator exprEvaluator(this);
BfTypedValue castedFromValue;
if ((typedVal.mType->IsSizedArray()) && (bestFromType->IsInstanceOf(mCompiler->mSizedArrayTypeDef)))
{
castedFromValue = MakeAddressable(typedVal);
if (!bestFromType->IsValuelessType())
castedFromValue.mValue = mBfIRBuilder->CreateBitCast(castedFromValue.mValue, mBfIRBuilder->MapTypeInstPtr(bestFromType->ToTypeInstance()));
castedFromValue.mType = bestFromType;
}
else
castedFromValue = Cast(srcNode, typedVal, bestFromType, castFlags);
if (!castedFromValue)
return BfIRValue();
BfTypedValue operatorOut;
if (ignoreWrites)
{
if (opMethodInstance != NULL)
exprEvaluator.PerformCallChecks(opMethodInstance, srcNode);
if (returnType == toType)
return mBfIRBuilder->GetFakeVal();
operatorOut = GetDefaultTypedValue(returnType, false, BfDefaultValueKind_Addr);
}
else
{
BfModuleMethodInstance moduleMethodInstance = GetMethodInstance(opMethodInstance->GetOwner(), opMethodInstance->mMethodDef, BfTypeVector());
exprEvaluator.PerformCallChecks(moduleMethodInstance.mMethodInstance, srcNode);
if (moduleMethodInstance.mMethodInstance->GetParamType(0)->IsRef())
castedFromValue = ToRef(castedFromValue);
SizedArray<BfIRValue, 1> args;
exprEvaluator.PushArg(castedFromValue, args);
operatorOut = exprEvaluator.CreateCall(NULL, moduleMethodInstance.mMethodInstance, IsSkippingExtraResolveChecks() ? BfIRValue() : moduleMethodInstance.mFunc, false, args);
if ((operatorOut.mType != NULL) && (operatorOut.mType->IsSelf()))
{
BF_ASSERT(IsInGeneric());
operatorOut = GetDefaultTypedValue(opMethodSrcType);
}
}
return CastToValue(srcNode, operatorOut, toType, castFlags, resultFlags);
}
}
if (bestFromType == NULL)
bestFromType = bestNegFromType;
if (bestToType == NULL)
bestToType = bestNegToType;
}
isAmbiguousCast |= ((bestFromType != NULL) && (bestToType != NULL));
if (isAmbiguousCast)
{
if (!ignoreErrors)
{
const char* errStr = "Ambiguous conversion operators for casting from '%s' to '%s'";
Fail(StrFormat(errStr, TypeToString(typedVal.mType).c_str(), TypeToString(toType).c_str()), srcNode);
}
else if (!silentFail)
SetFail();
return BfIRValue();
}
// Check method generic constraints
if ((mCurMethodInstance != NULL) && (mCurMethodInstance->mIsUnspecialized) && (mCurMethodInstance->mMethodInfoEx != NULL))
{
@ -12914,6 +12684,58 @@ BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfTyp
}
}
}
else
{
BfTypedValue result;
BfExprEvaluator exprEvaluator(this);
exprEvaluator.mBfEvalExprFlags = BfEvalExprFlags_FromConversionOp;
auto moduleMethodInstance = exprEvaluator.GetSelectedMethod(methodMatcher);
if (moduleMethodInstance.mMethodInstance != NULL)
{
auto paramType = moduleMethodInstance.mMethodInstance->GetParamType(0);
auto wantType = paramType;
if (wantType->IsRef())
wantType = wantType->GetUnderlyingType();
auto typedVal = methodMatcher.mArguments[0].mTypedValue;
if (wantType != typedVal.mType)
{
if ((typedVal.mType->IsWrappableType()) && (wantType == GetWrappedStructType(typedVal.mType)))
{
typedVal = MakeAddressable(typedVal);
methodMatcher.mArguments[0].mTypedValue = BfTypedValue(mBfIRBuilder->CreateBitCast(typedVal.mValue, mBfIRBuilder->MapTypeInstPtr(wantType->ToTypeInstance())),
paramType, paramType->IsRef() ? BfTypedValueKind_Value : BfTypedValueKind_Addr);
}
else
{
methodMatcher.mArguments[0].mTypedValue = Cast(srcNode, typedVal, wantType, BfCastFlags_Explicit);
if (paramType->IsRef())
{
typedVal = MakeAddressable(typedVal);
typedVal.mKind = BfTypedValueKind_Addr;
}
}
}
}
result = exprEvaluator.CreateCall(&methodMatcher, BfTypedValue());
if (resultFlags != NULL)
{
if (result.IsAddr())
*resultFlags = (BfCastResultFlags)(*resultFlags | BfCastResultFlags_IsAddr);
if (result.mKind == BfTypedValueKind_TempAddr)
*resultFlags = (BfCastResultFlags)(*resultFlags | BfCastResultFlags_IsTemp);
}
else if (result.IsAddr())
result = LoadValue(result);
if (result.mType != toType)
return CastToValue(srcNode, result, toType, BfCastFlags_Explicit, resultFlags);
if (result)
return result.mValue;
}
}
// Default typed primitive 'underlying casts' happen after checking cast operators
if (explicitCast)

View file

@ -1141,6 +1141,7 @@ public:
BfGenericParamFlags mGenericParamFlags;
BfType* mExternType;
Array<BfTypeInstance*> mInterfaceConstraints;
HashSet<BfTypeInstance*>* mInterfaceConstraintSet;
Array<BfGenericOperatorConstraintInstance> mOperatorConstraints;
Array<BfTypeReference*> mComptypeConstraint;
BfType* mTypeConstraint;
@ -1151,6 +1152,7 @@ public:
mExternType = NULL;
mGenericParamFlags = BfGenericParamFlag_None;
mTypeConstraint = NULL;
mInterfaceConstraintSet = NULL;
mRefCount = 1;
}
@ -1162,6 +1164,7 @@ public:
virtual ~BfGenericParamInstance()
{
delete mInterfaceConstraintSet;
}
virtual BfConstraintDef* GetConstraintDef() = 0;
virtual BfGenericParamDef* GetGenericParamDef() = 0;