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Improved numeric handling on types with numeric conversion ops

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This commit is contained in:
Brian Fiete 2022-05-15 17:56:39 -07:00
parent 2aaf5a2db4
commit 75107a947c
5 changed files with 176 additions and 11 deletions
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67
IDEHelper/Compiler/BfModuleTypeUtils.cpp
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@ -12240,6 +12240,73 @@ bool BfModule::AreSplatsCompatible(BfType* fromType, BfType* toType, bool* outNe
return true;
}
BfType* BfModule::GetClosestNumericCastType(const BfTypedValue& typedVal, BfType* wantType)
{
BfType* toType = wantType;
if ((toType == NULL) ||
((!toType->IsFloat()) && (!toType->IsIntegral())))
toType = NULL;
BfType* bestReturnType = NULL;
if (typedVal.mType->IsTypedPrimitive())
return NULL;
auto checkType = typedVal.mType->ToTypeInstance();
while (checkType != NULL)
{
for (auto operatorDef : checkType->mTypeDef->mOperators)
{
if (operatorDef->mOperatorDeclaration->mIsConvOperator)
{
if (operatorDef->IsExplicit())
continue;
auto returnType = CheckOperator(checkType, operatorDef, typedVal, BfTypedValue());
if ((returnType != NULL) &&
((returnType->IsIntegral()) || (returnType->IsFloat())))
{
bool canCastTo = true;
if ((toType != NULL) && (!CanCast(GetFakeTypedValue(returnType), toType)))
canCastTo = false;
if (canCastTo)
{
if (bestReturnType == NULL)
{
bestReturnType = returnType;
}
else
{
if (CanCast(GetFakeTypedValue(bestReturnType), returnType))
{
bestReturnType = returnType;
}
}
}
}
}
}
checkType = checkType->mBaseType;
}
if ((toType == NULL) && (bestReturnType != NULL))
{
auto intPtrType = GetPrimitiveType(BfTypeCode_IntPtr);
if (!CanCast(GetFakeTypedValue(bestReturnType), intPtrType))
{
// If no 'wantType' is specified, try to get closest one to an intptr
auto otherType = GetClosestNumericCastType(typedVal, intPtrType);
if (otherType != NULL)
return otherType;
}
}
return bestReturnType;
}
BfIRValue BfModule::CastToFunction(BfAstNode* srcNode, const BfTypedValue& targetValue, BfMethodInstance* methodInstance, BfType* toType, BfCastFlags castFlags, BfIRValue irFunc)
{
auto invokeMethodInstance = GetDelegateInvokeMethod(toType->ToTypeInstance());