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offsetof

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This commit is contained in:
Brian Fiete 2021-09-10 14:21:25 -07:00
parent 507fb82e4a
commit 4cda126188
11 changed files with 156 additions and 10 deletions
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82
IDEHelper/Compiler/BfExprEvaluator.cpp
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@ -10409,8 +10409,11 @@ bool BfExprEvaluator::LookupTypeProp(BfTypeOfExpression* typeOfExpr, BfIdentifie
return true;
}
void BfExprEvaluator::DoTypeIntAttr(BfTypeReference* typeRef, BfToken token)
void BfExprEvaluator::DoTypeIntAttr(BfTypeReference* typeRef, BfTokenNode* commaToken, BfIdentifierNode* memberName, BfToken token)
{
auto autoComplete = GetAutoComplete();
auto type = mModule->ResolveTypeRef(typeRef, BfPopulateType_Data, BfResolveTypeRefFlag_AutoComplete);
if (type == NULL)
return;
@ -10433,6 +10436,72 @@ void BfExprEvaluator::DoTypeIntAttr(BfTypeReference* typeRef, BfToken token)
default: break;
}
if (token == BfToken_OffsetOf)
{
bool found = false;
String findName;
if (memberName != NULL)
findName = memberName->ToString();
BfAstNode* refNode = typeRef;
if (memberName != NULL)
refNode = memberName;
auto checkTypeInst = typeInst;
while (checkTypeInst != NULL)
{
checkTypeInst->mTypeDef->PopulateMemberSets();
String filter;
if ((autoComplete != NULL) && (autoComplete->InitAutocomplete(commaToken, memberName, filter)))
{
auto activeTypeDef = mModule->GetActiveTypeDef();
mModule->PopulateType(checkTypeInst);
BfProtectionCheckFlags protectionCheckFlags = BfProtectionCheckFlag_None;
for (auto fieldDef : checkTypeInst->mTypeDef->mFields)
{
if (fieldDef->mIsStatic)
continue;
if (!mModule->CheckProtection(protectionCheckFlags, typeInst, fieldDef->mDeclaringType->mProject, fieldDef->mProtection, typeInst))
continue;
if ((!typeInst->IsTypeMemberIncluded(fieldDef->mDeclaringType, activeTypeDef, mModule)) ||
(!typeInst->IsTypeMemberAccessible(fieldDef->mDeclaringType, activeTypeDef)))
continue;
auto& fieldInst = checkTypeInst->mFieldInstances[fieldDef->mIdx];
autoComplete->AddField(checkTypeInst, fieldDef, &fieldInst, filter);
}
}
BfMemberSetEntry* memberSetEntry = NULL;
if (checkTypeInst->mTypeDef->mFieldSet.TryGetWith(findName, &memberSetEntry))
{
auto fieldDef = (BfFieldDef*)memberSetEntry->mMemberDef;
if (fieldDef != NULL)
{
if (fieldDef->mIsStatic)
mModule->Fail(StrFormat("Cannot generate an offset from static field '%s.%s'", mModule->TypeToString(type).c_str(), fieldDef->mName.c_str()), refNode);
mModule->PopulateType(checkTypeInst);
auto& fieldInst = checkTypeInst->mFieldInstances[fieldDef->mIdx];
attrVal = fieldInst.mDataOffset;
found = true;
break;
}
}
checkTypeInst = checkTypeInst->mBaseType;
}
if (!found)
{
mModule->Fail(StrFormat("Unable to locate field '%s.%s'", mModule->TypeToString(type).c_str(), findName.c_str()), refNode);
}
}
bool isUndefVal = false;
if (type->IsGenericParam())
@ -10458,17 +10527,22 @@ void BfExprEvaluator::DoTypeIntAttr(BfTypeReference* typeRef, BfToken token)
void BfExprEvaluator::Visit(BfSizeOfExpression* sizeOfExpr)
{
DoTypeIntAttr(sizeOfExpr->mTypeRef, BfToken_SizeOf);
DoTypeIntAttr(sizeOfExpr->mTypeRef, NULL, NULL, BfToken_SizeOf);
}
void BfExprEvaluator::Visit(BfAlignOfExpression* alignOfExpr)
{
DoTypeIntAttr(alignOfExpr->mTypeRef, BfToken_AlignOf);
DoTypeIntAttr(alignOfExpr->mTypeRef, NULL, NULL, BfToken_AlignOf);
}
void BfExprEvaluator::Visit(BfStrideOfExpression* strideOfExpr)
{
DoTypeIntAttr(strideOfExpr->mTypeRef, BfToken_StrideOf);
DoTypeIntAttr(strideOfExpr->mTypeRef, NULL, NULL, BfToken_StrideOf);
}
void BfExprEvaluator::Visit(BfOffsetOfExpression* offsetOfExpr)
{
DoTypeIntAttr(offsetOfExpr->mTypeRef, offsetOfExpr->mCommaToken, offsetOfExpr->mMemberName, BfToken_OffsetOf);
}
void BfExprEvaluator::Visit(BfDefaultExpression* defaultExpr)