Revert "[Sema] Make FunctionType's TSI use unadjusted argument types"
This reverts commit r183614.
It broke test/Sema/block-printf-attribute-1.c on non-Windows platforms,
and the fix is not trivial.
llvm-svn: 183616
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 1db768b2..e6a8946 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -5897,40 +5897,23 @@
<< DeclSpec::getSpecifierName(TSCS);
// Do not allow returning a objc interface by-value.
- bool NeedsAdjustment = false;
- const FunctionType *FT = R->castAs<FunctionType>();
- QualType ResultTy = FT->getResultType();
- if (ResultTy->isObjCObjectType()) {
+ if (R->getAs<FunctionType>()->getResultType()->isObjCObjectType()) {
Diag(D.getIdentifierLoc(),
- diag::err_object_cannot_be_passed_returned_by_value) << 0 << ResultTy
- << FixItHint::CreateInsertion(D.getIdentifierLoc(), "*");
- ResultTy = Context.getObjCObjectPointerType(ResultTy);
- NeedsAdjustment = true;
- }
+ diag::err_object_cannot_be_passed_returned_by_value) << 0
+ << R->getAs<FunctionType>()->getResultType()
+ << FixItHint::CreateInsertion(D.getIdentifierLoc(), "*");
- // Adjust parameter types from the type as written.
- SmallVector<QualType, 16> AdjustedParms;
- const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(FT);
- if (FPT) {
- for (FunctionProtoType::arg_type_iterator I = FPT->arg_type_begin(),
- E = FPT->arg_type_end(); I != E; ++I) {
- AdjustedParms.push_back(Context.getAdjustedParameterType(*I));
- if (AdjustedParms.back() != *I)
- NeedsAdjustment = true;
- }
- }
-
- // Skip the type recreation if it isn't needed, for performance and to avoid
- // prematurely desugaring things like typedefs and __typeofs.
- if (NeedsAdjustment) {
- if (FPT) {
+ QualType T = R->getAs<FunctionType>()->getResultType();
+ T = Context.getObjCObjectPointerType(T);
+ if (const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(R)) {
FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo();
- R = Context.getFunctionType(ResultTy, AdjustedParms, EPI);
- } else {
- assert(isa<FunctionNoProtoType>(FT));
- FunctionType::ExtInfo EI = FT->getExtInfo();
- R = Context.getFunctionNoProtoType(ResultTy, EI);
+ R = Context.getFunctionType(T,
+ ArrayRef<QualType>(FPT->arg_type_begin(),
+ FPT->getNumArgs()),
+ EPI);
}
+ else if (isa<FunctionNoProtoType>(R))
+ R = Context.getFunctionNoProtoType(T);
}
bool isFriend = false;
@@ -8515,15 +8498,27 @@
SourceLocation NameLoc, IdentifierInfo *Name,
QualType T, TypeSourceInfo *TSInfo,
VarDecl::StorageClass StorageClass) {
- // Diagnose non-const parameter arrays of ARC types.
+ // In ARC, infer a lifetime qualifier for appropriate parameter types.
if (getLangOpts().ObjCAutoRefCount &&
T.getObjCLifetime() == Qualifiers::OCL_None &&
- T->isObjCLifetimeType() &&
- T->isArrayType() &&
- !T.isConstQualified()) {
- DelayedDiagnostics.add(
- sema::DelayedDiagnostic::makeForbiddenType(
+ T->isObjCLifetimeType()) {
+
+ Qualifiers::ObjCLifetime lifetime;
+
+ // Special cases for arrays:
+ // - if it's const, use __unsafe_unretained
+ // - otherwise, it's an error
+ if (T->isArrayType()) {
+ if (!T.isConstQualified()) {
+ DelayedDiagnostics.add(
+ sema::DelayedDiagnostic::makeForbiddenType(
NameLoc, diag::err_arc_array_param_no_ownership, T, false));
+ }
+ lifetime = Qualifiers::OCL_ExplicitNone;
+ } else {
+ lifetime = T->getObjCARCImplicitLifetime();
+ }
+ T = Context.getLifetimeQualifiedType(T, lifetime);
}
ParmVarDecl *New = ParmVarDecl::Create(Context, DC, StartLoc, NameLoc, Name,
diff --git a/clang/lib/Sema/SemaType.cpp b/clang/lib/Sema/SemaType.cpp
index 977294b..e27d627 100644
--- a/clang/lib/Sema/SemaType.cpp
+++ b/clang/lib/Sema/SemaType.cpp
@@ -1674,7 +1674,7 @@
bool Invalid = false;
for (unsigned Idx = 0, Cnt = ParamTypes.size(); Idx < Cnt; ++Idx) {
// FIXME: Loc is too inprecise here, should use proper locations for args.
- QualType ParamType = ParamTypes[Idx];
+ QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]);
if (ParamType->isVoidType()) {
Diag(Loc, diag::err_param_with_void_type);
Invalid = true;
@@ -2798,11 +2798,13 @@
for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) {
ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param);
- // Get the type as written. It will be adjusted later in
- // ActOnFunctionDeclarator().
- QualType ArgTy = Param->getTypeSourceInfo()->getType();
+ QualType ArgTy = Param->getType();
assert(!ArgTy.isNull() && "Couldn't parse type?");
+ // Adjust the parameter type.
+ assert((ArgTy == Context.getAdjustedParameterType(ArgTy)) &&
+ "Unadjusted type?");
+
// Look for 'void'. void is allowed only as a single argument to a
// function with no other parameters (C99 6.7.5.3p10). We record
// int(void) as a FunctionProtoType with an empty argument list.