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Diffstat (limited to 'lib/Sema/SemaDecl.cpp')
-rw-r--r--lib/Sema/SemaDecl.cpp76
1 files changed, 60 insertions, 16 deletions
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 048dbb68cb..93e07bef62 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -350,8 +350,8 @@ ParsedType Sema::getTypeName(IdentifierInfo &II, SourceLocation NameLoc,
/// isTagName() - This method is called *for error recovery purposes only*
/// to determine if the specified name is a valid tag name ("struct foo"). If
/// so, this returns the TST for the tag corresponding to it (TST_enum,
-/// TST_union, TST_struct, TST_class). This is used to diagnose cases in C
-/// where the user forgot to specify the tag.
+/// TST_union, TST_struct, TST_interface, TST_class). This is used to diagnose
+/// cases in C where the user forgot to specify the tag.
DeclSpec::TST Sema::isTagName(IdentifierInfo &II, Scope *S) {
// Do a tag name lookup in this scope.
LookupResult R(*this, &II, SourceLocation(), LookupTagName);
@@ -361,6 +361,7 @@ DeclSpec::TST Sema::isTagName(IdentifierInfo &II, Scope *S) {
if (const TagDecl *TD = R.getAsSingle<TagDecl>()) {
switch (TD->getTagKind()) {
case TTK_Struct: return DeclSpec::TST_struct;
+ case TTK_Interface: return DeclSpec::TST_interface;
case TTK_Union: return DeclSpec::TST_union;
case TTK_Class: return DeclSpec::TST_class;
case TTK_Enum: return DeclSpec::TST_enum;
@@ -538,6 +539,11 @@ static bool isTagTypeWithMissingTag(Sema &SemaRef, LookupResult &Result,
FixItTagName = "struct ";
break;
+ case TTK_Interface:
+ TagName = "__interface";
+ FixItTagName = "__interface ";
+ break;
+
case TTK_Union:
TagName = "union";
FixItTagName = "union ";
@@ -2604,6 +2610,7 @@ Decl *Sema::ParsedFreeStandingDeclSpec(Scope *S, AccessSpecifier AS,
TagDecl *Tag = 0;
if (DS.getTypeSpecType() == DeclSpec::TST_class ||
DS.getTypeSpecType() == DeclSpec::TST_struct ||
+ DS.getTypeSpecType() == DeclSpec::TST_interface ||
DS.getTypeSpecType() == DeclSpec::TST_union ||
DS.getTypeSpecType() == DeclSpec::TST_enum) {
TagD = DS.getRepAsDecl();
@@ -2642,7 +2649,8 @@ Decl *Sema::ParsedFreeStandingDeclSpec(Scope *S, AccessSpecifier AS,
Diag(DS.getConstexprSpecLoc(), diag::err_constexpr_tag)
<< (DS.getTypeSpecType() == DeclSpec::TST_class ? 0 :
DS.getTypeSpecType() == DeclSpec::TST_struct ? 1 :
- DS.getTypeSpecType() == DeclSpec::TST_union ? 2 : 3);
+ DS.getTypeSpecType() == DeclSpec::TST_interface ? 2 :
+ DS.getTypeSpecType() == DeclSpec::TST_union ? 3 : 4);
else
Diag(DS.getConstexprSpecLoc(), diag::err_constexpr_no_declarators);
// Don't emit warnings after this error.
@@ -2763,6 +2771,7 @@ Decl *Sema::ParsedFreeStandingDeclSpec(Scope *S, AccessSpecifier AS,
DeclSpec::TST TypeSpecType = DS.getTypeSpecType();
if (TypeSpecType == DeclSpec::TST_class ||
TypeSpecType == DeclSpec::TST_struct ||
+ TypeSpecType == DeclSpec::TST_interface ||
TypeSpecType == DeclSpec::TST_union ||
TypeSpecType == DeclSpec::TST_enum) {
AttributeList* attrs = DS.getAttributes().getList();
@@ -2772,7 +2781,8 @@ Decl *Sema::ParsedFreeStandingDeclSpec(Scope *S, AccessSpecifier AS,
<< attrs->getName()
<< (TypeSpecType == DeclSpec::TST_class ? 0 :
TypeSpecType == DeclSpec::TST_struct ? 1 :
- TypeSpecType == DeclSpec::TST_union ? 2 : 3);
+ TypeSpecType == DeclSpec::TST_union ? 2 :
+ TypeSpecType == DeclSpec::TST_interface ? 3 : 4);
attrs = attrs->getNext();
}
}
@@ -5185,6 +5195,14 @@ Sema::ActOnFunctionDeclarator(Scope *S, Declarator &D, DeclContext *DC,
NewFD->setImplicitlyInline();
}
+ // if this is a method defined in an __interface, set pure
+ // (isVirtual will already return true)
+ if (CXXRecordDecl *Parent = dyn_cast<CXXRecordDecl>(
+ NewFD->getDeclContext())) {
+ if (Parent->getTagKind() == TTK_Interface)
+ NewFD->setPure(true);
+ }
+
SetNestedNameSpecifier(NewFD, D);
isExplicitSpecialization = false;
isFunctionTemplateSpecialization = false;
@@ -8118,6 +8136,7 @@ TypedefDecl *Sema::ParseTypedefDecl(Scope *S, Declarator &D, QualType T,
switch (D.getDeclSpec().getTypeSpecType()) {
case TST_enum:
case TST_struct:
+ case TST_interface:
case TST_union:
case TST_class: {
TagDecl *tagFromDeclSpec = cast<TagDecl>(D.getDeclSpec().getRepAsDecl());
@@ -8193,6 +8212,31 @@ bool Sema::CheckEnumRedeclaration(SourceLocation EnumLoc, bool IsScoped,
return false;
}
+/// \brief Get diagnostic %select index for tag kind for
+/// redeclaration diagnostic message.
+/// WARNING: Indexes apply to particular diagnostics only!
+///
+/// \returns diagnostic %select index.
+static unsigned getRedeclDiagFromTagKind(TagTypeKind Tag)
+{
+ switch (Tag) {
+ case TTK_Struct: return 0;
+ case TTK_Interface: return 1;
+ case TTK_Class: return 2;
+ default: assert("Invalid tag kind for redecl diagnostic!");
+ }
+ return -1;
+}
+
+/// \brief Determine if tag kind is a class-key compatible with
+/// class for redeclaration (class, struct, or __interface).
+///
+/// \returns true iff the tag kind is compatible.
+static bool isClassCompatTagKind(TagTypeKind Tag)
+{
+ return Tag == TTK_Struct || Tag == TTK_Class || Tag == TTK_Interface;
+}
+
/// \brief Determine whether a tag with a given kind is acceptable
/// as a redeclaration of the given tag declaration.
///
@@ -8215,12 +8259,11 @@ bool Sema::isAcceptableTagRedeclaration(const TagDecl *Previous,
// struct class-key shall be used to refer to a class (clause 9)
// declared using the class or struct class-key.
TagTypeKind OldTag = Previous->getTagKind();
- if (!isDefinition || (NewTag != TTK_Class && NewTag != TTK_Struct))
+ if (!isDefinition || !isClassCompatTagKind(NewTag))
if (OldTag == NewTag)
return true;
- if ((OldTag == TTK_Struct || OldTag == TTK_Class) &&
- (NewTag == TTK_Struct || NewTag == TTK_Class)) {
+ if (isClassCompatTagKind(OldTag) && isClassCompatTagKind(NewTag)) {
// Warn about the struct/class tag mismatch.
bool isTemplate = false;
if (const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(Previous))
@@ -8230,7 +8273,8 @@ bool Sema::isAcceptableTagRedeclaration(const TagDecl *Previous,
// In a template instantiation, do not offer fix-its for tag mismatches
// since they usually mess up the template instead of fixing the problem.
Diag(NewTagLoc, diag::warn_struct_class_tag_mismatch)
- << (NewTag == TTK_Class) << isTemplate << &Name;
+ << getRedeclDiagFromTagKind(NewTag) << isTemplate << &Name
+ << getRedeclDiagFromTagKind(OldTag);
return true;
}
@@ -8249,13 +8293,13 @@ bool Sema::isAcceptableTagRedeclaration(const TagDecl *Previous,
if (!previousMismatch) {
previousMismatch = true;
Diag(NewTagLoc, diag::warn_struct_class_previous_tag_mismatch)
- << (NewTag == TTK_Class) << isTemplate << &Name;
+ << getRedeclDiagFromTagKind(NewTag) << isTemplate << &Name
+ << getRedeclDiagFromTagKind(I->getTagKind());
}
Diag(I->getInnerLocStart(), diag::note_struct_class_suggestion)
- << (NewTag == TTK_Class)
+ << getRedeclDiagFromTagKind(NewTag)
<< FixItHint::CreateReplacement(I->getInnerLocStart(),
- NewTag == TTK_Class?
- "class" : "struct");
+ TypeWithKeyword::getTagTypeKindName(NewTag));
}
}
return true;
@@ -8271,16 +8315,16 @@ bool Sema::isAcceptableTagRedeclaration(const TagDecl *Previous,
}
Diag(NewTagLoc, diag::warn_struct_class_tag_mismatch)
- << (NewTag == TTK_Class)
- << isTemplate << &Name;
+ << getRedeclDiagFromTagKind(NewTag) << isTemplate << &Name
+ << getRedeclDiagFromTagKind(OldTag);
Diag(Redecl->getLocation(), diag::note_previous_use);
// If there is a previous defintion, suggest a fix-it.
if (Previous->getDefinition()) {
Diag(NewTagLoc, diag::note_struct_class_suggestion)
- << (Redecl->getTagKind() == TTK_Class)
+ << getRedeclDiagFromTagKind(Redecl->getTagKind())
<< FixItHint::CreateReplacement(SourceRange(NewTagLoc),
- Redecl->getTagKind() == TTK_Class? "class" : "struct");
+ TypeWithKeyword::getTagTypeKindName(Redecl->getTagKind()));
}
return true;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-07-25 23:10:56 +0000