/// no formals.
ParmVarDecl **ParamInfo;
- /// DeclsInPrototypeScope - Array of pointers to NamedDecls for
- /// decls defined in the function prototype that are not parameters. E.g.
- /// 'enum Y' in 'void f(enum Y {AA} x) {}'.
- llvm::ArrayRef<NamedDecl*> DeclsInPrototypeScope;
-
LazyDeclStmtPtr Body;
// FIXME: This can be packed into the bitfields in Decl.
setParams(getASTContext(), NewParamInfo);
}
- const llvm::ArrayRef<NamedDecl*> &getDeclsInPrototypeScope() const {
- return DeclsInPrototypeScope;
- }
- void setDeclsInPrototypeScope(llvm::ArrayRef<NamedDecl *> NewDecls);
-
/// getMinRequiredArguments - Returns the minimum number of arguments
/// needed to call this function. This may be fewer than the number of
/// function parameters, if some of the parameters have default
def VexingParse : DiagGroup<"vexing-parse">;
def VLA : DiagGroup<"vla">;
def VolatileRegisterVar : DiagGroup<"volatile-register-var">;
-def Visibility : DiagGroup<"visibility">;
// GCC calls -Wdeprecated-writable-strings -Wwrite-strings.
def GCCWriteStrings : DiagGroup<"write-strings" , [DeprecatedWritableStr]>;
def warn_unused_exception_param : Warning<"unused exception parameter %0">,
InGroup<UnusedExceptionParameter>, DefaultIgnore;
def warn_decl_in_param_list : Warning<
- "declaration of %0 will not be visible outside of this function">,
- InGroup<Visibility>;
-def warn_redefinition_in_param_list : Warning<
- "redefinition of %0 will not be visible outside of this function">,
- InGroup<Visibility>;
+ "declaration of %0 will not be visible outside of this function">;
def warn_empty_parens_are_function_decl : Warning<
"empty parentheses interpreted as a function declaration">,
InGroup<VexingParse>;
/// \brief Determine whether this scope is a C++ 'try' block.
bool isTryScope() const { return getFlags() & Scope::TryScope; }
- /// containedInPrototypeScope - Return true if this or a parent scope
- /// is a FunctionPrototypeScope.
- bool containedInPrototypeScope() const;
-
typedef UsingDirectivesTy::iterator udir_iterator;
typedef UsingDirectivesTy::const_iterator const_udir_iterator;
// Symbol table / Decl tracking callbacks: SemaDecl.cpp.
//
- /// List of decls defined in a function prototype. This contains EnumConstants
- /// that incorrectly end up in translation unit scope because there is no
- /// function to pin them on. ActOnFunctionDeclarator reads this list and patches
- /// them into the FunctionDecl.
- std::vector<NamedDecl*> DeclsInPrototypeScope;
- bool InFunctionDeclarator;
-
DeclGroupPtrTy ConvertDeclToDeclGroup(Decl *Ptr, Decl *OwnedType = 0);
void DiagnoseUseOfUnimplementedSelectors();
// Returns true if the variable declaration is a redeclaration
bool CheckVariableDeclaration(VarDecl *NewVD, LookupResult &Previous);
void CheckCompleteVariableDeclaration(VarDecl *var);
- void ActOnStartFunctionDeclarator();
NamedDecl* ActOnFunctionDeclarator(Scope* S, Declarator& D, DeclContext* DC,
TypeSourceInfo *TInfo,
LookupResult &Previous,
}
}
-void FunctionDecl::setDeclsInPrototypeScope(llvm::ArrayRef<NamedDecl *> NewDecls) {
- assert(DeclsInPrototypeScope.empty() && "Already has prototype decls!");
-
- if (!NewDecls.empty()) {
- NamedDecl **A = new (getASTContext()) NamedDecl*[NewDecls.size()];
- std::copy(NewDecls.begin(), NewDecls.end(), A);
- DeclsInPrototypeScope = llvm::ArrayRef<NamedDecl*>(A, NewDecls.size());
- }
-}
-
/// getMinRequiredArguments - Returns the minimum number of arguments
/// needed to call this function. This may be fewer than the number of
/// function parameters, if some of the parameters have default
for (FunctionDecl::param_iterator
I = D->param_begin(), E = D->param_end(); I != E; ++I)
dispatch(*I);
- for (llvm::ArrayRef<NamedDecl*>::iterator
- I = D->getDeclsInPrototypeScope().begin(), E = D->getDeclsInPrototypeScope().end();
- I != E; ++I)
- dispatch(*I);
if (D->doesThisDeclarationHaveABody())
dispatch(D->getBody());
}
ExprResult NoexceptExpr;
ParsedType TrailingReturnType;
- Actions.ActOnStartFunctionDeclarator();
-
SourceLocation EndLoc;
if (isFunctionDeclaratorIdentifierList()) {
if (RequiresArg)
bool ExplicitInstantiationOrSpecialization) const {
Ctx = Ctx->getRedeclContext();
- if (Ctx->isFunctionOrMethod() || S->isFunctionPrototypeScope()) {
+ if (Ctx->isFunctionOrMethod()) {
// Ignore the scopes associated within transparent declaration contexts.
while (S->getEntity() &&
((DeclContext *)S->getEntity())->isTransparentContext())
Entity = 0;
ErrorTrap.reset();
}
-
-bool Scope::containedInPrototypeScope() const {
- const Scope *S = this;
- while (S) {
- if (S->isFunctionPrototypeScope())
- return true;
- S = S->getParent();
- }
- return false;
-}
ObjCShouldCallSuperDealloc(false),
ObjCShouldCallSuperFinalize(false),
TUKind(TUKind),
- NumSFINAEErrors(0), InFunctionDeclarator(false), SuppressAccessChecking(false),
+ NumSFINAEErrors(0), SuppressAccessChecking(false),
AccessCheckingSFINAE(false), InNonInstantiationSFINAEContext(false),
NonInstantiationEntries(0), ArgumentPackSubstitutionIndex(-1),
CurrentInstantiationScope(0), TyposCorrected(0),
}
}
-void Sema::ActOnStartFunctionDeclarator() {
- InFunctionDeclarator = true;
-}
-
/// \brief Look for an Objective-C class in the translation unit.
///
/// \param Id The name of the Objective-C class we're looking for. If
assert(R.getTypePtr()->isFunctionType());
- InFunctionDeclarator = false;
-
// TODO: consider using NameInfo for diagnostic.
DeclarationNameInfo NameInfo = GetNameForDeclarator(D);
DeclarationName Name = NameInfo.getName();
// Finally, we know we have the right number of parameters, install them.
NewFD->setParams(Params);
- // Find all anonymous symbols defined during the declaration of this function
- // and add to NewFD. This lets us track decls such 'enum Y' in:
- //
- // void f(enum Y {AA} x) {}
- //
- // which would otherwise incorrectly end up in the translation unit scope.
- NewFD->setDeclsInPrototypeScope(DeclsInPrototypeScope);
- DeclsInPrototypeScope.clear();
-
// Process the non-inheritable attributes on this declaration.
ProcessDeclAttributes(S, NewFD, D,
/*NonInheritable=*/true, /*Inheritable=*/false);
}
}
- // If we had any tags defined in the function prototype,
- // introduce them into the function scope.
- if (FnBodyScope) {
- for (llvm::ArrayRef<NamedDecl*>::iterator I = FD->getDeclsInPrototypeScope().begin(),
- E = FD->getDeclsInPrototypeScope().end(); I != E; ++I) {
- NamedDecl *D = *I;
-
- // Some of these decls (like enums) may have been pinned to the translation unit
- // for lack of a real context earlier. If so, remove from the translation unit
- // and reattach to the current context.
- if (D->getLexicalDeclContext() == Context.getTranslationUnitDecl()) {
- // Is the decl actually in the context?
- for (DeclContext::decl_iterator DI = Context.getTranslationUnitDecl()->decls_begin(),
- DE = Context.getTranslationUnitDecl()->decls_end(); DI != DE; ++DI) {
- if (*DI == D) {
- Context.getTranslationUnitDecl()->removeDecl(D);
- break;
- }
- }
- // Either way, reassign the lexical decl context to our FunctionDecl.
- D->setLexicalDeclContext(CurContext);
- }
-
- // If the decl has a non-null name, make accessible in the current scope.
- if (!D->getName().empty())
- PushOnScopeChains(D, FnBodyScope, /*AddToContext=*/false);
-
- // Similarly, dive into enums and fish their constants out, making them
- // accessible in this scope.
- if (EnumDecl *ED = dyn_cast<EnumDecl>(D)) {
- for (EnumDecl::enumerator_iterator EI = ED->enumerator_begin(),
- EE = ED->enumerator_end(); EI != EE; ++EI)
- PushOnScopeChains(*EI, FnBodyScope, /*AddToContext=*/false);
- }
- }
- }
-
// Checking attributes of current function definition
// dllimport attribute.
DLLImportAttr *DA = FD->getAttr<DLLImportAttr>();
!isa<CXXRecordDecl>(Def) ||
cast<CXXRecordDecl>(Def)->getTemplateSpecializationKind()
== TSK_ExplicitSpecialization) {
- // A redeclaration in function prototype scope in C isn't
- // visible elsewhere, so merely issue a warning.
- if (!getLangOptions().CPlusPlus && S->containedInPrototypeScope())
- Diag(NameLoc, diag::warn_redefinition_in_param_list) << Name;
- else
- Diag(NameLoc, diag::err_redefinition) << Name;
+ Diag(NameLoc, diag::err_redefinition) << Name;
Diag(Def->getLocation(), diag::note_previous_definition);
// If this is a redefinition, recover by making this
// struct be anonymous, which will make any later
II->isStr("FILE"))
Context.setFILEDecl(New);
- // If we were in function prototype scope (and not in C++ mode), add this
- // tag to the list of decls to inject into the function definition scope.
- if (S->isFunctionPrototypeScope() && !getLangOptions().CPlusPlus &&
- InFunctionDeclarator && Name)
- DeclsInPrototypeScope.push_back(New);
-
OwnedDecl = true;
return New;
}
Enum->completeDefinition(BestType, BestPromotionType,
NumPositiveBits, NumNegativeBits);
-
- // If we're declaring a function, ensure this decl isn't forgotten about -
- // it needs to go into the function scope.
- if (InFunctionDeclarator)
- DeclsInPrototypeScope.push_back(Enum);
-
}
Decl *Sema::ActOnFileScopeAsmDecl(Expr *expr,
+++ /dev/null
-// RUN: %clang -emit-llvm -S -o - %s | FileCheck %s
-
-const int AA = 5;
-
-// CHECK: define i32 @f1
-int f1(enum {AA,BB} E) {
- // CHECK: ret i32 1
- return BB;
-}
-
-// CHECK: define i32 @f2
-int f2(enum {AA=7,BB} E) {
- // CHECK: ret i32 7
- return AA;
-}
The list of warnings below should NEVER grow. It should gradually shrink to 0.
-CHECK: Warnings without flags (256):
+CHECK: Warnings without flags (257):
CHECK-NEXT: ext_anonymous_struct_union_qualified
CHECK-NEXT: ext_binary_literal
CHECK-NEXT: ext_cast_fn_obj
CHECK-NEXT: warn_conv_to_self_not_used
CHECK-NEXT: warn_conv_to_void_not_used
CHECK-NEXT: warn_cxx0x_right_shift_in_template_arg
+CHECK-NEXT: warn_decl_in_param_list
CHECK-NEXT: warn_delete_array_type
CHECK-NEXT: warn_division_by_zero
CHECK-NEXT: warn_double_const_requires_fp64
+++ /dev/null
-// RUN: %clang_cc1_only -verify %s
-
-const int AA = 5;
-
-int f1(enum {AA,BB} E) {
- return BB;
-}
-
-int f2(enum {AA=7,BB} E) {
- return AA;
-}
-
-struct a {
-};
-
-int f3(struct a { } *); // expected-warning {{will not be visible outside of this function}}
-
-struct A { struct b { int j; } t; }; // expected-note {{previous definition is here}}
-
-int f4(struct A { struct b { int j; } t; } *); // expected-warning {{declaration of 'struct A' will not be visible outside of this function}} expected-warning {{redefinition of 'b' will not be visible outside of this function}}
-
-struct aA {
- struct ab { // expected-note {{previous definition is here}} expected-note {{previous definition is here}}
- int j;
- } b;
-};
-
-int f5(struct aA { struct ab { int j; } b; struct ab { char glorx; } glorx; } *); // expected-warning {{declaration of 'struct aA' will not be visible}} expected-warning {{redefinition of 'ab' will not be visible}} expected-warning {{redefinition of 'ab' will not be visible}}
-
-void f6(struct z {int b;} c) { // expected-warning {{declaration of 'struct z' will not be visible outside of this function}}
- struct z d;
- d.b = 4;
-}
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