// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
-//
-// This file defines the DelayedDiagnostic class, which is used to
-// record diagnostics that are being conditionally produced during
-// declarator parsing. Certain kinds of diagnostics --- notably
-// deprecation and access control --- are suppressed based on
-// semantic properties of the parsed declaration that aren't known
-// until it is fully parsed.
-//
-// This file also defines AccessedEntity.
-//
+///
+/// \file
+/// \brief Defines the classes clang::DelayedDiagnostic and
+/// clang::AccessedEntity.
+///
+/// DelayedDiangostic is used to record diagnostics that are being
+/// conditionally produced during declarator parsing. Certain kinds of
+/// diagnostics -- notably deprecation and access control -- are suppressed
+/// based on semantic properties of the parsed declaration that aren't known
+/// until it is fully parsed.
+///
//===----------------------------------------------------------------------===//
-#ifndef LLVM_CLANG_SEMA_DELAYED_DIAGNOSTIC_H
-#define LLVM_CLANG_SEMA_DELAYED_DIAGNOSTIC_H
+#ifndef LLVM_CLANG_SEMA_DELAYEDDIAGNOSTIC_H
+#define LLVM_CLANG_SEMA_DELAYEDDIAGNOSTIC_H
-#include "clang/AST/DeclCXX.h"
+#include "clang/Sema/Sema.h"
namespace clang {
namespace sema {
bool isMemberAccess() const { return IsMember; }
- AccessedEntity(ASTContext &Context,
+ AccessedEntity(PartialDiagnostic::StorageAllocator &Allocator,
MemberNonce _,
CXXRecordDecl *NamingClass,
DeclAccessPair FoundDecl,
QualType BaseObjectType)
: Access(FoundDecl.getAccess()), IsMember(true),
Target(FoundDecl.getDecl()), NamingClass(NamingClass),
- BaseObjectType(BaseObjectType), Diag(0, Context.getDiagAllocator()) {
+ BaseObjectType(BaseObjectType), Diag(0, Allocator) {
}
- AccessedEntity(ASTContext &Context,
+ AccessedEntity(PartialDiagnostic::StorageAllocator &Allocator,
BaseNonce _,
CXXRecordDecl *BaseClass,
CXXRecordDecl *DerivedClass,
: Access(Access), IsMember(false),
Target(BaseClass),
NamingClass(DerivedClass),
- Diag(0, Context.getDiagAllocator()) {
+ Diag(0, Allocator) {
}
bool isQuiet() const { return Diag.getDiagID() == 0; }
private:
unsigned Access : 2;
- bool IsMember;
+ unsigned IsMember : 1;
NamedDecl *Target;
CXXRecordDecl *NamingClass;
QualType BaseObjectType;
/// the complete parsing of the current declaration.
class DelayedDiagnostic {
public:
- enum DDKind { Deprecation, Access };
+ enum DDKind { Deprecation, Unavailable, Access, ForbiddenType };
unsigned char Kind; // actually a DDKind
bool Triggered;
SourceLocation Loc;
- void destroy() {
- switch (Kind) {
- case Access: getAccessData().~AccessedEntity(); break;
- case Deprecation: break;
- }
- }
+ void Destroy();
+
+ static DelayedDiagnostic makeAvailability(Sema::AvailabilityDiagnostic AD,
+ SourceLocation Loc,
+ const NamedDecl *D,
+ const ObjCInterfaceDecl *UnknownObjCClass,
+ const ObjCPropertyDecl *ObjCProperty,
+ StringRef Msg,
+ bool ObjCPropertyAccess);
- static DelayedDiagnostic makeDeprecation(SourceLocation Loc,
- const NamedDecl *D,
- llvm::StringRef Msg) {
- DelayedDiagnostic DD;
- DD.Kind = Deprecation;
- DD.Triggered = false;
- DD.Loc = Loc;
- DD.DeprecationData.Decl = D;
- DD.DeprecationData.Message = Msg.data();
- DD.DeprecationData.MessageLen = Msg.size();
- return DD;
- }
static DelayedDiagnostic makeAccess(SourceLocation Loc,
const AccessedEntity &Entity) {
return DD;
}
+ static DelayedDiagnostic makeForbiddenType(SourceLocation loc,
+ unsigned diagnostic,
+ QualType type,
+ unsigned argument) {
+ DelayedDiagnostic DD;
+ DD.Kind = ForbiddenType;
+ DD.Triggered = false;
+ DD.Loc = loc;
+ DD.ForbiddenTypeData.Diagnostic = diagnostic;
+ DD.ForbiddenTypeData.OperandType = type.getAsOpaquePtr();
+ DD.ForbiddenTypeData.Argument = argument;
+ return DD;
+ }
+
AccessedEntity &getAccessData() {
assert(Kind == Access && "Not an access diagnostic.");
return *reinterpret_cast<AccessedEntity*>(AccessData);
}
const NamedDecl *getDeprecationDecl() const {
- assert(Kind == Deprecation && "Not a deprecation diagnostic.");
+ assert((Kind == Deprecation || Kind == Unavailable) &&
+ "Not a deprecation diagnostic.");
return DeprecationData.Decl;
}
- llvm::StringRef getDeprecationMessage() const {
- assert(Kind == Deprecation && "Not a deprecation diagnostic.");
- return llvm::StringRef(DeprecationData.Message,
+ StringRef getDeprecationMessage() const {
+ assert((Kind == Deprecation || Kind == Unavailable) &&
+ "Not a deprecation diagnostic.");
+ return StringRef(DeprecationData.Message,
DeprecationData.MessageLen);
}
+ /// The diagnostic ID to emit. Used like so:
+ /// Diag(diag.Loc, diag.getForbiddenTypeDiagnostic())
+ /// << diag.getForbiddenTypeOperand()
+ /// << diag.getForbiddenTypeArgument();
+ unsigned getForbiddenTypeDiagnostic() const {
+ assert(Kind == ForbiddenType && "not a forbidden-type diagnostic");
+ return ForbiddenTypeData.Diagnostic;
+ }
+
+ unsigned getForbiddenTypeArgument() const {
+ assert(Kind == ForbiddenType && "not a forbidden-type diagnostic");
+ return ForbiddenTypeData.Argument;
+ }
+
+ QualType getForbiddenTypeOperand() const {
+ assert(Kind == ForbiddenType && "not a forbidden-type diagnostic");
+ return QualType::getFromOpaquePtr(ForbiddenTypeData.OperandType);
+ }
+
+ const ObjCInterfaceDecl *getUnknownObjCClass() const {
+ return DeprecationData.UnknownObjCClass;
+ }
+
+ const ObjCPropertyDecl *getObjCProperty() const {
+ return DeprecationData.ObjCProperty;
+ }
+
+ bool getObjCPropertyAccess() const {
+ return DeprecationData.ObjCPropertyAccess;
+ }
+
private:
+
+ struct DD {
+ const NamedDecl *Decl;
+ const ObjCInterfaceDecl *UnknownObjCClass;
+ const ObjCPropertyDecl *ObjCProperty;
+ const char *Message;
+ size_t MessageLen;
+ bool ObjCPropertyAccess;
+ };
+
+ struct FTD {
+ unsigned Diagnostic;
+ unsigned Argument;
+ void *OperandType;
+ };
+
union {
- /// Deprecation.
- struct {
- const NamedDecl *Decl;
- const char *Message;
- size_t MessageLen;
- } DeprecationData;
+ /// Deprecation
+ struct DD DeprecationData;
+ struct FTD ForbiddenTypeData;
/// Access control.
char AccessData[sizeof(AccessedEntity)];
};
};
+/// \brief A collection of diagnostics which were delayed.
+class DelayedDiagnosticPool {
+ const DelayedDiagnosticPool *Parent;
+ SmallVector<DelayedDiagnostic, 4> Diagnostics;
+
+ DelayedDiagnosticPool(const DelayedDiagnosticPool &) LLVM_DELETED_FUNCTION;
+ void operator=(const DelayedDiagnosticPool &) LLVM_DELETED_FUNCTION;
+public:
+ DelayedDiagnosticPool(const DelayedDiagnosticPool *parent) : Parent(parent) {}
+ ~DelayedDiagnosticPool() {
+ for (SmallVectorImpl<DelayedDiagnostic>::iterator
+ i = Diagnostics.begin(), e = Diagnostics.end(); i != e; ++i)
+ i->Destroy();
+ }
+
+ const DelayedDiagnosticPool *getParent() const { return Parent; }
+
+ /// Does this pool, or any of its ancestors, contain any diagnostics?
+ bool empty() const {
+ return (Diagnostics.empty() && (!Parent || Parent->empty()));
+ }
+
+ /// Add a diagnostic to this pool.
+ void add(const DelayedDiagnostic &diag) {
+ Diagnostics.push_back(diag);
+ }
+
+ /// Steal the diagnostics from the given pool.
+ void steal(DelayedDiagnosticPool &pool) {
+ if (pool.Diagnostics.empty()) return;
+
+ if (Diagnostics.empty()) {
+ Diagnostics = std::move(pool.Diagnostics);
+ } else {
+ Diagnostics.append(pool.pool_begin(), pool.pool_end());
+ }
+ pool.Diagnostics.clear();
+ }
+
+ typedef SmallVectorImpl<DelayedDiagnostic>::const_iterator pool_iterator;
+ pool_iterator pool_begin() const { return Diagnostics.begin(); }
+ pool_iterator pool_end() const { return Diagnostics.end(); }
+ bool pool_empty() const { return Diagnostics.empty(); }
+};
+
+}
+
+/// Add a diagnostic to the current delay pool.
+inline void Sema::DelayedDiagnostics::add(const sema::DelayedDiagnostic &diag) {
+ assert(shouldDelayDiagnostics() && "trying to delay without pool");
+ CurPool->add(diag);
}
+
+
}
#endif
projects / clang / blobdiff