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diff --git a/include/clang/Sema/DelayedDiagnostic.h b/include/clang/Sema/DelayedDiagnostic.h
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-//===--- DelayedDiagnostic.h - Delayed declarator diagnostics ---*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \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_DELAYEDDIAGNOSTIC_H
-#define LLVM_CLANG_SEMA_DELAYEDDIAGNOSTIC_H
-
-#include "clang/Sema/Sema.h"
-
-namespace clang {
-namespace sema {
-
-/// A declaration being accessed, together with information about how
-/// it was accessed.
-class AccessedEntity {
-public:
- /// A member declaration found through lookup. The target is the
- /// member.
- enum MemberNonce { Member };
-
- /// A hierarchy (base-to-derived or derived-to-base) conversion.
- /// The target is the base class.
- enum BaseNonce { Base };
-
- bool isMemberAccess() const { return IsMember; }
-
- 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, Allocator) {
- }
-
- AccessedEntity(PartialDiagnostic::StorageAllocator &Allocator,
- BaseNonce _,
- CXXRecordDecl *BaseClass,
- CXXRecordDecl *DerivedClass,
- AccessSpecifier Access)
- : Access(Access), IsMember(false),
- Target(BaseClass),
- NamingClass(DerivedClass),
- Diag(0, Allocator) {
- }
-
- bool isQuiet() const { return Diag.getDiagID() == 0; }
-
- AccessSpecifier getAccess() const { return AccessSpecifier(Access); }
-
- // These apply to member decls...
- NamedDecl *getTargetDecl() const { return Target; }
- CXXRecordDecl *getNamingClass() const { return NamingClass; }
-
- // ...and these apply to hierarchy conversions.
- CXXRecordDecl *getBaseClass() const {
- assert(!IsMember); return cast<CXXRecordDecl>(Target);
- }
- CXXRecordDecl *getDerivedClass() const { return NamingClass; }
-
- /// Retrieves the base object type, important when accessing
- /// an instance member.
- QualType getBaseObjectType() const { return BaseObjectType; }
-
- /// Sets a diagnostic to be performed. The diagnostic is given
- /// four (additional) arguments:
- /// %0 - 0 if the entity was private, 1 if protected
- /// %1 - the DeclarationName of the entity
- /// %2 - the TypeDecl type of the naming class
- /// %3 - the TypeDecl type of the declaring class
- void setDiag(const PartialDiagnostic &PDiag) {
- assert(isQuiet() && "partial diagnostic already defined");
- Diag = PDiag;
- }
- PartialDiagnostic &setDiag(unsigned DiagID) {
- assert(isQuiet() && "partial diagnostic already defined");
- assert(DiagID && "creating null diagnostic");
- Diag.Reset(DiagID);
- return Diag;
- }
- const PartialDiagnostic &getDiag() const {
- return Diag;
- }
-
-private:
- unsigned Access : 2;
- unsigned IsMember : 1;
- NamedDecl *Target;
- CXXRecordDecl *NamingClass;
- QualType BaseObjectType;
- PartialDiagnostic Diag;
-};
-
-/// A diagnostic message which has been conditionally emitted pending
-/// the complete parsing of the current declaration.
-class DelayedDiagnostic {
-public:
- enum DDKind { Deprecation, Unavailable, Access, ForbiddenType };
-
- unsigned char Kind; // actually a DDKind
- bool Triggered;
-
- SourceLocation Loc;
-
- 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 makeAccess(SourceLocation Loc,
- const AccessedEntity &Entity) {
- DelayedDiagnostic DD;
- DD.Kind = Access;
- DD.Triggered = false;
- DD.Loc = Loc;
- new (&DD.getAccessData()) 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 AccessedEntity &getAccessData() const {
- assert(Kind == Access && "Not an access diagnostic.");
- return *reinterpret_cast<const AccessedEntity*>(AccessData);
- }
-
- const NamedDecl *getDeprecationDecl() const {
- assert((Kind == Deprecation || Kind == Unavailable) &&
- "Not a deprecation diagnostic.");
- return DeprecationData.Decl;
- }
-
- 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 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 &) = delete;
- void operator=(const DelayedDiagnosticPool &) = delete;
-public:
- DelayedDiagnosticPool(const DelayedDiagnosticPool *parent) : Parent(parent) {}
- ~DelayedDiagnosticPool() {
- for (SmallVectorImpl<DelayedDiagnostic>::iterator
- i = Diagnostics.begin(), e = Diagnostics.end(); i != e; ++i)
- i->Destroy();
- }
-
- DelayedDiagnosticPool(DelayedDiagnosticPool &&Other)
- : Parent(Other.Parent), Diagnostics(std::move(Other.Diagnostics)) {
- Other.Diagnostics.clear();
- }
- DelayedDiagnosticPool &operator=(DelayedDiagnosticPool &&Other) {
- Parent = Other.Parent;
- Diagnostics = std::move(Other.Diagnostics);
- Other.Diagnostics.clear();
- return *this;
- }
-
- 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
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