Author: Fangrui Song Date: 2020-02-16T20:33:07-08:00 New Revision: c7fa409bcadaf4ddba1862b2e52349e0ab03d1b4
URL: https://github.com/llvm/llvm-project/commit/c7fa409bcadaf4ddba1862b2e52349e0ab03d1b4 DIFF: https://github.com/llvm/llvm-project/commit/c7fa409bcadaf4ddba1862b2e52349e0ab03d1b4.diff LOG: [CUDA][HIP][OpenMP] Add lib/Sema/UsedDeclVisitor.h after D70172 Added: clang/lib/Sema/UsedDeclVisitor.h Modified: Removed: ################################################################################ diff --git a/clang/lib/Sema/UsedDeclVisitor.h b/clang/lib/Sema/UsedDeclVisitor.h new file mode 100644 index 000000000000..440029a1d567 --- /dev/null +++ b/clang/lib/Sema/UsedDeclVisitor.h @@ -0,0 +1,70 @@ +//===- UsedDeclVisitor.h - ODR-used declarations visitor --------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +//===----------------------------------------------------------------------===// +// +// This file defines UsedDeclVisitor, a CRTP class which visits all the +// declarations that are ODR-used by an expression or statement. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_SEMA_USEDDECLVISITOR_H +#define LLVM_CLANG_LIB_SEMA_USEDDECLVISITOR_H + +#include "clang/AST/EvaluatedExprVisitor.h" +#include "clang/Sema/SemaInternal.h" + +namespace clang { +template <class Derived> +class UsedDeclVisitor : public EvaluatedExprVisitor<Derived> { +protected: + Sema &S; + +public: + typedef EvaluatedExprVisitor<Derived> Inherited; + + UsedDeclVisitor(Sema &S) : Inherited(S.Context), S(S) {} + + Derived &asImpl() { return *static_cast<Derived *>(this); } + + void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) { + asImpl().visitUsedDecl( + E->getBeginLoc(), + const_cast<CXXDestructorDecl *>(E->getTemporary()->getDestructor())); + asImpl().Visit(E->getSubExpr()); + } + + void VisitCXXNewExpr(CXXNewExpr *E) { + if (E->getOperatorNew()) + asImpl().visitUsedDecl(E->getBeginLoc(), E->getOperatorNew()); + if (E->getOperatorDelete()) + asImpl().visitUsedDecl(E->getBeginLoc(), E->getOperatorDelete()); + Inherited::VisitCXXNewExpr(E); + } + + void VisitCXXDeleteExpr(CXXDeleteExpr *E) { + if (E->getOperatorDelete()) + asImpl().visitUsedDecl(E->getBeginLoc(), E->getOperatorDelete()); + QualType Destroyed = S.Context.getBaseElementType(E->getDestroyedType()); + if (const RecordType *DestroyedRec = Destroyed->getAs<RecordType>()) { + CXXRecordDecl *Record = cast<CXXRecordDecl>(DestroyedRec->getDecl()); + asImpl().visitUsedDecl(E->getBeginLoc(), S.LookupDestructor(Record)); + } + + Inherited::VisitCXXDeleteExpr(E); + } + + void VisitCXXConstructExpr(CXXConstructExpr *E) { + asImpl().visitUsedDecl(E->getBeginLoc(), E->getConstructor()); + Inherited::VisitCXXConstructExpr(E); + } + + void VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) { + asImpl().Visit(E->getExpr()); + } +}; +} // end namespace clang + +#endif // LLVM_CLANG_LIB_SEMA_USEDDECLVISITOR_H _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
