1*0fca6ea1SDimitry Andric //===- CheckExprLifetime.h ----------------------------------- -*- C++ -*-===// 2*0fca6ea1SDimitry Andric // 3*0fca6ea1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0fca6ea1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0fca6ea1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0fca6ea1SDimitry Andric //===----------------------------------------------------------------------===// 7*0fca6ea1SDimitry Andric // 8*0fca6ea1SDimitry Andric // This files implements a statement-local lifetime analysis. 9*0fca6ea1SDimitry Andric // 10*0fca6ea1SDimitry Andric //===----------------------------------------------------------------------===// 11*0fca6ea1SDimitry Andric 12*0fca6ea1SDimitry Andric #ifndef LLVM_CLANG_SEMA_CHECK_EXPR_LIFETIME_H 13*0fca6ea1SDimitry Andric #define LLVM_CLANG_SEMA_CHECK_EXPR_LIFETIME_H 14*0fca6ea1SDimitry Andric 15*0fca6ea1SDimitry Andric #include "clang/AST/Expr.h" 16*0fca6ea1SDimitry Andric #include "clang/Sema/Initialization.h" 17*0fca6ea1SDimitry Andric #include "clang/Sema/Sema.h" 18*0fca6ea1SDimitry Andric 19*0fca6ea1SDimitry Andric namespace clang::sema { 20*0fca6ea1SDimitry Andric 21*0fca6ea1SDimitry Andric /// Describes an entity that is being assigned. 22*0fca6ea1SDimitry Andric struct AssignedEntity { 23*0fca6ea1SDimitry Andric // The left-hand side expression of the assignment. 24*0fca6ea1SDimitry Andric Expr *LHS = nullptr; 25*0fca6ea1SDimitry Andric }; 26*0fca6ea1SDimitry Andric 27*0fca6ea1SDimitry Andric /// Check that the lifetime of the given expr (and its subobjects) is 28*0fca6ea1SDimitry Andric /// sufficient for initializing the entity, and perform lifetime extension 29*0fca6ea1SDimitry Andric /// (when permitted) if not. 30*0fca6ea1SDimitry Andric void checkExprLifetime(Sema &SemaRef, const InitializedEntity &Entity, 31*0fca6ea1SDimitry Andric Expr *Init); 32*0fca6ea1SDimitry Andric 33*0fca6ea1SDimitry Andric /// Check that the lifetime of the given expr (and its subobjects) is 34*0fca6ea1SDimitry Andric /// sufficient for assigning to the entity. 35*0fca6ea1SDimitry Andric void checkExprLifetime(Sema &SemaRef, const AssignedEntity &Entity, Expr *Init); 36*0fca6ea1SDimitry Andric 37*0fca6ea1SDimitry Andric } // namespace clang::sema 38*0fca6ea1SDimitry Andric 39*0fca6ea1SDimitry Andric #endif // LLVM_CLANG_SEMA_CHECK_EXPR_LIFETIME_H 40