| 1 | //===--- ParentMap.h - Mappings from Stmts to their Parents -----*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file defines the ParentMap class. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #ifndef LLVM_CLANG_AST_PARENTMAP_H |
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| 14 | #define LLVM_CLANG_AST_PARENTMAP_H |
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| 15 | |
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| 16 | namespace clang { |
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| 17 | class Stmt; |
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| 18 | class Expr; |
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| 19 | |
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| 20 | class ParentMap { |
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| 21 | void* Impl; |
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| 22 | public: |
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| 23 | ParentMap(Stmt* ASTRoot); |
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| 24 | ~ParentMap(); |
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| 25 | |
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| 26 | /// Adds and/or updates the parent/child-relations of the complete |
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| 27 | /// stmt tree of S. All children of S including indirect descendants are |
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| 28 | /// visited and updated or inserted but not the parents of S. |
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| 29 | void addStmt(Stmt* S); |
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| 30 | |
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| 31 | /// Manually sets the parent of \p S to \p Parent. |
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| 32 | /// |
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| 33 | /// If \p S is already in the map, this method will update the mapping. |
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| 34 | void setParent(const Stmt *S, const Stmt *Parent); |
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| 35 | |
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| 36 | Stmt *getParent(Stmt*) const; |
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| 37 | Stmt *getParentIgnoreParens(Stmt *) const; |
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| 38 | Stmt *getParentIgnoreParenCasts(Stmt *) const; |
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| 39 | Stmt *getParentIgnoreParenImpCasts(Stmt *) const; |
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| 40 | Stmt *getOuterParenParent(Stmt *) const; |
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| 41 | |
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| 42 | const Stmt *getParent(const Stmt* S) const { |
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| 43 | return getParent(const_cast<Stmt*>(S)); |
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| 44 | } |
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| 45 | |
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| 46 | const Stmt *getParentIgnoreParens(const Stmt *S) const { |
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| 47 | return getParentIgnoreParens(const_cast<Stmt*>(S)); |
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| 48 | } |
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| 49 | |
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| 50 | const Stmt *getParentIgnoreParenCasts(const Stmt *S) const { |
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| 51 | return getParentIgnoreParenCasts(const_cast<Stmt*>(S)); |
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| 52 | } |
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| 53 | |
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| 54 | bool hasParent(const Stmt *S) const { return getParent(S) != nullptr; } |
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| 55 | |
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| 56 | bool isConsumedExpr(Expr *E) const; |
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| 57 | |
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| 58 | bool isConsumedExpr(const Expr *E) const { |
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| 59 | return isConsumedExpr(E: const_cast<Expr*>(E)); |
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| 60 | } |
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| 61 | }; |
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| 62 | |
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| 63 | } // end clang namespace |
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| 64 | #endif |
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| 65 | |
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