//===- StmtGraphTraits.h - Graph Traits for the class Stmt ------*- 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 a template specialization of llvm::GraphTraits to // treat ASTs (Stmt*) as graphs // //===----------------------------------------------------------------------===// #ifndef LLVM_CLANG_AST_STMTGRAPHTRAITS_H #define LLVM_CLANG_AST_STMTGRAPHTRAITS_H #include "clang/AST/Stmt.h" #include "llvm/ADT/DepthFirstIterator.h" #include "llvm/ADT/GraphTraits.h" namespace llvm { template <> struct GraphTraits<clang::Stmt *> { using NodeRef = clang::Stmt *; using ChildIteratorType = clang::Stmt::child_iterator; using nodes_iterator = llvm::df_iterator<clang::Stmt *>; static NodeRef getEntryNode(clang::Stmt *S) { return S; } static ChildIteratorType child_begin(NodeRef N) { if (N) return N->child_begin(); else return ChildIteratorType(); } static ChildIteratorType child_end(NodeRef N) { if (N) return N->child_end(); else return ChildIteratorType(); } static nodes_iterator nodes_begin(clang::Stmt* S) { return df_begin(S); } static nodes_iterator nodes_end(clang::Stmt* S) { return df_end(S); } }; template <> struct GraphTraits<const clang::Stmt *> { using NodeRef = const clang::Stmt *; using ChildIteratorType = clang::Stmt::const_child_iterator; using nodes_iterator = llvm::df_iterator<const clang::Stmt *>; static NodeRef getEntryNode(const clang::Stmt *S) { return S; } static ChildIteratorType child_begin(NodeRef N) { if (N) return N->child_begin(); else return ChildIteratorType(); } static ChildIteratorType child_end(NodeRef N) { if (N) return N->child_end(); else return ChildIteratorType(); } static nodes_iterator nodes_begin(const clang::Stmt* S) { return df_begin(S); } static nodes_iterator nodes_end(const clang::Stmt* S) { return df_end(S); } }; } // namespace llvm #endif // LLVM_CLANG_AST_STMTGRAPHTRAITS_H |