2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
//===--- StmtViz.cpp - Graphviz visualization for Stmt ASTs -----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements Stmt::viewAST, which generates a Graphviz DOT file
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// that depicts the AST and then calls Graphviz/dot+gv on it.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/StmtGraphTraits.h"
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#include "clang/AST/Decl.h"
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#include "llvm/Support/GraphWriter.h"
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using namespace clang;
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void Stmt::viewAST() const {
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#ifndef NDEBUG
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llvm::ViewGraph(this,"AST");
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#else
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llvm::errs() << "Stmt::viewAST is only available in debug builds on "
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<< "systems with Graphviz or gv!\n";
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#endif
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}
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namespace llvm {
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template<>
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struct DOTGraphTraits<const Stmt*> : public DefaultDOTGraphTraits {
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DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {}
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static std::string getNodeLabel(const Stmt* Node, const Stmt* Graph) {
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#ifndef NDEBUG
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std::string OutSStr;
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llvm::raw_string_ostream Out(OutSStr);
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if (Node)
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Out << Node->getStmtClassName();
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else
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Out << "<NULL>";
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std::string OutStr = Out.str();
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if (OutStr[0] == '\n') OutStr.erase(OutStr.begin());
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// Process string output to make it nicer...
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for (unsigned i = 0; i != OutStr.length(); ++i)
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if (OutStr[i] == '\n') { // Left justify
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OutStr[i] = '\\';
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OutStr.insert(OutStr.begin()+i+1, 'l');
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}
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return OutStr;
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#else
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return "";
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#endif
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}
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};
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} // end namespace llvm
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