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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
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
//===--- HTMLPrint.cpp - Source code -> HTML pretty-printing --------------===//
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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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// Pretty-printing of source code to HTML.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/Decl.h"
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Rewrite/Core/HTMLRewrite.h"
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#include "clang/Rewrite/Core/Rewriter.h"
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#include "clang/Rewrite/Frontend/ASTConsumers.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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//===----------------------------------------------------------------------===//
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// Functional HTML pretty-printing.
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//===----------------------------------------------------------------------===//
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namespace {
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class HTMLPrinter : public ASTConsumer {
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Rewriter R;
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std::unique_ptr<raw_ostream> Out;
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Preprocessor &PP;
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bool SyntaxHighlight, HighlightMacros;
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public:
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HTMLPrinter(std::unique_ptr<raw_ostream> OS, Preprocessor &pp,
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bool _SyntaxHighlight, bool _HighlightMacros)
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: Out(std::move(OS)), PP(pp), SyntaxHighlight(_SyntaxHighlight),
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HighlightMacros(_HighlightMacros) {}
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void Initialize(ASTContext &context) override;
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void HandleTranslationUnit(ASTContext &Ctx) override;
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};
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}
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std::unique_ptr<ASTConsumer>
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clang::CreateHTMLPrinter(std::unique_ptr<raw_ostream> OS, Preprocessor &PP,
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bool SyntaxHighlight, bool HighlightMacros) {
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return llvm::make_unique<HTMLPrinter>(std::move(OS), PP, SyntaxHighlight,
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HighlightMacros);
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}
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void HTMLPrinter::Initialize(ASTContext &context) {
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R.setSourceMgr(context.getSourceManager(), context.getLangOpts());
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}
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void HTMLPrinter::HandleTranslationUnit(ASTContext &Ctx) {
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if (PP.getDiagnostics().hasErrorOccurred())
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return;
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// Format the file.
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FileID FID = R.getSourceMgr().getMainFileID();
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const FileEntry* Entry = R.getSourceMgr().getFileEntryForID(FID);
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StringRef Name;
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// In some cases, in particular the case where the input is from stdin,
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// there is no entry. Fall back to the memory buffer for a name in those
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// cases.
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if (Entry)
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Name = Entry->getName();
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else
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Name = R.getSourceMgr().getBuffer(FID)->getBufferIdentifier();
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html::AddLineNumbers(R, FID);
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html::AddHeaderFooterInternalBuiltinCSS(R, FID, Name);
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// If we have a preprocessor, relex the file and syntax highlight.
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// We might not have a preprocessor if we come from a deserialized AST file,
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// for example.
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if (SyntaxHighlight) html::SyntaxHighlight(R, FID, PP);
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if (HighlightMacros) html::HighlightMacros(R, FID, PP);
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html::EscapeText(R, FID, false, true);
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// Emit the HTML.
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const RewriteBuffer &RewriteBuf = R.getEditBuffer(FID);
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std::unique_ptr<char[]> Buffer(new char[RewriteBuf.size()]);
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std::copy(RewriteBuf.begin(), RewriteBuf.end(), Buffer.get());
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Out->write(Buffer.get(), RewriteBuf.size());
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}
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