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92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef TOOLS_GN_PATH_OUTPUT_H_
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#define TOOLS_GN_PATH_OUTPUT_H_
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#include <iosfwd>
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#include <string>
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#include "base/macros.h"
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#include "base/strings/string_piece.h"
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#include "tools/gn/escape.h"
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#include "tools/gn/source_dir.h"
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#include "tools/gn/unique_vector.h"
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class OutputFile;
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class SourceFile;
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namespace base {
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class FilePath;
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}
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// Writes file names to streams assuming a certain input directory and
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// escaping rules. This gives us a central place for managing this state.
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class PathOutput {
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public:
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// Controls whether writing directory names include the trailing slash.
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// Often we don't want the trailing slash when writing out to a command line,
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// especially on Windows where it's a backslash and might be interpreted as
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// escaping the thing following it.
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enum DirSlashEnding {
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DIR_INCLUDE_LAST_SLASH,
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DIR_NO_LAST_SLASH,
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};
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PathOutput(const SourceDir& current_dir, const base::StringPiece& source_root,
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EscapingMode escaping);
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~PathOutput();
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// Read-only since inverse_current_dir_ is computed depending on this.
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EscapingMode escaping_mode() const { return options_.mode; }
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const SourceDir& current_dir() const { return current_dir_; }
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// Getter/setters for flags inside the escape options.
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bool inhibit_quoting() const { return options_.inhibit_quoting; }
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void set_inhibit_quoting(bool iq) { options_.inhibit_quoting = iq; }
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void set_escape_platform(EscapingPlatform p) { options_.platform = p; }
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void WriteFile(std::ostream& out, const SourceFile& file) const;
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void WriteFile(std::ostream& out, const OutputFile& file) const;
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void WriteFile(std::ostream& out, const base::FilePath& file) const;
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// Writes the given OutputFiles with spaces separating them. This will also
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// write an initial space before the first item.
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void WriteFiles(std::ostream& out,
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const std::vector<OutputFile>& files) const;
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void WriteFiles(std::ostream& out,
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const UniqueVector<OutputFile>& files) const;
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// This variant assumes the dir ends in a trailing slash or is empty.
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void WriteDir(std::ostream& out,
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const SourceDir& dir,
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DirSlashEnding slash_ending) const;
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void WriteDir(std::ostream& out,
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const OutputFile& file,
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DirSlashEnding slash_ending) const;
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// Backend for WriteFile and WriteDir. This appends the given file or
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// directory string to the file.
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void WritePathStr(std::ostream& out, const base::StringPiece& str) const;
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private:
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// Takes the given string and writes it out, appending to the inverse
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// current dir. This assumes leading slashes have been trimmed.
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void WriteSourceRelativeString(std::ostream& out,
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const base::StringPiece& str) const;
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SourceDir current_dir_;
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// Uses system slashes if convert_slashes_to_system_.
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std::string inverse_current_dir_;
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// Since the inverse_current_dir_ depends on some of these, we don't expose
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// this directly to modification.
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EscapeOptions options_;
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};
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#endif // TOOLS_GN_PATH_OUTPUT_H_
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