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77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
// Copyright 2014 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_LABEL_PATTERN_H_
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#define TOOLS_GN_LABEL_PATTERN_H_
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#include "base/strings/string_piece.h"
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#include "tools/gn/label.h"
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#include "tools/gn/source_dir.h"
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class Err;
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class Value;
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extern const char kLabelPattern_Help[];
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// A label pattern is a simple pattern that matches labels. It is used for
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// specifying visibility and other times when multiple targets need to be
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// referenced.
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class LabelPattern {
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public:
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enum Type {
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MATCH = 1, // Exact match for a given target.
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DIRECTORY, // Only targets in the file in the given directory.
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RECURSIVE_DIRECTORY // The given directory and any subdir.
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// (also indicates "public" when dir is empty).
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};
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LabelPattern();
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LabelPattern(Type type,
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const SourceDir& dir,
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const base::StringPiece& name,
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const Label& toolchain_label);
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LabelPattern(const LabelPattern& other);
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~LabelPattern();
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// Converts the given input string to a pattern. This does special stuff
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// to treat the pattern as a label. Sets the error on failure.
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static LabelPattern GetPattern(const SourceDir& current_dir,
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const Value& value,
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Err* err);
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// Returns true if the given input string might match more than one thing.
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static bool HasWildcard(const std::string& str);
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// Returns true if this pattern matches the given label.
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bool Matches(const Label& label) const;
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// Returns a string representation of this pattern.
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std::string Describe() const;
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Type type() const { return type_; }
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const SourceDir& dir() const { return dir_; }
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const std::string& name() const { return name_; }
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const Label& toolchain() const { return toolchain_; }
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void set_toolchain(const Label& tc) { toolchain_ = tc; }
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private:
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// If nonempty, specifies the toolchain to use. If empty, this will match
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// all toolchains. This is independent of the match type.
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Label toolchain_;
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Type type_;
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// Used when type_ == PRIVATE and PRIVATE_RECURSIVE. This specifies the
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// directory that to which the pattern is private to.
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SourceDir dir_;
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// Empty name means match everything. Otherwise the name must match
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// exactly.
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std::string name_;
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};
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#endif // TOOLS_GN_LABEL_PATTERN_H_
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