1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef TOOLS_GN_LABEL_PATTERN_H_ 6 #define TOOLS_GN_LABEL_PATTERN_H_ 7 8 #include "base/strings/string_piece.h" 9 #include "tools/gn/label.h" 10 #include "tools/gn/source_dir.h" 11 12 class Err; 13 class Value; 14 15 extern const char kLabelPattern_Help[]; 16 17 // A label pattern is a simple pattern that matches labels. It is used for 18 // specifying visibility and other times when multiple targets need to be 19 // referenced. 20 class LabelPattern { 21 public: 22 enum Type { 23 MATCH = 1, // Exact match for a given target. 24 DIRECTORY, // Only targets in the file in the given directory. 25 RECURSIVE_DIRECTORY // The given directory and any subdir. 26 // (also indicates "public" when dir is empty). 27 }; 28 29 LabelPattern(); 30 LabelPattern(Type type, 31 const SourceDir& dir, 32 const base::StringPiece& name, 33 const Label& toolchain_label); 34 ~LabelPattern(); 35 36 // Converts the given input string to a pattern. This does special stuff 37 // to treat the pattern as a label. Sets the error on failure. 38 static LabelPattern GetPattern(const SourceDir& current_dir, 39 const Value& value, 40 Err* err); 41 42 // Returns true if this pattern matches the given label. 43 bool Matches(const Label& label) const; 44 45 // Returns a string representation of this pattern. 46 std::string Describe() const; 47 type()48 Type type() const { return type_; } 49 dir()50 const SourceDir& dir() const { return dir_; } name()51 const std::string& name() const { return name_; } 52 toolchain()53 const Label& toolchain() const { return toolchain_; } set_toolchain(const Label & tc)54 void set_toolchain(const Label& tc) { toolchain_ = tc; } 55 56 private: 57 // If nonempty, specifies the toolchain to use. If empty, this will match 58 // all toolchains. This is independent of the match type. 59 Label toolchain_; 60 61 Type type_; 62 63 // Used when type_ == PRIVATE and PRIVATE_RECURSIVE. This specifies the 64 // directory that to which the pattern is private to. 65 SourceDir dir_; 66 67 // Empty name means match everything. Otherwise the name must match 68 // exactly. 69 std::string name_; 70 }; 71 72 #endif // TOOLS_GN_LABEL_PATTERN_H_ 73