tools/gn/tool.h

   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_TOOL_H_
   6 #define TOOLS_GN_TOOL_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/logging.h"
  12 #include "tools/gn/substitution_list.h"
  13 #include "tools/gn/substitution_pattern.h"
  14
  15 class Tool {
  16  public:
  17   enum DepsFormat {
  18     DEPS_GCC = 0,
  19     DEPS_MSVC = 1
  20   };
  21
  22   enum PrecompiledHeaderType {
  23     PCH_NONE = 0,
  24     PCH_MSVC = 1
  25   };
  26
  27   Tool();
  28   ~Tool();
  29
  30   // Getters/setters ----------------------------------------------------------
  31   //
  32   // After the tool has had its attributes set, the caller must call
  33   // SetComplete(), at which point no other changes can be made.
  34
  35   // Command to run.
  36   const SubstitutionPattern& command() const {
  37     return command_;
  38   }
  39   void set_command(const SubstitutionPattern& cmd) {
  40     DCHECK(!complete_);
  41     command_ = cmd;
  42   }
  43
  44   // Should include a leading "." if nonempty.
  45   const std::string& default_output_extension() const {
  46     return default_output_extension_;
  47   }
  48   void set_default_output_extension(const std::string& ext) {
  49     DCHECK(!complete_);
  50     DCHECK(ext.empty() || ext[0] == '.');
  51     default_output_extension_ = ext;
  52   }
  53
  54   // Dependency file (if supported).
  55   const SubstitutionPattern& depfile() const {
  56     return depfile_;
  57   }
  58   void set_depfile(const SubstitutionPattern& df) {
  59     DCHECK(!complete_);
  60     depfile_ = df;
  61   }
  62
  63   DepsFormat depsformat() const {
  64     return depsformat_;
  65   }
  66   void set_depsformat(DepsFormat f) {
  67     DCHECK(!complete_);
  68     depsformat_ = f;
  69   }
  70
  71   PrecompiledHeaderType precompiled_header_type() const {
  72     return precompiled_header_type_;
  73   }
  74   void set_precompiled_header_type(PrecompiledHeaderType pch_type) {
  75     precompiled_header_type_ = pch_type;
  76   }
  77
  78   const SubstitutionPattern& description() const {
  79     return description_;
  80   }
  81   void set_description(const SubstitutionPattern& desc) {
  82     DCHECK(!complete_);
  83     description_ = desc;
  84   }
  85
  86   const std::string& lib_switch() const {
  87     return lib_switch_;
  88   }
  89   void set_lib_switch(const std::string& s) {
  90     DCHECK(!complete_);
  91     lib_switch_ = s;
  92   }
  93
  94   const std::string& lib_dir_switch() const {
  95     return lib_dir_switch_;
  96   }
  97   void set_lib_dir_switch(const std::string& s) {
  98     DCHECK(!complete_);
  99     lib_dir_switch_ = s;
 100   }
 101
 102   const SubstitutionList& outputs() const {
 103     return outputs_;
 104   }
 105   void set_outputs(const SubstitutionList& out) {
 106     DCHECK(!complete_);
 107     outputs_ = out;
 108   }
 109
 110   // Should match files in the outputs() if nonempty.
 111   const SubstitutionPattern& link_output() const {
 112     return link_output_;
 113   }
 114   void set_link_output(const SubstitutionPattern& link_out) {
 115     DCHECK(!complete_);
 116     link_output_ = link_out;
 117   }
 118
 119   const SubstitutionPattern& depend_output() const {
 120     return depend_output_;
 121   }
 122   void set_depend_output(const SubstitutionPattern& dep_out) {
 123     DCHECK(!complete_);
 124     depend_output_ = dep_out;
 125   }
 126
 127   const std::string& output_prefix() const {
 128     return output_prefix_;
 129   }
 130   void set_output_prefix(const std::string& s) {
 131     DCHECK(!complete_);
 132     output_prefix_ = s;
 133   }
 134
 135   bool restat() const {
 136     return restat_;
 137   }
 138   void set_restat(bool r) {
 139     DCHECK(!complete_);
 140     restat_ = r;
 141   }
 142
 143   const SubstitutionPattern& rspfile() const {
 144     return rspfile_;
 145   }
 146   void set_rspfile(const SubstitutionPattern& rsp) {
 147     DCHECK(!complete_);
 148     rspfile_ = rsp;
 149   }
 150
 151   const SubstitutionPattern& rspfile_content() const {
 152     return rspfile_content_;
 153   }
 154   void set_rspfile_content(const SubstitutionPattern& content) {
 155     DCHECK(!complete_);
 156     rspfile_content_ = content;
 157   }
 158
 159   // Other functions ----------------------------------------------------------
 160
 161   // Called when the toolchain is saving this tool, after everything is filled
 162   // in.
 163   void SetComplete();
 164
 165   // Returns true if this tool has separate outputs for dependency tracking
 166   // and linking.
 167   bool has_separate_solink_files() const {
 168     return !link_output_.empty() || !depend_output_.empty();
 169   }
 170
 171   // Substitutions required by this tool.
 172   const SubstitutionBits& substitution_bits() const {
 173     DCHECK(complete_);
 174     return substitution_bits_;
 175   }
 176
 177  private:
 178   SubstitutionPattern command_;
 179   std::string default_output_extension_;
 180   SubstitutionPattern depfile_;
 181   DepsFormat depsformat_;
 182   PrecompiledHeaderType precompiled_header_type_;
 183   SubstitutionPattern description_;
 184   std::string lib_switch_;
 185   std::string lib_dir_switch_;
 186   SubstitutionList outputs_;
 187   SubstitutionPattern link_output_;
 188   SubstitutionPattern depend_output_;
 189   std::string output_prefix_;
 190   bool restat_;
 191   SubstitutionPattern rspfile_;
 192   SubstitutionPattern rspfile_content_;
 193
 194   bool complete_;
 195
 196   SubstitutionBits substitution_bits_;
 197
 198   DISALLOW_COPY_AND_ASSIGN(Tool);
 199 };
 200
 201 #endif  // TOOLS_GN_TOOL_H_