tools/gn/scope_per_file_provider.cc

   1 // Copyright (c) 2013 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 #include "tools/gn/scope_per_file_provider.h"
   6
   7 #include "tools/gn/filesystem_utils.h"
   8 #include "tools/gn/settings.h"
   9 #include "tools/gn/source_file.h"
  10 #include "tools/gn/value.h"
  11 #include "tools/gn/variables.h"
  12
  13 ScopePerFileProvider::ScopePerFileProvider(Scope* scope,
  14                                            bool allow_target_vars)
  15     : ProgrammaticProvider(scope),
  16       allow_target_vars_(allow_target_vars) {
  17 }
  18
  19 ScopePerFileProvider::~ScopePerFileProvider() {
  20 }
  21
  22 const Value* ScopePerFileProvider::GetProgrammaticValue(
  23     const base::StringPiece& ident) {
  24   if (ident == variables::kCurrentToolchain)
  25     return GetCurrentToolchain();
  26   if (ident == variables::kDefaultToolchain)
  27     return GetDefaultToolchain();
  28   if (ident == variables::kPythonPath)
  29     return GetPythonPath();
  30
  31   if (ident == variables::kRootBuildDir)
  32     return GetRootBuildDir();
  33   if (ident == variables::kRootGenDir)
  34     return GetRootGenDir();
  35   if (ident == variables::kRootOutDir)
  36     return GetRootOutDir();
  37
  38   if (allow_target_vars_) {
  39     if (ident == variables::kTargetGenDir)
  40       return GetTargetGenDir();
  41     if (ident == variables::kTargetOutDir)
  42       return GetTargetOutDir();
  43   }
  44   return nullptr;
  45 }
  46
  47 const Value* ScopePerFileProvider::GetCurrentToolchain() {
  48   if (!current_toolchain_) {
  49     current_toolchain_.reset(new Value(
  50         nullptr,
  51         scope_->settings()->toolchain_label().GetUserVisibleName(false)));
  52   }
  53   return current_toolchain_.get();
  54 }
  55
  56 const Value* ScopePerFileProvider::GetDefaultToolchain() {
  57   if (!default_toolchain_) {
  58     default_toolchain_.reset(new Value(
  59         nullptr,
  60         scope_->settings()->default_toolchain_label().GetUserVisibleName(
  61             false)));
  62   }
  63   return default_toolchain_.get();
  64 }
  65
  66 const Value* ScopePerFileProvider::GetPythonPath() {
  67   if (!python_path_) {
  68     python_path_.reset(new Value(
  69         nullptr,
  70         FilePathToUTF8(scope_->settings()->build_settings()->python_path())));
  71   }
  72   return python_path_.get();
  73 }
  74
  75 const Value* ScopePerFileProvider::GetRootBuildDir() {
  76   if (!root_build_dir_) {
  77     root_build_dir_.reset(new Value(
  78         nullptr, DirectoryWithNoLastSlash(
  79                      scope_->settings()->build_settings()->build_dir())));
  80   }
  81   return root_build_dir_.get();
  82 }
  83
  84 const Value* ScopePerFileProvider::GetRootGenDir() {
  85   if (!root_gen_dir_) {
  86     root_gen_dir_.reset(new Value(
  87         nullptr,
  88         DirectoryWithNoLastSlash(GetToolchainGenDir(scope_->settings()))));
  89   }
  90   return root_gen_dir_.get();
  91 }
  92
  93 const Value* ScopePerFileProvider::GetRootOutDir() {
  94   if (!root_out_dir_) {
  95     root_out_dir_.reset(new Value(
  96         nullptr,
  97         DirectoryWithNoLastSlash(GetToolchainOutputDir(scope_->settings()))));
  98   }
  99   return root_out_dir_.get();
 100 }
 101
 102 const Value* ScopePerFileProvider::GetTargetGenDir() {
 103   if (!target_gen_dir_) {
 104     target_gen_dir_.reset(
 105         new Value(nullptr, DirectoryWithNoLastSlash(GetCurrentGenDir(scope_))));
 106   }
 107   return target_gen_dir_.get();
 108 }
 109
 110 const Value* ScopePerFileProvider::GetTargetOutDir() {
 111   if (!target_out_dir_) {
 112     target_out_dir_.reset(new Value(
 113         nullptr, DirectoryWithNoLastSlash(GetCurrentOutputDir(scope_))));
 114   }
 115   return target_out_dir_.get();
 116 }