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 NULL;
  45 }
  46
  47 const Value* ScopePerFileProvider::GetCurrentToolchain() {
  48   if (!current_toolchain_) {
  49     current_toolchain_.reset(new Value(NULL,
  50         scope_->settings()->toolchain_label().GetUserVisibleName(false)));
  51   }
  52   return current_toolchain_.get();
  53 }
  54
  55 const Value* ScopePerFileProvider::GetDefaultToolchain() {
  56   if (!default_toolchain_) {
  57     default_toolchain_.reset(new Value(NULL,
  58         scope_->settings()->default_toolchain_label().GetUserVisibleName(
  59             false)));
  60   }
  61   return default_toolchain_.get();
  62 }
  63
  64 const Value* ScopePerFileProvider::GetPythonPath() {
  65   if (!python_path_) {
  66     python_path_.reset(new Value(NULL,
  67         FilePathToUTF8(scope_->settings()->build_settings()->python_path())));
  68   }
  69   return python_path_.get();
  70 }
  71
  72 const Value* ScopePerFileProvider::GetRootBuildDir() {
  73   if (!root_build_dir_) {
  74     root_build_dir_.reset(new Value(NULL, DirectoryWithNoLastSlash(
  75         scope_->settings()->build_settings()->build_dir())));
  76   }
  77   return root_build_dir_.get();
  78 }
  79
  80 const Value* ScopePerFileProvider::GetRootGenDir() {
  81   if (!root_gen_dir_) {
  82     root_gen_dir_.reset(new Value(NULL,
  83         DirectoryWithNoLastSlash(GetToolchainGenDir(scope_->settings()))));
  84   }
  85   return root_gen_dir_.get();
  86 }
  87
  88 const Value* ScopePerFileProvider::GetRootOutDir() {
  89   if (!root_out_dir_) {
  90     root_out_dir_.reset(new Value(NULL,
  91         DirectoryWithNoLastSlash(GetToolchainOutputDir(scope_->settings()))));
  92   }
  93   return root_out_dir_.get();
  94 }
  95
  96 const Value* ScopePerFileProvider::GetTargetGenDir() {
  97   if (!target_gen_dir_) {
  98     target_gen_dir_.reset(new Value(NULL,
  99         DirectoryWithNoLastSlash(GetCurrentGenDir(scope_))));
 100   }
 101   return target_gen_dir_.get();
 102 }
 103
 104 const Value* ScopePerFileProvider::GetTargetOutDir() {
 105   if (!target_out_dir_) {
 106     target_out_dir_.reset(new Value(NULL,
 107         DirectoryWithNoLastSlash(GetCurrentOutputDir(scope_))));
 108   }
 109   return target_out_dir_.get();
 110 }