Revert 214254 "Add initial prototype for the GN meta-buildsystem."

trunk/src/tools/gn/scope_per_file_provider.cc

-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/scope_per_file_provider.h"
-
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/source_file.h"
-#include "tools/gn/toolchain_manager.h"
-#include "tools/gn/value.h"
-
-const char* ScopePerFileProvider::kDefaultToolchain =
-    "default_toolchain";
-const char* ScopePerFileProvider::kPythonPath =
-    "python_path";
-const char* ScopePerFileProvider::kToolchain =
-    "toolchain";
-const char* ScopePerFileProvider::kRootOutputDirName =
-    "root_output_dir";
-const char* ScopePerFileProvider::kRootGenDirName =
-    "root_gen_dir";
-const char* ScopePerFileProvider::kTargetOutputDirName =
-    "target_output_dir";
-const char* ScopePerFileProvider::kTargetGenDirName =
-    "target_gen_dir";
-const char* ScopePerFileProvider::kRelativeRootOutputDirName =
-    "relative_root_output_dir";
-const char* ScopePerFileProvider::kRelativeRootGenDirName =
-    "relative_root_gen_dir";
-const char* ScopePerFileProvider::kRelativeTargetOutputDirName =
-    "relative_target_output_dir";
-const char* ScopePerFileProvider::kRelativeTargetGenDirName =
-    "relative_target_gen_dir";
-
-ScopePerFileProvider::ScopePerFileProvider(Scope* scope,
-                                           const SourceFile& source_file)
-    : ProgrammaticProvider(scope),
-      source_file_(source_file) {
-}
-
-ScopePerFileProvider::~ScopePerFileProvider() {
-}
-
-const Value* ScopePerFileProvider::GetProgrammaticValue(
-    const base::StringPiece& ident) {
-  if (ident == kDefaultToolchain)
-    return GetDefaultToolchain();
-  if (ident == kPythonPath)
-    return GetPythonPath();
-
-  if (ident == kTargetOutputDirName)
-    return GetTargetOutputDir();
-  if (ident == kTargetGenDirName)
-    return GetTargetGenDir();
-
-  if (ident == kRelativeRootOutputDirName)
-    return GetRelativeRootOutputDir();
-  if (ident == kRelativeRootGenDirName)
-    return GetRelativeRootGenDir();
-  if (ident == kRelativeTargetOutputDirName)
-    return GetRelativeTargetOutputDir();
-  if (ident == kRelativeTargetGenDirName)
-    return GetRelativeTargetGenDir();
-  return NULL;
-}
-
-// static
-Value ScopePerFileProvider::GetRootOutputDir(const Settings* settings) {
-  return Value(NULL, GetRootOutputDirWithNoLastSlash(settings));
-}
-
-// static
-Value ScopePerFileProvider::GetRootGenDir(const Settings* settings) {
-  return Value(NULL, GetRootGenDirWithNoLastSlash(settings));
-}
-
-const Value* ScopePerFileProvider::GetDefaultToolchain() {
-  if (!default_toolchain_) {
-    const ToolchainManager& toolchain_manager =
-        scope_->settings()->build_settings()->toolchain_manager();
-    default_toolchain_.reset(new Value(NULL,
-        toolchain_manager.GetDefaultToolchainUnlocked().GetUserVisibleName(
-            false)));
-  }
-  return default_toolchain_.get();
-}
-
-const Value* ScopePerFileProvider::GetPythonPath() {
-  if (!python_path_) {
-    python_path_.reset(new Value(NULL,
-        FilePathToUTF8(scope_->settings()->build_settings()->python_path())));
-  }
-  return python_path_.get();
-}
-
-const Value* ScopePerFileProvider::GetToolchain() {
-  if (!toolchain_) {
-    toolchain_.reset(new Value(NULL,
-        scope_->settings()->toolchain()->label().GetUserVisibleName(false)));
-  }
-  return toolchain_.get();
-}
-
-const Value* ScopePerFileProvider::GetTargetOutputDir() {
-  if (!target_output_dir_) {
-    target_output_dir_.reset(new Value(NULL,
-        GetRootOutputDirWithNoLastSlash(scope_->settings()) +
-        GetFileDirWithNoLastSlash()));
-  }
-  return target_output_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetTargetGenDir() {
-  if (!target_output_dir_) {
-    target_gen_dir_.reset(new Value(NULL,
-        GetRootGenDirWithNoLastSlash(scope_->settings()) +
-        GetFileDirWithNoLastSlash()));
-  }
-  return target_gen_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeRootOutputDir() {
-  if (!relative_root_output_dir_) {
-    relative_root_output_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootOutputDirWithNoLastSlash(scope_->settings())));
-  }
-  return relative_root_output_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeRootGenDir() {
-  if (!relative_root_gen_dir_) {
-    relative_root_gen_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootGenDirWithNoLastSlash(scope_->settings())));
-  }
-  return relative_root_gen_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeTargetOutputDir() {
-  if (!relative_target_output_dir_) {
-    relative_target_output_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootOutputDirWithNoLastSlash(scope_->settings()) + "obj/" +
-        GetFileDirWithNoLastSlash()));
-  }
-  return relative_target_output_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeTargetGenDir() {
-  if (!relative_target_gen_dir_) {
-    relative_target_gen_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootGenDirWithNoLastSlash(scope_->settings()) +
-        GetFileDirWithNoLastSlash()));
-  }
-  return relative_target_gen_dir_.get();
-}
-
-// static
-std::string ScopePerFileProvider::GetRootOutputDirWithNoLastSlash(
-    const Settings* settings) {
-  const std::string& output_dir =
-      settings->build_settings()->build_dir().value();
-  CHECK(!output_dir.empty());
-  return output_dir.substr(0, output_dir.size() - 1);
-}
-
-// static
-std::string ScopePerFileProvider::GetRootGenDirWithNoLastSlash(
-    const Settings* settings) {
-  return GetRootOutputDirWithNoLastSlash(settings) + "/gen";
-}
-
-std::string ScopePerFileProvider::GetFileDirWithNoLastSlash() const {
-  std::string dir_value = source_file_.GetDir().value();
-  return dir_value.substr(0, dir_value.size() - 1);
-}
-
-std::string ScopePerFileProvider::GetRelativeRootWithNoLastSlash() const {
-  std::string inverted = InvertDir(source_file_.GetDir());
-  if (inverted.empty())
-    return ".";
-  return inverted.substr(0, inverted.size() - 1);
-}