tools/gn/scope_per_file_provider.h

   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 #ifndef TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_
   6 #define TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "tools/gn/scope.h"
  11 #include "tools/gn/source_file.h"
  12
  13 // ProgrammaticProvider for a scope to provide it with per-file built-in
  14 // variable support.
  15 class ScopePerFileProvider : public Scope::ProgrammaticProvider {
  16  public:
  17   ScopePerFileProvider(Scope* scope);
  18   virtual ~ScopePerFileProvider();
  19
  20   // ProgrammaticProvider implementation.
  21   virtual const Value* GetProgrammaticValue(
  22       const base::StringPiece& ident) OVERRIDE;
  23
  24  private:
  25   const Value* GetCurrentToolchain();
  26   const Value* GetDefaultToolchain();
  27   const Value* GetPythonPath();
  28   const Value* GetRootBuildDir();
  29   const Value* GetRootGenDir();
  30   const Value* GetRootOutDir();
  31   const Value* GetTargetGenDir();
  32   const Value* GetTargetOutDir();
  33
  34   // All values are lazily created.
  35   scoped_ptr<Value> current_toolchain_;
  36   scoped_ptr<Value> default_toolchain_;
  37   scoped_ptr<Value> python_path_;
  38   scoped_ptr<Value> root_build_dir_;
  39   scoped_ptr<Value> root_gen_dir_;
  40   scoped_ptr<Value> root_out_dir_;
  41   scoped_ptr<Value> target_gen_dir_;
  42   scoped_ptr<Value> target_out_dir_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(ScopePerFileProvider);
  45 };
  46
  47 #endif  // TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_