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 // allow_target_vars allows the target-related variables to get resolved. 18 // When allow_target_vars is unset, the target-related values will be 19 // undefined to GN script. 20 ScopePerFileProvider(Scope* scope, bool allow_target_vars); 21 virtual ~ScopePerFileProvider(); 22 23 // ProgrammaticProvider implementation. 24 virtual const Value* GetProgrammaticValue( 25 const base::StringPiece& ident) OVERRIDE; 26 27 private: 28 const Value* GetCurrentToolchain(); 29 const Value* GetDefaultToolchain(); 30 const Value* GetPythonPath(); 31 const Value* GetRootBuildDir(); 32 const Value* GetRootGenDir(); 33 const Value* GetRootOutDir(); 34 const Value* GetTargetGenDir(); 35 const Value* GetTargetOutDir(); 36 37 bool allow_target_vars_; 38 39 // All values are lazily created. 40 scoped_ptr<Value> current_toolchain_; 41 scoped_ptr<Value> default_toolchain_; 42 scoped_ptr<Value> python_path_; 43 scoped_ptr<Value> root_build_dir_; 44 scoped_ptr<Value> root_gen_dir_; 45 scoped_ptr<Value> root_out_dir_; 46 scoped_ptr<Value> target_gen_dir_; 47 scoped_ptr<Value> target_out_dir_; 48 49 DISALLOW_COPY_AND_ASSIGN(ScopePerFileProvider); 50 }; 51 52 #endif // TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_ 53
