GYP generator for GN

tools/gn/args.h

 // 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.
 
 #ifndef TOOLS_GN_ARGS_H_
 #define TOOLS_GN_ARGS_H_
 
 #include "base/basictypes.h"
 #include "base/containers/hash_tables.h"
 #include "base/synchronization/lock.h"
 #include "tools/gn/err.h"
 #include "tools/gn/scope.h"
 
 extern const char kBuildArgs_Help[];
 
 // Manages build arguments. It stores the global arguments specified on the
 // command line, and sets up the root scope with the proper values.
 //
 // This class tracks accesses so we can report errors about unused variables.
 // The use case is if the user specifies an override on the command line, but
 // no buildfile actually uses that variable. We want to be able to report that
 // the argument was unused.
 class Args {
  public:
   Args();
+  Args(const Args& other);
   ~Args();
 
   // Specifies overrides of the build arguments. These are normally specified
   // on the command line.
+  void AddArgOverride(const char* name, const Value& value);
   void AddArgOverrides(const Scope::KeyValueMap& overrides);
 
   // Sets up the root scope for a toolchain. This applies the default system
   // flags, then any overrides stored in this object, then applies any
   // toolchain overrides specified in the argument.
   void SetupRootScope(Scope* dest,
                       const Scope::KeyValueMap& toolchain_overrides) const;
 
   // Sets up the given scope with arguments passed in.
   //
@@ skipping 35 matching lines @@
 
   // Maintains a list of all overrides we've ever seen. This is the main
   // |overrides_| as well as toolchain overrides. Tracking this allows us to
   // check for overrides that were specified but never used.
   mutable Scope::KeyValueMap all_overrides_;
 
   // Tracks all variables declared in any buildfile. This is so we can see if
   // the user set variables on the command line that are not used anywhere.
   mutable Scope::KeyValueMap declared_arguments_;
 
-  DISALLOW_COPY_AND_ASSIGN(Args);
+  Args& operator=(const Args& other);  // Disallow assignment.
 };
 
 #endif  // TOOLS_GN_ARGS_H_