GYP generator for GN

tools/gn/args.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/args.h"
 
 #include "tools/gn/variables.h"
 
 const char kBuildArgs_Help[] =
     "Build Arguments Overview\n"
@@ skipping 34 matching lines @@
     "\n"
     "  Often, the root build config file will declare global arguments that\n"
     "  will be passed to all buildfiles. Individual build files can also\n"
     "  specify arguments that apply only to those files. It is also usedful\n"
     "  to specify build args in an \"import\"-ed file if you want such\n"
     "  arguments to apply to multiple buildfiles.\n";
 
 Args::Args() {
 }
 
+Args::Args(const Args& other)
+    : overrides_(other.overrides_),
+      all_overrides_(other.all_overrides_),
+      declared_arguments_(other.declared_arguments_) {
+}
+
 Args::~Args() {
 }
 
+void Args::AddArgOverride(const char* name, const Value& value) {
+  overrides_[base::StringPiece(name)] = value;
+  all_overrides_[base::StringPiece(name)] = value;
+}
+
 void Args::AddArgOverrides(const Scope::KeyValueMap& overrides) {
   for (Scope::KeyValueMap::const_iterator i = overrides.begin();
        i != overrides.end(); ++i) {
-    overrides_.insert(*i);
-    all_overrides_.insert(*i);
+    overrides_[i->first] = i->second;
+    all_overrides_[i->first] = i->second;
   }
 }
 
 void Args::SetupRootScope(Scope* dest,
                           const Scope::KeyValueMap& toolchain_overrides) const {
   SetSystemVars(dest);
   ApplyOverrides(overrides_, dest);
   ApplyOverrides(toolchain_overrides, dest);
   SaveOverrideRecord(toolchain_overrides);
 }
@@ skipping 106 matching lines @@
        i != values.end(); ++i)
     scope->SetValue(i->first, i->second, i->second.origin());
 }
 
 void Args::SaveOverrideRecord(const Scope::KeyValueMap& values) const {
   base::AutoLock lock(lock_);
   for (Scope::KeyValueMap::const_iterator i = values.begin();
        i != values.end(); ++i)
     all_overrides_[i->first] = i->second;
 }