Add get_target_outputs function to GN

tools/gn/functions.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/functions.h"
 
 #include <iostream>
 
 #include "base/environment.h"
 #include "base/strings/string_util.h"
@@ skipping 225 matching lines @@
   if (!Visibility::FillItemVisibility(config.get(), scope, err))
     return Value();
 
   // Fill it.
   const SourceDir& input_dir = scope->GetSourceDir();
   ConfigValuesGenerator gen(&config->config_values(), scope, input_dir, err);
   gen.Run();
   if (err->has_error())
     return Value();
 
-  // Mark as complete.
-  scope->settings()->build_settings()->ItemDefined(config.PassAs<Item>());
+  // Save the generated item.
+  Scope::ItemVector* collector = scope->GetItemCollector();
+  if (!collector) {
+    *err = Err(function, "Can't define a config in this context.");
+    return Value();
+  }
+  collector->push_back(new scoped_ptr<Item>(config.PassAs<Item>()));
+
   return Value();
 }
 
 // declare_args ----------------------------------------------------------------
 
 const char kDeclareArgs[] = "declare_args";
 const char kDeclareArgs_HelpShort[] =
     "declare_args: Declare build arguments.";
 const char kDeclareArgs_Help[] =
     "declare_args: Declare build arguments.\n"
@@ skipping 381 matching lines @@
     INSERT_FUNCTION(StaticLibrary, true)
     INSERT_FUNCTION(Test, true)
 
     INSERT_FUNCTION(Assert, false)
     INSERT_FUNCTION(Config, false)
     INSERT_FUNCTION(Copy, false)
     INSERT_FUNCTION(DeclareArgs, false)
     INSERT_FUNCTION(Defined, false)
     INSERT_FUNCTION(ExecScript, false)
     INSERT_FUNCTION(GetEnv, false)
+    INSERT_FUNCTION(GetTargetOutputs, false)
     INSERT_FUNCTION(Import, false)
     INSERT_FUNCTION(Print, false)
     INSERT_FUNCTION(ProcessFileTemplate, false)
     INSERT_FUNCTION(ReadFile, false)
     INSERT_FUNCTION(RebasePath, false)
     INSERT_FUNCTION(SetDefaults, false)
     INSERT_FUNCTION(SetDefaultToolchain, false)
     INSERT_FUNCTION(SetSourcesAssignmentFilter, false)
     INSERT_FUNCTION(Template, false)
     INSERT_FUNCTION(Tool, false)
@@ skipping 67 matching lines @@
     return found_function->second.executed_block_runner(
         function, args.list_value(), &block_scope, err);
   }
 
   // Otherwise it's a no-block function.
   return found_function->second.no_block_runner(scope, function,
                                                 args.list_value(), err);
 }
 
 }  // namespace functions