Revert 214254 "Add initial prototype for the GN meta-buildsystem."

trunk/src/tools/gn/function_process_file_template.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/file_template.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/parse_tree.h"
-
-/*
-process_file_template: Do template expansion over a list of files.
-
-  process_file_template(source_list, template)
-
-  process_file_template applies a template list to a source file list,
-  returning the result of applying each template to each source. This is
-  typically used for computing output file names from input files.
-
-Arguments:
-
-  The source_list is a list of file names.
-
-  The template can be a string or a list. If it is a list, multiple output
-  strings are generated for each input.
-
-  The following template substrings are used in the template arguments
-  and are replaced with the corresponding part of the input file name:
-
-    "{{source}}": The entire source name.
-
-    "{{source_name_part}}": The source name with no path or extension.
-
-Example:
-
-  sources = [
-    "foo.idl",
-    "bar.idl",
-  ]
-  myoutputs = process_file_template(
-      sources,
-      [ "$target_gen_dir/{{source_name_part}}.cc",
-        "$target_gen_dir/{{source_name_part}}.h" ])
-
- The result in this case will be:
-    [ "/out/Debug/foo.cc"
-      "/out/Debug/foo.h"
-      "/out/Debug/bar.cc"
-      "/out/Debug/bar.h" ]
-*/
-Value ExecuteProcessFileTemplate(Scope* scope,
-                                 const FunctionCallNode* function,
-                                 const std::vector<Value>& args,
-                                 Err* err) {
-  if (args.size() != 2) {
-    *err = Err(function->function(), "Expected two arguments");
-    return Value();
-  }
-
-  FileTemplate file_template(args[1], err);
-  if (err->has_error())
-    return Value();
-
-  Value ret(function, Value::LIST);
-  file_template.Apply(args[0], function, &ret.list_value(), err);
-  return ret;
-}