common-mk/lex.gni

# Copyright 2018 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

template("lex") {
  forward_variables_from(invoker, [ "lexer_out_dir" ])
  cc_dir = "${root_gen_dir}/lex/${lexer_out_dir}"

  action_name = "${target_name}_action"
  outputs_template = [ "${cc_dir}/{{source_name_part}}.c" ]

  action_foreach(action_name) {
    outputs = outputs_template
    script = "//common-mk/file_generator_wrapper.py"
    sources = invoker.sources
    args = [
             "flex",
             "-o",
           ] + outputs + [ "{{source}}" ]
  }

  source_set(target_name) {
    forward_variables_from(invoker, [ "defines" ])

    sources = process_file_template(invoker.sources, outputs_template)
    deps = [
      ":$action_name",
    ]
  }
}