# Copyright 2013 The Flutter Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/compiled_action.gni")

template("flatbuffers") {
  assert(defined(invoker.flatbuffers),
         "Flatbuffer schema files must be specified.")

  flatc_target_name = "flatc_$target_name"
  compiled_action_foreach(flatc_target_name) {
    tool = "//flutter/third_party/flatbuffers:flatc"
    sources = invoker.flatbuffers
    outputs = [ "$target_gen_dir/{{source_name_part}}_flatbuffers.h" ]
    args = [
      "--warnings-as-errors",
      "--cpp",
      "--cpp-std",
      "c++17",
      "--cpp-static-reflection",
      "--gen-object-api",
      "--filename-suffix",
      "_flatbuffers",
      "-o",
      rebase_path(target_gen_dir, root_build_dir),
      "{{source}}",
    ]
  }

  source_set(target_name) {
    forward_variables_from(invoker,
                           "*",
                           [
                             "flatbuffers",
                             "sources",
                             "deps",
                           ])
    sources = get_target_outputs(":$flatc_target_name")
    if (defined(invoker.sources)) {
      sources += invoker.sources
    }
    deps = [
      ":$flatc_target_name",
      "//flutter/third_party/flatbuffers",
    ]
    if (defined(invoker.deps)) {
      deps += invoker.deps
    }
  }
}