blob: 9c4ee4f4afd4b3bfa500cecfce85005b12910054 [file] [log] [blame]
# Copyright 2018 The Fuchsia 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")
import("//build/dart/dart_library.gni")
import("//build/dart/toolchain.gni")
import("//build/fidl/toolchain.gni")
import("//build/sdk/sdk_atom_alias.gni")
# Generates some Dart bindings for a FIDL library.
#
# The parameters for this template are defined in //build/fidl/fidl.gni. The
# relevant parameters in this template are:
# - dart_analysis;
# - name;
# - sdk_category.
template("fidl_dart") {
assert(current_toolchain == dart_toolchain,
"This template can only be used in the $dart_toolchain toolchain.")
not_needed(invoker, [ "sources" ])
main_target_name = target_name
generation_target_name = "${target_name}_dart_generate"
library_name = target_name
root_dir = "$target_gen_dir/${library_name}_package"
if (defined(invoker.name)) {
library_name = invoker.name
root_dir = "$target_gen_dir/${target_name}_${library_name}_package"
}
bindings_dir = "$root_dir/lib"
async_bindings_file = "$bindings_dir/fidl_async.dart"
test_bindings_file = "$bindings_dir/fidl_test.dart"
fidl_target_gen_dir =
get_label_info(":bogus($fidl_toolchain)", "target_gen_dir")
json_representation = "$fidl_target_gen_dir/$target_name.fidl.json"
compiled_action(generation_target_name) {
visibility = [
":*",
"//tools/fidl/fidlgen_dart:*",
]
tool = "//tools/fidl/fidlgen_dart"
inputs = [ json_representation ]
outputs = [
async_bindings_file,
test_bindings_file,
]
args = [
"--json",
rebase_path(json_representation, root_build_dir),
"--output-async",
rebase_path(async_bindings_file, root_build_dir),
"--output-test",
rebase_path(test_bindings_file, root_build_dir),
]
# Don't run the formatter if we are using a custom-built Dart SDK in a
# cross-build.
deps = [ ":$main_target_name($fidl_toolchain)" ]
if (host_cpu == target_cpu) {
args += [
"--dart",
rebase_path(prebuilt_dart, root_build_dir),
]
deps += dart_sdk_deps
}
forward_variables_from(invoker, [ "testonly" ])
metadata = {
generated_sources = rebase_path(outputs, root_build_dir)
}
}
copy_pubspec_target_name = "${target_name}_dart_pubspec"
copy(copy_pubspec_target_name) {
sources = [ "//build/dart/empty_pubspec.yaml" ]
outputs = [ "$root_dir/pubspec.yaml" ]
}
dart_library(main_target_name) {
forward_variables_from(invoker,
[
"testonly",
"visibility",
])
# Dart analysis can take tens of second, so skip by default to save build
# time.
disable_analysis = !defined(invoker.dart_analysis) || !invoker.dart_analysis
package_root = root_dir
package_name = "fidl_" + string_replace(library_name, ".", "_")
null_safe = true
sources = [
rebase_path(async_bindings_file, bindings_dir),
rebase_path(test_bindings_file, bindings_dir),
]
deps = [
":$copy_pubspec_target_name",
":$generation_target_name",
"//sdk/dart/fidl",
"//sdk/dart/zircon",
"//third_party/dart-pkg/pub/meta",
]
if (defined(invoker.public_deps)) {
deps += invoker.public_deps
}
# invoker.deps are the non_fidl_deps passed in to the fidl() rule
if (defined(invoker.deps)) {
deps += invoker.deps
}
}
if (defined(invoker.sdk_category) && invoker.sdk_category != "excluded") {
# Instead of depending on the generated bindings, set up a dependency on the
# original library.
sdk_target_name = "${main_target_name}_sdk"
sdk_atom_alias(sdk_target_name) {
atom = ":$sdk_target_name($fidl_toolchain)"
}
}
}