| # 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/banjo/toolchain.gni") |
| import("//build/compiled_action.gni") |
| import("//build/rust/toolchain.gni") |
| |
| # Generates some Rust bindings for a banjo library. |
| # |
| # The parameters for this template are defined in //build/banjo/banjo.gni. The |
| # relevant parameters in this template are: |
| # - name. |
| |
| template("banjo_rust") { |
| assert(current_toolchain == rust_toolchain, |
| "This template can only be used in $rust_toolchain.") |
| |
| not_needed(invoker, [ "sources" ]) |
| |
| main_target_name = target_name |
| generation_target_name = "${target_name}_rust_generate" |
| |
| library_name = target_name |
| if (defined(invoker.name)) { |
| library_name = invoker.name |
| } |
| |
| underscore_name = "banjo_" + string_replace(library_name, ".", "_") |
| |
| banjo_target_gen_dir = |
| get_label_info(":bogus($banjo_toolchain)", "target_gen_dir") |
| file_stem = "$banjo_target_gen_dir/$underscore_name.rs" |
| file_args = "$banjo_target_gen_dir/rust/$library_name.args" |
| |
| compiled_action(generation_target_name) { |
| forward_variables_from(invoker, [ "testonly" ]) |
| |
| visibility = [ ":*" ] |
| |
| tool = "//src/devices/tools/banjo:banjo_bin" |
| |
| inputs = [ "//src/devices/tools/banjo/zx.banjo" ] |
| inputs += invoker.sources |
| |
| outputs = [ "$file_stem" ] |
| |
| args = [ "@" + rebase_path(file_args, root_build_dir) ] |
| |
| deps = [ ":$main_target_name($banjo_toolchain)" ] |
| } |
| |
| group(main_target_name) { |
| forward_variables_from(invoker, |
| [ |
| "public_deps", |
| "testonly", |
| "visibility", |
| ]) |
| |
| deps = [ ":$generation_target_name" ] |
| |
| if (defined(invoker.deps)) { |
| deps += invoker.deps |
| } |
| } |
| } |