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# Copyright 2023 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
import("//build_overrides/pigweed.gni")
import("$dir_pw_build/gn_internal/build_target.gni")
# Note: In general, prefer to import target_types.gni rather than this file.
#
# This template wraps a configurable target type specified by the current
# toolchain to be used for all pw_rust_library targets. A wrapper for GN's
# built-in rust_library target, it is analogous to pw_static_library with
# additions to support rust specific parameters such as rust edition and cargo
# config features.
#
# For more information on the features provided by this template, see the full
# docs at https://pigweed.dev/pw_build/?highlight=pw_rust_library
template("pw_rust_library") {
pw_internal_build_target(target_name) {
forward_variables_from(invoker, "*")
crate_name = target_name
if (defined(name)) {
crate_name = name
}
_edition = "2021"
if (defined(edition)) {
_edition = edition
}
assert(_edition == "2015" || _edition == "2018" || _edition == "2021",
"edition ${_edition} is not supported")
if (!defined(configs)) {
configs = []
}
configs += [ "$dir_pw_build:rust_edition_${_edition}" ]
if (!defined(rustflags)) {
rustflags = []
}
if (defined(features)) {
foreach(i, features) {
rustflags += [ "--cfg=feature=\"${i}\"" ]
}
}
underlying_target_type = "rust_library"
crate_name = string_replace(crate_name, "-", "_")
output_name = crate_name
output_dir = "${target_out_dir}/lib"
add_global_link_deps = true
}
}
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