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# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
assert(is_win)
import("//build/config/win/visual_studio_version.gni")
# This template defines a rule to invoke the MS IDL compiler.
#
# Parameters
#
# sources
# List of .idl file to process.
#
# out_dir (optional)
# Directory to write the generated files to. Defaults to target_gen_dir.
#
# visibility (optional)
template("midl") {
action_name = "${target_name}_idl_action"
source_set_name = target_name
assert(defined(invoker.sources), "Source must be defined for $target_name")
if (defined(invoker.out_dir)) {
out_dir = invoker.out_dir
} else {
out_dir = target_gen_dir
}
header_file = "{{source_name_part}}.h"
dlldata_file = "{{source_name_part}}.dlldata.c"
interface_identifier_file = "{{source_name_part}}_i.c"
proxy_file = "{{source_name_part}}_p.c"
type_library_file = "{{source_name_part}}.tlb"
action_foreach(action_name) {
visibility = [ ":$source_set_name" ]
# This functionality is handled by the win-tool because the GYP build has
# MIDL support built-in.
# TODO(brettw) move this to a separate MIDL wrapper script for better
# clarity once GYP support is not needed.
script = "$root_build_dir/gyp-win-tool"
sources = invoker.sources
# Note that .tlb is not included in the outputs as it is not always
# generated depending on the content of the input idl file.
outputs = [
"$out_dir/$header_file",
"$out_dir/$dlldata_file",
"$out_dir/$interface_identifier_file",
"$out_dir/$proxy_file",
]
if (cpu_arch == "x86") {
win_tool_arch = "environment.x86"
idl_target_platform = "win32"
} else if (cpu_arch == "x64") {
win_tool_arch = "environment.x64"
idl_target_platform = "x64"
} else {
assert(false, "Need environment for this arch")
}
args = [
"midl-wrapper",
win_tool_arch,
rebase_path(out_dir, root_build_dir),
type_library_file,
header_file,
dlldata_file,
interface_identifier_file,
proxy_file,
"{{source}}",
"/char",
"signed",
"/env",
idl_target_platform,
"/Oicf",
]
}
source_set(target_name) {
if (defined(invoker.visibility)) {
visibility = invoker.visibility
}
# We only compile the IID files from the IDL tool rather than all outputs.
sources = process_file_template(invoker.sources,
[ "$out_dir/$interface_identifier_file" ])
deps = [
":$action_name",
]
}
}
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