255 строки
8.9 KiB
Plaintext
255 строки
8.9 KiB
Plaintext
# Copyright 2014 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Defines a static library corresponding to the output of schema compiler tools
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# over a set of extensions API schemas (IDL or JSON format.) The library target
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# has implicit hard dependencies on all schema files listed by the invoker and
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# is itself a hard dependency.
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#
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# Invocations of this template may use the following variables:
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#
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# sources [required] A list of schema files to be compiled.
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#
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# root_namespace [required]
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# A Python string substituion pattern used to generate the C++
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# namespace for each API. Use %(namespace)s to replace with the API
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# namespace, like "toplevel::%(namespace)s_api".
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#
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# schema_include_rules [optional]
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# A list of paths to include when searching for referenced objects,
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# with the namespace separated by a :.
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# Example:
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# [ '/foo/bar:Foo::Bar::%(namespace)s' ]
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#
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# schemas [optional, default = false]
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# Boolean indicating if the schema files should be generated.
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#
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# bundle [optional, default = false]
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# Boolean indicating if the schema bundle files should be generated.
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#
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# bundle_registration [optional, default = false]
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# Boolean indicating if the API registration bundle files should be generated.
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#
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# bundle_name [required if bundle or bundle_registrations]:
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# A string to prepend to generated bundle class names, so that multiple
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# bundle rules can be used without conflicting. Only used with one of
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# the cpp-bundle generators.
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#
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# impl_dir [required if bundle_registration = true, otherwise unused]
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# The path containing C++ implementations of API functions. This path is
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# used as the root path when looking for {schema}/{schema}_api.h headers
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# when generating API registration bundles. Such headers, if found, are
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# automatically included by the generated code.
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#
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# uncompiled_sources [optional, only used when bundle = true or
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# bundle_registration = true]
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# A list of schema files which should not be compiled, but which should still
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# be processed for API bundle generation.
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#
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# uncompiled_bundle_schema_sources [optional, only used when bundle = true]
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# A list of schema files which should not be compiled nor registered, but
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# should still be processed for the schema generation.
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#
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# configs [optional]
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# Extra configs to apply to the compile step.
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#
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# deps [optional]
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# If any deps are specified they will be inherited by the static library
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# target.
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#
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# generate_static_library [optional, defaults to false]
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# Produces a static library instead of a source_set.
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#
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# The generated library target also inherits the visibility and output_name
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# of its invoker.
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template("json_schema_api") {
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assert(defined(invoker.sources),
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"\"sources\" must be defined for the $target_name template.")
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assert(defined(invoker.root_namespace),
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"\"root_namespace\" must be defined for the $target_name template.")
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schemas = defined(invoker.schemas) && invoker.schemas
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bundle = defined(invoker.bundle) && invoker.bundle
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bundle_registration =
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defined(invoker.bundle_registration) && invoker.bundle_registration
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schema_include_rules = ""
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if (defined(invoker.schema_include_rules)) {
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schema_include_rules = invoker.schema_include_rules
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}
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# Keep a copy of the target_name here since it will be trampled
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# in nested targets.
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target_visibility = [ ":$target_name" ]
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generated_config_name = target_name + "_generated_config"
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config(generated_config_name) {
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include_dirs = [ root_gen_dir ]
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visibility = target_visibility
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}
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root_namespace = invoker.root_namespace
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compiler_root = "//tools/json_schema_compiler"
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compiler_script = "$compiler_root/compiler.py"
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compiler_sources = [
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"$compiler_root/cc_generator.py",
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"$compiler_root/code.py",
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"$compiler_root/compiler.py",
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"$compiler_root/cpp_bundle_generator.py",
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"$compiler_root/cpp_generator.py",
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"$compiler_root/cpp_type_generator.py",
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"$compiler_root/cpp_util.py",
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"$compiler_root/h_generator.py",
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"$compiler_root/idl_schema.py",
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"$compiler_root/model.py",
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"$compiler_root/util_cc_helper.py",
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]
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if (schemas) {
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schema_generator_name = target_name + "_schema_generator"
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action_foreach(schema_generator_name) {
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script = compiler_script
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sources = invoker.sources
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inputs = compiler_sources
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outputs = [
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"$target_gen_dir/{{source_name_part}}.cc",
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"$target_gen_dir/{{source_name_part}}.h",
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]
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args = [
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"{{source}}",
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"--root=" + rebase_path("//", root_build_dir),
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"--destdir=" + rebase_path(root_gen_dir, root_build_dir),
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"--namespace=$root_namespace",
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"--generator=cpp",
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"--include-rules=$schema_include_rules",
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]
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if (defined(invoker.visibility)) {
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# If visibility is restricted, add our own target to it.
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visibility = invoker.visibility + target_visibility
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}
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}
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}
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if (bundle) {
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assert(defined(invoker.bundle_name),
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"\"bundle_name\" must be defined for bundles")
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uncompiled_sources = []
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if (defined(invoker.uncompiled_sources)) {
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uncompiled_sources = invoker.uncompiled_sources
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}
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uncompiled_bundle_schema_sources = []
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if (defined(invoker.uncompiled_bundle_schema_sources)) {
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uncompiled_bundle_schema_sources =
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invoker.uncompiled_bundle_schema_sources
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}
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bundle_generator_schema_name = target_name + "_bundle_generator_schema"
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action(bundle_generator_schema_name) {
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script = compiler_script
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inputs = compiler_sources + invoker.sources + uncompiled_sources
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outputs = [
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"$target_gen_dir/generated_schemas.cc",
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"$target_gen_dir/generated_schemas.h",
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]
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args = [
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"--root=" + rebase_path("//", root_build_dir),
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"--destdir=" + rebase_path(root_gen_dir, root_build_dir),
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"--namespace=$root_namespace",
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"--bundle-name=" + invoker.bundle_name,
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"--generator=cpp-bundle-schema",
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"--include-rules=$schema_include_rules",
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] + rebase_path(invoker.sources, root_build_dir) +
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rebase_path(uncompiled_sources, root_build_dir) +
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rebase_path(uncompiled_bundle_schema_sources, root_build_dir)
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}
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}
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if (bundle_registration) {
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assert(defined(invoker.bundle_name),
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"\"bundle_name\" must be defined for bundle registrations")
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uncompiled_sources = []
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if (defined(invoker.uncompiled_sources)) {
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uncompiled_sources = invoker.uncompiled_sources
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}
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assert(defined(invoker.impl_dir),
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"\"impl_dir\" must be defined for the $target_name template.")
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# Child directory inside the generated file tree.
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gen_child_dir = rebase_path(invoker.impl_dir, "//")
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bundle_generator_registration_name =
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target_name + "_bundle_generator_registration"
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action(bundle_generator_registration_name) {
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script = compiler_script
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inputs = compiler_sources + invoker.sources + uncompiled_sources
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outputs = [
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"$root_gen_dir/$gen_child_dir/generated_api_registration.cc",
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"$root_gen_dir/$gen_child_dir/generated_api_registration.h",
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]
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args = [
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"--root=" + rebase_path("//", root_build_dir),
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"--destdir=" + rebase_path(root_gen_dir, root_build_dir),
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"--namespace=$root_namespace",
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"--bundle-name=" + invoker.bundle_name,
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"--generator=cpp-bundle-registration",
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"--impl-dir=$gen_child_dir",
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"--include-rules=$schema_include_rules",
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] + rebase_path(invoker.sources, root_build_dir) +
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rebase_path(uncompiled_sources, root_build_dir)
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}
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}
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# Compute the contents of the library/source set.
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lib_sources = invoker.sources
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lib_deps = []
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lib_public_deps = []
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lib_extra_configs = []
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if (defined(invoker.configs)) {
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lib_extra_configs += invoker.configs
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}
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if (schemas) {
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lib_sources += get_target_outputs(":$schema_generator_name")
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lib_public_deps += [ ":$schema_generator_name" ]
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lib_deps += [ "//tools/json_schema_compiler:generated_api_util" ]
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lib_extra_configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
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}
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if (bundle) {
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lib_sources += get_target_outputs(":$bundle_generator_schema_name")
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lib_deps += [ ":$bundle_generator_schema_name" ]
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}
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if (bundle_registration) {
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lib_sources += get_target_outputs(":$bundle_generator_registration_name")
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lib_deps += [ ":$bundle_generator_registration_name" ]
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}
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if (defined(invoker.deps)) {
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lib_deps += invoker.deps
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}
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static_library(target_name) {
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sources = lib_sources
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deps = lib_deps
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public_deps = lib_public_deps
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configs += lib_extra_configs
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public_configs = [ ":$generated_config_name" ]
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if (defined(invoker.visibility)) {
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visibility = invoker.visibility
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}
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if (defined(invoker.output_name)) {
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output_name = invoker.output_name
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}
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}
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}
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