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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.
# Defines a static library corresponding to the output of schema compiler tools
# over a set of extensions API schemas (IDL or JSON format.) The library target
# has implicit hard dependencies on all schema files listed by the invoker and
# is itself a hard dependency.
#
# Invocations of this template may use the following variables:
#
# sources [required] A list of schema files to be compiled.
#
# root_namespace [required]
# A Python string substituion pattern used to generate the C++
# namespace for each API. Use %(namespace)s to replace with the API
# namespace, like "toplevel::%(namespace)s_api".
#
# bundle [optional, default = false]
# Boolean indicating if the schema files should be bundled or not.
#
# impl_dir [required if bundle = true, otherwise unused]
# The path containing C++ implementations of API functions. This path is
# used as the root path when looking for {schema}/{schema}_api.h headers
# during the API bundle generation phase. Such headers, if found, are
# automatically included by the generated code.
#
# uncompiled_sources [optional, only used when bundle = true]
# A list of schema files which should not be compiled, but which should still
# be processed for API bundle generation.
#
# deps [optional]
# If any deps are specified they will be inherited by the static library
# target.
#
# The static libarary target also inherits the visibility and output_name
# of its invoker.
template("generated_extensions_api") {
assert(defined(invoker.sources),
"\"sources\" must be defined for the $target_name template.")
assert(defined(invoker.root_namespace),
"\"root_namespace\" must be defined for the $target_name template.")
bundle = defined(invoker.bundle) && invoker.bundle
# Keep a copy of the target_name here since it will be trampled
# in nested targets.
target_visibility = ":$target_name"
generated_config_name = target_name + "_generated_config"
config(generated_config_name) {
include_dirs = [ target_gen_dir ]
visibility = target_visibility
}
schemas = invoker.sources
root_namespace = invoker.root_namespace
compiler_root = "//tools/json_schema_compiler"
compiler_script = "$compiler_root/compiler.py"
compiler_sources = [
"$compiler_root/cc_generator.py",
"$compiler_root/code.py",
"$compiler_root/compiler.py",
"$compiler_root/cpp_generator.py",
"$compiler_root/cpp_type_generator.py",
"$compiler_root/cpp_util.py",
"$compiler_root/h_generator.py",
"$compiler_root/idl_schema.py",
"$compiler_root/model.py",
"$compiler_root/util_cc_helper.py",
]
schema_generator_name = target_name + "_schema_generator"
action_foreach(schema_generator_name) {
script = compiler_script
inputs = compiler_sources
sources = schemas
outputs = [
"$target_gen_dir/{{source_name_part}}.cc",
"$target_gen_dir/{{source_name_part}}.h",
]
args = [
"{{source}}",
"--root=" + rebase_path("//", root_build_dir),
"--destdir=" + rebase_path(root_gen_dir, root_build_dir),
"--namespace=$root_namespace",
"--generator=cpp" ]
visibility = target_visibility
}
if (bundle) {
assert(defined(invoker.impl_dir),
"\"impl_dir\" must be defined for the $target_name template.")
impl_dir = invoker.impl_dir
uncompiled_schemas = []
if (defined(invoker.uncompiled_sources)) {
uncompiled_schemas = invoker.uncompiled_sources
}
bundle_generator_name = target_name + "_bundle_generator"
action(bundle_generator_name) {
script = compiler_script
inputs = compiler_sources + schemas + uncompiled_schemas
outputs = [
"$target_gen_dir/generated_api.cc",
"$target_gen_dir/generated_api.h",
"$target_gen_dir/generated_schemas.cc",
"$target_gen_dir/generated_schemas.h",
]
args = [
"--root=" + rebase_path("//", root_build_dir),
"--destdir=" + rebase_path(root_gen_dir, root_build_dir),
"--namespace=$root_namespace",
"--generator=cpp-bundle",
"--impl-dir=" + rebase_path(impl_dir, "//"),
] +
rebase_path(schemas, root_build_dir) +
rebase_path(uncompiled_schemas, root_build_dir)
}
}
source_set(target_name) {
sources = get_target_outputs(":$schema_generator_name")
deps = [
":$schema_generator_name",
"//tools/json_schema_compiler:generated_api_util",
]
if (bundle) {
sources += get_target_outputs(":$bundle_generator_name")
deps += [ ":$bundle_generator_name" ]
}
if (defined(invoker.deps)) {
deps += invoker.deps
}
direct_dependent_configs = [ ":$generated_config_name" ]
if (defined(invoker.visibility)) {
visibility = invoker.visibility
}
if (defined(invoker.output_name)) {
output_name = invoker.output_name
}
}
}
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