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Side by Side Diff: extensions/generated_extensions_api.gni

Issue 597713002: Move json schema compiler target into build/ to match gyp (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@mojo_wk_dep
Patch Set: Created 6 years, 3 months ago
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1 # Copyright 2014 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
4
5 # Defines a static library corresponding to the output of schema compiler tools
6 # over a set of extensions API schemas (IDL or JSON format.) The library target
7 # has implicit hard dependencies on all schema files listed by the invoker and
8 # is itself a hard dependency.
9 #
10 # Invocations of this template may use the following variables:
11 #
12 # sources [required] A list of schema files to be compiled.
13 #
14 # root_namespace [required]
15 # A Python string substituion pattern used to generate the C++
16 # namespace for each API. Use %(namespace)s to replace with the API
17 # namespace, like "toplevel::%(namespace)s_api".
18 #
19 # schema_include_rules [optional]
20 # A list of paths to include when searching for referenced objects,
21 # with the namespace separated by a :.
22 # Example:
23 # [ '/foo/bar:Foo::Bar::%(namespace)s' ]
24 #
25 # schemas [optional, default = false]
26 # Boolean indicating if the schema files should be generated.
27 #
28 # bundle [optional, default = false]
29 # Boolean indicating if the schema bundle files should be generated.
30 #
31 # bundle_registration [optional, default = false]
32 # Boolean indicating if the API registration bundle files should be generated.
33 #
34 # impl_dir [required if bundle_registration = true, otherwise unused]
35 # The path containing C++ implementations of API functions. This path is
36 # used as the root path when looking for {schema}/{schema}_api.h headers
37 # when generating API registration bundles. Such headers, if found, are
38 # automatically included by the generated code.
39 #
40 # uncompiled_sources [optional, only used when bundle = true or
41 # bundle_registration = true]
42 # A list of schema files which should not be compiled, but which should still
43 # be processed for API bundle generation.
44 #
45 # deps [optional]
46 # If any deps are specified they will be inherited by the static library
47 # target.
48 #
49 # The static library target also inherits the visibility and output_name
50 # of its invoker.
51
52 template("generated_extensions_api") {
53 assert(defined(invoker.sources),
54 "\"sources\" must be defined for the $target_name template.")
55 assert(defined(invoker.root_namespace),
56 "\"root_namespace\" must be defined for the $target_name template.")
57
58 schemas = defined(invoker.schemas) && invoker.schemas
59 bundle = defined(invoker.bundle) && invoker.bundle
60 bundle_registration = defined(invoker.bundle_registration) &&
61 invoker.bundle_registration
62
63 schema_include_rules = ""
64 if (defined(invoker.schema_include_rules)) {
65 schema_include_rules = invoker.schema_include_rules
66 }
67
68 # Keep a copy of the target_name here since it will be trampled
69 # in nested targets.
70 target_visibility = [ ":$target_name" ]
71
72 generated_config_name = target_name + "_generated_config"
73 config(generated_config_name) {
74 include_dirs = [ target_gen_dir ]
75 visibility = target_visibility
76 }
77
78 sources = invoker.sources
79 root_namespace = invoker.root_namespace
80
81 compiler_root = "//tools/json_schema_compiler"
82 compiler_script = "$compiler_root/compiler.py"
83 compiler_sources = [
84 "$compiler_root/cc_generator.py",
85 "$compiler_root/code.py",
86 "$compiler_root/compiler.py",
87 "$compiler_root/cpp_generator.py",
88 "$compiler_root/cpp_type_generator.py",
89 "$compiler_root/cpp_util.py",
90 "$compiler_root/h_generator.py",
91 "$compiler_root/idl_schema.py",
92 "$compiler_root/model.py",
93 "$compiler_root/util_cc_helper.py",
94 ]
95
96 if (schemas) {
97 schema_generator_name = target_name + "_schema_generator"
98 action_foreach(schema_generator_name) {
99 script = compiler_script
100 inputs = compiler_sources
101 outputs = [
102 "$target_gen_dir/{{source_name_part}}.cc",
103 "$target_gen_dir/{{source_name_part}}.h",
104 ]
105 args = [
106 "{{source}}",
107 "--root=" + rebase_path("//", root_build_dir),
108 "--destdir=" + rebase_path(root_gen_dir, root_build_dir),
109 "--namespace=$root_namespace",
110 "--generator=cpp",
111 "--include-rules=$schema_include_rules" ]
112
113 if (defined(invoker.visibility)) {
114 # If visibility is restricted, add our own target to it.
115 visibility = [ invoker.visibility, target_visibility ]
116 }
117 }
118 }
119
120 if (bundle) {
121 uncompiled_sources = []
122 if (defined(invoker.uncompiled_sources)) {
123 uncompiled_sources = invoker.uncompiled_sources
124 }
125
126 bundle_generator_schema_name = target_name + "_bundle_generator_schema"
127 action(bundle_generator_schema_name) {
128 script = compiler_script
129 inputs = compiler_sources + sources + uncompiled_sources
130 outputs = [
131 "$target_gen_dir/generated_schemas.cc",
132 "$target_gen_dir/generated_schemas.h",
133 ]
134 args = [
135 "--root=" + rebase_path("//", root_build_dir),
136 "--destdir=" + rebase_path(root_gen_dir, root_build_dir),
137 "--namespace=$root_namespace",
138 "--generator=cpp-bundle-schema",
139 "--include-rules=$schema_include_rules" ]
140 + rebase_path(sources, root_build_dir)
141 + rebase_path(uncompiled_sources, root_build_dir)
142 }
143 }
144
145 if (bundle_registration) {
146 uncompiled_sources = []
147 if (defined(invoker.uncompiled_sources)) {
148 uncompiled_sources = invoker.uncompiled_sources
149 }
150
151 assert(defined(invoker.impl_dir),
152 "\"impl_dir\" must be defined for the $target_name template.")
153 impl_dir = invoker.impl_dir
154
155 bundle_generator_registration_name = target_name +
156 "_bundle_generator_registration"
157 action(bundle_generator_registration_name) {
158 script = compiler_script
159 inputs = compiler_sources + sources + uncompiled_sources
160 outputs = [
161 "$root_gen_dir/$impl_dir/generated_api_registration.cc",
162 "$root_gen_dir/$impl_dir/generated_api_registration.h",
163 ]
164 args = [
165 "--root=" + rebase_path("//", root_build_dir),
166 "--destdir=" + rebase_path(root_gen_dir, root_build_dir),
167 "--namespace=$root_namespace",
168 "--generator=cpp-bundle-registration",
169 "--impl-dir=" + rebase_path(impl_dir, "//"),
170 "--include-rules=$schema_include_rules" ]
171 + rebase_path(sources, root_build_dir)
172 + rebase_path(uncompiled_sources, root_build_dir)
173 }
174 }
175
176 source_set(target_name) {
177 sources = []
178 deps = []
179 public_deps = []
180
181 if (schemas) {
182 sources += get_target_outputs(":$schema_generator_name")
183 public_deps += [ ":$schema_generator_name" ]
184 deps += [ "//tools/json_schema_compiler:generated_api_util" ]
185 }
186
187 if (bundle) {
188 sources += get_target_outputs(":$bundle_generator_schema_name")
189 deps += [ ":$bundle_generator_schema_name" ]
190 }
191
192 if (bundle_registration) {
193 sources += get_target_outputs(":$bundle_generator_registration_name")
194 deps += [ ":$bundle_generator_registration_name" ]
195 }
196
197 if (defined(invoker.deps)) {
198 deps += invoker.deps
199 }
200 direct_dependent_configs = [ ":$generated_config_name" ]
201
202 if (defined(invoker.visibility)) {
203 visibility = invoker.visibility
204 }
205 if (defined(invoker.output_name)) {
206 output_name = invoker.output_name
207 }
208 }
209 }
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