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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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