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| 1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
| 2 # Copyright (c) 2012 The Chromium Authors. All rights reserved. | 2 # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 3 # Use of this source code is governed by a BSD-style license that can be | 3 # Use of this source code is governed by a BSD-style license that can be |
| 4 # found in the LICENSE file. | 4 # found in the LICENSE file. |
| 5 """Generator for C++ structs from api json files. | 5 """Generator for C++ structs from api json files. |
| 6 | 6 |
| 7 The purpose of this tool is to remove the need for hand-written code that | 7 The purpose of this tool is to remove the need for hand-written code that |
| 8 converts to and from base::Value types when receiving javascript api calls. | 8 converts to and from base::Value types when receiving javascript api calls. |
| 9 Originally written for generating code for extension apis. Reference schemas | 9 Originally written for generating code for extension apis. Reference schemas |
| 10 are in chrome/common/extensions/api. | 10 are in chrome/common/extensions/api. |
| 11 | 11 |
| 12 Usage example: | 12 Usage example: |
| 13 compiler.py --root /home/Work/src --namespace extensions windows.json | 13 compiler.py --root /home/Work/src --namespace extensions windows.json |
| 14 tabs.json | 14 tabs.json |
| 15 compiler.py --destdir gen --root /home/Work/src | 15 compiler.py --destdir gen --root /home/Work/src |
| 16 --namespace extensions windows.json tabs.json | 16 --namespace extensions windows.json tabs.json |
| 17 """ | 17 """ |
| 18 | 18 |
| 19 import optparse | 19 import optparse |
| 20 import os | 20 import os |
| 21 import shlex | 21 import shlex |
| 22 import sys | 22 import sys |
| 23 | 23 |
| 24 from cpp_bundle_generator import CppBundleGenerator | 24 from cpp_bundle_generator import CppBundleGenerator |
| 25 from cpp_generator import CppGenerator | 25 from cpp_generator import CppGenerator |
| 26 from cpp_type_generator import CppTypeGenerator | 26 from cpp_type_generator import CppTypeGenerator |
| 27 from dart_generator import DartGenerator | |
| 28 import json_schema | 27 import json_schema |
| 29 from cpp_namespace_environment import CppNamespaceEnvironment | 28 from cpp_namespace_environment import CppNamespaceEnvironment |
| 30 from model import Model | 29 from model import Model |
| 31 from schema_loader import SchemaLoader | 30 from schema_loader import SchemaLoader |
| 32 | 31 |
| 33 # Names of supported code generators, as specified on the command-line. | 32 # Names of supported code generators, as specified on the command-line. |
| 34 # First is default. | 33 # First is default. |
| 35 GENERATORS = ['cpp', 'cpp-bundle-registration', 'cpp-bundle-schema', 'dart'] | 34 GENERATORS = ['cpp', 'cpp-bundle-registration', 'cpp-bundle-schema'] |
| 36 | 35 |
| 37 def GenerateSchema(generator_name, | 36 def GenerateSchema(generator_name, |
| 38 file_paths, | 37 file_paths, |
| 39 root, | 38 root, |
| 40 destdir, | 39 destdir, |
| 41 cpp_namespace_pattern, | 40 cpp_namespace_pattern, |
| 42 dart_overrides_dir, | |
| 43 impl_dir, | 41 impl_dir, |
| 44 include_rules): | 42 include_rules): |
| 45 # Merge the source files into a single list of schemas. | 43 # Merge the source files into a single list of schemas. |
| 46 api_defs = [] | 44 api_defs = [] |
| 47 for file_path in file_paths: | 45 for file_path in file_paths: |
| 48 schema = os.path.relpath(file_path, root) | 46 schema = os.path.relpath(file_path, root) |
| 49 schema_loader = SchemaLoader( | 47 schema_loader = SchemaLoader( |
| 50 root, | 48 root, |
| 51 os.path.dirname(schema), | 49 os.path.dirname(schema), |
| 52 include_rules, | 50 include_rules, |
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| 110 generators = [ | 108 generators = [ |
| 111 ('generated_schemas.cc', cpp_bundle_generator.schemas_cc_generator), | 109 ('generated_schemas.cc', cpp_bundle_generator.schemas_cc_generator), |
| 112 ('generated_schemas.h', cpp_bundle_generator.schemas_h_generator) | 110 ('generated_schemas.h', cpp_bundle_generator.schemas_h_generator) |
| 113 ] | 111 ] |
| 114 elif generator_name == 'cpp': | 112 elif generator_name == 'cpp': |
| 115 cpp_generator = CppGenerator(type_generator) | 113 cpp_generator = CppGenerator(type_generator) |
| 116 generators = [ | 114 generators = [ |
| 117 ('%s.h' % filename_base, cpp_generator.h_generator), | 115 ('%s.h' % filename_base, cpp_generator.h_generator), |
| 118 ('%s.cc' % filename_base, cpp_generator.cc_generator) | 116 ('%s.cc' % filename_base, cpp_generator.cc_generator) |
| 119 ] | 117 ] |
| 120 elif generator_name == 'dart': | |
| 121 generators = [ | |
| 122 ('%s.dart' % namespace.unix_name, DartGenerator( | |
| 123 dart_overrides_dir)) | |
| 124 ] | |
| 125 else: | 118 else: |
| 126 raise Exception('Unrecognised generator %s' % generator_name) | 119 raise Exception('Unrecognised generator %s' % generator_name) |
| 127 | 120 |
| 128 output_code = [] | 121 output_code = [] |
| 129 for filename, generator in generators: | 122 for filename, generator in generators: |
| 130 code = generator.Generate(namespace).Render() | 123 code = generator.Generate(namespace).Render() |
| 131 if destdir: | 124 if destdir: |
| 132 if generator_name == 'cpp-bundle-registration': | 125 if generator_name == 'cpp-bundle-registration': |
| 133 # Function registrations must be output to impl_dir, since they link in | 126 # Function registrations must be output to impl_dir, since they link in |
| 134 # API implementations. | 127 # API implementations. |
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| 152 help='logical include root directory. Path to schema files from specified' | 145 help='logical include root directory. Path to schema files from specified' |
| 153 ' dir will be the include path.') | 146 ' dir will be the include path.') |
| 154 parser.add_option('-d', '--destdir', | 147 parser.add_option('-d', '--destdir', |
| 155 help='root directory to output generated files.') | 148 help='root directory to output generated files.') |
| 156 parser.add_option('-n', '--namespace', default='generated_api_schemas', | 149 parser.add_option('-n', '--namespace', default='generated_api_schemas', |
| 157 help='C++ namespace for generated files. e.g extensions::api.') | 150 help='C++ namespace for generated files. e.g extensions::api.') |
| 158 parser.add_option('-g', '--generator', default=GENERATORS[0], | 151 parser.add_option('-g', '--generator', default=GENERATORS[0], |
| 159 choices=GENERATORS, | 152 choices=GENERATORS, |
| 160 help='The generator to use to build the output code. Supported values are' | 153 help='The generator to use to build the output code. Supported values are' |
| 161 ' %s' % GENERATORS) | 154 ' %s' % GENERATORS) |
| 162 parser.add_option('-D', '--dart-overrides-dir', dest='dart_overrides_dir', | |
| 163 help='Adds custom dart from files in the given directory (Dart only).') | |
| 164 parser.add_option('-i', '--impl-dir', dest='impl_dir', | 155 parser.add_option('-i', '--impl-dir', dest='impl_dir', |
| 165 help='The root path of all API implementations') | 156 help='The root path of all API implementations') |
| 166 parser.add_option('-I', '--include-rules', | 157 parser.add_option('-I', '--include-rules', |
| 167 help='A list of paths to include when searching for referenced objects,' | 158 help='A list of paths to include when searching for referenced objects,' |
| 168 ' with the namespace separated by a \':\'. Example: ' | 159 ' with the namespace separated by a \':\'. Example: ' |
| 169 '/foo/bar:Foo::Bar::%(namespace)s') | 160 '/foo/bar:Foo::Bar::%(namespace)s') |
| 170 | 161 |
| 171 (opts, file_paths) = parser.parse_args() | 162 (opts, file_paths) = parser.parse_args() |
| 172 | 163 |
| 173 if not file_paths: | 164 if not file_paths: |
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| 185 raise ValueError('Invalid include rule "%s". Rules must be of ' | 176 raise ValueError('Invalid include rule "%s". Rules must be of ' |
| 186 'the form path:namespace' % path_and_namespace) | 177 'the form path:namespace' % path_and_namespace) |
| 187 return path_and_namespace.split(':', 1) | 178 return path_and_namespace.split(':', 1) |
| 188 | 179 |
| 189 include_rules = [] | 180 include_rules = [] |
| 190 if opts.include_rules: | 181 if opts.include_rules: |
| 191 include_rules = map(split_path_and_namespace, | 182 include_rules = map(split_path_and_namespace, |
| 192 shlex.split(opts.include_rules)) | 183 shlex.split(opts.include_rules)) |
| 193 | 184 |
| 194 result = GenerateSchema(opts.generator, file_paths, opts.root, opts.destdir, | 185 result = GenerateSchema(opts.generator, file_paths, opts.root, opts.destdir, |
| 195 opts.namespace, opts.dart_overrides_dir, | 186 opts.namespace, opts.impl_dir, include_rules) |
| 196 opts.impl_dir, include_rules) | |
| 197 if not opts.destdir: | 187 if not opts.destdir: |
| 198 print result | 188 print result |
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