| OLD | NEW |
|---|
| (Empty) |
| 1 #!/usr/bin/python | |
| 2 # Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 3 # for details. All rights reserved. Use of this source code is governed by a | |
| 4 # BSD-style license that can be found in the LICENSE file. | |
| 5 | |
| 6 """This module provides shared functionality for the systems to generate | |
| 7 native binding from the IDL database.""" | |
| 8 | |
| 9 import emitter | |
| 10 import os | |
| 11 import systemwrapping | |
| 12 from generator import * | |
| 13 from systembase import * | |
| 14 | |
| 15 class NativeImplementationSystem(System): | |
| 16 | |
| 17 def __init__(self, templates, database, emitters, auxiliary_dir, output_dir): | |
| 18 super(NativeImplementationSystem, self).__init__( | |
| 19 templates, database, emitters, output_dir) | |
| 20 | |
| 21 self._auxiliary_dir = auxiliary_dir | |
| 22 self._dom_public_files = [] | |
| 23 self._dom_impl_files = [] | |
| 24 self._cpp_header_files = [] | |
| 25 self._cpp_impl_files = [] | |
| 26 | |
| 27 def InterfaceGenerator(self, | |
| 28 interface, | |
| 29 common_prefix, | |
| 30 super_interface_name, | |
| 31 source_filter): | |
| 32 interface_name = interface.id | |
| 33 | |
| 34 dart_interface_path = self._FilePathForDartInterface(interface_name) | |
| 35 self._dom_public_files.append(dart_interface_path) | |
| 36 | |
| 37 if IsPureInterface(interface_name): | |
| 38 return None | |
| 39 | |
| 40 dart_impl_path = self._FilePathForDartImplementation(interface_name) | |
| 41 self._dom_impl_files.append(dart_impl_path) | |
| 42 | |
| 43 cpp_header_path = self._FilePathForCppHeader(interface_name) | |
| 44 self._cpp_header_files.append(cpp_header_path) | |
| 45 | |
| 46 cpp_impl_path = self._FilePathForCppImplementation(interface_name) | |
| 47 self._cpp_impl_files.append(cpp_impl_path) | |
| 48 | |
| 49 return NativeImplementationGenerator(self, interface, super_interface_name, | |
| 50 self._emitters.FileEmitter(dart_impl_path), | |
| 51 self._emitters.FileEmitter(cpp_header_path), | |
| 52 self._emitters.FileEmitter(cpp_impl_path), | |
| 53 self._BaseDefines(interface), | |
| 54 self._templates) | |
| 55 | |
| 56 def ProcessCallback(self, interface, info): | |
| 57 self._interface = interface | |
| 58 | |
| 59 dart_interface_path = self._FilePathForDartInterface(self._interface.id) | |
| 60 self._dom_public_files.append(dart_interface_path) | |
| 61 | |
| 62 cpp_impl_includes = set() | |
| 63 cpp_header_handlers_emitter = emitter.Emitter() | |
| 64 cpp_impl_handlers_emitter = emitter.Emitter() | |
| 65 class_name = 'Dart%s' % self._interface.id | |
| 66 for operation in interface.operations: | |
| 67 if operation.type.id == 'void': | |
| 68 return_type = 'void' | |
| 69 return_prefix = '' | |
| 70 else: | |
| 71 return_type = 'bool' | |
| 72 return_prefix = 'return ' | |
| 73 | |
| 74 parameters = [] | |
| 75 arguments = [] | |
| 76 for argument in operation.arguments: | |
| 77 argument_type_info = GetIDLTypeInfo(argument.type.id) | |
| 78 parameters.append('%s %s' % (argument_type_info.parameter_type(), | |
| 79 argument.id)) | |
| 80 arguments.append(argument.id) | |
| 81 cpp_impl_includes |= set(argument_type_info.conversion_includes()) | |
| 82 | |
| 83 cpp_header_handlers_emitter.Emit( | |
| 84 '\n' | |
| 85 ' virtual $TYPE handleEvent($PARAMETERS);\n', | |
| 86 TYPE=return_type, PARAMETERS=', '.join(parameters)) | |
| 87 | |
| 88 cpp_impl_handlers_emitter.Emit( | |
| 89 '\n' | |
| 90 '$TYPE $CLASS_NAME::handleEvent($PARAMETERS)\n' | |
| 91 '{\n' | |
| 92 ' $(RETURN_PREFIX)m_callback.handleEvent($ARGUMENTS);\n' | |
| 93 '}\n', | |
| 94 TYPE=return_type, | |
| 95 CLASS_NAME=class_name, | |
| 96 PARAMETERS=', '.join(parameters), | |
| 97 RETURN_PREFIX=return_prefix, | |
| 98 ARGUMENTS=', '.join(arguments)) | |
| 99 | |
| 100 cpp_header_path = self._FilePathForCppHeader(self._interface.id) | |
| 101 cpp_header_emitter = self._emitters.FileEmitter(cpp_header_path) | |
| 102 cpp_header_emitter.Emit( | |
| 103 self._templates.Load('cpp_callback_header.template'), | |
| 104 INTERFACE=self._interface.id, | |
| 105 HANDLERS=cpp_header_handlers_emitter.Fragments()) | |
| 106 | |
| 107 cpp_impl_path = self._FilePathForCppImplementation(self._interface.id) | |
| 108 self._cpp_impl_files.append(cpp_impl_path) | |
| 109 cpp_impl_emitter = self._emitters.FileEmitter(cpp_impl_path) | |
| 110 cpp_impl_emitter.Emit( | |
| 111 self._templates.Load('cpp_callback_implementation.template'), | |
| 112 INCLUDES=_GenerateCPPIncludes(cpp_impl_includes), | |
| 113 INTERFACE=self._interface.id, | |
| 114 HANDLERS=cpp_impl_handlers_emitter.Fragments()) | |
| 115 | |
| 116 def GenerateLibraries(self, lib_dir): | |
| 117 auxiliary_dir = os.path.relpath(self._auxiliary_dir, self._output_dir) | |
| 118 | |
| 119 # Generate dom_public.dart. | |
| 120 self._GenerateLibFile( | |
| 121 'dom_public.darttemplate', | |
| 122 os.path.join(self._output_dir, 'dom_public.dart'), | |
| 123 self._dom_public_files, | |
| 124 AUXILIARY_DIR=MassagePath(auxiliary_dir)); | |
| 125 | |
| 126 # Generate dom_impl.dart. | |
| 127 self._GenerateLibFile( | |
| 128 'dom_impl.darttemplate', | |
| 129 os.path.join(self._output_dir, 'dom_impl.dart'), | |
| 130 self._dom_impl_files, | |
| 131 AUXILIARY_DIR=MassagePath(auxiliary_dir)); | |
| 132 | |
| 133 # Generate DartDerivedSourcesXX.cpp. | |
| 134 partitions = 20 # FIXME: this should be configurable. | |
| 135 sources_count = len(self._cpp_impl_files) | |
| 136 for i in range(0, partitions): | |
| 137 derived_sources_path = os.path.join(self._output_dir, | |
| 138 'DartDerivedSources%02i.cpp' % (i + 1)) | |
| 139 | |
| 140 includes_emitter = emitter.Emitter() | |
| 141 for impl_file in self._cpp_impl_files[i::partitions]: | |
| 142 path = os.path.relpath(impl_file, os.path.dirname(derived_sources_path
)) | |
| 143 includes_emitter.Emit('#include "$PATH"\n', PATH=path) | |
| 144 | |
| 145 derived_sources_emitter = self._emitters.FileEmitter(derived_sources_path) | |
| 146 derived_sources_emitter.Emit( | |
| 147 self._templates.Load('cpp_derived_sources.template'), | |
| 148 INCLUDES=includes_emitter.Fragments()) | |
| 149 | |
| 150 # Generate DartResolver.cpp. | |
| 151 cpp_resolver_path = os.path.join(self._output_dir, 'DartResolver.cpp') | |
| 152 | |
| 153 includes_emitter = emitter.Emitter() | |
| 154 resolver_body_emitter = emitter.Emitter() | |
| 155 for file in self._cpp_header_files: | |
| 156 path = os.path.relpath(file, os.path.dirname(cpp_resolver_path)) | |
| 157 includes_emitter.Emit('#include "$PATH"\n', PATH=path) | |
| 158 resolver_body_emitter.Emit( | |
| 159 ' if (Dart_NativeFunction func = $CLASS_NAME::resolver(name, argu
mentCount))\n' | |
| 160 ' return func;\n', | |
| 161 CLASS_NAME=os.path.splitext(os.path.basename(path))[0]) | |
| 162 | |
| 163 cpp_resolver_emitter = self._emitters.FileEmitter(cpp_resolver_path) | |
| 164 cpp_resolver_emitter.Emit( | |
| 165 self._templates.Load('cpp_resolver.template'), | |
| 166 INCLUDES=includes_emitter.Fragments(), | |
| 167 RESOLVER_BODY=resolver_body_emitter.Fragments()) | |
| 168 | |
| 169 def Finish(self): | |
| 170 pass | |
| 171 | |
| 172 def _FilePathForDartInterface(self, interface_name): | |
| 173 return os.path.join(self._output_dir, 'src', 'interface', | |
| 174 '%s.dart' % interface_name) | |
| 175 | |
| 176 def _FilePathForDartImplementation(self, interface_name): | |
| 177 return os.path.join(self._output_dir, 'dart', | |
| 178 '%sImplementation.dart' % interface_name) | |
| 179 | |
| 180 def _FilePathForDartFactoryProvider(self, interface_name): | |
| 181 return os.path.join(self._output_dir, 'dart', | |
| 182 '_%sFactoryProvider.dart' % interface_name) | |
| 183 | |
| 184 def _FilePathForDartFactoryProviderImplementation(self, interface_name): | |
| 185 return os.path.join(self._output_dir, 'dart', | |
| 186 '%sFactoryProviderImplementation.dart' % interface_name) | |
| 187 | |
| 188 def _FilePathForCppHeader(self, interface_name): | |
| 189 return os.path.join(self._output_dir, 'cpp', 'Dart%s.h' % interface_name) | |
| 190 | |
| 191 def _FilePathForCppImplementation(self, interface_name): | |
| 192 return os.path.join(self._output_dir, 'cpp', 'Dart%s.cpp' % interface_name) | |
| 193 | |
| 194 | |
| 195 class NativeImplementationGenerator(systemwrapping.WrappingInterfaceGenerator): | |
| 196 """Generates Dart implementation for one DOM IDL interface.""" | |
| 197 | |
| 198 def __init__(self, system, interface, super_interface, | |
| 199 dart_impl_emitter, cpp_header_emitter, cpp_impl_emitter, | |
| 200 base_members, templates): | |
| 201 """Generates Dart and C++ code for the given interface. | |
| 202 | |
| 203 Args: | |
| 204 system: The NativeImplementationSystem. | |
| 205 interface: an IDLInterface instance. It is assumed that all types have | |
| 206 been converted to Dart types (e.g. int, String), unless they are in | |
| 207 the same package as the interface. | |
| 208 super_interface: A string or None, the name of the common interface that | |
| 209 this interface implements, if any. | |
| 210 dart_impl_emitter: an Emitter for the file containing the Dart | |
| 211 implementation class. | |
| 212 cpp_header_emitter: an Emitter for the file containing the C++ header. | |
| 213 cpp_impl_emitter: an Emitter for the file containing the C++ | |
| 214 implementation. | |
| 215 base_members: a set of names of members defined in a base class. This is | |
| 216 used to avoid static member 'overriding' in the generated Dart code. | |
| 217 """ | |
| 218 self._system = system | |
| 219 self._interface = interface | |
| 220 self._super_interface = super_interface | |
| 221 self._dart_impl_emitter = dart_impl_emitter | |
| 222 self._cpp_header_emitter = cpp_header_emitter | |
| 223 self._cpp_impl_emitter = cpp_impl_emitter | |
| 224 self._base_members = base_members | |
| 225 self._templates = templates | |
| 226 self._current_secondary_parent = None | |
| 227 | |
| 228 def StartInterface(self): | |
| 229 self._class_name = self._ImplClassName(self._interface.id) | |
| 230 self._interface_type_info = GetIDLTypeInfo(self._interface.id) | |
| 231 self._members_emitter = emitter.Emitter() | |
| 232 self._cpp_declarations_emitter = emitter.Emitter() | |
| 233 self._cpp_impl_includes = set() | |
| 234 self._cpp_definitions_emitter = emitter.Emitter() | |
| 235 self._cpp_resolver_emitter = emitter.Emitter() | |
| 236 | |
| 237 self._GenerateConstructors() | |
| 238 | |
| 239 def _GenerateConstructors(self): | |
| 240 if not self._IsConstructable(): | |
| 241 return | |
| 242 | |
| 243 # TODO(antonm): currently we don't have information about number of argument
s expected by | |
| 244 # the constructor, so name only dispatch. | |
| 245 self._cpp_resolver_emitter.Emit( | |
| 246 ' if (name == "$(INTERFACE_NAME)_constructor_Callback")\n' | |
| 247 ' return Dart$(INTERFACE_NAME)Internal::constructorCallback;\n', | |
| 248 INTERFACE_NAME=self._interface.id) | |
| 249 | |
| 250 | |
| 251 constructor_info = AnalyzeConstructor(self._interface) | |
| 252 if constructor_info: | |
| 253 self._EmitFactoryProvider(self._interface.id, constructor_info) | |
| 254 | |
| 255 if constructor_info is None: | |
| 256 # We have a custom implementation for it. | |
| 257 self._cpp_declarations_emitter.Emit( | |
| 258 '\n' | |
| 259 'void constructorCallback(Dart_NativeArguments);\n') | |
| 260 return | |
| 261 | |
| 262 raises_dom_exceptions = 'ConstructorRaisesException' in self._interface.ext_
attrs | |
| 263 raises_exceptions = raises_dom_exceptions or len(constructor_info.idl_args)
> 0 | |
| 264 arguments = [] | |
| 265 parameter_definitions_emitter = emitter.Emitter() | |
| 266 create_function = 'create' | |
| 267 if 'NamedConstructor' in self._interface.ext_attrs: | |
| 268 raises_exceptions = True | |
| 269 parameter_definitions_emitter.Emit( | |
| 270 ' DOMWindow* domWindow = DartUtilities::domWindowForCurrentIs
olate();\n' | |
| 271 ' if (!domWindow) {\n' | |
| 272 ' exception = Dart_NewString("Failed to fetch domWindow")
;\n' | |
| 273 ' goto fail;\n' | |
| 274 ' }\n' | |
| 275 ' Document* document = domWindow->document();\n') | |
| 276 self._cpp_impl_includes.add('"DOMWindow.h"') | |
| 277 arguments.append('document') | |
| 278 create_function = 'createForJSConstructor' | |
| 279 if 'CallWith' in self._interface.ext_attrs: | |
| 280 call_with = self._interface.ext_attrs['CallWith'] | |
| 281 if call_with == 'ScriptExecutionContext': | |
| 282 raises_exceptions = True | |
| 283 parameter_definitions_emitter.Emit( | |
| 284 ' ScriptExecutionContext* context = DartUtilities::scriptExec
utionContext();\n' | |
| 285 ' if (!context) {\n' | |
| 286 ' exception = Dart_NewString("Failed to create an object"
);\n' | |
| 287 ' goto fail;\n' | |
| 288 ' }\n') | |
| 289 arguments.append('context') | |
| 290 else: | |
| 291 raise Exception('Unsupported CallWith=%s attribute' % call_with) | |
| 292 | |
| 293 # Process constructor arguments. | |
| 294 for (i, arg) in enumerate(constructor_info.idl_args): | |
| 295 self._GenerateParameterAdapter(parameter_definitions_emitter, arg, i - 1) | |
| 296 arguments.append(arg.id) | |
| 297 | |
| 298 function_expression = '%s::%s' % (self._interface_type_info.native_type(), c
reate_function) | |
| 299 invocation = self._GenerateWebCoreInvocation(function_expression, arguments, | |
| 300 self._interface.id, self._interface.ext_attrs, raises_dom_exceptions) | |
| 301 self._GenerateNativeCallback(callback_name='constructorCallback', | |
| 302 parameter_definitions=parameter_definitions_emitter.Fragments(), | |
| 303 needs_receiver=False, invocation=invocation, | |
| 304 raises_exceptions=raises_exceptions) | |
| 305 | |
| 306 def _ImplClassName(self, interface_name): | |
| 307 return interface_name + 'Implementation' | |
| 308 | |
| 309 def _IsConstructable(self): | |
| 310 # FIXME: support ConstructorTemplate. | |
| 311 return set(['CustomConstructor', 'V8CustomConstructor', 'Constructor', 'Name
dConstructor']) & set(self._interface.ext_attrs) | |
| 312 | |
| 313 def _EmitFactoryProvider(self, interface_name, constructor_info): | |
| 314 factory_provider = '_' + interface_name + 'FactoryProvider' | |
| 315 implementation_class = interface_name + 'FactoryProviderImplementation' | |
| 316 implementation_function = 'create' + interface_name | |
| 317 native_implementation_function = '%s_constructor_Callback' % interface_name | |
| 318 | |
| 319 # Emit private factory provider in public library. | |
| 320 template_file = 'factoryprovider_%s.darttemplate' % interface_name | |
| 321 template = self._system._templates.TryLoad(template_file) | |
| 322 if not template: | |
| 323 template = self._system._templates.Load('factoryprovider.darttemplate') | |
| 324 | |
| 325 dart_impl_path = self._system._FilePathForDartFactoryProvider( | |
| 326 interface_name) | |
| 327 self._system._dom_public_files.append(dart_impl_path) | |
| 328 | |
| 329 emitter = self._system._emitters.FileEmitter(dart_impl_path) | |
| 330 emitter.Emit( | |
| 331 template, | |
| 332 FACTORY_PROVIDER=factory_provider, | |
| 333 CONSTRUCTOR=interface_name, | |
| 334 PARAMETERS=constructor_info.ParametersImplementationDeclaration(), | |
| 335 IMPL_CLASS=implementation_class, | |
| 336 IMPL_FUNCTION=implementation_function, | |
| 337 ARGUMENTS=constructor_info.ParametersAsArgumentList()) | |
| 338 | |
| 339 # Emit public implementation in implementation libary. | |
| 340 dart_impl_path = self._system._FilePathForDartFactoryProviderImplementation( | |
| 341 interface_name) | |
| 342 self._system._dom_impl_files.append(dart_impl_path) | |
| 343 emitter = self._system._emitters.FileEmitter(dart_impl_path) | |
| 344 emitter.Emit( | |
| 345 'class $IMPL_CLASS {\n' | |
| 346 ' static $INTERFACE_NAME $IMPL_FUNCTION($PARAMETERS)\n' | |
| 347 ' native "$NATIVE_NAME";\n' | |
| 348 '}', | |
| 349 INTERFACE_NAME=interface_name, | |
| 350 PARAMETERS=constructor_info.ParametersImplementationDeclaration(), | |
| 351 IMPL_CLASS=implementation_class, | |
| 352 IMPL_FUNCTION=implementation_function, | |
| 353 NATIVE_NAME=native_implementation_function) | |
| 354 | |
| 355 def FinishInterface(self): | |
| 356 base = self._BaseClassName(self._interface) | |
| 357 self._dart_impl_emitter.Emit( | |
| 358 self._templates.Load('dart_implementation.darttemplate'), | |
| 359 CLASS=self._class_name, BASE=base, INTERFACE=self._interface.id, | |
| 360 MEMBERS=self._members_emitter.Fragments()) | |
| 361 | |
| 362 self._GenerateCppHeader() | |
| 363 | |
| 364 self._cpp_impl_emitter.Emit( | |
| 365 self._templates.Load('cpp_implementation.template'), | |
| 366 INTERFACE=self._interface.id, | |
| 367 INCLUDES=_GenerateCPPIncludes(self._cpp_impl_includes), | |
| 368 CALLBACKS=self._cpp_definitions_emitter.Fragments(), | |
| 369 RESOLVER=self._cpp_resolver_emitter.Fragments()) | |
| 370 | |
| 371 def _GenerateCppHeader(self): | |
| 372 webcore_includes = _GenerateCPPIncludes(self._interface_type_info.webcore_in
cludes()) | |
| 373 | |
| 374 if ('CustomToJS' in self._interface.ext_attrs or | |
| 375 'CustomToJSObject' in self._interface.ext_attrs or | |
| 376 'PureInterface' in self._interface.ext_attrs or | |
| 377 'CPPPureInterface' in self._interface.ext_attrs or | |
| 378 self._interface_type_info.custom_to_dart()): | |
| 379 to_dart_value_template = ( | |
| 380 'Dart_Handle toDartValue($(WEBCORE_CLASS_NAME)* value);\n') | |
| 381 else: | |
| 382 to_dart_value_template = ( | |
| 383 'inline Dart_Handle toDartValue($(WEBCORE_CLASS_NAME)* value)\n' | |
| 384 '{\n' | |
| 385 ' return DartDOMWrapper::toDart<Dart$(INTERFACE)>(value);\n' | |
| 386 '}\n') | |
| 387 to_dart_value_emitter = emitter.Emitter() | |
| 388 to_dart_value_emitter.Emit( | |
| 389 to_dart_value_template, | |
| 390 INTERFACE=self._interface.id, | |
| 391 WEBCORE_CLASS_NAME=self._interface_type_info.native_type()) | |
| 392 | |
| 393 self._cpp_header_emitter.Emit( | |
| 394 self._templates.Load('cpp_header.template'), | |
| 395 INTERFACE=self._interface.id, | |
| 396 WEBCORE_INCLUDES=webcore_includes, | |
| 397 WEBCORE_CLASS_NAME=self._interface_type_info.native_type(), | |
| 398 TO_DART_VALUE=to_dart_value_emitter.Fragments(), | |
| 399 DECLARATIONS=self._cpp_declarations_emitter.Fragments()) | |
| 400 | |
| 401 def _GenerateCallWithHandling(self, node, parameter_definitions_emitter, argum
ents): | |
| 402 if 'CallWith' not in node.ext_attrs: | |
| 403 return False | |
| 404 | |
| 405 call_with = node.ext_attrs['CallWith'] | |
| 406 if call_with == 'ScriptExecutionContext': | |
| 407 parameter_definitions_emitter.Emit( | |
| 408 '\n' | |
| 409 ' ScriptExecutionContext* context = DartUtilities::scriptExecut
ionContext();\n' | |
| 410 ' if (!context)\n' | |
| 411 ' return;\n') | |
| 412 arguments.append('context') | |
| 413 return False | |
| 414 | |
| 415 if call_with == 'ScriptArguments|CallStack': | |
| 416 self._cpp_impl_includes.add('"DOMWindow.h"') | |
| 417 self._cpp_impl_includes.add('"ScriptArguments.h"') | |
| 418 self._cpp_impl_includes.add('"ScriptCallStack.h"') | |
| 419 self._cpp_impl_includes.add('"V8Proxy.h"') | |
| 420 self._cpp_impl_includes.add('"v8.h"') | |
| 421 parameter_definitions_emitter.Emit( | |
| 422 '\n' | |
| 423 ' v8::HandleScope handleScope;\n' | |
| 424 ' v8::Context::Scope scope(V8Proxy::mainWorldContext(DartUtilit
ies::domWindowForCurrentIsolate()->frame()));\n' | |
| 425 ' Dart_Handle customArgument = Dart_GetNativeArgument(args, $IN
DEX);\n' | |
| 426 ' RefPtr<ScriptArguments> scriptArguments(DartUtilities::create
ScriptArguments(customArgument, exception));\n' | |
| 427 ' if (!scriptArguments)\n' | |
| 428 ' goto fail;\n' | |
| 429 ' RefPtr<ScriptCallStack> scriptCallStack(DartUtilities::create
ScriptCallStack());\n' | |
| 430 ' if (!scriptCallStack->size())\n' | |
| 431 ' return;\n', | |
| 432 INDEX=len(node.arguments)) | |
| 433 arguments.extend(['scriptArguments', 'scriptCallStack']) | |
| 434 return True | |
| 435 | |
| 436 return False | |
| 437 | |
| 438 def AddAttribute(self, getter, setter): | |
| 439 # FIXME: Dartium does not support attribute event listeners. However, JS | |
| 440 # implementation falls back to them when addEventListener is not available. | |
| 441 # Make sure addEventListener is available in all EventTargets and remove | |
| 442 # this check. | |
| 443 if (getter or setter).type.id == 'EventListener': | |
| 444 return | |
| 445 | |
| 446 if 'CheckSecurityForNode' in (getter or setter).ext_attrs: | |
| 447 # FIXME: exclude from interface as well. | |
| 448 return | |
| 449 | |
| 450 # FIXME: these should go away. | |
| 451 classes_with_unsupported_custom_getters = [ | |
| 452 'Clipboard', 'Console', 'Coordinates', 'DeviceMotionEvent', | |
| 453 'DeviceOrientationEvent', 'FileReader', 'JavaScriptCallFrame', | |
| 454 'HTMLInputElement', 'HTMLOptionsCollection', 'HTMLOutputElement', | |
| 455 'ScriptProfileNode', 'WebKitAnimation'] | |
| 456 if (self._interface.id in classes_with_unsupported_custom_getters and | |
| 457 getter and set(['Custom', 'CustomGetter']) & set(getter.ext_attrs)): | |
| 458 return | |
| 459 | |
| 460 if getter: | |
| 461 self._AddGetter(getter) | |
| 462 if setter: | |
| 463 self._AddSetter(setter) | |
| 464 | |
| 465 def _AddGetter(self, attr): | |
| 466 type_info = GetIDLTypeInfo(attr.type.id) | |
| 467 dart_declaration = '%s get %s()' % ( | |
| 468 type_info.dart_type(), DartDomNameOfAttribute(attr)) | |
| 469 is_custom = 'Custom' in attr.ext_attrs or 'CustomGetter' in attr.ext_attrs | |
| 470 cpp_callback_name = self._GenerateNativeBinding(attr.id, 1, | |
| 471 dart_declaration, 'Getter', is_custom) | |
| 472 if is_custom: | |
| 473 return | |
| 474 | |
| 475 arguments = [] | |
| 476 parameter_definitions_emitter = emitter.Emitter() | |
| 477 raises_exceptions = self._GenerateCallWithHandling(attr, parameter_definitio
ns_emitter, arguments) | |
| 478 raises_exceptions = raises_exceptions or attr.get_raises | |
| 479 | |
| 480 if 'Reflect' in attr.ext_attrs: | |
| 481 webcore_function_name = GetIDLTypeInfo(attr.type.id).webcore_getter_name() | |
| 482 if 'URL' in attr.ext_attrs: | |
| 483 if 'NonEmpty' in attr.ext_attrs: | |
| 484 webcore_function_name = 'getNonEmptyURLAttribute' | |
| 485 else: | |
| 486 webcore_function_name = 'getURLAttribute' | |
| 487 arguments.append(self._GenerateWebCoreReflectionAttributeName(attr)) | |
| 488 else: | |
| 489 if attr.id == 'operator': | |
| 490 webcore_function_name = '_operator' | |
| 491 elif attr.id == 'target' and attr.type.id == 'SVGAnimatedString': | |
| 492 webcore_function_name = 'svgTarget' | |
| 493 else: | |
| 494 webcore_function_name = re.sub(r'^(HTML|URL|JS|XML|XSLT|\w)', | |
| 495 lambda s: s.group(1).lower(), | |
| 496 attr.id) | |
| 497 webcore_function_name = re.sub(r'^(create|exclusive)', | |
| 498 lambda s: 'is' + s.group(1).capitalize(), | |
| 499 webcore_function_name) | |
| 500 if attr.type.id.startswith('SVGAnimated'): | |
| 501 webcore_function_name += 'Animated' | |
| 502 | |
| 503 function_expression = self._GenerateWebCoreFunctionExpression(webcore_functi
on_name, attr) | |
| 504 invocation = self._GenerateWebCoreInvocation(function_expression, | |
| 505 arguments, attr.type.id, attr.ext_attrs, attr.get_raises) | |
| 506 self._GenerateNativeCallback(cpp_callback_name, parameter_definitions_emitte
r.Fragments(), | |
| 507 True, invocation, raises_exceptions=raises_exceptions) | |
| 508 | |
| 509 def _AddSetter(self, attr): | |
| 510 type_info = GetIDLTypeInfo(attr.type.id) | |
| 511 dart_declaration = 'void set %s(%s)' % ( | |
| 512 DartDomNameOfAttribute(attr), type_info.dart_type()) | |
| 513 is_custom = set(['Custom', 'CustomSetter', 'V8CustomSetter']) & set(attr.ext
_attrs) | |
| 514 cpp_callback_name = self._GenerateNativeBinding(attr.id, 2, | |
| 515 dart_declaration, 'Setter', is_custom) | |
| 516 if is_custom: | |
| 517 return | |
| 518 | |
| 519 arguments = [] | |
| 520 parameter_definitions_emitter = emitter.Emitter() | |
| 521 self._GenerateCallWithHandling(attr, parameter_definitions_emitter, argument
s) | |
| 522 | |
| 523 if 'Reflect' in attr.ext_attrs: | |
| 524 webcore_function_name = GetIDLTypeInfo(attr.type.id).webcore_setter_name() | |
| 525 arguments.append(self._GenerateWebCoreReflectionAttributeName(attr)) | |
| 526 else: | |
| 527 webcore_function_name = re.sub(r'^(xml(?=[A-Z])|\w)', | |
| 528 lambda s: s.group(1).upper(), | |
| 529 attr.id) | |
| 530 webcore_function_name = 'set%s' % webcore_function_name | |
| 531 if attr.type.id.startswith('SVGAnimated'): | |
| 532 webcore_function_name += 'Animated' | |
| 533 | |
| 534 arguments.append('value') | |
| 535 | |
| 536 self._GenerateParameterAdapter( | |
| 537 parameter_definitions_emitter, attr, 0, adapter_name='value') | |
| 538 parameter_definitions = parameter_definitions_emitter.Fragments() | |
| 539 | |
| 540 function_expression = self._GenerateWebCoreFunctionExpression(webcore_functi
on_name, attr) | |
| 541 invocation = self._GenerateWebCoreInvocation(function_expression, | |
| 542 arguments, 'void', attr.ext_attrs, attr.set_raises) | |
| 543 | |
| 544 self._GenerateNativeCallback(cpp_callback_name, parameter_definitions_emitte
r.Fragments(), | |
| 545 True, invocation, raises_exceptions=True) | |
| 546 | |
| 547 def _HasNativeIndexGetter(self, interface): | |
| 548 return ('CustomIndexedGetter' in interface.ext_attrs or | |
| 549 'NumericIndexedGetter' in interface.ext_attrs) | |
| 550 | |
| 551 def _EmitNativeIndexGetter(self, interface, element_type): | |
| 552 dart_declaration = '%s operator[](int index)' % element_type | |
| 553 self._GenerateNativeBinding('numericIndexGetter', 2, dart_declaration, | |
| 554 'Callback', True) | |
| 555 | |
| 556 def _EmitNativeIndexSetter(self, interface, element_type): | |
| 557 dart_declaration = 'void operator[]=(int index, %s value)' % element_type | |
| 558 self._GenerateNativeBinding('numericIndexSetter', 3, dart_declaration, | |
| 559 'Callback', True) | |
| 560 | |
| 561 def AddOperation(self, info): | |
| 562 """ | |
| 563 Arguments: | |
| 564 info: An OperationInfo object. | |
| 565 """ | |
| 566 | |
| 567 if 'CheckSecurityForNode' in info.overloads[0].ext_attrs: | |
| 568 # FIXME: exclude from interface as well. | |
| 569 return | |
| 570 | |
| 571 if 'Custom' in info.overloads[0].ext_attrs: | |
| 572 parameters = info.ParametersImplementationDeclaration() | |
| 573 dart_declaration = '%s %s(%s)' % (info.type_name, info.name, parameters) | |
| 574 argument_count = 1 + len(info.arg_infos) | |
| 575 self._GenerateNativeBinding(info.name, argument_count, dart_declaration, | |
| 576 'Callback', True) | |
| 577 return | |
| 578 | |
| 579 body = self._members_emitter.Emit( | |
| 580 '\n' | |
| 581 ' $TYPE $NAME($PARAMETERS) {\n' | |
| 582 '$!BODY' | |
| 583 ' }\n', | |
| 584 TYPE=info.type_name, | |
| 585 NAME=info.name, | |
| 586 PARAMETERS=info.ParametersImplementationDeclaration()) | |
| 587 | |
| 588 # Process in order of ascending number of arguments to ensure missing | |
| 589 # optional arguments are processed early. | |
| 590 overloads = sorted(info.overloads, | |
| 591 key=lambda overload: len(overload.arguments)) | |
| 592 self._native_version = 0 | |
| 593 fallthrough = self.GenerateDispatch(body, info, ' ', 0, overloads) | |
| 594 if fallthrough: | |
| 595 body.Emit(' throw "Incorrect number or type of arguments";\n'); | |
| 596 | |
| 597 def GenerateSingleOperation(self, dispatch_emitter, info, indent, operation): | |
| 598 """Generates a call to a single operation. | |
| 599 | |
| 600 Arguments: | |
| 601 dispatch_emitter: an dispatch_emitter for the body of a block of code. | |
| 602 info: the compound information about the operation and its overloads. | |
| 603 indent: an indentation string for generated code. | |
| 604 operation: the IDLOperation to call. | |
| 605 """ | |
| 606 | |
| 607 self._native_version += 1 | |
| 608 native_name = info.name | |
| 609 if self._native_version > 1: | |
| 610 native_name = '%s_%s' % (native_name, self._native_version) | |
| 611 argument_list = ', '.join([info.arg_infos[i][0] | |
| 612 for (i, arg) in enumerate(operation.arguments)]) | |
| 613 | |
| 614 # Generate dispatcher. | |
| 615 if info.type_name != 'void': | |
| 616 dispatch_emitter.Emit('$(INDENT)return _$NATIVENAME($ARGS);\n', | |
| 617 INDENT=indent, | |
| 618 NATIVENAME=native_name, | |
| 619 ARGS=argument_list) | |
| 620 else: | |
| 621 dispatch_emitter.Emit('$(INDENT)_$NATIVENAME($ARGS);\n' | |
| 622 '$(INDENT)return;\n', | |
| 623 INDENT=indent, | |
| 624 NATIVENAME=native_name, | |
| 625 ARGS=argument_list) | |
| 626 # Generate binding. | |
| 627 dart_declaration = '%s _%s(%s)' % (info.type_name, native_name, | |
| 628 argument_list) | |
| 629 is_custom = 'Custom' in operation.ext_attrs | |
| 630 cpp_callback_name = self._GenerateNativeBinding( | |
| 631 native_name, 1 + len(operation.arguments), dart_declaration, 'Callback', | |
| 632 is_custom) | |
| 633 if is_custom: | |
| 634 return | |
| 635 | |
| 636 # Generate callback. | |
| 637 webcore_function_name = operation.ext_attrs.get('ImplementedAs', operation.i
d) | |
| 638 | |
| 639 parameter_definitions_emitter = emitter.Emitter() | |
| 640 arguments = [] | |
| 641 raises_exceptions = self._GenerateCallWithHandling( | |
| 642 operation, parameter_definitions_emitter, arguments) | |
| 643 raises_exceptions = raises_exceptions or len(operation.arguments) > 0 or ope
ration.raises | |
| 644 | |
| 645 # Process Dart arguments. | |
| 646 for (i, argument) in enumerate(operation.arguments): | |
| 647 if (i == len(operation.arguments) - 1 and | |
| 648 self._interface.id == 'Console' and | |
| 649 argument.id == 'arg'): | |
| 650 # FIXME: we are skipping last argument here because it was added in | |
| 651 # supplemental dart.idl. Cleanup dart.idl and remove this check. | |
| 652 break | |
| 653 self._GenerateParameterAdapter(parameter_definitions_emitter, argument, i) | |
| 654 arguments.append(argument.id) | |
| 655 | |
| 656 if operation.id in ['addEventListener', 'removeEventListener']: | |
| 657 # addEventListener's and removeEventListener's last argument is marked | |
| 658 # as optional in idl, but is not optional in webcore implementation. | |
| 659 if len(operation.arguments) == 2: | |
| 660 arguments.append('false') | |
| 661 | |
| 662 if self._interface.id == 'CSSStyleDeclaration' and operation.id == 'setPrope
rty': | |
| 663 # CSSStyleDeclaration.setProperty priority parameter is optional in Dart | |
| 664 # idl, but is not optional in webcore implementation. | |
| 665 if len(operation.arguments) == 2: | |
| 666 arguments.append('String()') | |
| 667 | |
| 668 if 'NeedsUserGestureCheck' in operation.ext_attrs: | |
| 669 arguments.append('DartUtilities::processingUserGesture') | |
| 670 | |
| 671 function_expression = self._GenerateWebCoreFunctionExpression(webcore_functi
on_name, operation) | |
| 672 invocation = self._GenerateWebCoreInvocation(function_expression, arguments, | |
| 673 operation.type.id, operation.ext_attrs, operation.raises) | |
| 674 self._GenerateNativeCallback(cpp_callback_name, | |
| 675 parameter_definitions=parameter_definitions_emitter.Fragments(), | |
| 676 needs_receiver=True, invocation=invocation, | |
| 677 raises_exceptions=raises_exceptions) | |
| 678 | |
| 679 def _GenerateNativeCallback(self, callback_name, parameter_definitions, | |
| 680 needs_receiver, invocation, raises_exceptions): | |
| 681 | |
| 682 if needs_receiver: | |
| 683 parameter_definitions = emitter.Format( | |
| 684 ' $WEBCORE_CLASS_NAME* receiver = DartDOMWrapper::receiver< $WE
BCORE_CLASS_NAME >(args);\n' | |
| 685 ' $PARAMETER_DEFINITIONS\n', | |
| 686 WEBCORE_CLASS_NAME=self._interface_type_info.native_type(), | |
| 687 PARAMETER_DEFINITIONS=parameter_definitions) | |
| 688 | |
| 689 body = emitter.Format( | |
| 690 ' {\n' | |
| 691 '$PARAMETER_DEFINITIONS' | |
| 692 '$INVOCATION' | |
| 693 ' return;\n' | |
| 694 ' }\n', | |
| 695 PARAMETER_DEFINITIONS=parameter_definitions, | |
| 696 INVOCATION=invocation) | |
| 697 | |
| 698 if raises_exceptions: | |
| 699 body = emitter.Format( | |
| 700 ' Dart_Handle exception;\n' | |
| 701 '$BODY' | |
| 702 '\n' | |
| 703 'fail:\n' | |
| 704 ' Dart_ThrowException(exception);\n' | |
| 705 ' ASSERT_NOT_REACHED();\n', | |
| 706 BODY=body) | |
| 707 | |
| 708 self._cpp_definitions_emitter.Emit( | |
| 709 '\n' | |
| 710 'static void $CALLBACK_NAME(Dart_NativeArguments args)\n' | |
| 711 '{\n' | |
| 712 ' DartApiScope dartApiScope;\n' | |
| 713 '$BODY' | |
| 714 '}\n', | |
| 715 CALLBACK_NAME=callback_name, | |
| 716 BODY=body) | |
| 717 | |
| 718 def _GenerateParameterAdapter(self, emitter, idl_node, index, | |
| 719 adapter_name=None): | |
| 720 """idl_node is IDLArgument or IDLAttribute.""" | |
| 721 type_info = GetIDLTypeInfo(idl_node.type.id) | |
| 722 (adapter_type, include_name) = type_info.parameter_adapter_info() | |
| 723 if include_name: | |
| 724 self._cpp_impl_includes.add(include_name) | |
| 725 flags = '' | |
| 726 if (idl_node.ext_attrs.get('Optional') == 'DefaultIsNullString' or | |
| 727 'RequiredCppParameter' in idl_node.ext_attrs): | |
| 728 flags = ', DartUtilities::ConvertNullToDefaultValue' | |
| 729 emitter.Emit( | |
| 730 '\n' | |
| 731 ' const $ADAPTER_TYPE $NAME(Dart_GetNativeArgument(args, $INDEX)$
FLAGS);\n' | |
| 732 ' if (!$NAME.conversionSuccessful()) {\n' | |
| 733 ' exception = $NAME.exception();\n' | |
| 734 ' goto fail;\n' | |
| 735 ' }\n', | |
| 736 ADAPTER_TYPE=adapter_type, | |
| 737 NAME=adapter_name or idl_node.id, | |
| 738 INDEX=index + 1, | |
| 739 FLAGS=flags) | |
| 740 | |
| 741 def _GenerateNativeBinding(self, idl_name, argument_count, dart_declaration, | |
| 742 native_suffix, is_custom): | |
| 743 native_binding = '%s_%s_%s' % (self._interface.id, idl_name, native_suffix) | |
| 744 self._members_emitter.Emit( | |
| 745 '\n' | |
| 746 ' $DART_DECLARATION native "$NATIVE_BINDING";\n', | |
| 747 DART_DECLARATION=dart_declaration, NATIVE_BINDING=native_binding) | |
| 748 | |
| 749 cpp_callback_name = '%s%s' % (idl_name, native_suffix) | |
| 750 self._cpp_resolver_emitter.Emit( | |
| 751 ' if (argumentCount == $ARGC && name == "$NATIVE_BINDING")\n' | |
| 752 ' return Dart$(INTERFACE_NAME)Internal::$CPP_CALLBACK_NAME;\n', | |
| 753 ARGC=argument_count, | |
| 754 NATIVE_BINDING=native_binding, | |
| 755 INTERFACE_NAME=self._interface.id, | |
| 756 CPP_CALLBACK_NAME=cpp_callback_name) | |
| 757 | |
| 758 if is_custom: | |
| 759 self._cpp_declarations_emitter.Emit( | |
| 760 '\n' | |
| 761 'void $CPP_CALLBACK_NAME(Dart_NativeArguments);\n', | |
| 762 CPP_CALLBACK_NAME=cpp_callback_name) | |
| 763 | |
| 764 return cpp_callback_name | |
| 765 | |
| 766 def _GenerateWebCoreReflectionAttributeName(self, attr): | |
| 767 namespace = 'HTMLNames' | |
| 768 svg_exceptions = ['class', 'id', 'onabort', 'onclick', 'onerror', 'onload', | |
| 769 'onmousedown', 'onmousemove', 'onmouseout', 'onmouseover', | |
| 770 'onmouseup', 'onresize', 'onscroll', 'onunload'] | |
| 771 if self._interface.id.startswith('SVG') and not attr.id in svg_exceptions: | |
| 772 namespace = 'SVGNames' | |
| 773 self._cpp_impl_includes.add('"%s.h"' % namespace) | |
| 774 | |
| 775 attribute_name = attr.ext_attrs['Reflect'] or attr.id.lower() | |
| 776 return 'WebCore::%s::%sAttr' % (namespace, attribute_name) | |
| 777 | |
| 778 def _GenerateWebCoreFunctionExpression(self, function_name, idl_node): | |
| 779 if 'ImplementedBy' in idl_node.ext_attrs: | |
| 780 return '%s::%s' % (idl_node.ext_attrs['ImplementedBy'], function_name) | |
| 781 return '%s%s' % (self._interface_type_info.receiver(), function_name) | |
| 782 | |
| 783 def _GenerateWebCoreInvocation(self, function_expression, arguments, | |
| 784 idl_return_type, attributes, raises_dom_exceptions): | |
| 785 invocation_template = ' $FUNCTION_CALL;\n' | |
| 786 if idl_return_type != 'void': | |
| 787 return_type_info = GetIDLTypeInfo(idl_return_type) | |
| 788 self._cpp_impl_includes |= set(return_type_info.conversion_includes()) | |
| 789 | |
| 790 # Generate C++ cast based on idl return type. | |
| 791 conversion_cast = return_type_info.conversion_cast('$FUNCTION_CALL') | |
| 792 if isinstance(return_type_info, SVGTearOffIDLTypeInfo): | |
| 793 svg_primitive_types = ['SVGAngle', 'SVGLength', 'SVGMatrix', | |
| 794 'SVGNumber', 'SVGPoint', 'SVGRect', 'SVGTransform'] | |
| 795 conversion_cast = '%s::create($FUNCTION_CALL)' | |
| 796 if self._interface.id.startswith('SVGAnimated'): | |
| 797 conversion_cast = 'static_cast<%s*>($FUNCTION_CALL)' | |
| 798 elif return_type_info.idl_type() == 'SVGStringList': | |
| 799 conversion_cast = '%s::create(receiver, $FUNCTION_CALL)' | |
| 800 elif self._interface.id.endswith('List'): | |
| 801 conversion_cast = 'static_cast<%s*>($FUNCTION_CALL.get())' | |
| 802 elif return_type_info.idl_type() in svg_primitive_types: | |
| 803 conversion_cast = '%s::create($FUNCTION_CALL)' | |
| 804 else: | |
| 805 conversion_cast = 'static_cast<%s*>($FUNCTION_CALL)' | |
| 806 conversion_cast = conversion_cast % return_type_info.native_type() | |
| 807 | |
| 808 # Generate to Dart conversion of C++ value. | |
| 809 conversion_arguments = [conversion_cast] | |
| 810 if (return_type_info.idl_type() in ['DOMString', 'AtomicString'] and | |
| 811 'TreatReturnedNullStringAs' in attributes): | |
| 812 conversion_arguments.append('ConvertDefaultToNull') | |
| 813 | |
| 814 invocation_template = emitter.Format( | |
| 815 ' Dart_Handle returnValue = toDartValue($ARGUMENTS);\n' | |
| 816 ' if (returnValue)\n' | |
| 817 ' Dart_SetReturnValue(args, returnValue);\n', | |
| 818 ARGUMENTS=', '.join(conversion_arguments)) | |
| 819 | |
| 820 if raises_dom_exceptions: | |
| 821 # Add 'ec' argument to WebCore invocation and convert DOM exception to Dar
t exception. | |
| 822 arguments.append('ec') | |
| 823 invocation_template = emitter.Format( | |
| 824 ' ExceptionCode ec = 0;\n' | |
| 825 '$INVOCATION' | |
| 826 ' if (UNLIKELY(ec)) {\n' | |
| 827 ' exception = DartDOMWrapper::exceptionCodeToDartException(
ec);\n' | |
| 828 ' goto fail;\n' | |
| 829 ' }\n', | |
| 830 INVOCATION=invocation_template) | |
| 831 | |
| 832 if 'ImplementedBy' in attributes: | |
| 833 arguments.insert(0, 'receiver') | |
| 834 self._cpp_impl_includes.add('"%s.h"' % attributes['ImplementedBy']) | |
| 835 | |
| 836 return emitter.Format(invocation_template, | |
| 837 FUNCTION_CALL='%s(%s)' % (function_expression, ', '.join(arguments))) | |
| 838 | |
| 839 def _GenerateCPPIncludes(includes): | |
| 840 return ''.join(['#include %s\n' % include for include in includes]) | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 9845043:
Rename client/{dom,html} to lib/{dom,html} . (Closed)
Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/