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1 #!/usr/bin/python | 1 #!/usr/bin/python |
2 # Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 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 | 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. | 4 # BSD-style license that can be found in the LICENSE file. |
5 | 5 |
6 """This module provides shared functionality for the system to generate | 6 """This module provides shared functionality for the system to generate |
7 dart:html APIs from the IDL database.""" | 7 dart:html APIs from the IDL database.""" |
8 | 8 |
9 import emitter | 9 import emitter |
10 from generator import AnalyzeOperation, ConstantOutputOrder, \ | 10 from generator import AnalyzeOperation, ConstantOutputOrder, \ |
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386 | 386 |
387 if is_void: | 387 if is_void: |
388 call_emitter = call_emitter.Emit('$(INDENT)$!CALL;\n$(INDENT)return;\n') | 388 call_emitter = call_emitter.Emit('$(INDENT)$!CALL;\n$(INDENT)return;\n') |
389 else: | 389 else: |
390 call_emitter = call_emitter.Emit('$(INDENT)return $!CALL;\n') | 390 call_emitter = call_emitter.Emit('$(INDENT)return $!CALL;\n') |
391 | 391 |
392 version[0] += 1 | 392 version[0] += 1 |
393 generate_call(stmts_emitter, call_emitter, | 393 generate_call(stmts_emitter, call_emitter, |
394 version[0], signature_index, argument_count) | 394 version[0], signature_index, argument_count) |
395 | 395 |
| 396 def IsTypeChecking(interface_argument): |
| 397 return 'LegacyInterfaceTypeChecking' in interface_argument.ext_attrs or \ |
| 398 self._database.HasInterface(interface_argument.id) |
| 399 |
396 def GenerateChecksAndCall(signature_index, argument_count): | 400 def GenerateChecksAndCall(signature_index, argument_count): |
397 checks = [] | 401 checks = [] |
398 typechecked_interface = \ | 402 typechecked_interface = IsTypeChecking(self._interface) |
399 ('TypeChecking' in self._interface.ext_attrs) and \ | |
400 ('Interface' in self._interface.ext_attrs['TypeChecking']) | |
401 | 403 |
402 for i in reversed(range(0, argument_count)): | 404 for i in reversed(range(0, argument_count)): |
403 argument = signatures[signature_index][i] | 405 argument = signatures[signature_index][i] |
404 parameter_name = parameter_names[i] | 406 parameter_name = parameter_names[i] |
405 | 407 |
406 test_type = self._NarrowToImplementationType(argument.type.id) | 408 test_type = self._NarrowToImplementationType(argument.type.id) |
407 | 409 |
408 if test_type in ['dynamic', 'Object']: | 410 if test_type in ['dynamic', 'Object']: |
409 checks.append('%s != null' % parameter_name) | 411 checks.append('%s != null' % parameter_name) |
410 elif not can_omit_type_check(test_type, i): | 412 elif not can_omit_type_check(test_type, i): |
411 typechecked = typechecked_interface or \ | 413 typechecked = typechecked_interface or IsTypeChecking(argument) |
412 ('TypeChecking' in argument.ext_attrs) and \ | |
413 ('Interface' in argument.ext_attrs['TypeChecking']) | |
414 converts_null = \ | 414 converts_null = \ |
415 ('TreatNullAs' in argument.ext_attrs) or \ | 415 ('TreatNullAs' in argument.ext_attrs) or \ |
416 (argument.default_value is not None) or \ | 416 (argument.default_value is not None) or \ |
417 (argument.default_value_is_null) | 417 (argument.default_value_is_null) |
418 if argument.type.nullable or converts_null or not typechecked: | 418 if argument.type.nullable or converts_null or not typechecked: |
419 checks.append('(%s is %s || %s == null)' % ( | 419 checks.append('(%s is %s || %s == null)' % ( |
420 parameter_name, test_type, parameter_name)) | 420 parameter_name, test_type, parameter_name)) |
421 else: | 421 else: |
422 checks.append('(%s is %s)' % ( | 422 checks.append('(%s is %s)' % ( |
423 parameter_name, test_type)) | 423 parameter_name, test_type)) |
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534 factory_constructor_name - The name of the constructor on the | 534 factory_constructor_name - The name of the constructor on the |
535 factory_name to call (calls an autogenerated FactoryProvider | 535 factory_name to call (calls an autogenerated FactoryProvider |
536 if unspecified) | 536 if unspecified) |
537 """ | 537 """ |
538 for constructor_info in constructors: | 538 for constructor_info in constructors: |
539 self._AddConstructor( | 539 self._AddConstructor( |
540 constructor_info, factory_name, factory_constructor_name) | 540 constructor_info, factory_name, factory_constructor_name) |
541 | 541 |
542 def _AddConstructor(self, | 542 def _AddConstructor(self, |
543 constructor_info, factory_name, factory_constructor_name): | 543 constructor_info, factory_name, factory_constructor_name): |
544 # Hack to ignore the Image constructor used by JavaScript. | 544 # Hack to ignore the constructor used by JavaScript. |
545 if ((self._interface.id == 'HTMLImageElement' or | 545 if ((self._interface.id == 'HTMLImageElement' or |
546 self._interface.id == 'Blob' or | 546 self._interface.id == 'Blob' or |
| 547 self._interface.id == 'TouchEvent' or |
547 self._interface.id == 'DOMException') | 548 self._interface.id == 'DOMException') |
548 and not constructor_info.pure_dart_constructor): | 549 and not constructor_info.pure_dart_constructor): |
549 return | 550 return |
550 | 551 |
551 if self.GenerateCustomFactory(constructor_info): | 552 if self.GenerateCustomFactory(constructor_info): |
552 return | 553 return |
553 | 554 |
554 metadata = self._metadata.GetFormattedMetadata( | 555 metadata = self._metadata.GetFormattedMetadata( |
555 self._library_name, self._interface, self._interface.id, ' ') | 556 self._library_name, self._interface, self._interface.id, ' ') |
556 | 557 |
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892 def _InputType(self, type_name, info): | 893 def _InputType(self, type_name, info): |
893 conversion = self._InputConversion(type_name, info.declared_name) | 894 conversion = self._InputConversion(type_name, info.declared_name) |
894 if conversion: | 895 if conversion: |
895 return conversion.input_type | 896 return conversion.input_type |
896 else: | 897 else: |
897 # If typedef it's a union return dynamic. | 898 # If typedef it's a union return dynamic. |
898 if self._database.HasTypeDef(type_name): | 899 if self._database.HasTypeDef(type_name): |
899 return 'dynamic' | 900 return 'dynamic' |
900 else: | 901 else: |
901 return self._NarrowInputType(type_name) if type_name else 'dynamic' | 902 return self._NarrowInputType(type_name) if type_name else 'dynamic' |
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