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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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351 | 351 |
352 version[0] += 1 | 352 version[0] += 1 |
353 generate_call(stmts_emitter, call_emitter, | 353 generate_call(stmts_emitter, call_emitter, |
354 version[0], signature_index, argument_count) | 354 version[0], signature_index, argument_count) |
355 | 355 |
356 def GenerateChecksAndCall(signature_index, argument_count): | 356 def GenerateChecksAndCall(signature_index, argument_count): |
357 checks = [] | 357 checks = [] |
358 for i in reversed(range(0, argument_count)): | 358 for i in reversed(range(0, argument_count)): |
359 argument = signatures[signature_index][i] | 359 argument = signatures[signature_index][i] |
360 parameter_name = parameter_names[i] | 360 parameter_name = parameter_names[i] |
361 test_type = self._DartType(argument.type.id) | 361 |
| 362 test_type = self._NarrowToImplementationType(argument.type.id) |
362 | 363 |
363 if test_type in ['dynamic', 'Object']: | 364 if test_type in ['dynamic', 'Object']: |
364 checks.append('%s != null' % parameter_name) | 365 checks.append('%s != null' % parameter_name) |
365 elif not can_omit_type_check(test_type, i): | 366 elif not can_omit_type_check(test_type, i): |
366 checks.append('(%s is %s || %s == null)' % ( | 367 checks.append('(%s is %s || %s == null)' % ( |
367 parameter_name, test_type, parameter_name)) | 368 parameter_name, test_type, parameter_name)) |
368 elif i >= number_of_required_in_dart: | 369 elif i >= number_of_required_in_dart: |
369 checks.append('%s != null' % parameter_name) | 370 checks.append('%s != null' % parameter_name) |
370 | 371 |
371 # There can be multiple presence checks. We need them all since a later | 372 # There can be multiple presence checks. We need them all since a later |
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748 # returned in generated code. | 749 # returned in generated code. |
749 assert(dart_name != 'HistoryBase' and dart_name != 'LocationBase') | 750 assert(dart_name != 'HistoryBase' and dart_name != 'LocationBase') |
750 if dart_name == 'Window': | 751 if dart_name == 'Window': |
751 return _secure_base_types[dart_name] | 752 return _secure_base_types[dart_name] |
752 return dart_name | 753 return dart_name |
753 | 754 |
754 def SecureBaseName(self, type_name): | 755 def SecureBaseName(self, type_name): |
755 if type_name in _secure_base_types: | 756 if type_name in _secure_base_types: |
756 return _secure_base_types[type_name] | 757 return _secure_base_types[type_name] |
757 | 758 |
| 759 def _NarrowToImplementationType(self, type_name): |
| 760 return self._type_registry.TypeInfo(type_name).narrow_dart_type() |
| 761 |
| 762 def _NarrowInputType(self, type_name): |
| 763 return self._NarrowToImplementationType(type_name) |
| 764 |
758 def _DartType(self, type_name): | 765 def _DartType(self, type_name): |
759 return self._type_registry.DartType(type_name) | 766 return self._type_registry.DartType(type_name) |
760 | 767 |
761 def _TypeInfo(self, type_name): | 768 def _TypeInfo(self, type_name): |
762 return self._type_registry.TypeInfo(type_name) | 769 return self._type_registry.TypeInfo(type_name) |
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