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| 1 # Copyright (C) 2013 Google Inc. All rights reserved. | |
| 2 # | |
| 3 # Redistribution and use in source and binary forms, with or without | |
| 4 # modification, are permitted provided that the following conditions are | |
| 5 # met: | |
| 6 # | |
| 7 # * Redistributions of source code must retain the above copyright | |
| 8 # notice, this list of conditions and the following disclaimer. | |
| 9 # * Redistributions in binary form must reproduce the above | |
| 10 # copyright notice, this list of conditions and the following disclaimer | |
| 11 # in the documentation and/or other materials provided with the | |
| 12 # distribution. | |
| 13 # * Neither the name of Google Inc. nor the names of its | |
| 14 # contributors may be used to endorse or promote products derived from | |
| 15 # this software without specific prior written permission. | |
| 16 # | |
| 17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 | |
| 29 """Generate template values for attributes. | |
| 30 | |
| 31 Extends IdlType with property |constructor_type_name|. | |
| 32 | |
| 33 Design doc: http://www.chromium.org/developers/design-documents/idl-compiler | |
| 34 """ | |
| 35 | |
| 36 import idl_types | |
| 37 from dart_interface import suppress_getter, suppress_setter | |
| 38 import dart_types | |
| 39 from dart_utilities import DartUtilities | |
| 40 from v8_globals import interfaces | |
| 41 | |
| 42 import v8_attributes | |
| 43 | |
| 44 | |
| 45 def attribute_context(interface, attribute): | |
| 46 # Call v8's implementation. | |
| 47 context = v8_attributes.attribute_context(interface, attribute) | |
| 48 | |
| 49 extended_attributes = attribute.extended_attributes | |
| 50 | |
| 51 # Augment's Dart's information to context. | |
| 52 idl_type = attribute.idl_type | |
| 53 base_idl_type = idl_type.base_type | |
| 54 # TODO(terry): Work around for DOMString[] base should be IDLTypeArray | |
| 55 if base_idl_type == None: | |
| 56 # Returns Array or Sequence. | |
| 57 base_idl_type = idl_type.name | |
| 58 | |
| 59 # [Custom] | |
| 60 has_custom_getter = (('Custom' in extended_attributes and | |
| 61 extended_attributes['Custom'] in [None, 'Getter']) or | |
| 62 ('DartCustom' in extended_attributes and | |
| 63 extended_attributes['DartCustom'] in [None, 'Getter',
'New'])) | |
| 64 has_custom_setter = (not attribute.is_read_only and | |
| 65 (('Custom' in extended_attributes and | |
| 66 extended_attributes['Custom'] in [None, 'Setter']) or | |
| 67 ('DartCustom' in extended_attributes and | |
| 68 extended_attributes['DartCustom'] in [None, 'Setter',
'New']))) | |
| 69 | |
| 70 is_call_with_script_state = DartUtilities.has_extended_attribute_value(attri
bute, 'CallWith', 'ScriptState') | |
| 71 | |
| 72 is_auto_scope = not 'DartNoAutoScope' in extended_attributes | |
| 73 | |
| 74 context.update({ | |
| 75 'activity_logging_world_list_for_getter': DartUtilities.activity_logging_w
orld_list(attribute, 'Getter'), # [ActivityLogging] | |
| 76 'activity_logging_world_list_for_setter': DartUtilities.activity_logging_w
orld_list(attribute, 'Setter'), # [ActivityLogging] | |
| 77 'deprecate_as': DartUtilities.deprecate_as(attribute), # [DeprecateAs] | |
| 78 'has_custom_getter': has_custom_getter, | |
| 79 'has_custom_setter': has_custom_setter, | |
| 80 'is_auto_scope': is_auto_scope, # Used internally (outside of templates)
. | |
| 81 'is_call_with_script_state': is_call_with_script_state, | |
| 82 'auto_scope': DartUtilities.bool_to_cpp(is_auto_scope), | |
| 83 'measure_as': DartUtilities.measure_as(attribute), # [MeasureAs] | |
| 84 'v8_type': dart_types.v8_type(base_idl_type), | |
| 85 }) | |
| 86 | |
| 87 if v8_attributes.is_constructor_attribute(attribute): | |
| 88 v8_attributes.constructor_getter_context(interface, attribute, context) | |
| 89 return context | |
| 90 if not v8_attributes.has_custom_getter(attribute): | |
| 91 getter_context(interface, attribute, context) | |
| 92 if (not attribute.is_read_only): | |
| 93 # FIXME: We did not previously support the PutForwards attribute, so I a
m | |
| 94 # disabling it here for now to get things compiling. | |
| 95 # We may wish to revisit this. | |
| 96 # if (not has_custom_setter(attribute) and | |
| 97 # (not attribute.is_read_only or 'PutForwards' in extended_attributes)): | |
| 98 setter_context(interface, attribute, context) | |
| 99 | |
| 100 native_entry_getter = \ | |
| 101 DartUtilities.generate_native_entry( | |
| 102 interface.name, attribute.name, 'Getter', attribute.is_static, 0) | |
| 103 native_entry_setter = \ | |
| 104 DartUtilities.generate_native_entry( | |
| 105 interface.name, attribute.name, 'Setter', attribute.is_static, 1) | |
| 106 context.update({ | |
| 107 'native_entry_getter': native_entry_getter, | |
| 108 'native_entry_setter': native_entry_setter, | |
| 109 }) | |
| 110 | |
| 111 return context | |
| 112 | |
| 113 | |
| 114 ################################################################################ | |
| 115 # Getter | |
| 116 ################################################################################ | |
| 117 | |
| 118 def getter_context(interface, attribute, context): | |
| 119 v8_attributes.getter_context(interface, attribute, context) | |
| 120 | |
| 121 idl_type = attribute.idl_type | |
| 122 base_idl_type = idl_type.base_type | |
| 123 extended_attributes = attribute.extended_attributes | |
| 124 | |
| 125 cpp_value = getter_expression(interface, attribute, context) | |
| 126 # Normally we can inline the function call into the return statement to | |
| 127 # avoid the overhead of using a Ref<> temporary, but for some cases | |
| 128 # (nullable types, EventHandler, [CachedAttribute], or if there are | |
| 129 # exceptions), we need to use a local variable. | |
| 130 # FIXME: check if compilers are smart enough to inline this, and if so, | |
| 131 # always use a local variable (for readability and CG simplicity). | |
| 132 release = False | |
| 133 if (idl_type.is_nullable or | |
| 134 base_idl_type == 'EventHandler' or | |
| 135 'CachedAttribute' in extended_attributes or | |
| 136 'ReflectOnly' in extended_attributes or | |
| 137 context['is_getter_raises_exception']): | |
| 138 context['cpp_value_original'] = cpp_value | |
| 139 cpp_value = 'result' | |
| 140 # EventHandler has special handling | |
| 141 if base_idl_type != 'EventHandler' and idl_type.is_interface_type: | |
| 142 release = True | |
| 143 | |
| 144 dart_set_return_value = \ | |
| 145 idl_type.dart_set_return_value(cpp_value, | |
| 146 extended_attributes=extended_attributes, | |
| 147 script_wrappable='impl', | |
| 148 release=release, | |
| 149 for_main_world=False, | |
| 150 auto_scope=context['is_auto_scope']) | |
| 151 | |
| 152 # TODO(terry): Should be able to eliminate suppress_getter as we move from | |
| 153 # IGNORE_MEMBERS to DartSuppress in the IDL. | |
| 154 suppress = (suppress_getter(interface.name, attribute.name) or | |
| 155 DartUtilities.has_extended_attribute_value(attribute, 'DartSuppr
ess', 'Getter')) | |
| 156 | |
| 157 context.update({ | |
| 158 'cpp_value': cpp_value, | |
| 159 'dart_set_return_value': dart_set_return_value, | |
| 160 'is_getter_suppressed': suppress, | |
| 161 }) | |
| 162 | |
| 163 | |
| 164 def getter_expression(interface, attribute, context): | |
| 165 v8_attributes.getter_expression(interface, attribute, context) | |
| 166 | |
| 167 arguments = [] | |
| 168 this_getter_base_name = v8_attributes.getter_base_name(interface, attribute,
arguments) | |
| 169 getter_name = DartUtilities.scoped_name(interface, attribute, this_getter_ba
se_name) | |
| 170 | |
| 171 arguments.extend(DartUtilities.call_with_arguments( | |
| 172 attribute.extended_attributes.get('CallWith'))) | |
| 173 if ('PartialInterfaceImplementedAs' in attribute.extended_attributes and | |
| 174 not attribute.is_static): | |
| 175 # Pass by reference. | |
| 176 arguments.append('*receiver') | |
| 177 | |
| 178 if attribute.idl_type.is_explicit_nullable: | |
| 179 arguments.append('isNull') | |
| 180 if context['is_getter_raises_exception']: | |
| 181 arguments.append('es') | |
| 182 return '%s(%s)' % (getter_name, ', '.join(arguments)) | |
| 183 | |
| 184 | |
| 185 ################################################################################ | |
| 186 # Setter | |
| 187 ################################################################################ | |
| 188 | |
| 189 def setter_context(interface, attribute, context): | |
| 190 v8_attributes.setter_context(interface, attribute, context) | |
| 191 | |
| 192 def target_attribute(): | |
| 193 target_interface_name = attribute.idl_type.base_type | |
| 194 target_attribute_name = extended_attributes['PutForwards'] | |
| 195 target_interface = interfaces[target_interface_name] | |
| 196 try: | |
| 197 return next(attribute | |
| 198 for attribute in target_interface.attributes | |
| 199 if attribute.name == target_attribute_name) | |
| 200 except StopIteration: | |
| 201 raise Exception('[PutForward] target not found:\n' | |
| 202 'Attribute "%s" is not present in interface "%s"' % | |
| 203 (target_attribute_name, target_interface_name)) | |
| 204 | |
| 205 extended_attributes = attribute.extended_attributes | |
| 206 | |
| 207 if 'PutForwards' in extended_attributes: | |
| 208 # Use target attribute in place of original attribute | |
| 209 attribute = target_attribute() | |
| 210 this_cpp_type = 'DartStringAdapter' | |
| 211 else: | |
| 212 this_cpp_type = context['cpp_type'] | |
| 213 | |
| 214 idl_type = attribute.idl_type | |
| 215 | |
| 216 # TODO(terry): Should be able to eliminate suppress_setter as we move from | |
| 217 # IGNORE_MEMBERS to DartSuppress in the IDL. | |
| 218 suppress = (suppress_setter(interface.name, attribute.name) or | |
| 219 DartUtilities.has_extended_attribute_value(attribute, 'DartSuppr
ess', 'Setter')) | |
| 220 context.update({ | |
| 221 'has_setter_exception_state': ( | |
| 222 context['is_setter_raises_exception'] or context['has_type_checking_
interface'] or | |
| 223 idl_type.is_integer_type), | |
| 224 'is_setter_suppressed': suppress, | |
| 225 'setter_lvalue': dart_types.check_reserved_name(attribute.name), | |
| 226 'cpp_type': this_cpp_type, | |
| 227 'local_cpp_type': idl_type.cpp_type_args(attribute.extended_attributes,
raw_type=True), | |
| 228 'dart_value_to_local_cpp_value': | |
| 229 attribute.idl_type.dart_value_to_local_cpp_value( | |
| 230 extended_attributes, attribute.name, False, | |
| 231 context['has_type_checking_interface'], 1, | |
| 232 context['is_auto_scope']), | |
| 233 }) | |
| 234 | |
| 235 # setter_expression() depends on context values we set above. | |
| 236 context['cpp_setter'] = setter_expression(interface, attribute, context) | |
| 237 | |
| 238 | |
| 239 def setter_expression(interface, attribute, context): | |
| 240 extended_attributes = attribute.extended_attributes | |
| 241 arguments = DartUtilities.call_with_arguments( | |
| 242 extended_attributes.get('SetterCallWith') or | |
| 243 extended_attributes.get('CallWith')) | |
| 244 | |
| 245 this_setter_base_name = v8_attributes.setter_base_name(interface, attribute,
arguments) | |
| 246 setter_name = DartUtilities.scoped_name(interface, attribute, this_setter_ba
se_name) | |
| 247 | |
| 248 if ('PartialInterfaceImplementedAs' in extended_attributes and | |
| 249 not attribute.is_static): | |
| 250 arguments.append('*receiver') | |
| 251 idl_type = attribute.idl_type | |
| 252 if idl_type.base_type == 'EventHandler': | |
| 253 getter_name = DartUtilities.scoped_name(interface, attribute, DartUtilit
ies.cpp_name(attribute)) | |
| 254 context['event_handler_getter_expression'] = '%s(%s)' % ( | |
| 255 getter_name, ', '.join(arguments)) | |
| 256 # FIXME(vsm): Do we need to support this? If so, what's our analogue of | |
| 257 # V8EventListenerList? | |
| 258 arguments.append('nullptr') | |
| 259 # if (interface.name in ['Window', 'WorkerGlobalScope'] and | |
| 260 # attribute.name == 'onerror'): | |
| 261 # includes.add('bindings/core/v8/V8ErrorHandler.h') | |
| 262 # arguments.append('V8EventListenerList::findOrCreateWrapper<V8ErrorH
andler>(jsValue, true, info.GetIsolate())') | |
| 263 # else: | |
| 264 # arguments.append('V8EventListenerList::getEventListener(jsValue, tr
ue, ListenerFindOrCreate)') | |
| 265 else: | |
| 266 attribute_name = dart_types.check_reserved_name(attribute.name) | |
| 267 arguments.append(attribute_name) | |
| 268 if context['is_setter_raises_exception']: | |
| 269 arguments.append('es') | |
| 270 | |
| 271 return '%s(%s)' % (setter_name, ', '.join(arguments)) | |
| 272 | |
| 273 | |
| 274 ################################################################################ | |
| 275 # Attribute configuration | |
| 276 ################################################################################ | |
| 277 | |
| 278 # [Replaceable] | |
| 279 def setter_callback_name(interface, attribute): | |
| 280 cpp_class_name = DartUtilities.cpp_name(interface) | |
| 281 extended_attributes = attribute.extended_attributes | |
| 282 if (('Replaceable' in extended_attributes and | |
| 283 'PutForwards' not in extended_attributes) or | |
| 284 v8_attributes.is_constructor_attribute(attribute)): | |
| 285 # FIXME: rename to ForceSetAttributeOnThisCallback, since also used for
Constructors | |
| 286 return '{0}V8Internal::{0}ReplaceableAttributeSetterCallback'.format(cpp
_class_name) | |
| 287 # FIXME:disabling PutForwards for now since we didn't support it before | |
| 288 # if attribute.is_read_only and 'PutForwards' not in extended_attributes: | |
| 289 if attribute.is_read_only: | |
| 290 return '0' | |
| 291 return '%sV8Internal::%sAttributeSetterCallback' % (cpp_class_name, attribut
e.name) | |
| 292 | |
| 293 | |
| 294 ################################################################################ | |
| 295 # Constructors | |
| 296 ################################################################################ | |
| 297 | |
| 298 idl_types.IdlType.constructor_type_name = property( | |
| 299 # FIXME: replace this with a [ConstructorAttribute] extended attribute | |
| 300 lambda self: DartUtilities.strip_suffix(self.base_type, 'Constructor')) | |
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Chromium Code Reviews
Issue 1660113002:
Updated to Chrome 45 (2454) moved from SVN to git.
Base URL: https://github.com/dart-lang/webcore.git@roll_45