bindings: Add toBoolean() to V8Binding.h

Source/bindings/scripts/v8_types.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 454 matching lines @@
 ################################################################################
 # V8 -> C++
 ################################################################################
 
 V8_VALUE_TO_CPP_VALUE = {
     # Basic
     'Date': 'toCoreDate({isolate}, {v8_value})',
     'DOMString': '{v8_value}',
     'ByteString': 'toByteString({isolate}, {arguments})',
     'USVString': 'toUSVString({isolate}, {arguments})',
-    'boolean': '{v8_value}->BooleanValue()',
+    'boolean': 'toBoolean({isolate}, {arguments})',
     'float': 'toRestrictedFloat({isolate}, {arguments})',
     'unrestricted float': 'toFloat({isolate}, {arguments})',
     'double': 'toRestrictedDouble({isolate}, {arguments})',
     'unrestricted double': 'toDouble({isolate}, {arguments})',
     'byte': 'toInt8({isolate}, {arguments})',
     'octet': 'toUInt8({isolate}, {arguments})',
     'short': 'toInt16({isolate}, {arguments})',
     'unsigned short': 'toUInt16({isolate}, {arguments})',
     'long': 'toInt32({isolate}, {arguments})',
     'unsigned long': 'toUInt32({isolate}, {arguments})',
     'long long': 'toInt64({isolate}, {arguments})',
     'unsigned long long': 'toUInt64({isolate}, {arguments})',
     # Interface types
     'Dictionary': 'Dictionary({v8_value}, {isolate}, exceptionState)',
     'EventTarget': 'toEventTarget({isolate}, {v8_value})',
     'NodeFilter': 'toNodeFilter({v8_value}, info.Holder(), ScriptState::current({isolate}))',
     'Promise': 'ScriptPromise::cast(ScriptState::current({isolate}), {v8_value})',
     'SerializedScriptValue': 'SerializedScriptValueFactory::instance().create({v8_value}, 0, 0, exceptionState, {isolate})',
     'ScriptValue': 'ScriptValue(ScriptState::current({isolate}), {v8_value})',
     'Window': 'toDOMWindow({isolate}, {v8_value})',
     'XPathNSResolver': 'toXPathNSResolver({isolate}, {v8_value})',
 }
 
 
 def v8_conversion_needs_exception_state(idl_type):
     return (idl_type.is_numeric_type or
             idl_type.is_enum or
             idl_type.is_dictionary or
-            idl_type.name in ('ByteString', 'Dictionary', 'USVString', 'SerializedScriptValue'))
+            idl_type.name in ('Boolean', 'ByteString', 'Dictionary', 'USVString', 'SerializedScriptValue'))
 
 IdlType.v8_conversion_needs_exception_state = property(v8_conversion_needs_exception_state)
 IdlArrayOrSequenceType.v8_conversion_needs_exception_state = True
 IdlUnionType.v8_conversion_needs_exception_state = True
 
 
 TRIVIAL_CONVERSIONS = frozenset([
     'any',
     'boolean',
     'Date',
@@ skipping 455 matching lines @@
     number_of_nullable_member_types_union)
 
 
 def includes_nullable_type_union(idl_type):
     # http://heycam.github.io/webidl/#dfn-includes-a-nullable-type
     return idl_type.number_of_nullable_member_types == 1
 
 IdlTypeBase.includes_nullable_type = False
 IdlNullableType.includes_nullable_type = True
 IdlUnionType.includes_nullable_type = property(includes_nullable_type_union)