| # 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 |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| """Functions for type handling and type conversion (Blink/C++ <-> V8/JS). |
| |
| Spec: |
| http://www.w3.org/TR/WebIDL/#es-type-mapping |
| |
| FIXME: Not currently used in build. |
| This is a rewrite of the Perl IDL compiler in Python, but is not complete. |
| Once it is complete, we will switch all IDL files over to Python at once. |
| Until then, please work on the Perl IDL compiler. |
| For details, see bug http://crbug.com/239771 |
| """ |
| |
| import posixpath |
| import re |
| |
| from v8_globals import includes |
| import idl_definitions # for UnionType |
| from v8_utilities import strip_suffix |
| |
| ################################################################################ |
| # IDL types |
| ################################################################################ |
| |
| BASIC_TYPES = set([ |
| # Built-in, non-composite, non-object data types |
| # http://www.w3.org/TR/WebIDL/#dfn-primitive-type |
| 'boolean', |
| 'float', |
| # unrestricted float is not supported |
| 'double', |
| # unrestricted double is not supported |
| # integer types |
| # http://www.w3.org/TR/WebIDL/#dfn-integer-type |
| 'byte', |
| 'octet', |
| 'short', |
| 'unsigned short', |
| # int and unsigned are not IDL types |
| 'long', |
| 'unsigned long', |
| 'long long', |
| 'unsigned long long', |
| # http://www.w3.org/TR/WebIDL/#idl-types |
| 'DOMString', |
| 'Date', |
| # http://www.w3.org/TR/WebIDL/#es-type-mapping |
| 'void', |
| ]) |
| |
| enum_types = {} # name -> values |
| callback_function_types = set() |
| |
| |
| def array_or_sequence_type(idl_type): |
| return array_type(idl_type) or sequence_type(idl_type) |
| |
| |
| def array_type(idl_type): |
| matched = re.match(r'([\w\s]+)\[\]', idl_type) |
| return matched and matched.group(1) |
| |
| |
| def is_basic_type(idl_type): |
| return idl_type in BASIC_TYPES |
| |
| |
| def is_callback_function_type(idl_type): |
| return idl_type in callback_function_types |
| |
| |
| def set_callback_function_types(callback_functions): |
| callback_function_types.update(callback_functions.keys()) |
| |
| |
| def is_composite_type(idl_type): |
| return (idl_type == 'any' or |
| array_type(idl_type) or |
| sequence_type(idl_type) or |
| is_union_type(idl_type)) |
| |
| |
| def is_enum_type(idl_type): |
| return idl_type in enum_types |
| |
| |
| def enum_values(idl_type): |
| return enum_types.get(idl_type) |
| |
| |
| def set_enum_types(enumerations): |
| enum_types.update([[enum.name, enum.values] |
| for enum in enumerations.values()]) |
| |
| |
| def is_interface_type(idl_type): |
| # Anything that is not another type is an interface type. |
| # http://www.w3.org/TR/WebIDL/#idl-types |
| # http://www.w3.org/TR/WebIDL/#idl-interface |
| # In C++ these are RefPtr or PassRefPtr types. |
| return not(is_basic_type(idl_type) or |
| is_composite_type(idl_type) or |
| is_callback_function_type(idl_type) or |
| is_enum_type(idl_type) or |
| idl_type == 'object' or |
| idl_type == 'Promise') # Promise will be basic in future |
| |
| |
| def sequence_type(idl_type): |
| matched = re.match(r'sequence<([\w\s]+)>', idl_type) |
| return matched and matched.group(1) |
| |
| |
| def is_union_type(idl_type): |
| return isinstance(idl_type, idl_definitions.IdlUnionType) |
| |
| |
| ################################################################################ |
| # V8-specific type handling |
| ################################################################################ |
| |
| DOM_NODE_TYPES = set([ |
| 'Attr', |
| 'CDATASection', |
| 'CharacterData', |
| 'Comment', |
| 'Document', |
| 'DocumentFragment', |
| 'DocumentType', |
| 'Element', |
| 'Entity', |
| 'HTMLDocument', |
| 'Node', |
| 'Notation', |
| 'ProcessingInstruction', |
| 'ShadowRoot', |
| 'SVGDocument', |
| 'Text', |
| 'TestNode', |
| ]) |
| NON_WRAPPER_TYPES = set([ |
| 'CompareHow', |
| 'Dictionary', |
| 'MediaQueryListListener', |
| 'NodeFilter', |
| 'SerializedScriptValue', |
| ]) |
| TYPED_ARRAYS = { |
| # (cpp_type, v8_type), used by constructor templates |
| 'ArrayBuffer': None, |
| 'ArrayBufferView': None, |
| 'Float32Array': ('float', 'v8::kExternalFloatArray'), |
| 'Float64Array': ('double', 'v8::kExternalDoubleArray'), |
| 'Int8Array': ('signed char', 'v8::kExternalByteArray'), |
| 'Int16Array': ('short', 'v8::kExternalShortArray'), |
| 'Int32Array': ('int', 'v8::kExternalIntArray'), |
| 'Uint8Array': ('unsigned char', 'v8::kExternalUnsignedByteArray'), |
| 'Uint8ClampedArray': ('unsigned char', 'v8::kExternalPixelArray'), |
| 'Uint16Array': ('unsigned short', 'v8::kExternalUnsignedShortArray'), |
| 'Uint32Array': ('unsigned int', 'v8::kExternalUnsignedIntArray'), |
| } |
| |
| |
| def constructor_type(idl_type): |
| return strip_suffix(idl_type, 'Constructor') |
| |
| |
| def is_dom_node_type(idl_type): |
| return (idl_type in DOM_NODE_TYPES or |
| (idl_type.startswith(('HTML', 'SVG')) and |
| idl_type.endswith('Element'))) |
| |
| |
| def is_typed_array_type(idl_type): |
| return idl_type in TYPED_ARRAYS |
| |
| |
| def is_wrapper_type(idl_type): |
| return (is_interface_type(idl_type) and |
| idl_type not in NON_WRAPPER_TYPES) |
| |
| |
| ################################################################################ |
| # C++ types |
| ################################################################################ |
| |
| CPP_TYPE_SAME_AS_IDL_TYPE = set([ |
| 'double', |
| 'float', |
| 'long long', |
| 'unsigned long long', |
| ]) |
| CPP_INT_TYPES = set([ |
| 'byte', |
| 'long', |
| 'short', |
| ]) |
| CPP_UNSIGNED_TYPES = set([ |
| 'octet', |
| 'unsigned int', |
| 'unsigned long', |
| 'unsigned short', |
| ]) |
| CPP_SPECIAL_CONVERSION_RULES = { |
| 'CompareHow': 'Range::CompareHow', |
| 'Date': 'double', |
| 'Dictionary': 'Dictionary', |
| 'EventHandler': 'EventListener*', |
| 'Promise': 'ScriptPromise', |
| 'any': 'ScriptValue', |
| 'boolean': 'bool', |
| } |
| |
| def cpp_type(idl_type, extended_attributes=None, used_as_argument=False): |
| """Returns C++ type corresponding to IDL type.""" |
| def string_mode(): |
| # FIXME: the Web IDL spec requires 'EmptyString', not 'NullString', |
| # but we use NullString for performance. |
| if extended_attributes.get('TreatNullAs') != 'NullString': |
| return '' |
| if extended_attributes.get('TreatUndefinedAs') != 'NullString': |
| return 'WithNullCheck' |
| return 'WithUndefinedOrNullCheck' |
| |
| extended_attributes = extended_attributes or {} |
| idl_type = preprocess_idl_type(idl_type) |
| |
| if idl_type in CPP_TYPE_SAME_AS_IDL_TYPE: |
| return idl_type |
| if idl_type in CPP_INT_TYPES: |
| return 'int' |
| if idl_type in CPP_UNSIGNED_TYPES: |
| return 'unsigned' |
| if idl_type in CPP_SPECIAL_CONVERSION_RULES: |
| return CPP_SPECIAL_CONVERSION_RULES[idl_type] |
| if (idl_type in NON_WRAPPER_TYPES or |
| idl_type == 'XPathNSResolver'): # FIXME: eliminate this special case |
| return 'RefPtr<%s>' % idl_type |
| if idl_type == 'DOMString': |
| if not used_as_argument: |
| return 'String' |
| return 'V8StringResource<%s>' % string_mode() |
| if is_union_type(idl_type): |
| raise Exception('UnionType is not supported') |
| this_array_or_sequence_type = array_or_sequence_type(idl_type) |
| if this_array_or_sequence_type: |
| return cpp_template_type('Vector', cpp_type(this_array_or_sequence_type)) |
| |
| if is_typed_array_type and used_as_argument: |
| return idl_type + '*' |
| if is_interface_type(idl_type) and not used_as_argument: |
| return cpp_template_type('RefPtr', idl_type) |
| # Default, assume native type is a pointer with same type name as idl type |
| return idl_type + '*' |
| |
| |
| def cpp_template_type(template, inner_type): |
| """Returns C++ template specialized to type, with space added if needed.""" |
| if inner_type.endswith('>'): |
| format_string = '{template}<{inner_type} >' |
| else: |
| format_string = '{template}<{inner_type}>' |
| return format_string.format(template=template, inner_type=inner_type) |
| |
| |
| def v8_type(interface_type): |
| return 'V8' + interface_type |
| |
| |
| ################################################################################ |
| # Includes |
| ################################################################################ |
| |
| |
| def includes_for_cpp_class(class_name, relative_dir_posix): |
| return set([posixpath.join('bindings', relative_dir_posix, class_name + '.h')]) |
| |
| |
| INCLUDES_FOR_TYPE = { |
| 'any': set(['bindings/v8/ScriptValue.h']), |
| 'object': set(), |
| 'Dictionary': set(['bindings/v8/Dictionary.h']), |
| 'EventHandler': set(['bindings/v8/V8AbstractEventListener.h', |
| 'bindings/v8/V8EventListenerList.h']), |
| 'EventListener': set(['bindings/v8/BindingSecurity.h', |
| 'bindings/v8/V8EventListenerList.h', |
| 'core/frame/DOMWindow.h']), |
| 'MediaQueryListListener': set(['core/css/MediaQueryListListener.h']), |
| 'Promise': set(['bindings/v8/ScriptPromise.h']), |
| 'SerializedScriptValue': set(['bindings/v8/SerializedScriptValue.h']), |
| } |
| |
| def includes_for_type(idl_type): |
| if idl_type in INCLUDES_FOR_TYPE: |
| return INCLUDES_FOR_TYPE[idl_type] |
| if is_basic_type(idl_type) or is_enum_type(idl_type): |
| return set() |
| if is_typed_array_type(idl_type): |
| return set(['bindings/v8/custom/V8%sCustom.h' % idl_type]) |
| this_array_or_sequence_type = array_or_sequence_type(idl_type) |
| if this_array_or_sequence_type: |
| return includes_for_type(this_array_or_sequence_type) |
| if idl_type.endswith('Constructor'): |
| idl_type = constructor_type(idl_type) |
| return set(['V8%s.h' % idl_type]) |
| |
| |
| def add_includes_for_type(idl_type): |
| includes.update(includes_for_type(idl_type)) |
| |
| |
| ################################################################################ |
| # V8 -> C++ |
| ################################################################################ |
| |
| V8_VALUE_TO_CPP_VALUE = { |
| # Basic |
| 'Date': 'toWebCoreDate({v8_value})', |
| 'DOMString': '{v8_value}', |
| 'boolean': '{v8_value}->BooleanValue()', |
| 'float': 'static_cast<float>({v8_value}->NumberValue())', |
| 'double': 'static_cast<double>({v8_value}->NumberValue())', |
| 'byte': 'toInt8({arguments})', |
| 'octet': 'toUInt8({arguments})', |
| 'short': 'toInt16({arguments})', |
| 'unsigned short': 'toUInt16({arguments})', |
| 'long': 'toInt32({arguments})', |
| 'unsigned long': 'toUInt32({arguments})', |
| 'long long': 'toInt64({arguments})', |
| 'unsigned long long': 'toUInt64({arguments})', |
| # Interface types |
| 'any': 'ScriptValue({v8_value}, info.GetIsolate())', |
| 'CompareHow': 'static_cast<Range::CompareHow>({v8_value}->Int32Value())', |
| 'Dictionary': 'Dictionary({v8_value}, info.GetIsolate())', |
| 'MediaQueryListListener': 'MediaQueryListListener::create(ScriptValue({v8_value}, info.GetIsolate()))', |
| 'NodeFilter': 'toNodeFilter({v8_value}, info.GetIsolate())', |
| 'Promise': 'ScriptPromise({v8_value})', |
| 'SerializedScriptValue': 'SerializedScriptValue::create({v8_value}, info.GetIsolate())', |
| 'XPathNSResolver': 'toXPathNSResolver({v8_value}, info.GetIsolate())', |
| } |
| |
| |
| def v8_value_to_cpp_value(idl_type, extended_attributes, v8_value, index): |
| this_array_or_sequence_type = array_or_sequence_type(idl_type) |
| if this_array_or_sequence_type: |
| return v8_value_to_cpp_value_array_or_sequence(this_array_or_sequence_type, v8_value, index) |
| |
| idl_type = preprocess_idl_type(idl_type) |
| add_includes_for_type(idl_type) |
| |
| if 'EnforceRange' in extended_attributes: |
| arguments = ', '.join([v8_value, 'EnforceRange', 'ok']) |
| else: # NormalConversion |
| arguments = v8_value |
| |
| if idl_type in V8_VALUE_TO_CPP_VALUE: |
| cpp_expression_format = V8_VALUE_TO_CPP_VALUE[idl_type] |
| elif is_typed_array_type(idl_type): |
| cpp_expression_format = ( |
| '{v8_value}->Is{idl_type}() ? ' |
| 'V8{idl_type}::toNative(v8::Handle<v8::{idl_type}>::Cast({v8_value})) : 0') |
| else: |
| cpp_expression_format = ( |
| 'V8{idl_type}::hasInstance({v8_value}, info.GetIsolate(), worldType(info.GetIsolate())) ? ' |
| 'V8{idl_type}::toNative(v8::Handle<v8::Object>::Cast({v8_value})) : 0') |
| |
| return cpp_expression_format.format(arguments=arguments, idl_type=idl_type, v8_value=v8_value) |
| |
| |
| def v8_value_to_cpp_value_array_or_sequence(this_array_or_sequence_type, v8_value, index): |
| # Index is None for setters, index (starting at 0) for method arguments, |
| # and is used to provide a human-readable exception message |
| if index is None: |
| index = 0 # special case, meaning "setter" |
| else: |
| index += 1 # human-readable index |
| if (is_interface_type(this_array_or_sequence_type) and |
| this_array_or_sequence_type != 'Dictionary'): |
| this_cpp_type = None |
| expression_format = '(toRefPtrNativeArray<{array_or_sequence_type}, V8{array_or_sequence_type}>({v8_value}, {index}, info.GetIsolate()))' |
| add_includes_for_type(this_array_or_sequence_type) |
| else: |
| this_cpp_type = cpp_type(this_array_or_sequence_type) |
| expression_format = 'toNativeArray<{cpp_type}>({v8_value}, {index}, info.GetIsolate())' |
| expression = expression_format.format(array_or_sequence_type=this_array_or_sequence_type, cpp_type=this_cpp_type, index=index, v8_value=v8_value) |
| return expression |
| |
| |
| def v8_value_to_local_cpp_value(idl_type, extended_attributes, v8_value, variable_name, index=None): |
| """Returns an expression that converts a V8 value to a C++ value and stores it as a local value.""" |
| this_cpp_type = cpp_type(idl_type, extended_attributes=extended_attributes, used_as_argument=True) |
| |
| idl_type = preprocess_idl_type(idl_type) |
| if idl_type == 'DOMString': |
| format_string = 'V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID({cpp_type}, {variable_name}, {cpp_value})' |
| elif 'EnforceRange' in extended_attributes: |
| format_string = 'V8TRYCATCH_WITH_TYPECHECK_VOID({cpp_type}, {variable_name}, {cpp_value}, info.GetIsolate())' |
| else: |
| format_string = 'V8TRYCATCH_VOID({cpp_type}, {variable_name}, {cpp_value})' |
| |
| cpp_value = v8_value_to_cpp_value(idl_type, extended_attributes, v8_value, index) |
| return format_string.format(cpp_type=this_cpp_type, cpp_value=cpp_value, variable_name=variable_name) |
| |
| |
| ################################################################################ |
| # C++ -> V8 |
| ################################################################################ |
| |
| |
| def preprocess_idl_type(idl_type): |
| if is_enum_type(idl_type): |
| # Enumerations are internally DOMStrings |
| return 'DOMString' |
| if is_callback_function_type(idl_type): |
| return 'ScriptValue' |
| return idl_type |
| |
| |
| def preprocess_idl_type_and_value(idl_type, cpp_value, extended_attributes): |
| """Returns IDL type and value, with preliminary type conversions applied.""" |
| idl_type = preprocess_idl_type(idl_type) |
| if idl_type in ['Promise', 'any']: |
| idl_type = 'ScriptValue' |
| if idl_type in ['long long', 'unsigned long long']: |
| # long long and unsigned long long are not representable in ECMAScript; |
| # we represent them as doubles. |
| idl_type = 'double' |
| cpp_value = 'static_cast<double>(%s)' % cpp_value |
| # HTML5 says that unsigned reflected attributes should be in the range |
| # [0, 2^31). When a value isn't in this range, a default value (or 0) |
| # should be returned instead. |
| extended_attributes = extended_attributes or {} |
| if ('Reflect' in extended_attributes and |
| idl_type in ['unsigned long', 'unsigned short']): |
| cpp_value = cpp_value.replace('getUnsignedIntegralAttribute', |
| 'getIntegralAttribute') |
| cpp_value = 'std::max(0, %s)' % cpp_value |
| return idl_type, cpp_value |
| |
| |
| def v8_conversion_type(idl_type, extended_attributes): |
| """Returns V8 conversion type, adding any additional includes. |
| |
| The V8 conversion type is used to select the C++ -> V8 conversion function |
| or v8SetReturnValue* function; it can be an idl_type, a cpp_type, or a |
| separate name for the type of conversion (e.g., 'DOMWrapper'). |
| """ |
| extended_attributes = extended_attributes or {} |
| # Basic types, without additional includes |
| if idl_type in CPP_INT_TYPES: |
| return 'int' |
| if idl_type in CPP_UNSIGNED_TYPES: |
| return 'unsigned' |
| if idl_type == 'DOMString': |
| if 'TreatReturnedNullStringAs' not in extended_attributes: |
| return 'DOMString' |
| treat_returned_null_string_as = extended_attributes['TreatReturnedNullStringAs'] |
| if treat_returned_null_string_as == 'Null': |
| return 'StringOrNull' |
| if treat_returned_null_string_as == 'Undefined': |
| return 'StringOrUndefined' |
| raise 'Unrecognized TreatReturnNullStringAs value: "%s"' % treat_returned_null_string_as |
| if is_basic_type(idl_type) or idl_type == 'ScriptValue': |
| return idl_type |
| |
| # Data type with potential additional includes |
| this_array_or_sequence_type = array_or_sequence_type(idl_type) |
| if this_array_or_sequence_type: |
| if is_interface_type(this_array_or_sequence_type): |
| add_includes_for_type(this_array_or_sequence_type) |
| return 'array' |
| |
| add_includes_for_type(idl_type) |
| if idl_type in V8_SET_RETURN_VALUE: # Special v8SetReturnValue treatment |
| return idl_type |
| |
| # Pointer type |
| includes.add('wtf/GetPtr.h') # FIXME: remove if can eliminate WTF::getPtr |
| includes.add('wtf/RefPtr.h') |
| return 'DOMWrapper' |
| |
| |
| V8_SET_RETURN_VALUE = { |
| 'boolean': 'v8SetReturnValueBool(info, {cpp_value})', |
| 'int': 'v8SetReturnValueInt(info, {cpp_value})', |
| 'unsigned': 'v8SetReturnValueUnsigned(info, {cpp_value})', |
| 'DOMString': 'v8SetReturnValueString(info, {cpp_value}, info.GetIsolate())', |
| # [TreatNullReturnValueAs] |
| 'StringOrNull': 'v8SetReturnValueStringOrNull(info, {cpp_value}, info.GetIsolate())', |
| 'StringOrUndefined': 'v8SetReturnValueStringOrUndefined(info, {cpp_value}, info.GetIsolate())', |
| 'void': '', |
| # No special v8SetReturnValue* function (set value directly) |
| 'float': 'v8SetReturnValue(info, {cpp_value})', |
| 'double': 'v8SetReturnValue(info, {cpp_value})', |
| # No special v8SetReturnValue* function, but instead convert value to V8 |
| # and then use general v8SetReturnValue. |
| 'array': 'v8SetReturnValue(info, {cpp_value})', |
| 'Date': 'v8SetReturnValue(info, {cpp_value})', |
| 'EventHandler': 'v8SetReturnValue(info, {cpp_value})', |
| 'ScriptValue': 'v8SetReturnValue(info, {cpp_value})', |
| 'SerializedScriptValue': 'v8SetReturnValue(info, {cpp_value})', |
| # DOMWrapper |
| 'DOMWrapperFast': 'v8SetReturnValueFast(info, {cpp_value}, {script_wrappable})', |
| 'DOMWrapperDefault': 'v8SetReturnValue(info, {cpp_value})', |
| } |
| |
| |
| def v8_set_return_value(idl_type, cpp_value, extended_attributes=None, script_wrappable=''): |
| """Returns a statement that converts a C++ value to a V8 value and sets it as a return value.""" |
| def dom_wrapper_conversion_type(): |
| if not script_wrappable: |
| return 'DOMWrapperDefault' |
| return 'DOMWrapperFast' |
| |
| idl_type, cpp_value = preprocess_idl_type_and_value(idl_type, cpp_value, extended_attributes) |
| this_v8_conversion_type = v8_conversion_type(idl_type, extended_attributes) |
| # SetReturn-specific overrides |
| if this_v8_conversion_type in ['Date', 'EventHandler', 'ScriptValue', 'SerializedScriptValue', 'array']: |
| # Convert value to V8 and then use general v8SetReturnValue |
| cpp_value = cpp_value_to_v8_value(idl_type, cpp_value, extended_attributes=extended_attributes) |
| if this_v8_conversion_type == 'DOMWrapper': |
| this_v8_conversion_type = dom_wrapper_conversion_type() |
| |
| format_string = V8_SET_RETURN_VALUE[this_v8_conversion_type] |
| statement = format_string.format(cpp_value=cpp_value, script_wrappable=script_wrappable) |
| return statement |
| |
| |
| CPP_VALUE_TO_V8_VALUE = { |
| # Built-in types |
| 'Date': 'v8DateOrNull({cpp_value}, {isolate})', |
| 'DOMString': 'v8String({isolate}, {cpp_value})', |
| 'boolean': 'v8Boolean({cpp_value}, {isolate})', |
| 'int': 'v8::Integer::New({isolate}, {cpp_value})', |
| 'unsigned': 'v8::Integer::NewFromUnsigned({isolate}, {cpp_value})', |
| 'float': 'v8::Number::New({isolate}, {cpp_value})', |
| 'double': 'v8::Number::New({isolate}, {cpp_value})', |
| 'void': 'v8Undefined()', |
| # Special cases |
| 'EventHandler': '{cpp_value} ? v8::Handle<v8::Value>(V8AbstractEventListener::cast({cpp_value})->getListenerObject(imp->executionContext())) : v8::Handle<v8::Value>(v8::Null({isolate}))', |
| 'ScriptValue': '{cpp_value}.v8Value()', |
| 'SerializedScriptValue': '{cpp_value} ? {cpp_value}->deserialize() : v8::Handle<v8::Value>(v8::Null({isolate}))', |
| # General |
| 'array': 'v8Array({cpp_value}, {isolate})', |
| 'DOMWrapper': 'toV8({cpp_value}, {creation_context}, {isolate})', |
| } |
| |
| |
| def cpp_value_to_v8_value(idl_type, cpp_value, isolate='info.GetIsolate()', creation_context='', extended_attributes=None): |
| """Returns an expression that converts a C++ value to a V8 value.""" |
| # the isolate parameter is needed for callback interfaces |
| idl_type, cpp_value = preprocess_idl_type_and_value(idl_type, cpp_value, extended_attributes) |
| this_v8_conversion_type = v8_conversion_type(idl_type, extended_attributes) |
| format_string = CPP_VALUE_TO_V8_VALUE[this_v8_conversion_type] |
| statement = format_string.format(cpp_value=cpp_value, isolate=isolate, creation_context=creation_context) |
| return statement |