Remove unused V8 integration code in Sky

sky/engine/bindings/scripts/idl_types.py

Index: sky/engine/bindings/scripts/idl_types.py
diff --git a/sky/engine/bindings/scripts/idl_types.py b/sky/engine/bindings/scripts/idl_types.py
deleted file mode 100644
index 1b22eb6772ce83ce789a28946923bffb917392f7..0000000000000000000000000000000000000000
--- a/sky/engine/bindings/scripts/idl_types.py
+++ /dev/null
@@ -1,338 +0,0 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-"""IDL type handling.
-
-Classes:
-IdlTypeBase
- IdlType
- IdlUnionType
- IdlArrayOrSequenceType
-  IdlArrayType
-  IdlSequenceType
- IdlNullableType
-"""
-
-from collections import defaultdict
-
-
-################################################################################
-# IDL types
-################################################################################
-
-INTEGER_TYPES = frozenset([
-    # 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',
-])
-NUMERIC_TYPES = (INTEGER_TYPES | frozenset([
-    # http://www.w3.org/TR/WebIDL/#dfn-numeric-type
-    'float',
-    'unrestricted float',
-    'double',
-    'unrestricted double',
-]))
-# http://www.w3.org/TR/WebIDL/#dfn-primitive-type
-PRIMITIVE_TYPES = (frozenset(['boolean']) | NUMERIC_TYPES)
-BASIC_TYPES = (PRIMITIVE_TYPES | frozenset([
-    # Built-in, non-composite, non-object data types
-    # http://heycam.github.io/webidl/#idl-types
-    'DOMString',
-    'ByteString',
-    'Date',
-    # http://heycam.github.io/webidl/#es-type-mapping
-    'void',
-    # http://encoding.spec.whatwg.org/#type-scalarvaluestring
-    'ScalarValueString',
-]))
-TYPE_NAMES = {
-    # http://heycam.github.io/webidl/#dfn-type-name
-    'any': 'Any',
-    'boolean': 'Boolean',
-    'byte': 'Byte',
-    'octet': 'Octet',
-    'short': 'Short',
-    'unsigned short': 'UnsignedShort',
-    'long': 'Long',
-    'unsigned long': 'UnsignedLong',
-    'long long': 'LongLong',
-    'unsigned long long': 'UnsignedLongLong',
-    'float': 'Float',
-    'unrestricted float': 'UnrestrictedFloat',
-    'double': 'Double',
-    'unrestricted double': 'UnrestrictedDouble',
-    'DOMString': 'String',
-    'ByteString': 'ByteString',
-    'ScalarValueString': 'ScalarValueString',
-    'object': 'Object',
-    'Date': 'Date',
-}
-
-STRING_TYPES = frozenset([
-    # http://heycam.github.io/webidl/#es-interface-call (step 10.11)
-    # (Interface object [[Call]] method's string types.)
-    'String',
-    'ByteString',
-    'ScalarValueString',
-])
-
-
-################################################################################
-# Inheritance
-################################################################################
-
-ancestors = defaultdict(list)  # interface_name -> ancestors
-
-def inherits_interface(interface_name, ancestor_name):
-    return (interface_name == ancestor_name or
-            ancestor_name in ancestors[interface_name])
-
-
-def set_ancestors(new_ancestors):
-    ancestors.update(new_ancestors)
-
-
-class IdlTypeBase(object):
-    """Base class for IdlType, IdlUnionType, IdlArrayOrSequenceType and IdlNullableType."""
-
-    def __str__(self):
-        raise NotImplementedError(
-            '__str__() should be defined in subclasses')
-
-    def __getattr__(self, name):
-        # Default undefined attributes to None (analogous to Jinja variables).
-        # This allows us to not define default properties in the base class, and
-        # allows us to relay __getattr__ in IdlNullableType to the inner type.
-        return None
-
-    def resolve_typedefs(self, typedefs):
-        raise NotImplementedError(
-            'resolve_typedefs should be defined in subclasses')
-
-
-################################################################################
-# IdlType
-################################################################################
-
-class IdlType(IdlTypeBase):
-    # FIXME: incorporate Nullable, etc.
-    # to support types like short?[] vs. short[]?, instead of treating these
-    # as orthogonal properties (via flags).
-    callback_functions = set()
-    callback_interfaces = set()
-    dictionaries = set()
-    enums = {}  # name -> values
-
-    def __init__(self, base_type, is_unrestricted=False):
-        super(IdlType, self).__init__()
-        if is_unrestricted:
-            self.base_type = 'unrestricted %s' % base_type
-        else:
-            self.base_type = base_type
-
-    def __str__(self):
-        return self.base_type
-
-    @property
-    def is_basic_type(self):
-        return self.base_type in BASIC_TYPES
-
-    @property
-    def is_callback_function(self):
-        return self.base_type in IdlType.callback_functions
-
-    @property
-    def is_callback_interface(self):
-        return self.base_type in IdlType.callback_interfaces
-
-    @property
-    def is_dictionary(self):
-        return self.base_type in IdlType.dictionaries
-
-    @property
-    def is_enum(self):
-        # FIXME: add an IdlEnumType class and a resolve_enums step at end of
-        # IdlDefinitions constructor
-        return self.name in IdlType.enums
-
-    @property
-    def enum_values(self):
-        return IdlType.enums[self.name]
-
-    @property
-    def is_integer_type(self):
-        return self.base_type in INTEGER_TYPES
-
-    @property
-    def is_numeric_type(self):
-        return self.base_type in NUMERIC_TYPES
-
-    @property
-    def is_primitive_type(self):
-        return self.base_type in PRIMITIVE_TYPES
-
-    @property
-    def is_interface_type(self):
-        # 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(self.is_basic_type or
-                   self.is_callback_function or
-                   self.is_dictionary or
-                   self.is_enum or
-                   self.name == 'Any' or
-                   self.name == 'Object' or
-                   self.name == 'Promise')  # Promise will be basic in future
-
-    @property
-    def is_string_type(self):
-        return self.name in STRING_TYPES
-
-    @property
-    def may_raise_exception_on_conversion(self):
-        return (self.is_integer_type or
-                self.name in ('ByteString', 'ScalarValueString'))
-
-    @property
-    def is_union_type(self):
-        return isinstance(self, IdlUnionType)
-
-    @property
-    def name(self):
-        """Return type name
-
-        http://heycam.github.io/webidl/#dfn-type-name
-        """
-        base_type = self.base_type
-        return TYPE_NAMES.get(base_type, base_type)
-
-    @classmethod
-    def set_callback_functions(cls, new_callback_functions):
-        cls.callback_functions.update(new_callback_functions)
-
-    @classmethod
-    def set_callback_interfaces(cls, new_callback_interfaces):
-        cls.callback_interfaces.update(new_callback_interfaces)
-
-    @classmethod
-    def set_dictionaries(cls, new_dictionaries):
-        cls.dictionaries.update(new_dictionaries)
-
-    @classmethod
-    def set_enums(cls, new_enums):
-        cls.enums.update(new_enums)
-
-    def resolve_typedefs(self, typedefs):
-        # This function either returns |self| or a different object.
-        # FIXME: Rename typedefs_resolved().
-        return typedefs.get(self.base_type, self)
-
-
-################################################################################
-# IdlUnionType
-################################################################################
-
-class IdlUnionType(IdlTypeBase):
-    # http://heycam.github.io/webidl/#idl-union
-    def __init__(self, member_types):
-        super(IdlUnionType, self).__init__()
-        self.member_types = member_types
-
-    @property
-    def is_union_type(self):
-        return True
-
-    @property
-    def name(self):
-        """Return type name (or inner type name if nullable)
-
-        http://heycam.github.io/webidl/#dfn-type-name
-        """
-        return 'Or'.join(member_type.name for member_type in self.member_types)
-
-    def resolve_typedefs(self, typedefs):
-        self.member_types = [
-            typedefs.get(member_type, member_type)
-            for member_type in self.member_types]
-        return self
-
-
-################################################################################
-# IdlArrayOrSequenceType, IdlArrayType, IdlSequenceType
-################################################################################
-
-class IdlArrayOrSequenceType(IdlTypeBase):
-    """Base class for IdlArrayType and IdlSequenceType."""
-
-    def __init__(self, element_type):
-        super(IdlArrayOrSequenceType, self).__init__()
-        self.element_type = element_type
-
-    def resolve_typedefs(self, typedefs):
-        self.element_type = self.element_type.resolve_typedefs(typedefs)
-        return self
-
-
-class IdlArrayType(IdlArrayOrSequenceType):
-    def __init__(self, element_type):
-        super(IdlArrayType, self).__init__(element_type)
-
-    def __str__(self):
-        return '%s[]' % self.element_type
-
-    @property
-    def name(self):
-        return self.element_type.name + 'Array'
-
-
-class IdlSequenceType(IdlArrayOrSequenceType):
-    def __init__(self, element_type):
-        super(IdlSequenceType, self).__init__(element_type)
-
-    def __str__(self):
-        return 'sequence<%s>' % self.element_type
-
-    @property
-    def name(self):
-        return self.element_type.name + 'Sequence'
-
-
-################################################################################
-# IdlNullableType
-################################################################################
-
-class IdlNullableType(IdlTypeBase):
-    def __init__(self, inner_type):
-        super(IdlNullableType, self).__init__()
-        self.inner_type = inner_type
-
-    def __str__(self):
-        # FIXME: Dictionary::ConversionContext::setConversionType can't
-        # handle the '?' in nullable types (passes nullability separately).
-        # Update that function to handle nullability from the type name,
-        # simplifying its signature.
-        # return str(self.inner_type) + '?'
-        return str(self.inner_type)
-
-    def __getattr__(self, name):
-        return getattr(self.inner_type, name)
-
-    @property
-    def is_nullable(self):
-        return True
-
-    @property
-    def name(self):
-        return self.inner_type.name + 'OrNull'
-
-    def resolve_typedefs(self, typedefs):
-        self.inner_type = self.inner_type.resolve_typedefs(typedefs)
-        return self