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Unified Diff: sky/engine/bindings2/scripts/v8_types.py

Issue 915293003: Rename sky/engine/bindings2 to sky/engine/bindings (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: more better Created 5 years, 10 months ago
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Index: sky/engine/bindings2/scripts/v8_types.py
diff --git a/sky/engine/bindings2/scripts/v8_types.py b/sky/engine/bindings2/scripts/v8_types.py
deleted file mode 100644
index cdaa15814b92475dd7c4784e7a6b12e4cca0e453..0000000000000000000000000000000000000000
--- a/sky/engine/bindings2/scripts/v8_types.py
+++ /dev/null
@@ -1,386 +0,0 @@
-# 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).
-
-Extends IdlType and IdlUnionType with V8-specific properties, methods, and
-class methods.
-
-Spec:
-http://www.w3.org/TR/WebIDL/#es-type-mapping
-
-Design doc: http://www.chromium.org/developers/design-documents/idl-compiler
-"""
-
-import posixpath
-
-from idl_types import IdlTypeBase, IdlType, IdlUnionType, IdlArrayOrSequenceType, IdlNullableType
-import v8_attributes # for IdlType.constructor_type_name
-from v8_globals import includes
-
-
-################################################################################
-# V8-specific handling of IDL types
-################################################################################
-
-NON_WRAPPER_TYPES = frozenset([
- 'CompareHow',
- 'EventHandler',
- 'EventListener',
- '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'),
-}
-
-IdlType.is_typed_array_element_type = property(
- lambda self: self.base_type in TYPED_ARRAYS)
-
-IdlType.is_wrapper_type = property(
- lambda self: (self.is_interface_type and
- self.base_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',
- 'EventHandler': 'EventListener*',
- 'Promise': 'ScriptPromise',
- 'ScriptValue': 'ScriptValue',
- 'boolean': 'bool',
- 'unrestricted double': 'double',
- 'unrestricted float': 'float',
-}
-
-
-def cpp_type_initializer(idl_type):
- """Returns a string containing a C++ initialization statement for the
- corresponding type.
-
- |idl_type| argument is of type IdlType.
- """
-
- base_idl_type = idl_type.base_type
-
- if idl_type.native_array_element_type:
- return ''
- if idl_type.is_numeric_type:
- return ' = 0'
- if base_idl_type == 'boolean':
- return ' = false'
- if (base_idl_type in NON_WRAPPER_TYPES or
- base_idl_type in CPP_SPECIAL_CONVERSION_RULES or
- base_idl_type == 'any' or
- idl_type.is_string_type or
- idl_type.is_enum):
- return ''
- return ' = nullptr'
-
-
-def cpp_type_union(idl_type, extended_attributes=None, raw_type=False):
- # FIXME: Need to revisit the design of union support.
- # http://crbug.com/240176
- return None
-
-
-def cpp_type_initializer_union(idl_type):
- return (member_type.cpp_type_initializer for member_type in idl_type.member_types)
-
-
-# Allow access as idl_type.cpp_type if no arguments
-IdlTypeBase.cpp_type_initializer = property(cpp_type_initializer)
-IdlUnionType.cpp_type = property(cpp_type_union)
-IdlUnionType.cpp_type_initializer = property(cpp_type_initializer_union)
-IdlUnionType.cpp_type_args = cpp_type_union
-
-
-IdlArrayOrSequenceType.native_array_element_type = property(
- lambda self: self.element_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)
-
-
-# [ImplementedAs]
-# This handles [ImplementedAs] on interface types, not [ImplementedAs] in the
-# interface being generated. e.g., given:
-# Foo.idl: interface Foo {attribute Bar bar};
-# Bar.idl: [ImplementedAs=Zork] interface Bar {};
-# when generating bindings for Foo, the [ImplementedAs] on Bar is needed.
-# This data is external to Foo.idl, and hence computed as global information in
-# compute_interfaces_info.py to avoid having to parse IDLs of all used interfaces.
-IdlType.implemented_as_interfaces = {}
-
-
-def implemented_as(idl_type):
- base_idl_type = idl_type.base_type
- if base_idl_type in IdlType.implemented_as_interfaces:
- return IdlType.implemented_as_interfaces[base_idl_type]
- return base_idl_type
-
-
-IdlType.implemented_as = property(implemented_as)
-
-IdlType.set_implemented_as_interfaces = classmethod(
- lambda cls, new_implemented_as_interfaces:
- cls.implemented_as_interfaces.update(new_implemented_as_interfaces))
-
-
-################################################################################
-# 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 = {
- 'object': set(),
- 'CompareHow': set(),
- 'EventHandler': set(['bindings/core/v8/V8AbstractEventListener.h',
- 'bindings/core/v8/V8EventListenerList.h']),
- 'EventListener': set(['bindings/core/v8/BindingSecurity.h',
- 'bindings/core/v8/V8EventListenerList.h',
- 'core/frame/LocalDOMWindow.h']),
- 'NodeList': set(['bindings/core/v8/V8NodeList.h',
- 'core/dom/NodeList.h',
- 'core/dom/StaticNodeList.h']),
- 'Promise': set(['bindings/core/v8/ScriptPromise.h']),
- 'SerializedScriptValue': set(['bindings/core/v8/SerializedScriptValue.h']),
- 'ScriptValue': set(['bindings/core/v8/ScriptValue.h']),
-}
-
-
-def includes_for_type(idl_type):
- idl_type = idl_type.preprocessed_type
-
- # Simple types
- base_idl_type = idl_type.base_type
- if base_idl_type in INCLUDES_FOR_TYPE:
- return INCLUDES_FOR_TYPE[base_idl_type]
- if idl_type.is_basic_type:
- return set()
- if idl_type.is_typed_array_element_type:
- return set(['bindings/core/v8/custom/V8%sCustom.h' % base_idl_type])
- if base_idl_type.endswith('ConstructorConstructor'):
- # FIXME: rename to NamedConstructor
- # FIXME: replace with a [NamedConstructorAttribute] extended attribute
- # Ending with 'ConstructorConstructor' indicates a named constructor,
- # and these do not have header files, as they are part of the generated
- # bindings for the interface
- return set()
- if base_idl_type.endswith('Constructor'):
- # FIXME: replace with a [ConstructorAttribute] extended attribute
- base_idl_type = idl_type.constructor_type_name
- if base_idl_type not in component_dir:
- return set()
- return set(['bindings/%s/v8/V8%s.h' % (component_dir[base_idl_type],
- base_idl_type)])
-
-IdlType.includes_for_type = property(includes_for_type)
-IdlUnionType.includes_for_type = property(
- lambda self: set.union(*[member_type.includes_for_type
- for member_type in self.member_types]))
-IdlArrayOrSequenceType.includes_for_type = property(
- lambda self: self.element_type.includes_for_type)
-
-
-def add_includes_for_type(idl_type):
- includes.update(idl_type.includes_for_type)
-
-IdlTypeBase.add_includes_for_type = add_includes_for_type
-
-
-def includes_for_interface(interface_name):
- return IdlType(interface_name).includes_for_type
-
-
-def add_includes_for_interface(interface_name):
- includes.update(includes_for_interface(interface_name))
-
-
-def impl_should_use_nullable_container(idl_type):
- return not(idl_type.cpp_type_has_null_value)
-
-IdlTypeBase.impl_should_use_nullable_container = property(
- impl_should_use_nullable_container)
-
-
-def impl_includes_for_type(idl_type, interfaces_info):
- includes_for_type = set()
- if idl_type.impl_should_use_nullable_container:
- includes_for_type.add('bindings2/nullable.h')
-
- idl_type = idl_type.preprocessed_type
- native_array_element_type = idl_type.native_array_element_type
- if native_array_element_type:
- includes_for_type.update(impl_includes_for_type(
- native_array_element_type, interfaces_info))
- includes_for_type.add('wtf/Vector.h')
-
- if idl_type.is_string_type:
- includes_for_type.add('wtf/text/WTFString.h')
- if idl_type.name in interfaces_info:
- interface_info = interfaces_info[idl_type.name]
- includes_for_type.add(interface_info['include_path'])
- return includes_for_type
-
-IdlTypeBase.impl_includes_for_type = impl_includes_for_type
-
-
-component_dir = {}
-
-
-def set_component_dirs(new_component_dirs):
- component_dir.update(new_component_dirs)
-
-
-################################################################################
-# C++ -> V8
-################################################################################
-
-def preprocess_idl_type(idl_type):
- if idl_type.is_enum:
- # Enumerations are internally DOMStrings
- return IdlType('DOMString')
- if (idl_type.name == 'Any' or idl_type.is_callback_function):
- return IdlType('ScriptValue')
- return idl_type
-
-IdlTypeBase.preprocessed_type = property(preprocess_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 = idl_type.preprocessed_type
- if idl_type.name == 'Promise':
- idl_type = IdlType('ScriptValue')
- if idl_type.base_type in ['long long', 'unsigned long long']:
- # long long and unsigned long long are not representable in ECMAScript;
- # we represent them as doubles.
- is_nullable = idl_type.is_nullable
- idl_type = IdlType('double')
- if is_nullable:
- idl_type = IdlNullableType(idl_type)
- 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.base_type in ['unsigned long', 'unsigned short']):
- cpp_value = cpp_value.replace('getUnsignedIntegralAttribute',
- 'getIntegralAttribute')
- cpp_value = 'std::max(0, static_cast<int>(%s))' % cpp_value
- return idl_type, cpp_value
-
-
-IdlType.release = property(lambda self: self.is_interface_type)
-IdlUnionType.release = property(
- lambda self: [member_type.is_interface_type
- for member_type in self.member_types])
-
-
-def literal_cpp_value(idl_type, idl_literal):
- """Converts an expression that is a valid C++ literal for this type."""
- # FIXME: add validation that idl_type and idl_literal are compatible
- literal_value = str(idl_literal)
- if idl_type.base_type in CPP_UNSIGNED_TYPES:
- return literal_value + 'u'
- return literal_value
-
-IdlType.literal_cpp_value = literal_cpp_value
-
-
-################################################################################
-# Utility properties for nullable types
-################################################################################
-
-
-def cpp_type_has_null_value(idl_type):
- # - String types (String/AtomicString) represent null as a null string,
- # i.e. one for which String::isNull() returns true.
- # - Wrapper types (raw pointer or RefPtr/PassRefPtr) represent null as
- # a null pointer.
- return (idl_type.is_string_type or idl_type.is_wrapper_type)
-
-IdlTypeBase.cpp_type_has_null_value = property(cpp_type_has_null_value)
-
-
-def is_implicit_nullable(idl_type):
- # Nullable type where the corresponding C++ type supports a null value.
- return idl_type.is_nullable and idl_type.cpp_type_has_null_value
-
-
-def is_explicit_nullable(idl_type):
- # Nullable type that isn't implicit nullable (see above.) For such types,
- # we use Nullable<T> or similar explicit ways to represent a null value.
- return idl_type.is_nullable and not idl_type.is_implicit_nullable
-
-IdlTypeBase.is_implicit_nullable = property(is_implicit_nullable)
-IdlUnionType.is_implicit_nullable = False
-IdlTypeBase.is_explicit_nullable = property(is_explicit_nullable)
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