Remove unused V8 integration code in Sky

sky/engine/bindings/scripts/generate_global_constructors.py

Index: sky/engine/bindings/scripts/generate_global_constructors.py
diff --git a/sky/engine/bindings/scripts/generate_global_constructors.py b/sky/engine/bindings/scripts/generate_global_constructors.py
deleted file mode 100755
index 2e50a61cf6fb194ca95ef96d500f4eb1efee0796..0000000000000000000000000000000000000000
--- a/sky/engine/bindings/scripts/generate_global_constructors.py
+++ /dev/null
@@ -1,182 +0,0 @@
-#!/usr/bin/python
-#
-# 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.
-
-"""Generates interface properties on global objects.
-
-Concretely these are implemented as "constructor attributes", meaning
-"attributes whose name ends with Constructor" (special-cased by code generator),
-hence "global constructors" for short.
-
-For reference on global objects, see:
-http://heycam.github.io/webidl/#Global
-http://heycam.github.io/webidl/#Exposed
-
-Design document: http://www.chromium.org/developers/design-documents/idl-build
-"""
-
-import itertools
-import optparse
-import os
-import cPickle as pickle
-import re
-import sys
-
-from collections import defaultdict
-from utilities import get_file_contents, idl_filename_to_interface_name, read_file_to_list, write_file, get_interface_extended_attributes_from_idl, is_callback_interface_from_idl
-
-interface_name_to_global_names = {}
-global_name_to_constructors = defaultdict(list)
-
-
-HEADER_FORMAT = """// Stub header file for {{idl_basename}}
-// Required because the IDL compiler assumes that a corresponding header file
-// exists for each IDL file.
-"""
-
-def parse_options():
-    parser = optparse.OptionParser()
-    parser.add_option('--idl-files-list', help='file listing IDL files')
-    parser.add_option('--global-objects-file', help='pickle file of global objects')
-    parser.add_option('--write-file-only-if-changed', type='int', help='if true, do not write an output file if it would be identical to the existing one, which avoids unnecessary rebuilds in ninja')
-
-    options, args = parser.parse_args()
-
-    if options.idl_files_list is None:
-        parser.error('Must specify a file listing IDL files using --idl-files-list.')
-    if options.global_objects_file is None:
-        parser.error('Must specify a pickle file of global objects using --global-objects-file.')
-    if options.write_file_only_if_changed is None:
-        parser.error('Must specify whether output files are only written if changed using --write-file-only-if-changed.')
-    options.write_file_only_if_changed = bool(options.write_file_only_if_changed)
-
-    return options, args
-
-
-def flatten_list(iterable):
-    return list(itertools.chain.from_iterable(iterable))
-
-
-def interface_name_to_constructors(interface_name):
-    """Returns constructors for an interface."""
-    global_names = interface_name_to_global_names[interface_name]
-    return flatten_list(global_name_to_constructors[global_name]
-                        for global_name in global_names)
-
-
-def record_global_constructors(idl_filename):
-    interface_name = idl_filename_to_interface_name(idl_filename)
-    full_path = os.path.realpath(idl_filename)
-    idl_file_contents = get_file_contents(full_path)
-    extended_attributes = get_interface_extended_attributes_from_idl(idl_file_contents)
-
-    # An interface property is produced for every non-callback interface
-    # that does not have [NoInterfaceObject].
-    # Callback interfaces with constants also have interface properties,
-    # but there are none of these in Blink.
-    # http://heycam.github.io/webidl/#es-interfaces
-    if (is_callback_interface_from_idl(idl_file_contents) or
-        'NoInterfaceObject' in extended_attributes):
-        return
-
-    # The [Exposed] extended attribute MUST take an identifier list. Each
-    # identifier in the list MUST be a global name. An interface or interface
-    # member the extended attribute applies to will be exposed only on objects
-    # associated with ECMAScript global environments whose global object
-    # implements an interface that has a matching global name.
-    exposed_global_names = extended_attributes.get('Exposed', 'Window').strip('()').split(',')
-    new_constructors_list = generate_global_constructors_list(interface_name, extended_attributes)
-    for exposed_global_name in exposed_global_names:
-        global_name_to_constructors[exposed_global_name].extend(new_constructors_list)
-
-
-def generate_global_constructors_list(interface_name, extended_attributes):
-    extended_attributes_list = [
-            name + '=' + extended_attributes[name]
-            for name in 'Conditional', 'RuntimeEnabled'
-            if name in extended_attributes]
-    if extended_attributes_list:
-        extended_string = '[%s] ' % ', '.join(extended_attributes_list)
-    else:
-        extended_string = ''
-
-    attribute_string = 'attribute {interface_name}Constructor {interface_name}'.format(interface_name=interface_name)
-    attributes_list = [extended_string + attribute_string]
-
-    # In addition to the usual interface property, for every [NamedConstructor]
-    # extended attribute on an interface, a corresponding property MUST exist
-    # on the ECMAScript global object.
-    # http://heycam.github.io/webidl/#NamedConstructor
-    if 'NamedConstructor' in extended_attributes:
-        named_constructor = extended_attributes['NamedConstructor']
-        # Extract function name, namely everything before opening '('
-        constructor_name = re.sub(r'\(.*', '', named_constructor)
-        # Note the reduplicated 'ConstructorConstructor'
-        # FIXME: rename to NamedConstructor
-        attribute_string = 'attribute %sConstructorConstructor %s' % (interface_name, constructor_name)
-        attributes_list.append(extended_string + attribute_string)
-
-    return attributes_list
-
-
-def write_global_constructors_partial_interface(interface_name, idl_filename, constructor_attributes_list, only_if_changed):
-    # FIXME: replace this with a simple Jinja template
-    lines = (['partial interface %s {\n' % interface_name] +
-             ['    %s;\n' % constructor_attribute
-              # FIXME: sort by interface name (not first by extended attributes)
-              for constructor_attribute in sorted(constructor_attributes_list)] +
-             ['};\n'])
-    write_file(''.join(lines), idl_filename, only_if_changed)
-    header_filename = os.path.splitext(idl_filename)[0] + '.h'
-    idl_basename = os.path.basename(idl_filename)
-    write_file(HEADER_FORMAT.format(idl_basename=idl_basename),
-               header_filename, only_if_changed)
-
-
-################################################################################
-
-def main():
-    options, args = parse_options()
-
-    # Input IDL files are passed in a file, due to OS command line length
-    # limits. This is generated at GYP time, which is ok b/c files are static.
-    idl_files = read_file_to_list(options.idl_files_list)
-
-    # Output IDL files (to generate) are passed at the command line, since
-    # these are in the build directory, which is determined at build time, not
-    # GYP time.
-    # These are passed as pairs of GlobalObjectName, GlobalObject.idl
-    interface_name_idl_filename = [(args[i], args[i + 1])
-                                   for i in range(0, len(args), 2)]
-
-    with open(options.global_objects_file) as global_objects_file:
-        interface_name_to_global_names.update(pickle.load(global_objects_file))
-
-    for idl_filename in idl_files:
-        record_global_constructors(idl_filename)
-
-    # Check for [Exposed] / [Global] mismatch.
-    known_global_names = frozenset(itertools.chain.from_iterable(interface_name_to_global_names.values()))
-    exposed_global_names = frozenset(global_name_to_constructors)
-    if not exposed_global_names.issubset(known_global_names):
-        unknown_global_names = exposed_global_names.difference(known_global_names)
-        raise ValueError('The following global names were used in '
-                         '[Exposed=xxx] but do not match any [Global] / '
-                         '[PrimaryGlobal] interface: %s'
-                         % list(unknown_global_names))
-
-    # Write partial interfaces containing constructor attributes for each
-    # global interface.
-    for interface_name, idl_filename in interface_name_idl_filename:
-        constructors = interface_name_to_constructors(interface_name)
-        write_global_constructors_partial_interface(
-            interface_name,
-            idl_filename,
-            constructors,
-            options.write_file_only_if_changed)
-
-
-if __name__ == '__main__':
-    sys.exit(main())