| Index: sky/engine/bindings2/scripts/utilities.py
|
| diff --git a/sky/engine/bindings2/scripts/utilities.py b/sky/engine/bindings2/scripts/utilities.py
|
| deleted file mode 100644
|
| index 8e7745cd28cfc5afb28c00c10c371444340a83fa..0000000000000000000000000000000000000000
|
| --- a/sky/engine/bindings2/scripts/utilities.py
|
| +++ /dev/null
|
| @@ -1,188 +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.
|
| -
|
| -"""Utility functions (file reading, simple IDL parsing by regexes) for IDL build.
|
| -
|
| -Design doc: http://www.chromium.org/developers/design-documents/idl-build
|
| -"""
|
| -
|
| -import os
|
| -import cPickle as pickle
|
| -import re
|
| -import string
|
| -import subprocess
|
| -
|
| -
|
| -class IdlBadFilenameError(Exception):
|
| - """Raised if an IDL filename disagrees with the interface name in the file."""
|
| - pass
|
| -
|
| -
|
| -def idl_filename_to_interface_name(idl_filename):
|
| - # interface name is the root of the basename: InterfaceName.idl
|
| - return os.path.splitext(os.path.basename(idl_filename))[0]
|
| -
|
| -
|
| -################################################################################
|
| -# Basic file reading/writing
|
| -################################################################################
|
| -
|
| -def get_file_contents(filename):
|
| - with open(filename) as f:
|
| - return f.read()
|
| -
|
| -
|
| -def read_file_to_list(filename):
|
| - """Returns a list of (stripped) lines for a given filename."""
|
| - with open(filename) as f:
|
| - return [line.rstrip('\n') for line in f]
|
| -
|
| -
|
| -def read_idl_files_list_from_file(filename):
|
| - """Similar to read_file_to_list, but also resolves cygpath."""
|
| - with open(filename) as input_file:
|
| - file_names = sorted([os.path.realpath(line.rstrip('\n'))
|
| - for line in input_file])
|
| - idl_file_names = [file_name for file_name in file_names
|
| - if not file_name.startswith('/cygdrive')]
|
| - cygdrive_names = [file_name for file_name in file_names
|
| - if file_name.startswith('/cygdrive')]
|
| - idl_file_names.extend(resolve_cygpath(cygdrive_names))
|
| - return idl_file_names
|
| -
|
| -
|
| -def read_pickle_files(pickle_filenames):
|
| - for pickle_filename in pickle_filenames:
|
| - with open(pickle_filename) as pickle_file:
|
| - yield pickle.load(pickle_file)
|
| -
|
| -
|
| -def write_file(new_text, destination_filename, only_if_changed):
|
| - if only_if_changed and os.path.isfile(destination_filename):
|
| - with open(destination_filename) as destination_file:
|
| - if destination_file.read() == new_text:
|
| - return
|
| - destination_dirname = os.path.dirname(destination_filename)
|
| - if not os.path.exists(destination_dirname):
|
| - os.makedirs(destination_dirname)
|
| - with open(destination_filename, 'w') as destination_file:
|
| - destination_file.write(new_text)
|
| -
|
| -
|
| -def write_pickle_file(pickle_filename, data, only_if_changed):
|
| - if only_if_changed and os.path.isfile(pickle_filename):
|
| - with open(pickle_filename) as pickle_file:
|
| - try:
|
| - if pickle.load(pickle_file) == data:
|
| - return
|
| - except (EOFError, pickle.UnpicklingError):
|
| - # If trouble unpickling, overwrite
|
| - pass
|
| - with open(pickle_filename, 'w') as pickle_file:
|
| - pickle.dump(data, pickle_file)
|
| -
|
| -
|
| -################################################################################
|
| -# IDL parsing
|
| -#
|
| -# We use regular expressions for parsing; this is incorrect (Web IDL is not a
|
| -# regular language), but simple and sufficient in practice.
|
| -# Leading and trailing context (e.g. following '{') used to avoid false matches.
|
| -################################################################################
|
| -
|
| -def get_partial_interface_name_from_idl(file_contents):
|
| - match = re.search(r'partial\s+interface\s+(\w+)\s*{', file_contents)
|
| - return match and match.group(1)
|
| -
|
| -
|
| -def get_implements_from_idl(file_contents, interface_name):
|
| - """Returns lists of implementing and implemented interfaces.
|
| -
|
| - Rule is: identifier-A implements identifier-B;
|
| - i.e., implement*ing* implements implement*ed*;
|
| - http://www.w3.org/TR/WebIDL/#idl-implements-statements
|
| -
|
| - Returns two lists of interfaces: identifier-As and identifier-Bs.
|
| - An 'implements' statements can be present in the IDL file for either the
|
| - implementing or the implemented interface, but not other files.
|
| - """
|
| - implements_re = (r'^\s*'
|
| - r'(\w+)\s+'
|
| - r'implements\s+'
|
| - r'(\w+)\s*'
|
| - r';')
|
| - implements_matches = re.finditer(implements_re, file_contents, re.MULTILINE)
|
| - implements_pairs = [match.groups() for match in implements_matches]
|
| -
|
| - foreign_implements = [pair for pair in implements_pairs
|
| - if interface_name not in pair]
|
| - if foreign_implements:
|
| - left, right = foreign_implements.pop()
|
| - raise IdlBadFilenameError(
|
| - 'implements statement found in unrelated IDL file.\n'
|
| - 'Statement is:\n'
|
| - ' %s implements %s;\n'
|
| - 'but filename is unrelated "%s.idl"' %
|
| - (left, right, interface_name))
|
| -
|
| - return (
|
| - [left for left, right in implements_pairs if right == interface_name],
|
| - [right for left, right in implements_pairs if left == interface_name])
|
| -
|
| -
|
| -def is_callback_interface_from_idl(file_contents):
|
| - match = re.search(r'callback\s+interface\s+\w+\s*{', file_contents)
|
| - return bool(match)
|
| -
|
| -
|
| -def get_parent_interface(file_contents):
|
| - match = re.search(r'interface\s+'
|
| - r'\w+\s*'
|
| - r':\s*(\w+)\s*'
|
| - r'{',
|
| - file_contents)
|
| - return match and match.group(1)
|
| -
|
| -
|
| -def get_interface_extended_attributes_from_idl(file_contents):
|
| - # Strip comments
|
| - # re.compile needed b/c Python 2.6 doesn't support flags in re.sub
|
| - single_line_comment_re = re.compile(r'//.*$', flags=re.MULTILINE)
|
| - block_comment_re = re.compile(r'/\*.*?\*/', flags=re.MULTILINE | re.DOTALL)
|
| - file_contents = re.sub(single_line_comment_re, '', file_contents)
|
| - file_contents = re.sub(block_comment_re, '', file_contents)
|
| -
|
| - match = re.search(r'\[(.*)\]\s*'
|
| - r'((callback|partial)\s+)?'
|
| - r'(interface|exception)\s+'
|
| - r'\w+\s*'
|
| - r'(:\s*\w+\s*)?'
|
| - r'{',
|
| - file_contents, flags=re.DOTALL)
|
| - if not match:
|
| - return {}
|
| -
|
| - extended_attributes_string = match.group(1)
|
| - extended_attributes = {}
|
| - # FIXME: this splitting is WRONG: it fails on extended attributes where lists of
|
| - # multiple values are used, which are seperated by a comma and a space.
|
| - parts = [extended_attribute.strip()
|
| - for extended_attribute in re.split(',\s+', extended_attributes_string)
|
| - # Discard empty parts, which may exist due to trailing comma
|
| - if extended_attribute.strip()]
|
| - for part in parts:
|
| - name, _, value = map(string.strip, part.partition('='))
|
| - extended_attributes[name] = value
|
| - return extended_attributes
|
| -
|
| -
|
| -def get_put_forward_interfaces_from_idl(file_contents):
|
| - put_forwards_pattern = (r'\[[^\]]*PutForwards=[^\]]*\]\s+'
|
| - r'readonly\s+'
|
| - r'attribute\s+'
|
| - r'(\w+)')
|
| - return sorted(set(match.group(1)
|
| - for match in re.finditer(put_forwards_pattern,
|
| - file_contents,
|
| - flags=re.DOTALL)))
|
|
|