mirror of https://github.com/morpheus65535/bazarr
205 lines
7.1 KiB
Python
205 lines
7.1 KiB
Python
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from __future__ import unicode_literals
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from ..conversions import *
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from ..func_utils import *
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from ..base import is_data_descriptor
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import six
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def Object(this, args):
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val = get_arg(args, 0)
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if is_null(val) or is_undefined(val):
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return args.space.NewObject()
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return to_object(val, args.space)
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def ObjectCreate(args, space):
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if len(args):
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val = get_arg(args, 0)
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if is_object(val):
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# Implementation dependent, but my will simply return :)
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return val
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elif type(val) in (NUMBER_TYPE, STRING_TYPE, BOOLEAN_TYPE):
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return to_object(val, space)
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return space.NewObject()
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class ObjectMethods:
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def getPrototypeOf(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Object.getPrototypeOf called on non-object')
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return null if obj.prototype is None else obj.prototype
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def getOwnPropertyDescriptor(this, args):
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obj = get_arg(args, 0)
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prop = get_arg(args, 1)
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if not is_object(obj):
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raise MakeError(
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'TypeError',
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'Object.getOwnPropertyDescriptor called on non-object')
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desc = obj.own.get(to_string(prop))
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return convert_to_js_type(desc, args.space)
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def getOwnPropertyNames(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError(
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'TypeError',
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'Object.getOwnPropertyDescriptor called on non-object')
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return args.space.ConstructArray(obj.own.keys())
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def create(this, args):
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obj = get_arg(args, 0)
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if not (is_object(obj) or is_null(obj)):
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raise MakeError('TypeError',
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'Object prototype may only be an Object or null')
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temp = args.space.NewObject()
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temp.prototype = None if is_null(obj) else obj
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if len(args) > 1 and not is_undefined(args[1]):
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if six.PY2:
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args.tup = (args[1], )
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ObjectMethods.defineProperties.__func__(temp, args)
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else:
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args.tup = (args[1], )
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ObjectMethods.defineProperties(temp, args)
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return temp
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def defineProperty(this, args):
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obj = get_arg(args, 0)
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prop = get_arg(args, 1)
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attrs = get_arg(args, 2)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Object.defineProperty called on non-object')
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name = to_string(prop)
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if not obj.define_own_property(name, ToPropertyDescriptor(attrs),
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False):
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raise MakeError('TypeError', 'Cannot redefine property: %s' % name)
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return obj
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def defineProperties(this, args):
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obj = get_arg(args, 0)
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properties = get_arg(args, 1)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Object.defineProperties called on non-object')
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props = to_object(properties, args.space)
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for k, v in props.own.items():
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if not v.get('enumerable'):
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continue
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desc = ToPropertyDescriptor(props.get(unicode(k)))
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if not obj.define_own_property(unicode(k), desc, False):
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raise MakeError('TypeError',
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'Failed to define own property: %s' % k)
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return obj
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def seal(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError', 'Object.seal called on non-object')
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for desc in obj.own.values():
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desc['configurable'] = False
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obj.extensible = False
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return obj
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def freeze(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError', 'Object.freeze called on non-object')
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for desc in obj.own.values():
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desc['configurable'] = False
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if is_data_descriptor(desc):
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desc['writable'] = False
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obj.extensible = False
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return obj
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def preventExtensions(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Object.preventExtensions on non-object')
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obj.extensible = False
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return obj
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def isSealed(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Object.isSealed called on non-object')
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if obj.extensible:
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return False
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for desc in obj.own.values():
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if desc.get('configurable'):
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return False
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return True
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def isFrozen(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Object.isFrozen called on non-object')
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if obj.extensible:
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return False
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for desc in obj.own.values():
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if desc.get('configurable'):
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return False
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if is_data_descriptor(desc) and desc.get('writable'):
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return False
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return True
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def isExtensible(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Object.isExtensible called on non-object')
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return obj.extensible
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def keys(this, args):
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obj = get_arg(args, 0)
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if not is_object(obj):
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raise MakeError('TypeError', 'Object.keys called on non-object')
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return args.space.ConstructArray([
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unicode(e) for e, d in six.iteritems(obj.own)
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if d.get('enumerable')
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])
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# some utility functions:
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def ToPropertyDescriptor(obj): # page 38 (50 absolute)
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if not is_object(obj):
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raise MakeError('TypeError',
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'Can\'t convert non-object to property descriptor')
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desc = {}
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if obj.has_property('enumerable'):
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desc['enumerable'] = to_boolean(obj.get('enumerable'))
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if obj.has_property('configurable'):
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desc['configurable'] = to_boolean(obj.get('configurable'))
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if obj.has_property('value'):
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desc['value'] = obj.get('value')
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if obj.has_property('writable'):
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desc['writable'] = to_boolean(obj.get('writable'))
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if obj.has_property('get'):
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cand = obj.get('get')
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if not (is_undefined(cand) or is_callable(cand)):
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raise MakeError(
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'TypeError',
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'Invalid getter (it has to be a function or undefined)')
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desc['get'] = cand
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if obj.has_property('set'):
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cand = obj.get('set')
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if not (is_undefined(cand) or is_callable(cand)):
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raise MakeError(
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'TypeError',
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'Invalid setter (it has to be a function or undefined)')
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desc['set'] = cand
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if ('get' in desc or 'set' in desc) and ('value' in desc
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or 'writable' in desc):
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raise MakeError(
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'TypeError',
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'Invalid property. A property cannot both have accessors and be writable or have a value.'
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)
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return desc
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