def can_put(self, p):
from js.object_space import isundefined, isnull_or_undefined
desc = self.get_own_property(p)
if desc is not None:
if is_accessor_descriptor(desc) is True:
if isundefined(desc.setter):
return False
else:
return True
return desc.writable
proto = self.prototype()
if isnull_or_undefined(proto):
return self.extensible()
assert isinstance(proto, W_BasicObject)
inherited = proto.get_property(p)
if inherited is None:
return self.extensible()
if is_accessor_descriptor(inherited) is True:
if isundefined(inherited.setter):
return False
else:
return True
else:
if self.extensible() is False:
return False
else:
return inherited.writable
def Call(self, args=[], this=None, calling_context=None):
from js.object_space import _w, isnull_or_undefined
if len(args) >= 1 and not isnull_or_undefined(args[0]):
boolval = args[0].to_boolean()
return _w(boolval)
else:
return _w(False)
def __init__(self, code, formal_parameters=[], argv=[], this=newundefined(), strict=False, scope=None, w_func=None):
from js.jsobj import W_BasicObject
from js.object_space import object_space, isnull_or_undefined
stack_size = code.estimated_stack_size()
env_size = code.env_size() + 1 # neet do add one for the arguments object
ExecutionContext.__init__(self, stack_size, env_size)
self._code_ = code
self._argument_values_ = argv
self._strict_ = strict
self._scope_ = scope
self._w_func_ = w_func
self._calling_context_ = None
from js.lexical_environment import DeclarativeEnvironment
localEnv = DeclarativeEnvironment(scope, env_size, False)
self._lexical_environment_ = localEnv
self._variable_environment_ = localEnv
if strict:
self._this_binding_ = this
else:
if this is None or isnull_or_undefined(this):
self._this_binding_ = object_space.global_object
else:
assert isinstance(this, W_BasicObject)
if this.klass() is not 'Object':
self._this_binding_ = this.ToObject()
else:
self._this_binding_ = this
self.declaration_binding_initialization()
def js_apply(ctx):
from js.object_space import isnull_or_undefined
func = ctx.this_binding()
args = ctx.argv()
this_arg = get_arg(args, 0)
arg_array = get_arg(args, 1)
if isnull_or_undefined(arg_array):
res = func.Call(args=[], this=this_arg, calling_context=ctx)
compl = NormalCompletion(value=_w(res))
return compl
from js.jsobj import W_BasicObject
if not isinstance(arg_array, W_BasicObject):
raise JsTypeError(u'')
length = arg_array.get(u'length')
n = length.ToUInt32()
arg_list = []
index = 0
while index < n:
index_name = unicode(str(index))
next_arg = arg_array.get(index_name)
arg_list.append(next_arg)
index += 1
res = func.Call(args=arg_list, this=this_arg, calling_context=ctx)
compl = NormalCompletion(value=_w(res))
return compl
def Call(self, args=[], this=None, calling_context=None):
from js.object_space import _w, isnull_or_undefined, isundefined
if len(args) >= 1 and not isnull_or_undefined(args[0]):
return _w(args[0].ToNumber())
elif len(args) >= 1 and isundefined(args[0]):
return _w(NAN)
else:
return _w(0.0)
def join(this, args):
from js.object_space import isundefined
separator = get_arg(args, 0)
o = this.ToObject()
len_val = o.get(u'length')
length = len_val.ToUInt32()
if isundefined(separator):
sep = u','
else:
sep = separator.to_string()
if length == 0:
return u''
element0 = o.get(u'0')
if isnull_or_undefined(element0):
r = u''
else:
r = element0.to_string()
k = 1
while(k < length):
s = r + sep
element = o.get(unicode(str(k)))
if isnull_or_undefined(element):
_next = u''
else:
_next = element.to_string()
r = s + _next
k += 1
return r
def join(this, args):
from js.object_space import isundefined
separator = get_arg(args, 0)
o = this.ToObject()
len_val = o.get(u'length')
length = len_val.ToUInt32()
if isundefined(separator):
sep = u','
else:
sep = separator.to_string()
if length == 0:
return u''
element0 = o.get(u'0')
if isnull_or_undefined(element0):
r = u''
else:
r = element0.to_string()
k = 1
while (k < length):
s = r + sep
element = o.get(unicode(str(k)))
if isnull_or_undefined(element):
_next = u''
else:
_next = element.to_string()
r = s + _next
k += 1
return r
def _named_properties_dict(self):
from js.object_space import isnull_or_undefined
my_d = {}
for i in self._property_map_.keys():
my_d[i] = None
proto = self.prototype()
if not isnull_or_undefined(proto):
assert isinstance(proto, W_BasicObject)
proto_d = proto._named_properties_dict()
else:
proto_d = {}
my_d.update(proto_d)
return my_d
def has_instance(self, v):
from js.object_space import isnull_or_undefined
if not isinstance(v, W_BasicObject):
return False
o = self.get(u'prototype')
if not isinstance(o, W_BasicObject):
raise JsTypeError(u'has_instance')
while True:
assert isinstance(v, W_BasicObject)
v = v.prototype()
if isnull_or_undefined(v):
return False
if v == o:
return True
def _can_idx_put(self, idx):
from js.object_space import isundefined, isnull_or_undefined
prop = self._get_iprop(idx)
if prop is None:
desc = None
else:
desc = prop.to_property_descriptor()
#desc = self._get_own_idx_property(idx)
if desc is not None:
if is_accessor_descriptor(desc) is True:
if isundefined(desc.setter):
return Descr(False, desc, None, prop)
else:
return Descr(True, desc, None, prop)
return Descr(desc.writable, desc, None, prop)
proto = self.prototype()
if isnull_or_undefined(proto):
return Descr(self.extensible(), None, None, prop)
assert isinstance(proto, W_BasicObject)
if isinstance(proto, W__Array):
inherited = proto._get_idx_property(idx)
else:
p = unicode(str(idx))
inherited = proto.get_property(p)
if inherited is None:
return Descr(self.extensible(), None, None, prop)
if is_accessor_descriptor(inherited) is True:
if isundefined(inherited.setter):
return Descr(False, None, inherited, prop)
else:
return Descr(True, None, inherited, prop)
else:
if self.extensible() is False:
return Descr(False, None, inherited, prop)
else:
return Descr(inherited.writable, None, inherited, prop)
def Call(self, args=[], this=None, calling_context=None):
from js.object_space import isnull_or_undefined
from js.builtins import get_arg
value = get_arg(args, 0)
if isinstance(value, W_BasicObject):
return value
if isinstance(value, W_String):
return value.ToObject()
if isinstance(value, W_Boolean):
return value.ToObject()
if isinstance(value, W_Number):
return value.ToObject()
assert isnull_or_undefined(value)
from js.object_space import object_space
obj = object_space.new_obj()
return obj