def last_index_of(this, args):
search_string = get_arg(args, 0)
position = get_arg(args, 1)
s = this.to_string()
search_str = search_string.to_string()
num_pos = position.ToNumber()
from rpython.rlib.rfloat import INFINITY, isnan, isinf
if isnan(num_pos):
pos = INFINITY
elif isinf(num_pos):
pos = num_pos
else:
pos = int(num_pos)
length = len(s)
start = min(max(pos, 0), length)
search_len = len(search_str)
if isinf(start):
idx = s.rfind(search_str)
return idx
end = int(start + search_len)
assert end >= 0
idx = s.rfind(search_str, 0, end)
return idx
def split(this, args):
from js.object_space import isundefined
this.check_object_coercible()
separator = get_arg(args, 0, None)
limit = get_arg(args, 1)
string = this.to_string()
if isundefined(limit):
import math
lim = int(math.pow(2, 32) - 1)
else:
lim = limit.ToUInt32()
if lim == 0 or separator is None:
return [string]
r = separator.to_string()
if r == u'':
i = 0
splitted = []
while i < len(string):
splitted += [string[i]]
i += 1
return splitted
else:
splitted = _rsplit(string, r, lim)
return splitted
def last_index_of(this, args):
search_string = get_arg(args, 0)
position = get_arg(args, 1)
s = this.to_string()
search_str = search_string.to_string()
num_pos = position.ToNumber()
from rpython.rlib.rfloat import INFINITY, isnan, isinf
if isnan(num_pos):
pos = INFINITY
elif isinf(num_pos):
pos = num_pos
else:
pos = int(num_pos)
length = len(s)
start = min(max(pos, 0), length)
search_len = len(search_str)
if isinf(start):
idx = s.rfind(search_str)
return idx
end = int(start + search_len)
assert end >= 0
idx = s.rfind(search_str, 0, end)
return idx
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 split(this, args):
from js.object_space import isundefined
this.check_object_coercible()
separator = get_arg(args, 0, None)
limit = get_arg(args, 1)
string = this.to_string()
if isundefined(limit):
import math
lim = int(math.pow(2, 32) - 1)
else:
lim = limit.ToUInt32()
if lim == 0 or separator is None:
return [string]
r = separator.to_string()
if r == u'':
i = 0
splitted = []
while i < len(string):
splitted += [string[i]]
i += 1
return splitted
else:
splitted = _rsplit(string, r, lim)
return splitted
def js_atan2(this, args):
arg0 = get_arg(args, 0)
arg1 = get_arg(args, 1)
y = arg0.ToNumber()
x = arg1.ToNumber()
if isnan(x) or isnan(y):
return NAN
return math.atan2(y, x)
def js_atan2(this, args):
arg0 = get_arg(args, 0)
arg1 = get_arg(args, 1)
y = arg0.ToNumber()
x = arg1.ToNumber()
if isnan(x) or isnan(y):
return NAN
return math.atan2(y, x)
def slice(this, args):
o = this.ToObject()
from_index = get_arg(args, 0).ToUInt32()
to_index = get_arg(args, 1).ToUInt32()
n = []
for k in xrange(from_index, to_index):
n.append(o.get(unicode(str(k))))
return _w(n)
def js_pow(this, args):
w_x = get_arg(args, 0)
w_y = get_arg(args, 1)
x = w_x.ToNumber()
y = w_y.ToNumber()
if isnan(y):
return NAN
if y == 0:
return 1
if isnan(x):
return NAN
if abs(x) > 1 and y == INFINITY:
return INFINITY
if abs(x) > 1 and y == -INFINITY:
return 0
if abs(x) == 1 and isinf(y):
return NAN
if abs(x) < 1 and y == INFINITY:
return 0
if abs(x) < 1 and y == -INFINITY:
return INFINITY
if x == INFINITY and y > 0:
return INFINITY
if x == INFINITY and y < 0:
return 0
if x == -INFINITY and y > 0 and isodd(y):
return -INFINITY
if x == -INFINITY and y > 0 and not isodd(y):
return INFINITY
if x == -INFINITY and y < 0 and isodd(y):
return -0.0
if x == -INFINITY and y < 0 and not isodd(y):
return 0
if eq_signed_zero(x, 0.0) and y > 0:
return 0
if eq_signed_zero(x, 0.0) and y < 0:
return INFINITY
if eq_signed_zero(x, -0.0) and y > 0 and isodd(y):
return -0.0
if eq_signed_zero(x, -0.0) and y > 0 and not isodd(y):
return +0
if eq_signed_zero(x, -0.0) and y < 0 and isodd(y):
return -INFINITY
if eq_signed_zero(x, -0.0) and y < 0 and not isodd(y):
return INFINITY
if x < 0 and not isinstance(y, int):
return NAN
try:
return math.pow(x, y)
except OverflowError:
return INFINITY
def index_of(this, args):
obj = this
length = this.get(u'length').ToUInt32()
elem = get_arg(args, 0)
from_index = get_arg(args, 1).ToUInt32()
from js.jsobj import W_IntNumber
for i in xrange(from_index, length):
y = obj.get(unicode(str(i)))
if elem == y:
return W_IntNumber(i)
return W_IntNumber(-1)
def index_of(this, args):
obj = this
length = this.get(u'length').ToUInt32()
elem = get_arg(args, 0)
from_index = get_arg(args, 1).ToUInt32()
from js.jsobj import W_IntNumber
for i in xrange(from_index, length):
y = obj.get(unicode(i))
if elem == y:
return W_IntNumber(i)
return W_IntNumber(-1)
def slice(this, args):
o = this.ToObject()
from_index = get_arg(args, 0).ToUInt32()
to_index = get_arg(args, 1).ToUInt32()
from js.object_space import object_space
n = object_space.new_array(length=_w(to_index - from_index))
from js.jsobj import put_property
index = 0
for item in xrange(from_index, to_index):
put_property(n, unicode(str(index)), o.get(unicode(str(item))))
index += 1
return n
def js_pow(this, args):
w_x = get_arg(args, 0)
w_y = get_arg(args, 1)
x = w_x.ToNumber()
y = w_y.ToNumber()
if isnan(y):
return NAN
if y == 0:
return 1
if isnan(x):
return NAN
if abs(x) > 1 and y == INFINITY:
return INFINITY
if abs(x) > 1 and y == -INFINITY:
return 0
if abs(x) == 1 and isinf(y):
return NAN
if abs(x) < 1 and y == INFINITY:
return 0
if abs(x) < 1 and y == -INFINITY:
return INFINITY
if x == INFINITY and y > 0:
return INFINITY
if x == INFINITY and y < 0:
return 0
if x == -INFINITY and y > 0 and isodd(y):
return -INFINITY
if x == -INFINITY and y > 0 and not isodd(y):
return INFINITY
if x == -INFINITY and y < 0 and isodd(y):
return -0.0
if x == -INFINITY and y < 0 and not isodd(y):
return 0
if eq_signed_zero(x, 0.0) and y > 0:
return 0
if eq_signed_zero(x, 0.0) and y < 0:
return INFINITY
if eq_signed_zero(x, -0.0) and y > 0 and isodd(y):
return -0.0
if eq_signed_zero(x, -0.0) and y > 0 and not isodd(y):
return +0
if eq_signed_zero(x, -0.0) and y < 0 and isodd(y):
return -INFINITY
if eq_signed_zero(x, -0.0) and y < 0 and not isodd(y):
return INFINITY
if x < 0 and not isinstance(y, int):
return NAN
try:
return math.pow(x, y)
except OverflowError:
return INFINITY
def js_eval(ctx):
from rpython.rlib.parsing.parsing import ParseError
from rpython.rlib.parsing.deterministic import LexerError
from js.astbuilder import parse_to_ast
from js.jscode import ast_to_bytecode
from js.jsobj import W_String
from js.functions import JsEvalCode
from js.execution_context import EvalExecutionContext
from js.astbuilder import FakeParseError
from js.exception import JsSyntaxError
args = ctx.argv()
x = get_arg(args, 0)
if not isinstance(x, W_String):
from js.completion import NormalCompletion
return NormalCompletion(value=x)
src = x.to_string()
try:
ast = parse_to_ast(src)
except ParseError, e:
#error = e.errorinformation.failure_reasons
#error_lineno = e.source_pos.lineno
#error_pos = e.source_pos.columnno
#raise JsSyntaxError(msg = unicode(error), src = unicode(src), line = error_lineno, column = error_pos)
raise JsSyntaxError()
def parse_float(this, args):
from js.runistr import encode_unicode_utf8
from js.constants import num_lit_rexp
string = get_arg(args, 0)
input_string = string.to_string()
trimmed_string = _strip(input_string)
str_trimmed_string = encode_unicode_utf8(trimmed_string)
match_data = num_lit_rexp.match(str_trimmed_string)
if match_data is not None:
number_string = match_data.group()
else:
number_string = ''
if number_string == 'Infinity' or number_string == '+Infinity':
return INFINITY
elif number_string == '-Infinity':
return -INFINITY
try:
number = float(number_string)
return number
except ValueError:
pass
return NAN
def sort(this, args):
obj = this
length = this.get(u'length').ToUInt32()
comparefn = get_arg(args, 0)
# TODO check if implementation defined
# sorts need to be in-place, lets do some very non-fancy bubble sort for starters
while True:
swapped = False
for i in xrange(1, length):
x = unicode(str(i - 1))
y = unicode(str(i))
comp = sort_compare(obj, x, y, comparefn)
if comp == 1:
tmp_x = obj.get(x)
tmp_y = obj.get(y)
obj.put(x, tmp_y)
obj.put(y, tmp_x)
swapped = True
if not swapped:
break
return obj
def parse_float(this, args):
from js.runistr import encode_unicode_utf8
from js.constants import num_lit_rexp
string = get_arg(args, 0)
input_string = string.to_string()
trimmed_string = _strip(input_string)
str_trimmed_string = encode_unicode_utf8(trimmed_string)
match_data = num_lit_rexp.match(str_trimmed_string)
if match_data is not None:
number_string = match_data.group()
else:
number_string = ''
if number_string == 'Infinity' or number_string == '+Infinity':
return INFINITY
elif number_string == '-Infinity':
return -INFINITY
try:
number = float(number_string)
return number
except ValueError:
pass
return NAN
def js_eval(ctx):
from rpython.rlib.parsing.parsing import ParseError
from rpython.rlib.parsing.deterministic import LexerError
from js.astbuilder import parse_to_ast
from js.jscode import ast_to_bytecode
from js.jsobj import W_String
from js.functions import JsEvalCode
from js.execution_context import EvalExecutionContext
from js.astbuilder import FakeParseError
from js.exception import JsSyntaxError
args = ctx.argv()
x = get_arg(args, 0)
if not isinstance(x, W_String):
from js.completion import NormalCompletion
return NormalCompletion(value=x)
src = x.to_string()
try:
ast = parse_to_ast(src)
except ParseError, e:
#error = e.errorinformation.failure_reasons
#error_lineno = e.source_pos.lineno
#error_pos = e.source_pos.columnno
#raise JsSyntaxError(msg = unicode(error), src = unicode(src), line = error_lineno, column = error_pos)
raise JsSyntaxError()
def set_time(this, args):
_assert_date(this)
from js.jsobj import W_DateObject
assert isinstance(this, W_DateObject)
arg0 = get_arg(args, 0)
this._primitive_value_ = arg0
return arg0
def set_time(this, args):
_assert_date(this)
from js.jsobj import W_DateObject
assert isinstance(this, W_DateObject)
arg0 = get_arg(args, 0)
this._primitive_value_ = arg0
return arg0
def sort(this, args):
obj = this
length = this.get(u'length').ToUInt32()
comparefn = get_arg(args, 0)
# TODO check if implementation defined
# sorts need to be in-place, lets do some very non-fancy bubble sort for starters
while True:
swapped = False
for i in xrange(1, length):
x = unicode(str(i - 1))
y = unicode(str(i))
comp = sort_compare(obj, x, y, comparefn)
if comp == 1:
tmp_x = obj.get(x)
tmp_y = obj.get(y)
obj.put(x, tmp_y)
obj.put(y, tmp_x)
swapped = True
if not swapped:
break
return obj
def floor(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
return math.floor(x)
def js_abs(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
return abs(x)
def js_cos(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x) or isinf(x):
return NAN
return math.cos(x)
def js_abs(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
return abs(x)
def floor(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
return math.floor(x)
def js_cos(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x) or isinf(x):
return NAN
return math.cos(x)
def last_index_of(this, args):
obj = this
elem = get_arg(args, 0)
length = this.get(u'length').ToUInt32()
from_index = length
if len(args) > 1:
findex = get_arg(args, 1).ToInt32()
if findex < 0:
from_index = length + findex
else:
from_index = findex
from js.jsobj import W_IntNumber
for i in xrange(from_index, -1, -1):
y = obj.get(unicode(str(i)))
if elem == y:
return W_IntNumber(i)
return W_IntNumber(-1)
def last_index_of(this, args):
obj = this
elem = get_arg(args, 0)
length = this.get(u'length').ToUInt32()
from_index = length
if len(args) > 1:
findex = get_arg(args, 1).ToInt32()
if findex < 0:
from_index = length + findex
else:
from_index = findex
from js.jsobj import W_IntNumber
for i in xrange(from_index, -1, -1):
y = obj.get(unicode(i))
if elem == y:
return W_IntNumber(i)
return W_IntNumber(-1)
def js_asin(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x) or isinf(x):
return NAN
if x > 1 or x < -1:
return NAN
return math.asin(x)
def for_each(this, args):
obj = this
length = this.get(u'length').ToUInt32()
callback = get_arg(args, 0)
from js.jsobj import W_BasicFunction
assert isinstance(callback, W_BasicFunction)
for i in xrange(length):
x = obj.get(unicode(str(i)))
callback.Call(args=[x], this=newundefined())
def for_each(this, args):
obj = this
length = this.get(u'length').ToUInt32()
callback = get_arg(args, 0)
from js.jsobj import W_BasicFunction
assert isinstance(callback, W_BasicFunction)
for i in xrange(length):
x = obj.get(unicode(str(i)))
callback.Call(args=[x], this=newundefined())
def js_tan(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x) or isinf(x):
return NAN
if x < 0:
return NAN
return math.tan(x)
def js_tan(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x) or isinf(x):
return NAN
if x < 0:
return NAN
return math.tan(x)
def js_asin(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x) or isinf(x):
return NAN
if x > 1 or x < -1:
return NAN
return math.asin(x)
def char_at(this, args):
pos = get_arg(args, 0)
position = pos.ToInt32()
this.check_object_coercible()
string = this.to_string()
size = len(string)
if position < 0 or position >= size:
return u''
return string[position]
def set_year(this, args):
arg0 = get_arg(args, 0)
year = arg0.ToInteger()
if isnan(year) or year < 0 or year > 99:
this.set_primitive_value(_w(NAN))
return NAN
y = year + 1900
c = JsDateChange()
c.set_year(y)
change_wdate(this, c)
return y
def js_call(ctx):
func = ctx.this_binding()
args = ctx.argv()
if not func.is_callable():
raise JsTypeError(u'')
this_arg = get_arg(args, 0)
arg_list = args[1:]
res = func.Call(args=arg_list, this=this_arg, calling_context=ctx)
compl = NormalCompletion(value=_w(res))
return compl
def char_code_at(this, args):
pos = get_arg(args, 0)
this.check_object_coercible()
string = this.to_string()
position = pos.ToInt32()
size = len(string)
if position < 0 or position >= size:
return NAN
char = string[position]
return ord(char)
def char_at(this, args):
pos = get_arg(args, 0)
position = pos.ToInt32()
this.check_object_coercible()
string = this.to_string()
size = len(string)
if position < 0 or position >= size:
return u''
return string[position]
def set_year(this, args):
arg0 = get_arg(args, 0)
year = arg0.ToInteger()
if isnan(year) or year < 0 or year > 99:
this.set_primitive_value(_w(NAN))
return NAN
y = year + 1900
c = JsDateChange()
c.set_year(y)
change_wdate(this, c)
return y
def char_code_at(this, args):
pos = get_arg(args, 0)
this.check_object_coercible()
string = this.to_string()
position = pos.ToInt32()
size = len(string)
if position < 0 or position >= size:
return NAN
char = string[position]
return ord(char)
def js_sqrt(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x < 0:
return NAN
if isinf(x):
return INFINITY
return math.sqrt(x)
def js_atan(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x == INFINITY:
return math.pi / 2
if x == -INFINITY:
return -math.pi / 2
return math.atan(x)
def js_exp(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x == INFINITY:
return INFINITY
if x == -INFINITY:
return 0
return math.exp(x)
def js_ceil(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x == INFINITY:
return INFINITY
if x == -INFINITY:
return -INFINITY
return math.ceil(x)
def js_exp(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x == INFINITY:
return INFINITY
if x == -INFINITY:
return 0
return math.exp(x)
def js_ceil(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x == INFINITY:
return INFINITY
if x == -INFINITY:
return -INFINITY
return math.ceil(x)
def js_atan(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x == INFINITY:
return math.pi / 2
if x == -INFINITY:
return -math.pi / 2
return math.atan(x)
def js_sqrt(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x < 0:
return NAN
if isinf(x):
return INFINITY
return math.sqrt(x)
def js_log(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x < 0:
return NAN
if x == 0:
return -INFINITY
if x == INFINITY:
return INFINITY
return math.log(x)
def js_log(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return NAN
if x < 0:
return NAN
if x == 0:
return -INFINITY
if x == INFINITY:
return INFINITY
return math.log(x)
def js_load(ctx):
from js.interpreter import load_file
from js.jscode import ast_to_bytecode
from js.functions import JsEvalCode
from js.execution_context import EvalExecutionContext
args = ctx.argv()
f = get_arg(args, 0)
filename = f.to_string()
ast = load_file(filename)
symbol_map = ast.symbol_map
code = ast_to_bytecode(ast, symbol_map)
f = JsEvalCode(code)
calling_context = ctx._calling_context_
ctx = EvalExecutionContext(f, calling_context=calling_context)
f.run(ctx)
def js_load(ctx):
from js.interpreter import load_file
from js.jscode import ast_to_bytecode
from js.functions import JsEvalCode
from js.execution_context import EvalExecutionContext
args = ctx.argv()
f = get_arg(args, 0)
filename = f.to_string()
ast = load_file(filename)
symbol_map = ast.symbol_map
code = ast_to_bytecode(ast, symbol_map)
f = JsEvalCode(code)
calling_context = ctx._calling_context_
ctx = EvalExecutionContext(f, calling_context=calling_context)
f.run(ctx)
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
def unescape(this, args):
string = get_arg(args, 0)
r1 = string.to_string()
r2 = len(r1)
r = u''
k = 0
hexchars = u'0123456789abcdef'
while k != r2:
c = r1[k]
if c == u'%':
# 8. 9. 10.
if (k > r2 - 6) or (r1[k + 1] != u'u') or (
not len(r1) == 6
and _string_match_chars(r1[k + 2:k + 6], hexchars)):
# got step 14
if k > r2 - 3: # 14.
pass # goto step 18
else:
if not _string_match_chars(r1[k + 1:k + 3],
hexchars): # 15.
pass # goto step 18
else:
# 16
hex_numeral = u'00' + r1[k + 1:k + 3]
number = int(str(hex_numeral), 16)
c = unichr(number)
#17
k += 2
else:
# 11.
hex_numeral = r1[k + 2:k + 6]
number = int(str(hex_numeral), 16)
c = unichr(number)
# 12.
k += 5
# step 18
r += c
k += 1
return r
def js_round(this, args):
arg0 = get_arg(args, 0)
x = arg0.ToNumber()
if isnan(x):
return x
if x == 0:
return x
if x > 0 and x < 0.5:
return 0
if x < 0 and x >= -0.5:
return -0.0
if isinf(x):
return x
return math.floor(x + 0.5)
