class Property(ClassMember):
getter = None
_immutable_fields_ = [
'name', 'mangled_name', 'access_flags', 'w_initial_value', 'getter'
]
def __init__(self, name, klass, access_flags, w_initial_value, src=None):
ClassMember.__init__(self, access_flags)
self.name = name
self.klass = klass
self.mangled_name = self.mk_mangled_name()
self.src = src # which Property this one is a copy() of
assert w_initial_value is not None
self.w_initial_value = w_initial_value
self.reset_initial_value()
def reset_initial_value(self):
self.value = self.w_initial_value
if self.src is not None:
self.r_value = self.src.r_value
else:
self.r_value = W_Reference(None) # a new ref, lazily filled
def getclass(self):
return self.klass
def mk_mangled_name(self):
if self.is_public():
return self.name
if self.is_protected():
return '\x00*\x00' + self.name
if self.is_private():
return '\x00%s\x00%s' % (self.klass.name, self.name)
raise AssertionError
def getvalue(self, space):
assert self.is_static()
if self.r_value.deref_temp() is None:
self.r_value.store(self.value.eval_static(space))
return self.r_value
def copy(self):
res = Property(self.name,
self.klass,
self.access_flags,
self.w_initial_value,
src=self)
res.value = self.value
return res
def special_lookup(self, LOOKUP, interp, this, w_newvalue):
pass
def repr(self):
return "%s::$%s" % (self.klass.name, self.name)
class Property(ClassMember):
getter = None
_immutable_fields_ = ['name', 'mangled_name', 'access_flags', 'w_initial_value', 'getter']
def __init__(self, name, klass, access_flags, w_initial_value, src=None):
ClassMember.__init__(self, access_flags)
self.name = name
self.klass = klass
self.mangled_name = self.mk_mangled_name()
self.src = src # which Property this one is a copy() of
assert w_initial_value is not None
self.w_initial_value = w_initial_value
self.reset_initial_value()
def reset_initial_value(self):
self.value = self.w_initial_value
if self.src is not None:
self.r_value = self.src.r_value
else:
self.r_value = W_Reference(None) # a new ref, lazily filled
def getclass(self):
return self.klass
def mk_mangled_name(self):
if self.is_public():
return self.name
if self.is_protected():
return '\x00*\x00' + self.name
if self.is_private():
return '\x00%s\x00%s' % (self.klass.name, self.name)
raise AssertionError
def getvalue(self, space):
assert self.is_static()
if self.r_value.deref_temp() is None:
self.r_value.store(self.value.eval_static(space))
return self.r_value
def copy(self):
res = Property(self.name, self.klass, self.access_flags,
self.w_initial_value, src=self)
res.value = self.value
return res
def special_lookup(self, LOOKUP, interp, this, w_newvalue):
pass
def repr(self):
return "%s::$%s" % (self.klass.name, self.name)
def test_call_args(self):
space = ObjSpace()
interp = MockInterpreter(space)
sin = interp.locate_function("sin")
w_res = space.call_args(sin, [space.wrap(1.2)])
assert space.float_w(w_res) == math.sin(1.2)
max = interp.locate_function("max")
w_res = space.call_args(
max, [space.wrap(2), space.wrap(15),
space.wrap(3)])
assert space.int_w(w_res) == 15
w_res = space.call_args(
max, [W_Reference(space.wrap(2)),
space.wrap(15),
space.wrap(3)])
assert space.int_w(w_res) == 15
str_repeat = interp.locate_function("str_repeat")
w_res = space.call_args(str_repeat, [space.newstr("a"), space.wrap(3)])
assert space.str_w(w_res) == "aaa"
source = """<?php
function f($a, $b) {
return $a + 10 * $b;
}
"""
bc = compile_php('<input>', source, space, interp)
interp.run_main(space, bc)
f = interp.locate_function("f")
w_res = space.call_args(f, [space.wrap(1), space.wrap(2)])
assert space.int_w(w_res) == 21
def getvalue(self, space):
assert self.is_static()
r_value = self.r_value
if not isinstance(r_value, W_Reference):
return W_Reference(r_value.eval_static(space))
else:
return r_value
def check_reference(space, w_ref, fname):
if not isinstance(w_ref, W_Reference):
space.ec.hippy_warn("The built-in function %s() takes an argument "
"by reference, but didn't get a reference in "
"the indirect call" % (fname,))
w_ref = W_Reference(w_ref)
return w_ref
def load_ref(space, fp, memo):
fp.error_pos = fp.pos
type_ = fp.readchr()
if type_ == 'a':
fp.expect(':')
w_result = load_array(space, fp, memo)
elif type_ == 'O':
fp.expect(':')
w_result = load_object(space, fp, memo)
elif type_ == 'R':
w_result = load_reference(fp, memo)
elif type_ == 'r':
w_temp = load_reference(fp, memo)
w_result = W_Reference(w_temp.deref())
else:
w_result = W_Reference(load_primitive(space, fp, type_))
memo.add_object_reference(w_result)
return w_result
def _lookup_item_ref(self, space, w_arg):
if self.klass.is_array_access:
interp = space.ec.interpreter
w_res = interp.call_method(self, 'offsetGet', [w_arg])
if isinstance(w_res, W_Reference):
return w_res
else:
if not isinstance(w_res, W_InstanceObject):
interp.notice("Indirect modification of overloaded element"
" of %s has no effect" % (self.klass.name, ))
return W_Reference(w_res)
def _setitem_str(self, key, w_value, as_ref, unique_item=False):
if not as_ref:
cell = self._get_cell(jit.promote(self._globals_version), key)
if cell is not None:
w_old = cell.ref
assert isinstance(w_old, W_Reference)
w_old.store(w_value, unique_item)
return self
w_value = W_Reference(w_value)
assert isinstance(w_value, W_Reference)
self.set_var(key, w_value)
gframe = self.space.ec.interpreter.global_frame
if gframe is not None:
gframe.set_ref_by_name(key, w_value)
return self
def _create_fixed_iter(self, space, contextclass, byref):
# not exactly correct, because it computes the list of returned
# attributes at once. We might see differences if the object
# is modified during iteration. "But well" for now.
from hippy.objects.arrayiter import W_FixedIterator
klass = self.getclass()
items_w = []
attrs = self.map.get_all_attrs()
for attr in attrs:
key = attr.name
w_value = self.storage_w[attr.index]
key1 = klass.check_access_and_demangle_property(key, contextclass)
if key1 is not None:
if byref and not isinstance(w_value, W_Reference):
w_value = W_Reference(w_value)
self.storage_w[attr.index] = w_value
items_w.append((key1, w_value))
return W_FixedIterator(items_w)
def _make_property(self, prop, w_initial_value):
if isinstance(prop, tuple):
name, access_flags = prop
p = Property(name, self, access_flags)
self.properties[name] = p
self.property_decl.append(p)
if not p.is_static():
p.value = w_initial_value
else:
if not isinstance(w_initial_value, W_Object):
r_value = w_initial_value
else:
r_value = W_Reference(w_initial_value)
p.r_value = r_value
elif not we_are_translated(): # compile time only
prop = prop.build(self)
self.properties[prop.name] = prop
self.property_decl.append(prop)
def call_args(self,
interp,
args_w,
w_this=None,
thisclass=None,
closureargs=None):
from hippy.interpreter import Frame
from hippy.objects.instanceobject import W_InstanceObject
# XXX warn if too many arguments and this function does not call
# func_get_arg() & friends
if w_this is not None:
assert isinstance(w_this, W_InstanceObject)
newframe = Frame(interp, self.bytecode, self, thisclass, w_this)
newframe.args_w = args_w # save it for later, for func_get_args
nb_args = len(args_w)
for i in range(len(self.types)):
if i < nb_args:
# this argument was provided
w_argument = args_w[i]
if self.needs_value(i) and isinstance(w_argument, W_Reference):
w_argument = w_argument.deref()
else:
arg = self.defaults_w[i]
if arg is None:
interp.warn("Missing argument %d for %s()" %
(i + 1, self.get_fullname()))
interp.notice("Undefined variable: %s" % (self.names[i]))
w_argument = interp.space.w_Null
else:
w_argument = arg.eval_static(interp.space)
newframe.vars_w[i] = w_argument
if closureargs is not None:
assert len(closureargs) == len(self.closuredecls)
cl_start = len(self.types)
if self.bytecode.this_var_num >= 0:
cl_start += 1
for i, decl in enumerate(self.closuredecls):
r_var = closureargs[i]
if not isinstance(r_var, W_Reference):
r_var = W_Reference(r_var)
newframe.vars_w[cl_start + i] = r_var
w_res = interp.interpret(newframe)
assert w_res is not None
return w_res
def do_get(self, interp, w_obj, attr, isref):
key = (w_obj, attr)
recursion = rec_custom_get_set
if key in recursion:
interp.notice("Undefined property: %s::$%s" % (self.name, attr))
w_res = interp.space.w_Null
else:
recursion[key] = None
try:
method = self.method__get
space = interp.space
w_res = method.method_func.call_args(interp,
[space.newstr(attr)],
w_this=w_obj,
thisclass=self)
finally:
del recursion[key]
if isref and not isinstance(w_res, W_Reference):
interp.notice("Indirect modification of overloaded property "
"%s::$%s has no effect" % (self.name, attr))
w_res = W_Reference(w_res)
return w_res
def reset_initial_value(self):
self.value = self.w_initial_value
if self.src is not None:
self.r_value = self.src.r_value
else:
self.r_value = W_Reference(None) # a new ref, lazily filled
cls = self.getclass()
try:
name = cls.lookup_property_name(LOOKUP_GETATTR, interp, self, attr,
contextclass)
except VisibilityError, e:
if cls.method__get is not None:
return cls.do_get(interp, self, attr, isref)
raise e.reraise_property(interp)
except SpecialPropertyReturn, e:
return e.w_value
mapattr = self.map.lookup(name)
if mapattr is not None:
w_value = self.storage_w[mapattr.index]
if w_value is not None:
if isref and not isinstance(w_value, W_Reference):
w_value = W_Reference(w_value)
self.storage_w[mapattr.index] = w_value
return w_value
if cls.method__get is not None:
return cls.do_get(interp, self, attr, isref)
if give_notice:
interp.notice("Undefined property: %s::$%s" % (cls.name, attr))
if isref:
r_value = interp.space.empty_ref()
self._create_attr(name, r_value)
return r_value
else:
return interp.space.w_Null
def getattr(self, interp, attr, contextclass=None, give_notice=False):
return self._getattr(interp,
def reset_initial_value(self):
self.value = self.w_initial_value
if self.src is not None:
self.r_value = self.src.r_value
else:
self.r_value = W_Reference(None) # a new ref, lazily filled
def unset_ref(self, interp):
self.store_ref(interp, W_Reference(interp.space.w_Null))
def store(self, interp, w_value, unique_item=False, give_notice=True):
assert not give_notice
return W_Reference(w_value)
def get_ref(self, interp, err_is_ref=True):
return W_Reference(self.w_obj)
def lookup_ref(self, interp):
return W_Reference(self.w_obj)
def empty_ref(self):
return W_Reference(self.w_Null)
def load_object(fp):
fp.next_reference_obj -= 1
needs_ref = (fp.next_reference_obj == 0)
#
fp.error_pos = fp.pos
try:
i = fp.consume(2)
except SerializerError:
i = fp.consume(1)
if fp.s[i] == '}':
fp.space.ec.notice("unserialize(): "
"Unexpected end of serialized data")
raise
s = fp.s
tp = s[i]
check_nonneg(i)
check_nonneg(fp.pos)
#
if tp == 'i':
if s[i + 1] != ':':
raise SerializerError("':' expected")
i = fp.read_int_until(';')
w_result = fp.space.wrap(i)
#
elif tp == 's':
if s[i + 1] != ':':
raise SerializerError("':' expected")
w_result = fp.space.newstr(load_str(fp, ';'))
#
elif tp == 'd':
if s[i + 1] != ':':
raise SerializerError("':' expected")
data = fp.read_substring_until(';')
if data == 'INF':
w_result = fp.space.wrap(rfloat.INFINITY)
elif data == '-INF':
w_result = fp.space.wrap(-rfloat.INFINITY)
elif data == 'NAN':
w_result = fp.space.wrap(rfloat.NAN)
else:
w_number, valid = convert_string_to_number(data)
if not valid:
raise SerializerError('bad double')
w_result = fp.space.newfloat(w_number.float_w(fp.space))
#
elif tp == 'b':
if s[i + 1] != ':':
raise SerializerError("':' expected")
i = fp.consume(2)
digit = s[i]
if digit == '0':
w_result = fp.space.w_False
elif digit == '1':
w_result = fp.space.w_True
else:
raise SerializerError('bad bool')
if s[i + 1] != ';':
raise SerializerError("';' expected")
#
elif tp == 'N':
if s[i + 1] != ';':
raise SerializerError("';' expected")
w_result = fp.space.w_Null
#
elif tp == 'a':
if s[i + 1] != ':':
raise SerializerError("':' expected")
length = fp.read_int_until(':', can_be_negative=False)
if length < 0:
raise SerializerError("integer overflow")
i = fp.consume(1)
if s[i] != '{':
raise SerializerError("'{' expected")
w_result = None
if needs_ref:
w_result = fp.space.empty_ref()
fp.save_reference(w_result)
# first try to load the array as a direct list
lst_w = []
expected = ['i', ':', '0', ';']
for n in range(length):
i = fp.pos
if i + len(expected) >= len(s):
break
for j in range(len(expected)):
if s[i] != expected[j]:
break
i += 1
else:
# ok, we got exactly 'i:N;' where N is the expected index
fp.pos = i
lst_w.append(load_object(fp))
# increment the expected counter
j = len(expected) - 2
while j >= 2:
if expected[j] != '9':
expected[j] = chr(ord(expected[j]) + 1)
break
expected[j] = '0'
j -= 1
else:
expected = ['i', ':', '1'] + expected[2:]
continue
break
else:
# we succeeded in loading the complete array as a list
n = length
_succeeded_as_a_list() # for tests
# fill in the remaining entries, if any, the slow way
w_array = fp.space.new_array_from_list(lst_w)
for n in range(n, length):
w_key = load_array_key(fp)
w_value = load_object(fp)
w_array = fp.space.setitem_maybe_inplace(w_array, w_key, w_value)
fp.expect_closing_brace()
if w_result is not None: # needs_ref
w_result.store(w_array, unique=True)
return w_result
else:
return w_array
#
elif tp == 'R':
if s[i + 1] != ':':
raise SerializerError("':' expected")
return load_reference(fp)
#
elif tp == 'r':
if s[i + 1] != ':':
raise SerializerError("':' expected")
return load_reference(fp).deref()
#
elif tp == 'O':
if s[i + 1] != ':':
raise SerializerError("':' expected")
klass_name = load_str(fp, ':')
space = fp.space
interp = space.ec.interpreter
klass = interp.lookup_class_or_intf(klass_name)
if klass is None:
klass = k_incomplete
w_instance = klass.get_empty_instance(space)
w_instance.setattr(interp, '__PHP_Incomplete_Class_Name',
space.wrap(klass_name), None)
else:
w_instance = klass.get_empty_instance(space)
w_result = w_instance
if needs_ref:
w_result = W_Reference(w_instance)
fp.save_reference(w_result)
count_attrs = fp.read_int_until(':') # negative value accepted :-(
i = fp.consume(1)
if s[i] != '{':
raise SerializerError("'{' expected")
attrs = {}
for i in xrange(count_attrs):
w_attr = load_array_key(fp)
w_value = load_object(fp)
attr_name = space.str_w(w_attr)
attrs[attr_name] = w_value
w_instance.setattr(interp, attr_name, w_value, None)
fp.expect_closing_brace()
w_instance.unserialize(space, attrs)
if '__wakeup' in klass.methods:
klass.methods['__wakeup'].method_func.call_args(space.ec.interpreter,
[], w_this=w_instance,
thisclass=klass)
return w_result
#
else:
if tp == '}':
fp.space.ec.notice("unserialize(): "
"Unexpected end of serialized data")
raise SerializerError('malformed input')
# this is for primitive types only; complex types 'return' above
if needs_ref:
w_result = W_Reference(w_result)
fp.save_reference(w_result)
return w_result