def test_clone_not_deep():
a1 = W_NormalObject()
b1 = W_NormalObject()
a1.setvalue('b', b1)
a2 = a1.clone()
b2 = a2.getvalue('b')
assert b1 is b2
def test_clone():
w1 = W_NormalObject()
w1.setvalue('abc', W_Integer(6))
w2 = w1.clone()
assert w2.getvalue('abc').value == 6
w2.setvalue('abc', W_Integer(99))
assert w2.getvalue('abc').value == 99
assert w1.getvalue('abc').value == 6 # still the old value
def test_normalobject():
w1 = W_NormalObject()
# 'setvalue' and 'getvalue' write and read the attributes by name.
w1.setvalue('abc', W_Integer(6))
w2 = w1.getvalue('abc')
assert isinstance(w2, W_Integer)
assert w2.value == 6
# a missing attribute...
assert w1.getvalue('bcd') is None
def eval_ObjectDefinition(self, ast, context):
parent_names = ast.parentnames
parent_values = map(lambda a: self.eval(a, context), ast.parentdefinitions)
parents = dict(zip(parent_names, parent_values))
parents['__parent__'] = context
obj = W_NormalObject(parents)
obj.parents = parent_names
self.eval(ast.block, obj)
context.setvalue(ast.name, obj)
return obj
def eval_MethodCall(self, ast, context):
receiver = self.eval(ast.receiver, context)
if ast.methodname == 'self':
subject = receiver.getparents()[0]
else:
subject = receiver.getvalue(ast.methodname)
if(subject.callable()):
block = subject.getvalue('block')
arg_names = subject.getvalue('arguments')
arg_values = map(lambda a: self.eval(a, context), ast.arguments)
method_context = W_NormalObject(dict(zip(arg_names, arg_values)))
method_context.setvalue('__parent__', receiver)
return self.eval(block,method_context)
else:
return subject
def op_method_call(self, arg):
args = []
for i in xrange(arg):
args.insert(0,self.stack.pop())
method = self.stack.pop()
receiver = self.stack.pop()
if isinstance(method, W_Method):
code = method.block
context = W_NormalObject()
i = 0
for a in args:
context.setvalue(code.symbols[i], a)
i += 1
context.setvalue('self', receiver)
context.setvalue('__parent__', receiver)
res = self.eval(code, context, self.interpreter)
else:
res = method
self.stack.append(res)
def test_getvalue_from_parent():
o = W_NormalObject({'foo': W_Integer(42)})
bar = W_NormalObject({'__parent__': o})
assert bar.getvalue('__parent__') is o
assert bar.getvalue('foo').value == 42
