def test_retrieve_symbol():
"""asSymbol
"This is the only place that new Symbols are created. A Symbol is created
if and only if there is not already a Symbol with its contents in existance."
Symbol
allInstancesDo: [ :sym |
self = sym
ifTrue: [ ^ sym ] ].
^ (Symbol basicNew: self size) initFrom: self"""
w_result = perform(w("someString"), "asSymbol")
assert w_result.as_string() == "someString"
w_anotherSymbol = perform(w("someString"), "asSymbol")
assert w_result is w_anotherSymbol
def test_ensure_save_original_nlr():
#ensure
# [^'b1'] ensure: ['b2']
import operator
bytes = reduce(operator.add, map(chr, [0x8F, 0, 0, 2, 0x21, 0x7c,
0x8F, 0, 0, 2, 0x22, 0x7d,
0xe0, 0x87, 0x78]))
s_class = space.w_BlockClosure.as_class_get_shadow(space)
ensure_ = find_symbol_in_methoddict_of('ensure:', s_class)
assert ensure_ is not None, 'Using image without #ensure:-method.'
s_method = create_method_shadow(bytes, [ensure_, w('b1'), w('b2'),
w('ensure'), space.w_BlockClosure])
# create a frame for our newly crafted method with a valid sender (to avoid raising returnFromTop to early)
s_initial_frame = create_method_shadow(chr(0x7c)).create_frame(space, w(0), [])
w_frame = s_method.create_frame(space, w(0), [], sender=s_initial_frame).w_self()
try:
interp.loop(w_frame)
except interpreter.ReturnFromTopLevel, e:
assert e.object.as_string() == 'b1'
def do_primitive(selector, operation, i=None, j=None, trace=False):
candidates = i if i is not None else [0x1FFFFFFF, 0x3FFFFFFF, 0x7FFFFFFF]
try:
w_selector = space.get_special_selector(selector)
except Exception:
w_selector = find_symbol_in_methoddict_of(selector, w(intmask(candidates[0])).getclass(space)._shadow)
interp.trace=trace
for i, v in enumerate(candidates):
x = w_l(v)
if j is None:
y = x
else:
if isinstance(j, list):
y = w_l(j[i])
else:
y = w_l(j)
z = perform_primitive(x, w_selector, y)
assert r_uint(z.value) == r_uint(operation(v, y.value))
interp.trace=False
def do_primitive(selector, operation, i=None, j=None, trace=False):
candidates = i if i is not None else [0x1FFFFFFF, 0x3FFFFFFF, 0x7FFFFFFF]
try:
w_selector = space.get_special_selector(selector)
except Exception:
w_selector = find_symbol_in_methoddict_of(
selector,
w(intmask(candidates[0])).getclass(space)._shadow)
interp.trace = trace
for i, v in enumerate(candidates):
x = w_l(v)
if j is None:
y = x
else:
if isinstance(j, list):
y = w_l(j[i])
else:
y = w_l(j)
z = perform_primitive(x, w_selector, y)
assert r_uint(z.value) == r_uint(operation(v, y.value))
interp.trace = False
def test_initialize_string_class():
interp.trace = False
#initialize String class, because equality testing requires a class var set.
initialize_class(w("string").getclass(tools.space))
def test_create_new_symbol():
py.test.skip("This test takes quite long and is actually included in test_retrieve_symbol.")
w_result = perform(w("someString"), "asSymbol")
assert w_result is not None
assert w_result.as_string() == "someString"
def test_initialize_string_class():
#initialize String class, because equality testing requires a class var set.
initialize_class(w("string").getclass(tools.space))