def compute_result_annotation(self, s_arg): from rpython.annotator.model import SomeInteger if isinstance(s_arg, SomeInteger) and s_arg.unsigned: raise UnexpectedRUInt("check_nonneg() arg is a %s" % ( s_arg.knowntype,)) s_nonneg = SomeInteger(nonneg=True) if not s_nonneg.contains(s_arg): raise IntegerCanBeNegative return s_arg
def test_annotation_to_lltype(): s_i = SomeInteger() s_pos = SomeInteger(nonneg=True) s_1 = SomeInteger(nonneg=True) s_1.const = 1 s_m1 = SomeInteger(nonneg=False) s_m1.const = -1 s_u = SomeInteger(nonneg=True, unsigned=True) s_u1 = SomeInteger(nonneg=True, unsigned=True) s_u1.const = r_uint(1) assert annotation_to_lltype(s_i) == lltype.Signed assert annotation_to_lltype(s_pos) == lltype.Signed assert annotation_to_lltype(s_1) == lltype.Signed assert annotation_to_lltype(s_m1) == lltype.Signed assert annotation_to_lltype(s_u) == lltype.Unsigned assert annotation_to_lltype(s_u1) == lltype.Unsigned assert annotation_to_lltype(SomeBool()) == lltype.Bool assert annotation_to_lltype(SomeChar()) == lltype.Char PS = lltype.Ptr(lltype.GcStruct('s')) s_p = SomePtr(ll_ptrtype=PS) assert annotation_to_lltype(s_p) == PS si0 = SomeInstance(DummyClassDef(), True) with py.test.raises(ValueError): annotation_to_lltype(si0) s_singlefloat = SomeSingleFloat() s_singlefloat.const = r_singlefloat(0.0) assert annotation_to_lltype(s_singlefloat) == lltype.SingleFloat
def rarith_intmask(s_obj): return SomeInteger()
def ord(self): # warning, on 32-bit with 32-bit unichars, this might return # negative numbers return SomeInteger()
def execute(self, space): getattr(space, self.method)(*self.args) def __repr__(self): return "space.%s(%s)" % (self.method, ', '.join(map(repr, self.args))) class PseudoRTyper: cache_dummy_values = {} # XXX: None keys crash the test, but translation sort-of allows it keytypes_s = [ SomeString(), SomeInteger(), SomeChar(), SomeUnicodeString(), SomeUnicodeCodePoint() ] st_keys = sampled_from(keytypes_s) st_values = sampled_from(keytypes_s + [SomeString(can_be_None=True)]) class MappingSpace(object): def __init__(self, s_key, s_value): from rpython.rtyper.rtuple import TupleRepr self.s_key = s_key self.s_value = s_value rtyper = PseudoRTyper()
def method_index(self, s_value): self.listdef.generalize(s_value) return SomeInteger(nonneg=True)
def method_count(self, frag, start=None, end=None): check_negative_slice(start, end, "count") return SomeInteger(nonneg=True)
def abs(self): return SomeInteger(nonneg=True, knowntype=self.knowntype)
def neg(self): return SomeInteger()
def rarith_longlongmask(s_obj): return SomeInteger(knowntype=rpython.rlib.rarithmetic.r_longlong)
def invert(self): return SomeInteger(knowntype=self.knowntype)
def rshift((int1, int2)): if isinstance(int1, SomeBool): return SomeInteger(nonneg=True) else: return SomeInteger(nonneg=int1.nonneg, knowntype=int1.knowntype)
def getitem((s_b, s_i)): return SomeInteger()
def lshift((int1, int2)): if isinstance(int1, SomeBool): return SomeInteger() else: return SomeInteger(knowntype=int1.knowntype)
def and_((int1, int2)): knowntype = rarithmetic.compute_restype(int1.knowntype, int2.knowntype) return SomeInteger(nonneg=int1.nonneg or int2.nonneg, knowntype=knowntype)
def sub((int1, int2)): knowntype = rarithmetic.compute_restype(int1.knowntype, int2.knowntype) return SomeInteger(knowntype=knowntype)
def cmp((obj1, obj2)): if obj1.is_immutable_constant() and obj2.is_immutable_constant(): return immutablevalue(cmp(obj1.const, obj2.const)) else: return SomeInteger()
def len(self): return SomeInteger(nonneg=True)
def immutablevalue(self, x): """The most precise SomeValue instance that contains the immutable value x.""" # convert unbound methods to the underlying function if hasattr(x, 'im_self') and x.im_self is None: x = x.im_func assert not hasattr(x, 'im_self') tp = type(x) if issubclass(tp, Symbolic): # symbolic constants support result = x.annotation() result.const_box = Constant(x) return result if tp is bool: result = SomeBool() elif tp is int: result = SomeInteger(nonneg=x >= 0) elif tp is long: if -sys.maxint - 1 <= x <= sys.maxint: x = int(x) result = SomeInteger(nonneg=x >= 0) else: # XXX: better error reporting? raise ValueError("seeing a prebuilt long (value %s)" % hex(x)) elif issubclass(tp, str): # py.lib uses annotated str subclasses no_nul = not '\x00' in x if len(x) == 1: result = SomeChar(no_nul=no_nul) else: result = SomeString(no_nul=no_nul) elif tp is unicode: no_nul = not u'\x00' in x if len(x) == 1: result = SomeUnicodeCodePoint(no_nul=no_nul) else: result = SomeUnicodeString(no_nul=no_nul) elif tp is bytearray: result = SomeByteArray() elif tp is tuple: result = SomeTuple(items=[self.immutablevalue(e) for e in x]) elif tp is float: result = SomeFloat() elif tp is list: key = Constant(x) try: return self.immutable_cache[key] except KeyError: result = SomeList(ListDef(self, s_ImpossibleValue)) self.immutable_cache[key] = result for e in x: result.listdef.generalize(self.immutablevalue(e)) result.const_box = key return result elif (tp is dict or tp is r_dict or tp is OrderedDict or tp is r_ordereddict): key = Constant(x) try: return self.immutable_cache[key] except KeyError: if tp is OrderedDict or tp is r_ordereddict: cls = SomeOrderedDict else: cls = SomeDict is_r_dict = issubclass(tp, r_dict) result = cls( DictDef(self, s_ImpossibleValue, s_ImpossibleValue, is_r_dict=is_r_dict)) self.immutable_cache[key] = result if is_r_dict: s_eqfn = self.immutablevalue(x.key_eq) s_hashfn = self.immutablevalue(x.key_hash) result.dictdef.dictkey.update_rdict_annotations( s_eqfn, s_hashfn) seen_elements = 0 while seen_elements != len(x): items = x.items() for ek, ev in items: result.dictdef.generalize_key(self.immutablevalue(ek)) result.dictdef.generalize_value( self.immutablevalue(ev)) #dictdef.seen_prebuilt_key(ek)---not needed any more seen_elements = len(items) # if the dictionary grew during the iteration, # start over again result.const_box = key return result elif tp is weakref.ReferenceType: x1 = x() if x1 is None: result = SomeWeakRef(None) # dead weakref else: s1 = self.immutablevalue(x1) assert isinstance(s1, SomeInstance) result = SomeWeakRef(s1.classdef) elif tp is property: return SomeProperty(x) elif ishashable(x) and x in BUILTIN_ANALYZERS: _module = getattr(x, "__module__", "unknown") result = SomeBuiltin(BUILTIN_ANALYZERS[x], methodname="%s.%s" % (_module, x.__name__)) elif extregistry.is_registered(x): entry = extregistry.lookup(x) result = entry.compute_annotation_bk(self) elif tp is type: result = SomeConstantType(x, self) elif callable(x): if hasattr(x, 'im_self') and hasattr(x, 'im_func'): # on top of PyPy, for cases like 'l.append' where 'l' is a # global constant list, the find_method() returns non-None s_self = self.immutablevalue(x.im_self) result = s_self.find_method(x.im_func.__name__) elif hasattr(x, '__self__') and x.__self__ is not None: # for cases like 'l.append' where 'l' is a global constant list s_self = self.immutablevalue(x.__self__) result = s_self.find_method(x.__name__) assert result is not None else: result = None if result is None: result = SomePBC([self.getdesc(x)]) elif hasattr(x, '_freeze_'): assert x._freeze_() is True # user-defined classes can define a method _freeze_(), which # is called when a prebuilt instance is found. If the method # returns True, the instance is considered immutable and becomes # a SomePBC(). Otherwise it's just SomeInstance(). result = SomePBC([self.getdesc(x)]) elif hasattr(x, '__class__') \ and x.__class__.__module__ != '__builtin__': if hasattr(x, '_cleanup_'): x._cleanup_() classdef = self.getuniqueclassdef(x.__class__) classdef.see_instance(x) result = SomeInstance(classdef) elif x is None: return s_None else: raise AnnotatorError("Don't know how to represent %r" % (x, )) result.const = x return result
def neg(self): return SomeInteger(knowntype=self.knowntype)
def ann_raw_malloc_usage(s_size): assert isinstance(s_size, SomeInteger) # XXX add noneg...? return SomeInteger(nonneg=True)
def invert(self): return SomeInteger()
def ann_offsetof(TYPE, fldname): return SomeInteger()
def pos(self): return SomeInteger(nonneg=True)
def ann_cast_adr_to_int(s, s_mode=None): return SomeInteger() # xxx
def method_rfind(self, frag, start=None, end=None): check_negative_slice(start, end, "rfind") return SomeInteger()
# ____________________________________________________________ class Sample(object): __slots__ = 'x' MemberDescriptorTypes = [type(Sample.x)] del Sample try: MemberDescriptorTypes.append(type(OSError.errno)) except AttributeError: # on CPython <= 2.4 pass # ____________________________________________________________ FORCE_ATTRIBUTES_INTO_CLASSES = { EnvironmentError: { 'errno': SomeInteger(), 'strerror': SomeString(can_be_None=True), 'filename': SomeString(can_be_None=True) }, } try: WindowsError except NameError: pass else: FORCE_ATTRIBUTES_INTO_CLASSES[WindowsError] = {'winerror': SomeInteger()}
def ord(self): return SomeInteger(nonneg=True)
def compute_result_annotation(self, s_no): from rpython.annotator.model import SomeInteger if not isinstance(s_no, SomeInteger): raise Exception("expecting an integer") return SomeInteger()
def method_getlength(self): return SomeInteger(nonneg=True)
def compute_result_annotation(self, s_arg): from rpython.annotator.model import SomeInteger if not SomeInteger().contains(s_arg): raise ExpectedRegularInt(s_arg) return s_arg