def __init__(self, config=None):
"NOT_RPYTHON: Basic initialization of objects."
self.fromcache = InternalSpaceCache(self).getorbuild
self.threadlocals = ThreadLocals()
# set recursion limit
# sets all the internal descriptors
if config is None:
from pypy.config.pypyoption import get_pypy_config
config = get_pypy_config(translating=False)
self.config = config
# import extra modules for side-effects
import pypy.interpreter.nestedscope # register *_DEREF bytecodes
self.interned_strings = {}
self.actionflag = ActionFlag() # changed by the signal module
self.user_del_action = UserDelAction(self)
self.frame_trace_action = FrameTraceAction(self)
self.actionflag.register_action(self.user_del_action)
self.actionflag.register_action(self.frame_trace_action)
from pypy.interpreter.pyframe import PyFrame
self.FrameClass = PyFrame # can be overridden to a subclass
# if self.config.objspace.logbytecodes:
# self.bytecodecounts = {}
self.initialize()
def test_periodic_action(self):
from pypy.interpreter.executioncontext import ActionFlag
class DemoAction(executioncontext.PeriodicAsyncAction):
counter = 0
def perform(self, ec, frame):
self.counter += 1
print '->', self.counter
if self.counter == 3:
raise Finished
space = self.space
a2 = DemoAction(space)
try:
space.actionflag.setcheckinterval(100)
space.actionflag.register_periodic_action(a2, True)
try:
for i in range(500):
space.appexec([], """():
n = 5
return n + 2
""")
except Finished:
pass
finally:
space.actionflag = ActionFlag() # reset to default
assert 10 < i < 110
def __init__(self, config=None):
"NOT_RPYTHON: Basic initialization of objects."
self.fromcache = InternalSpaceCache(self).getorbuild
self.threadlocals = ThreadLocals()
# set recursion limit
# sets all the internal descriptors
if config is None:
from pypy.config.pypyoption import get_pypy_config
config = get_pypy_config(translating=False)
self.config = config
# import extra modules for side-effects
import pypy.interpreter.nestedscope # register *_DEREF bytecodes
self.interned_strings = {}
self.actionflag = ActionFlag() # changed by the signal module
self.user_del_action = UserDelAction(self)
self.frame_trace_action = FrameTraceAction(self)
self.actionflag.register_action(self.user_del_action)
self.actionflag.register_action(self.frame_trace_action)
from pypy.interpreter.pyframe import PyFrame
self.FrameClass = PyFrame # can be overridden to a subclass
if self.config.objspace.logbytecodes:
self.bytecodecounts = [0] * 256
self.bytecodetransitioncount = {}
if self.config.objspace.timing:
self.timer = Timer()
else:
self.timer = DummyTimer()
self.initialize()
def __init__(self, config=None):
"""NOT_RPYTHON"""
self.fromcache = InternalSpaceCache(self).getorbuild
self.w_Ellipsis = special.Ellipsis()
self.w_NotImplemented = special.NotImplemented()
if config is None:
from pypy.config.pypyoption import get_pypy_config
config = get_pypy_config(translating=False)
self.config = config
self.interned_strings = make_weak_value_dictionary(self, str, W_Root)
self.builtin = DictObject({})
self.FrameClass = PyFrame
self.threadlocals = ThreadLocals()
self.actionflag = ActionFlag() # changed by the signal module
self.check_signal_action = None # changed by the signal module
class ObjSpace(object):
"""Base class for the interpreter-level implementations of object spaces.
http://codespeak.net/pypy/dist/pypy/doc/objspace.html"""
full_exceptions = True # full support for exceptions (normalization & more)
namespace_table = {}
def __init__(self, config=None):
"NOT_RPYTHON: Basic initialization of objects."
self.fromcache = InternalSpaceCache(self).getorbuild
self.threadlocals = ThreadLocals()
# set recursion limit
# sets all the internal descriptors
if config is None:
from pypy.config.pypyoption import get_pypy_config
config = get_pypy_config(translating=False)
self.config = config
# import extra modules for side-effects
import pypy.interpreter.nestedscope # register *_DEREF bytecodes
self.interned_strings = {}
self.actionflag = ActionFlag() # changed by the signal module
self.user_del_action = UserDelAction(self)
self.frame_trace_action = FrameTraceAction(self)
self.actionflag.register_action(self.user_del_action)
self.actionflag.register_action(self.frame_trace_action)
from pypy.interpreter.pyframe import PyFrame
self.FrameClass = PyFrame # can be overridden to a subclass
if self.config.objspace.logbytecodes:
self.bytecodecounts = [0] * 256
self.bytecodetransitioncount = {}
if self.config.objspace.timing:
self.timer = Timer()
else:
self.timer = DummyTimer()
self.initialize()
def startup(self):
# To be called before using the space
# Initialize all builtin modules
from pypy.interpreter.module import Module
for w_modname in self.unpackiterable(
self.sys.get('builtin_module_names')):
modname = self.str_w(w_modname)
mod = self.interpclass_w(self.getbuiltinmodule(modname))
if isinstance(mod, Module):
import time
self.timer.start("startup " + modname)
mod.startup(self)
self.timer.stop("startup " + modname)
def finish(self):
w_exitfunc = self.sys.getdictvalue_w(self, 'exitfunc')
if w_exitfunc is not None:
self.call_function(w_exitfunc)
from pypy.interpreter.module import Module
for w_modname in self.unpackiterable(
self.sys.get('builtin_module_names')):
modname = self.str_w(w_modname)
mod = self.interpclass_w(self.getbuiltinmodule(modname))
if isinstance(mod, Module):
mod.shutdown(self)
if self.config.objspace.std.withdictmeasurement:
from pypy.objspace.std.dictmultiobject import report
report()
if self.config.objspace.logbytecodes:
self.reportbytecodecounts()
if self.config.objspace.std.logspaceoptypes:
for s in self.FrameClass._space_op_types:
print s
def reportbytecodecounts(self):
os.write(2, "Starting bytecode report.\n")
fd = os.open('bytecode.txt', os.O_CREAT|os.O_WRONLY|os.O_TRUNC, 0644)
os.write(fd, "bytecodecounts = {\n")
for opcode in range(len(self.bytecodecounts)):
count = self.bytecodecounts[opcode]
if not count:
continue
os.write(fd, " %s: %s,\n" % (opcode, count))
os.write(fd, "}\n")
os.write(fd, "bytecodetransitioncount = {\n")
for opcode, probs in self.bytecodetransitioncount.iteritems():
os.write(fd, " %s: {\n" % (opcode, ))
for nextcode, count in probs.iteritems():
os.write(fd, " %s: %s,\n" % (nextcode, count))
os.write(fd, " },\n")
os.write(fd, "}\n")
os.close(fd)
os.write(2, "Reporting done.\n")
def __repr__(self):
try:
return self._this_space_repr_
except AttributeError:
return self.__class__.__name__
def setbuiltinmodule(self, importname):
"""NOT_RPYTHON. load a lazy pypy/module and put it into sys.modules"""
import sys
fullname = "pypy.module.%s" % importname
Module = __import__(fullname,
None, None, ["Module"]).Module
if Module.applevel_name is not None:
name = Module.applevel_name
else:
name = importname
w_name = self.wrap(name)
w_mod = self.wrap(Module(self, w_name))
w_modules = self.sys.get('modules')
self.setitem(w_modules, w_name, w_mod)
return name
def getbuiltinmodule(self, name):
w_name = self.wrap(name)
w_modules = self.sys.get('modules')
return self.getitem(w_modules, w_name)
def get_builtinmodule_to_install(self):
"""NOT_RPYTHON"""
try:
return self._builtinmodule_list
except AttributeError:
pass
modules = []
# You can enable more modules by specifying --usemodules=xxx,yyy
for name, value in self.config.objspace.usemodules:
if value and name not in modules:
modules.append(name)
# a bit of custom logic: time2 or rctime take precedence over time
# XXX this could probably be done as a "requires" in the config
if ('time2' in modules or 'rctime' in modules) and 'time' in modules:
modules.remove('time')
import pypy
if not self.config.objspace.nofaking:
for modname in self.ALL_BUILTIN_MODULES:
if not (os.path.exists(
os.path.join(os.path.dirname(pypy.__file__),
'lib', modname+'.py'))):
modules.append('faked+'+modname)
self._builtinmodule_list = modules
return self._builtinmodule_list
ALL_BUILTIN_MODULES = [
'posix', 'nt', 'os2', 'mac', 'ce', 'riscos',
'math', 'array', 'select',
'_random', '_sre', 'time', '_socket', 'errno',
'unicodedata',
'parser', 'fcntl', '_codecs', 'binascii'
]
def make_builtins(self):
"NOT_RPYTHON: only for initializing the space."
from pypy.module.sys import Module
w_name = self.wrap('sys')
self.sys = Module(self, w_name)
w_modules = self.sys.get('modules')
self.setitem(w_modules, w_name, self.wrap(self.sys))
from pypy.module.__builtin__ import Module
w_name = self.wrap('__builtin__')
self.builtin = Module(self, w_name)
w_builtin = self.wrap(self.builtin)
self.setitem(w_modules, w_name, w_builtin)
self.setitem(self.builtin.w_dict, self.wrap('__builtins__'), w_builtin)
bootstrap_modules = ['sys', '__builtin__', 'exceptions']
installed_builtin_modules = bootstrap_modules[:]
# initialize with "bootstrap types" from objspace (e.g. w_None)
for name, value in self.__dict__.items():
if name.startswith('w_') and not name.endswith('Type'):
name = name[2:]
#print "setitem: space instance %-20s into builtins" % name
self.setitem(self.builtin.w_dict, self.wrap(name), value)
# install mixed and faked modules and set builtin_module_names on sys
for mixedname in self.get_builtinmodule_to_install():
if (mixedname not in bootstrap_modules
and not mixedname.startswith('faked+')):
self.install_mixedmodule(mixedname, installed_builtin_modules)
for mixedname in self.get_builtinmodule_to_install():
if mixedname.startswith('faked+'):
modname = mixedname[6:]
self.install_faked_module(modname, installed_builtin_modules)
installed_builtin_modules.sort()
w_builtin_module_names = self.newtuple(
[self.wrap(fn) for fn in installed_builtin_modules])
# force this value into the dict without unlazyfying everything
self.setitem(self.sys.w_dict, self.wrap('builtin_module_names'),
w_builtin_module_names)
def install_mixedmodule(self, mixedname, installed_builtin_modules):
"""NOT_RPYTHON"""
modname = self.setbuiltinmodule(mixedname)
if modname:
assert modname not in installed_builtin_modules, (
"duplicate interp-level module enabled for the "
"app-level module %r" % (modname,))
installed_builtin_modules.append(modname)
def load_cpython_module(self, modname):
"NOT_RPYTHON. Steal a module from CPython."
cpy_module = __import__(modname, {}, {}, ['*'])
return cpy_module
def install_faked_module(self, modname, installed_builtin_modules):
"""NOT_RPYTHON"""
if modname in installed_builtin_modules:
return
try:
module = self.load_cpython_module(modname)
except ImportError:
return
else:
w_modules = self.sys.get('modules')
self.setitem(w_modules, self.wrap(modname), self.wrap(module))
installed_builtin_modules.append(modname)
def setup_builtin_modules(self):
"NOT_RPYTHON: only for initializing the space."
from pypy.interpreter.module import Module
for w_modname in self.unpackiterable(self.sys.get('builtin_module_names')):
modname = self.unwrap(w_modname)
mod = self.getbuiltinmodule(modname)
if isinstance(mod, Module):
mod.setup_after_space_initialization()
def initialize(self):
"""NOT_RPYTHON: Abstract method that should put some minimal
content into the w_builtins."""
def enter_cache_building_mode(self):
"hook for the flow object space"
def leave_cache_building_mode(self, val):
"hook for the flow object space"
def getexecutioncontext(self):
"Return what we consider to be the active execution context."
# Important: the annotator must not see a prebuilt ExecutionContext
# for reasons related to the specialization of the framestack attribute
# so we make sure that the threadlocals never *have* an
# ExecutionContext during translation.
if self.config.translating and not we_are_translated():
assert self.threadlocals.getvalue() is None, (
"threadlocals got an ExecutionContext during translation!")
try:
return self._ec_during_translation
except AttributeError:
ec = self.createexecutioncontext()
self._ec_during_translation = ec
return ec
# normal case follows. The 'thread' module installs a real
# thread-local object in self.threadlocals, so this builds
# and caches a new ec in each thread.
ec = self.threadlocals.getvalue()
if ec is None:
ec = self.createexecutioncontext()
self.threadlocals.setvalue(ec)
return ec
def _freeze_(self):
return True
def createexecutioncontext(self):
"Factory function for execution contexts."
return ExecutionContext(self)
def createcompiler(self):
"Factory function creating a compiler object."
# XXX simple selection logic for now
try:
return self.default_compiler
except AttributeError:
if self.config.objspace.compiler == 'cpython':
compiler = CPythonCompiler(self)
elif self.config.objspace.compiler == 'ast':
compiler = PythonAstCompiler(self)
else:
raise ValueError('unknown --compiler option value: %r' % (
self.config.objspace.compiler,))
self.default_compiler = compiler
return compiler
def createframe(self, code, w_globals, closure=None):
"Create an empty PyFrame suitable for this code object."
return self.FrameClass(self, code, w_globals, closure)
def allocate_lock(self):
"""Return an interp-level Lock object if threads are enabled,
and a dummy object if they are not."""
if self.config.objspace.usemodules.thread:
# we use a sub-function to avoid putting the 'import' statement
# here, where the flow space would see it even if thread=False
return self.__allocate_lock()
else:
return dummy_lock
def __allocate_lock(self):
from pypy.module.thread.ll_thread import allocate_lock, error
try:
return allocate_lock()
except error:
raise OperationError(self.w_RuntimeError,
self.wrap("out of resources"))
# Following is a friendly interface to common object space operations
# that can be defined in term of more primitive ones. Subclasses
# may also override specific functions for performance.
#def is_(self, w_x, w_y): -- not really useful. Must be subclassed
# "'x is y'."
# w_id_x = self.id(w_x)
# w_id_y = self.id(w_y)
# return self.eq(w_id_x, w_id_y)
def not_(self, w_obj):
return self.wrap(not self.is_true(w_obj))
def eq_w(self, w_obj1, w_obj2):
"""shortcut for space.is_true(space.eq(w_obj1, w_obj2))"""
return self.is_w(w_obj1, w_obj2) or self.is_true(self.eq(w_obj1, w_obj2))
def is_w(self, w_obj1, w_obj2):
"""shortcut for space.is_true(space.is_(w_obj1, w_obj2))"""
return self.is_true(self.is_(w_obj1, w_obj2))
def hash_w(self, w_obj):
"""shortcut for space.int_w(space.hash(w_obj))"""
return self.int_w(self.hash(w_obj))
def set_str_keyed_item(self, w_obj, w_key, w_value, shadows_type=True):
return self.setitem(w_obj, w_key, w_value)
def finditem(self, w_obj, w_key):
try:
return self.getitem(w_obj, w_key)
except OperationError, e:
if e.match(self, self.w_KeyError):
return None
raise
class ObjSpace(object):
"""Base class for the interpreter-level implementations of object spaces.
http://codespeak.net/pypy/dist/pypy/doc/objspace.html"""
full_exceptions = True # full support for exceptions (normalization & more)
def __init__(self, config=None):
"NOT_RPYTHON: Basic initialization of objects."
self.fromcache = InternalSpaceCache(self).getorbuild
self.threadlocals = ThreadLocals()
# set recursion limit
# sets all the internal descriptors
if config is None:
from pypy.config.pypyoption import get_pypy_config
config = get_pypy_config(translating=False)
self.config = config
# import extra modules for side-effects
import pypy.interpreter.nestedscope # register *_DEREF bytecodes
self.interned_strings = {}
self.actionflag = ActionFlag() # changed by the signal module
self.user_del_action = UserDelAction(self)
self.frame_trace_action = FrameTraceAction(self)
self.actionflag.register_action(self.user_del_action)
self.actionflag.register_action(self.frame_trace_action)
from pypy.interpreter.pyframe import PyFrame
self.FrameClass = PyFrame # can be overridden to a subclass
# if self.config.objspace.logbytecodes:
# self.bytecodecounts = {}
self.initialize()
def startup(self):
# To be called before using the space
# Initialize all builtin modules
from pypy.interpreter.module import Module
for w_modname in self.unpackiterable(
self.sys.get('builtin_module_names')):
modname = self.str_w(w_modname)
mod = self.interpclass_w(self.getbuiltinmodule(modname))
if isinstance(mod, Module):
mod.startup(self)
def finish(self):
w_exitfunc = self.sys.getdictvalue_w(self, 'exitfunc')
if w_exitfunc is not None:
self.call_function(w_exitfunc)
from pypy.interpreter.module import Module
for w_modname in self.unpackiterable(
self.sys.get('builtin_module_names')):
modname = self.str_w(w_modname)
mod = self.interpclass_w(self.getbuiltinmodule(modname))
if isinstance(mod, Module):
mod.shutdown(self)
if self.config.objspace.std.withdictmeasurement:
from pypy.objspace.std.dictmultiobject import report
report()
if self.config.objspace.logbytecodes:
self.reportbytecodecounts()
if self.config.objspace.std.logspaceoptypes:
for s in self.FrameClass._space_op_types:
print s
def reportbytecodecounts(self):
os.write(2, "Starting bytecode report.\n")
fd = os.open('bytecode.txt', os.O_CREAT | os.O_WRONLY | os.O_TRUNC,
0644)
for opcode, count in self.bytecodecounts.items():
os.write(fd, str(opcode) + ", " + str(count) + "\n")
os.close(fd)
os.write(2, "Reporting done.\n")
def __repr__(self):
try:
return self._this_space_repr_
except AttributeError:
return self.__class__.__name__
def setbuiltinmodule(self, importname):
"""NOT_RPYTHON. load a lazy pypy/module and put it into sys.modules"""
import sys
fullname = "pypy.module.%s" % importname
Module = __import__(fullname, None, None, ["Module"]).Module
if Module.applevel_name is not None:
name = Module.applevel_name
else:
name = importname
w_name = self.wrap(name)
w_mod = self.wrap(Module(self, w_name))
w_modules = self.sys.get('modules')
self.setitem(w_modules, w_name, w_mod)
return name
def getbuiltinmodule(self, name):
w_name = self.wrap(name)
w_modules = self.sys.get('modules')
return self.getitem(w_modules, w_name)
def get_builtinmodule_to_install(self):
"""NOT_RPYTHON"""
try:
return self._builtinmodule_list
except AttributeError:
pass
modules = []
# You can enable more modules by specifying --usemodules=xxx,yyy
for name, value in self.config.objspace.usemodules:
if value and name not in modules:
modules.append(name)
# a bit of custom logic: time2 or rctime take precedence over time
# XXX this could probably be done as a "requires" in the config
if ('time2' in modules or 'rctime' in modules) and 'time' in modules:
modules.remove('time')
import pypy
if not self.config.objspace.nofaking:
for modname in self.ALL_BUILTIN_MODULES:
if not (os.path.exists(
os.path.join(os.path.dirname(pypy.__file__), 'lib',
modname + '.py'))):
modules.append('faked+' + modname)
self._builtinmodule_list = modules
return self._builtinmodule_list
ALL_BUILTIN_MODULES = [
'posix', 'nt', 'os2', 'mac', 'ce', 'riscos', 'math', 'array', 'select',
'_random', '_sre', 'time', '_socket', 'errno', 'unicodedata', 'parser',
'fcntl', '_codecs', 'binascii'
]
def make_builtins(self):
"NOT_RPYTHON: only for initializing the space."
from pypy.module.sys import Module
w_name = self.wrap('sys')
self.sys = Module(self, w_name)
w_modules = self.sys.get('modules')
self.setitem(w_modules, w_name, self.wrap(self.sys))
from pypy.module.__builtin__ import Module
w_name = self.wrap('__builtin__')
self.builtin = Module(self, w_name)
w_builtin = self.wrap(self.builtin)
self.setitem(w_modules, w_name, w_builtin)
self.setitem(self.builtin.w_dict, self.wrap('__builtins__'), w_builtin)
bootstrap_modules = ['sys', '__builtin__', 'exceptions']
installed_builtin_modules = bootstrap_modules[:]
# initialize with "bootstrap types" from objspace (e.g. w_None)
for name, value in self.__dict__.items():
if name.startswith('w_') and not name.endswith('Type'):
name = name[2:]
#print "setitem: space instance %-20s into builtins" % name
self.setitem(self.builtin.w_dict, self.wrap(name), value)
# install mixed and faked modules and set builtin_module_names on sys
for mixedname in self.get_builtinmodule_to_install():
if (mixedname not in bootstrap_modules
and not mixedname.startswith('faked+')):
self.install_mixedmodule(mixedname, installed_builtin_modules)
for mixedname in self.get_builtinmodule_to_install():
if mixedname.startswith('faked+'):
modname = mixedname[6:]
self.install_faked_module(modname, installed_builtin_modules)
installed_builtin_modules.sort()
w_builtin_module_names = self.newtuple(
[self.wrap(fn) for fn in installed_builtin_modules])
# force this value into the dict without unlazyfying everything
self.setitem(self.sys.w_dict, self.wrap('builtin_module_names'),
w_builtin_module_names)
def install_mixedmodule(self, mixedname, installed_builtin_modules):
"""NOT_RPYTHON"""
modname = self.setbuiltinmodule(mixedname)
if modname:
assert modname not in installed_builtin_modules, (
"duplicate interp-level module enabled for the "
"app-level module %r" % (modname, ))
installed_builtin_modules.append(modname)
def load_cpython_module(self, modname):
"NOT_RPYTHON. Steal a module from CPython."
cpy_module = __import__(modname, {}, {}, ['*'])
return cpy_module
def install_faked_module(self, modname, installed_builtin_modules):
"""NOT_RPYTHON"""
if modname in installed_builtin_modules:
return
try:
module = self.load_cpython_module(modname)
except ImportError:
return
else:
w_modules = self.sys.get('modules')
self.setitem(w_modules, self.wrap(modname), self.wrap(module))
installed_builtin_modules.append(modname)
def setup_builtin_modules(self):
"NOT_RPYTHON: only for initializing the space."
from pypy.interpreter.module import Module
for w_modname in self.unpackiterable(
self.sys.get('builtin_module_names')):
modname = self.unwrap(w_modname)
mod = self.getbuiltinmodule(modname)
if isinstance(mod, Module):
mod.setup_after_space_initialization()
def initialize(self):
"""NOT_RPYTHON: Abstract method that should put some minimal
content into the w_builtins."""
def enter_cache_building_mode(self):
"hook for the flow object space"
def leave_cache_building_mode(self, val):
"hook for the flow object space"
def getexecutioncontext(self):
"Return what we consider to be the active execution context."
# Important: the annotator must not see a prebuilt ExecutionContext
# for reasons related to the specialization of the framestack attribute
# so we make sure that the threadlocals never *have* an
# ExecutionContext during translation.
if self.config.translating and not we_are_translated():
assert self.threadlocals.getvalue() is None, (
"threadlocals got an ExecutionContext during translation!")
try:
return self._ec_during_translation
except AttributeError:
ec = self.createexecutioncontext()
self._ec_during_translation = ec
return ec
# normal case follows. The 'thread' module installs a real
# thread-local object in self.threadlocals, so this builds
# and caches a new ec in each thread.
ec = self.threadlocals.getvalue()
if ec is None:
ec = self.createexecutioncontext()
self.threadlocals.setvalue(ec)
return ec
def _freeze_(self):
return True
def createexecutioncontext(self):
"Factory function for execution contexts."
return ExecutionContext(self)
def createcompiler(self):
"Factory function creating a compiler object."
# XXX simple selection logic for now
try:
return self.default_compiler
except AttributeError:
if self.config.objspace.compiler == 'cpython':
compiler = CPythonCompiler(self)
elif self.config.objspace.compiler == 'ast':
compiler = PythonAstCompiler(self)
else:
raise ValueError('unknown --compiler option value: %r' %
(self.config.objspace.compiler, ))
self.default_compiler = compiler
return compiler
def createframe(self, code, w_globals, closure=None):
"Create an empty PyFrame suitable for this code object."
return self.FrameClass(self, code, w_globals, closure)
def allocate_lock(self):
"""Return an interp-level Lock object if threads are enabled,
and a dummy object if they are not."""
if self.config.objspace.usemodules.thread:
# we use a sub-function to avoid putting the 'import' statement
# here, where the flow space would see it even if thread=False
return self.__allocate_lock()
else:
return dummy_lock
def __allocate_lock(self):
from pypy.module.thread.ll_thread import allocate_lock, error
try:
return allocate_lock()
except error:
raise OperationError(self.w_RuntimeError,
self.wrap("out of resources"))
# Following is a friendly interface to common object space operations
# that can be defined in term of more primitive ones. Subclasses
# may also override specific functions for performance.
#def is_(self, w_x, w_y): -- not really useful. Must be subclassed
# "'x is y'."
# w_id_x = self.id(w_x)
# w_id_y = self.id(w_y)
# return self.eq(w_id_x, w_id_y)
def not_(self, w_obj):
return self.wrap(not self.is_true(w_obj))
def eq_w(self, w_obj1, w_obj2):
"""shortcut for space.is_true(space.eq(w_obj1, w_obj2))"""
return self.is_w(w_obj1, w_obj2) or self.is_true(
self.eq(w_obj1, w_obj2))
def is_w(self, w_obj1, w_obj2):
"""shortcut for space.is_true(space.is_(w_obj1, w_obj2))"""
return self.is_true(self.is_(w_obj1, w_obj2))
def hash_w(self, w_obj):
"""shortcut for space.int_w(space.hash(w_obj))"""
return self.int_w(self.hash(w_obj))
def set_str_keyed_item(self, w_obj, w_key, w_value, shadows_type=True):
return self.setitem(w_obj, w_key, w_value)
def finditem(self, w_obj, w_key):
try:
return self.getitem(w_obj, w_key)
except OperationError, e:
if e.match(self, self.w_KeyError):
return None
raise