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from pypy.interpreter import main, error
import sys
import code
import time
class Completer:
""" Stolen mostly from CPython's rlcompleter.py """
def __init__(self, space, w_globals):
self.space = space
self.w_globals = w_globals
def complete(self, text, state):
if state == 0:
if "." in text:
self.matches = self.attr_matches(text)
else:
self.matches = self.global_matches(text)
try:
return self.matches[state]
except IndexError:
return None
def global_matches(self, text):
import keyword
w_res = self.space.call_method(self.w_globals, "keys")
namespace_keys = self.space.unwrap(w_res)
w_res = self.space.call_method(self.space.builtin.getdict(self.space),
"keys")
builtin_keys = self.space.unwrap(w_res)
matches = []
n = len(text)
for l in [namespace_keys, builtin_keys, keyword.kwlist]:
for word in l:
if word[:n] == text and word != "__builtins__":
matches.append(word)
return matches
def attr_matches(self, text):
import re
m = re.match(r"(\w+(\.\w+)*)\.(\w*)", text)
if not m:
return
expr, attr = m.group(1, 3)
s = self.space
w_obj = s.eval(expr, self.w_globals, self.w_globals)
words = self.get_words(w_obj)
w_clz = s.getattr(w_obj, s.wrap("__class__"))
words += self.get_class_members(w_clz)
matches = []
n = len(attr)
for word in words:
if word[:n] == attr and word != "__builtins__":
matches.append("%s.%s" % (expr, word))
return matches
def get_words(self, w_clz):
s = self.space
w_dir_func = s.builtin.get("dir")
w_res = s.call_function(w_dir_func, w_clz)
return s.unwrap(w_res)
def get_class_members(self, w_clz):
s = self.space
words = self.get_words(w_clz)
try:
w_bases = s.getattr(w_clz, s.wrap("__bases__"))
bases_w = s.fixedview(w_bases)
except error.OperationError:
return words
for w_clz in bases_w:
words += self.get_class_members(w_clz)
return words
class PyPyConsole(code.InteractiveConsole):
def __init__(self, objspace, verbose=0, completer=False):
code.InteractiveConsole.__init__(self)
self.space = objspace
self.verbose = verbose
space = self.space
self.console_compiler_flags = 0
mainmodule = main.ensure__main__(space)
self.w_globals = mainmodule.w_dict
space.setitem(self.w_globals, space.newtext('__builtins__'), space.builtin)
if completer:
self.enable_command_line_completer()
# forbidden:
#space.exec_("__pytrace__ = 0", self.w_globals, self.w_globals)
space.setitem(self.w_globals, space.newtext('__pytrace__'),space.newint(0))
self.tracelevel = 0
self.console_locals = {}
def enable_command_line_completer(self):
try:
import readline
# Keep here to save windoze tears
readline.set_completer(Completer(self.space, self.w_globals).complete)
readline.parse_and_bind("tab: complete")
readline.set_history_length(25000)
try:
readline.read_history_file()
except IOError:
pass # guess it doesn't exit
import atexit
atexit.register(readline.write_history_file)
except:
pass
def interact(self, banner=None):
#banner = "Python %s in pypy\n%s / %s" % (
# sys.version, self.__class__.__name__,
# self.space.__class__.__name__)
major, minor, micro, tag, rev = self.space.unwrap(self.space.sys.get('pypy_version_info'))
elapsed = time.time() - self.space._starttime
version = "%d.%d.%d" % (major, minor, micro)
if tag != "final":
version += "-%s%d" %(tag, rev)
banner = "PyPy %s in %r on top of Python %s (startuptime: %.2f secs)" % (
version, self.space, sys.version.split()[0], elapsed)
code.InteractiveConsole.interact(self, banner)
def raw_input(self, prompt=""):
# add a character to the PyPy prompt so that you know where you
# are when you debug it with "python -i py.py"
try:
return code.InteractiveConsole.raw_input(self, prompt[0] + prompt)
except KeyboardInterrupt:
# fires into an interpreter-level console
print
banner = ("Python %s on %s\n" % (sys.version, sys.platform) +
"*** Entering interpreter-level console ***")
local = self.console_locals
# don't copy attributes that look like names that came
# from self.w_globals (itself the main offender) as they
# would then get copied back into the applevel namespace.
local.update(dict([(k,v) for (k, v) in self.__dict__.iteritems()
if not k.startswith('w_')]))
del local['locals']
for w_name in self.space.unpackiterable(self.w_globals):
local['w_' + self.space.text_w(w_name)] = (
self.space.getitem(self.w_globals, w_name))
code.interact(banner=banner, local=local)
# copy back 'w_' names
for name in local:
if name.startswith('w_'):
self.space.setitem(self.w_globals,
self.space.newtext(name[2:]),
local[name])
print '*** Leaving interpreter-level console ***'
raise
def runcode(self, code):
raise NotImplementedError
def runsource(self, source, ignored_filename="<input>", symbol="single"):
# the following hacked file name is recognized specially by error.py
compiler = self.space.getexecutioncontext().compiler
# CPython 2.6 turns console input into unicode
if isinstance(source, unicode):
source = source.encode(sys.stdin.encoding)
hacked_filename = '<inline>\n' + source
def doit():
# compile the provided input
code = compiler.compile_command(source, hacked_filename, symbol,
self.console_compiler_flags)
if code is None:
raise IncompleteInput
self.console_compiler_flags |= compiler.getcodeflags(code)
# execute it
self.settrace()
try:
code.exec_code(self.space, self.w_globals, self.w_globals)
finally:
self.unsettrace()
self.checktrace()
# run doit() in an exception-catching box
try:
main.run_toplevel(self.space, doit, verbose=self.verbose)
except IncompleteInput:
return 1
else:
return 0
def settrace(self):
if self.tracelevel:
ec = self.space.getexecutioncontext()
if not hasattr(self, '_orig_bytecode_only_trace'):
self._orig_bytecode_only_trace = ec.bytecode_only_trace
ec.bytecode_only_trace = self._do_bytecode_only_trace
def unsettrace(self):
if self.tracelevel:
ec = self.space.getexecutioncontext()
ec.bytecode_only_trace = self._orig_bytecode_only_trace
def _do_bytecode_only_trace(self, frame):
from pypy.tool.pydis import Bytecode, HAVE_ARGUMENT
if frame.hide():
return
self.unsettrace()
next_instr = frame.last_instr
opcode = ord(frame.pycode.co_code[next_instr])
oparg = 0
if opcode >= HAVE_ARGUMENT:
lo = ord(frame.pycode.co_code[next_instr+1])
hi = ord(frame.pycode.co_code[next_instr+2])
oparg = (hi * 256) | lo
class fake:
code = frame.pycode
bytecode = Bytecode(fake, next_instr, oparg, 0)
print '\t%-19s %s' % (str(frame.pycode.co_name) + ':',
bytecode.repr_with_space(self.space))
self.settrace()
def checktrace(self):
s = self.space
# Did we modify __pytrace__
tracelevel = s.int_w(s.getitem(self.w_globals,
s.wrap("__pytrace__")))
if self.tracelevel > 0 and tracelevel == 0:
self.unsettrace()
print "Tracing disabled"
if self.tracelevel == 0 and tracelevel > 0:
self.unsettrace()
print "Tracing enabled"
self.tracelevel = tracelevel
class IncompleteInput(Exception):
pass
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