--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/dis.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,223 @@
+"""Disassembler of Python byte code into mnemonics."""
+
+import sys
+import types
+
+from opcode import *
+from opcode import __all__ as _opcodes_all
+
+__all__ = ["dis","disassemble","distb","disco"] + _opcodes_all
+del _opcodes_all
+
+def dis(x=None):
+ """Disassemble classes, methods, functions, or code.
+
+ With no argument, disassemble the last traceback.
+
+ """
+ if x is None:
+ distb()
+ return
+ if type(x) is types.InstanceType:
+ x = x.__class__
+ if hasattr(x, 'im_func'):
+ x = x.im_func
+ if hasattr(x, 'func_code'):
+ x = x.func_code
+ if hasattr(x, '__dict__'):
+ items = x.__dict__.items()
+ items.sort()
+ for name, x1 in items:
+ if type(x1) in (types.MethodType,
+ types.FunctionType,
+ types.CodeType,
+ types.ClassType):
+ print "Disassembly of %s:" % name
+ try:
+ dis(x1)
+ except TypeError, msg:
+ print "Sorry:", msg
+ print
+ elif hasattr(x, 'co_code'):
+ disassemble(x)
+ elif isinstance(x, str):
+ disassemble_string(x)
+ else:
+ raise TypeError, \
+ "don't know how to disassemble %s objects" % \
+ type(x).__name__
+
+def distb(tb=None):
+ """Disassemble a traceback (default: last traceback)."""
+ if tb is None:
+ try:
+ tb = sys.last_traceback
+ except AttributeError:
+ raise RuntimeError, "no last traceback to disassemble"
+ while tb.tb_next: tb = tb.tb_next
+ disassemble(tb.tb_frame.f_code, tb.tb_lasti)
+
+def disassemble(co, lasti=-1):
+ """Disassemble a code object."""
+ code = co.co_code
+ labels = findlabels(code)
+ linestarts = dict(findlinestarts(co))
+ n = len(code)
+ i = 0
+ extended_arg = 0
+ free = None
+ while i < n:
+ c = code[i]
+ op = ord(c)
+ if i in linestarts:
+ if i > 0:
+ print
+ print "%3d" % linestarts[i],
+ else:
+ print ' ',
+
+ if i == lasti: print '-->',
+ else: print ' ',
+ if i in labels: print '>>',
+ else: print ' ',
+ print repr(i).rjust(4),
+ print opname[op].ljust(20),
+ i = i+1
+ if op >= HAVE_ARGUMENT:
+ oparg = ord(code[i]) + ord(code[i+1])*256 + extended_arg
+ extended_arg = 0
+ i = i+2
+ if op == EXTENDED_ARG:
+ extended_arg = oparg*65536L
+ print repr(oparg).rjust(5),
+ if op in hasconst:
+ print '(' + repr(co.co_consts[oparg]) + ')',
+ elif op in hasname:
+ print '(' + co.co_names[oparg] + ')',
+ elif op in hasjrel:
+ print '(to ' + repr(i + oparg) + ')',
+ elif op in haslocal:
+ print '(' + co.co_varnames[oparg] + ')',
+ elif op in hascompare:
+ print '(' + cmp_op[oparg] + ')',
+ elif op in hasfree:
+ if free is None:
+ free = co.co_cellvars + co.co_freevars
+ print '(' + free[oparg] + ')',
+ print
+
+def disassemble_string(code, lasti=-1, varnames=None, names=None,
+ constants=None):
+ labels = findlabels(code)
+ n = len(code)
+ i = 0
+ while i < n:
+ c = code[i]
+ op = ord(c)
+ if i == lasti: print '-->',
+ else: print ' ',
+ if i in labels: print '>>',
+ else: print ' ',
+ print repr(i).rjust(4),
+ print opname[op].ljust(15),
+ i = i+1
+ if op >= HAVE_ARGUMENT:
+ oparg = ord(code[i]) + ord(code[i+1])*256
+ i = i+2
+ print repr(oparg).rjust(5),
+ if op in hasconst:
+ if constants:
+ print '(' + repr(constants[oparg]) + ')',
+ else:
+ print '(%d)'%oparg,
+ elif op in hasname:
+ if names is not None:
+ print '(' + names[oparg] + ')',
+ else:
+ print '(%d)'%oparg,
+ elif op in hasjrel:
+ print '(to ' + repr(i + oparg) + ')',
+ elif op in haslocal:
+ if varnames:
+ print '(' + varnames[oparg] + ')',
+ else:
+ print '(%d)' % oparg,
+ elif op in hascompare:
+ print '(' + cmp_op[oparg] + ')',
+ print
+
+disco = disassemble # XXX For backwards compatibility
+
+def findlabels(code):
+ """Detect all offsets in a byte code which are jump targets.
+
+ Return the list of offsets.
+
+ """
+ labels = []
+ n = len(code)
+ i = 0
+ while i < n:
+ c = code[i]
+ op = ord(c)
+ i = i+1
+ if op >= HAVE_ARGUMENT:
+ oparg = ord(code[i]) + ord(code[i+1])*256
+ i = i+2
+ label = -1
+ if op in hasjrel:
+ label = i+oparg
+ elif op in hasjabs:
+ label = oparg
+ if label >= 0:
+ if label not in labels:
+ labels.append(label)
+ return labels
+
+def findlinestarts(code):
+ """Find the offsets in a byte code which are start of lines in the source.
+
+ Generate pairs (offset, lineno) as described in Python/compile.c.
+
+ """
+ byte_increments = [ord(c) for c in code.co_lnotab[0::2]]
+ line_increments = [ord(c) for c in code.co_lnotab[1::2]]
+
+ lastlineno = None
+ lineno = code.co_firstlineno
+ addr = 0
+ for byte_incr, line_incr in zip(byte_increments, line_increments):
+ if byte_incr:
+ if lineno != lastlineno:
+ yield (addr, lineno)
+ lastlineno = lineno
+ addr += byte_incr
+ lineno += line_incr
+ if lineno != lastlineno:
+ yield (addr, lineno)
+
+def _test():
+ """Simple test program to disassemble a file."""
+ if sys.argv[1:]:
+ if sys.argv[2:]:
+ sys.stderr.write("usage: python dis.py [-|file]\n")
+ sys.exit(2)
+ fn = sys.argv[1]
+ if not fn or fn == "-":
+ fn = None
+ else:
+ fn = None
+ if fn is None:
+ f = sys.stdin
+ else:
+ f = open(fn)
+ source = f.read()
+ if fn is not None:
+ f.close()
+ else:
+ fn = "<stdin>"
+ code = compile(source, fn, "exec")
+ dis(code)
+
+if __name__ == "__main__":
+ _test()