def POP_JUMP_IF_FALSE(self, instr):
#print("POP_JUMP_IF_FALSE")
left = self.ast_stack.pop()
and_block = self.gather_jumps(instr)
#This is an IF statement
if and_block[-1].opname in ['JUMP_FORWARD', 'JUMP_ABSOLUTE', 'RETURN_VALUE']:
#this happens if the function was going to return anyway
if and_block[-1].opname == 'RETURN_VALUE':
JUMP_FORWARD = Instruction(and_block[-1].i, 110, lineno=0)
JUMP_FORWARD.arg = instr.to
and_block.append(JUMP_FORWARD)
#print()
#print("make_if", instr, left, and_block)
#print()
self.make_if(instr, left, and_block)
return
else: #This is an expression
hi = self.process_logic([instr] + and_block)
ast_ = self.logic_ast(instr, left, hi)
self.ast_stack.append(ast_)
def disassembler(co, lasti=-1):
"""Disassemble a code object.
:param co: code object
:param lasti: internal
:yields: Instructions.
"""
code = co.co_code
labels = findlabels(code)
linestarts = dict(findlinestarts(co))
n = len(code)
i = 0
extended_arg = 0
lineno = 0
free = None
while i < n:
c = code[i]
op = co_ord(c)
if i in linestarts:
lineno = linestarts[i]
instr = Instruction(i=i, op=op, lineno=lineno)
instr.linestart = i in linestarts
if i == lasti:
instr.lasti = True
else:
instr.lasti = False
if i in labels:
instr.label = True
else:
instr.label = False
i = i + 1
if op >= opcode.HAVE_ARGUMENT:
oparg = co_ord(code[i]) + co_ord(code[i + 1]) * 256 + extended_arg
instr.oparg = oparg
extended_arg = 0
i = i + 2
if op == opcode.EXTENDED_ARG:
extended_arg = oparg * 65536
instr.extended_arg = extended_arg
if op in opcode.hasconst:
instr.arg = co.co_consts[oparg]
elif op in opcode.hasname:
instr.arg = co.co_names[oparg]
elif op in opcode.hasjrel:
instr.arg = i + oparg
elif op in opcode.haslocal:
instr.arg = co.co_varnames[oparg]
elif op in opcode.hascompare:
instr.arg = opcode.cmp_op[oparg]
elif op in opcode.hasfree:
if free is None:
free = co.co_cellvars + co.co_freevars
instr.arg = free[oparg]
yield instr
def disassembler(co, lasti= -1):
"""Disassemble a code object.
:param co: code object
:param lasti: internal
:yields: Instructions.
"""
code = co.co_code
labels = findlabels(code)
linestarts = dict(findlinestarts(co))
n = len(code)
i = 0
extended_arg = 0
lineno = 0
free = None
while i < n:
c = code[i]
op = co_ord(c)
if i in linestarts:
lineno = linestarts[i]
instr = Instruction(i=i, op=op, lineno=lineno)
instr.linestart = i in linestarts
if i == lasti:
instr.lasti = True
else:
instr.lasti = False
if i in labels:
instr.label = True
else:
instr.label = False
i = i + 1
if op >= opcode.HAVE_ARGUMENT:
oparg = co_ord(code[i]) + co_ord(code[i + 1]) * 256 + extended_arg
instr.oparg = oparg
extended_arg = 0
i = i + 2
if op == opcode.EXTENDED_ARG:
extended_arg = oparg * 65536
instr.extended_arg = extended_arg
if op in opcode.hasconst:
instr.arg = co.co_consts[oparg]
elif op in opcode.hasname:
instr.arg = co.co_names[oparg]
elif op in opcode.hasjrel:
instr.arg = i + oparg
elif op in opcode.haslocal:
instr.arg = co.co_varnames[oparg]
elif op in opcode.hascompare:
instr.arg = opcode.cmp_op[oparg]
elif op in opcode.hasfree:
if free is None:
free = co.co_cellvars + co.co_freevars
instr.arg = free[oparg]
yield instr
