control_flow_instructions.py 文件源码

def SETUP_WITH(self, instr):

        with_block = self.make_block(to=instr.to, inclusive=False)

        assert with_block.pop().opname == 'LOAD_CONST'
        assert with_block.pop().opname == 'POP_BLOCK'

        with_cleanup = self.ilst.pop(0)
        assert with_cleanup.opname == 'WITH_CLEANUP'
        end_finally = self.ilst.pop(0)
        assert end_finally.opname == 'END_FINALLY'


        with_ = self.decompile_block(with_block, stack_items=['WITH_BLOCK']).stmnt()

        if isinstance(with_[0], _ast.Assign) and with_[0].value == 'WITH_BLOCK':
            assign = with_.pop(0)
            as_ = assign.targets[0]
        else:
            as_ = None

        body = with_

        expr = self.ast_stack.pop()

        with_ = _ast.With(context_expr=expr, optional_vars=as_, body=body,
                          lineno=instr.lineno, col_offset=0)

        self.ast_stack.append(with_)