_product.py 文件源码

def translate_pat_Tuple(self, ctx, pat, scrutinee_trans):
        scrutinee_trans_copy = astx.copy_node(scrutinee_trans)
        elts = pat.elts
        idx = self.idx
        conditions = []
        binding_translations = _util.odict()
        for n, (elt, ty) in enumerate(zip(elts, idx.itervalues())):
            elt_scrutinee_trans = astx.make_Subscript_Num_Index(
                scrutinee_trans_copy,
                n)
            elt_condition, elt_binding_translations = ctx.translate_pat(
                elt, elt_scrutinee_trans)
            conditions.append(elt_condition)
            binding_translations.update(elt_binding_translations)
        condition = ast.BoolOp(
            op=ast.And(),
            values=conditions)
        return (condition, binding_translations)