_string.py 文件源码

def syn_Compare(self, ctx, e):
        left, ops, comparators = e.left, e.ops, e.comparators
        for op in ops:
            if not isinstance(op, (ast.Eq, ast.NotEq, ast.Is, ast.IsNot, ast.In, ast.NotIn)):
                raise _errors.TyError("Invalid comparison operator on strings.", e)
        for e_ in _util.tpl_cons(left, comparators):
            if hasattr(e_, 'match'): 
                continue # already synthesized
            ctx.ana(e_, self)
        return _boolean.boolean