Enum EvalError 

pub enum EvalError {
    Selector(String),
    Regex(String),
    JsonPath(String),
    Json(String),
    Unsupported(&'static str),
}

规则求值层错误。

Variants

Selector(String)

CSS 选择器非法。

Regex(String)

正则非法。

JsonPath(String)

JSONPath 查询失败。

Json(String)

待解析内容不是合法 JSON。

Unsupported(&'static str)

该 via 后端暂未启用(如 xpath)。

Trait Implementations

impl Debug for EvalError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for EvalError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for EvalError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<EvalError> for BookSourceError

fn from(source: EvalError) -> Self

Converts to this type from the input type.