Enum Error 

pub enum Error {
    FontLoad(String),
    Parse {
        line: usize,
        msg: String,
    },
    Image(String),
    Encode(String),
    Layout(String),
}

排版引擎错误。

Variants

FontLoad(String)

字体栈为空 / 字体数据损坏。

Parse

标记语言语法错误。

Fields

line: usize

出错的行号(从 1 起)。

msg: String

错误说明。

Image(String)

内嵌图片解码失败 / @名字 未提供。

Encode(String)

图片编码失败。

Layout(String)

版式异常(如宽度 ≤ 0、画布尺寸非法)。

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.