Enum ConnectError 

pub enum ConnectError {
    InvalidUrl,
    InvalidScheme(String),
    LaunchError(String),
    ConnectionFailed(String),
    Timeout(String),
}

连接阶段错误(Browser::connect 入口返回)。

五种变体覆盖 Plan MD 要求的全部错误码:

• ConnectError::InvalidUrl: URL 解析失败(空串、缺 ://、非 UTF-8 等)
• ConnectError::InvalidScheme: scheme 已识别但不在 {memory, ws, wss, http, https} 集合
• ConnectError::ConnectionFailed: TCP/WebSocket 握手失败

@trace REQ-BAO-API-001 [level:library]

Variants

InvalidUrl

URL 解析失败(空串、缺 ://、非 UTF-8 等)。

InvalidScheme(String)

URL scheme 不支持。携带出错的 scheme 字符串便于诊断。

LaunchError(String)

外部浏览器进程拉起失败(如 Chrome 二进制不存在)。

ConnectionFailed(String)

连接失败(TCP 拒绝、WebSocket 握手失败等)。

Timeout(String)

连接超时。

Trait Implementations

impl Debug for ConnectError

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

Formats the value using the given formatter.

impl Display for ConnectError

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

Formats the value using the given formatter.

impl Error for ConnectError

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<ConnectError> for CdpError

fn from(err: ConnectError) -> CdpError

Converts to this type from the input type.

impl From<Error> for ConnectError

fn from(err: Error) -> ConnectError

Converts to this type from the input type.