Enum ParseError 

pub enum ParseError {
    InvalidPath(String),
    MissingParameter(String),
    TypeConversion(String),
    InvalidQuery(String),
    UrlEncoding(String),
    SegmentCountMismatch {
        expected: usize,
        actual: usize,
    },
    SegmentMismatch {
        expected: String,
        actual: String,
        position: usize,
    },
}

解析错误类型

表示在路由解析过程中可能出现的各种错误情况

Variants

InvalidPath(String)

无效的路径格式

当路径不符合预期格式时返回此错误

MissingParameter(String)

缺少必需的参数

当路径中缺少必需的参数时返回此错误

TypeConversion(String)

类型转换失败

当无法将字符串参数转换为目标类型时返回此错误

InvalidQuery(String)

无效的查询参数

当查询参数格式不正确时返回此错误

UrlEncoding(String)

URL 编码/解码错误

当 URL 编码或解码失败时返回此错误

SegmentCountMismatch

路径段数量不匹配

当实际路径段数量与模式不匹配时返回此错误

Fields

expected: usize

actual: usize

SegmentMismatch

路径段内容不匹配

当路径段的字面量内容不匹配时返回此错误

Fields

expected: String

actual: String

position: usize

Implementations

impl ParseError

错误构造辅助函数

pub fn invalid_path<S: Into<String>>(msg: S) -> Self

创建无效路径错误

pub fn missing_parameter<S: Into<String>>(param: S) -> Self

创建缺少参数错误

pub fn type_conversion<S: Into<String>>(msg: S) -> Self

创建类型转换错误

pub fn invalid_query<S: Into<String>>(msg: S) -> Self

创建无效查询错误

pub fn url_encoding<S: Into<String>>(msg: S) -> Self

创建 URL 编码错误

pub fn segment_count_mismatch(expected: usize, actual: usize) -> Self

创建段数量不匹配错误

pub fn segment_mismatch<S: Into<String>>( expected: S, actual: S, position: usize, ) -> Self

创建段内容不匹配错误

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> ParseError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Error for ParseError

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 PartialEq for ParseError

fn eq(&self, other: &ParseError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ParseError