sim_lib_net_core/error.rs
1//! The NetError type for net-core parsing failures.
2
3/// Errors produced by the net-core parsing primitives.
4///
5/// These describe malformed or oversize wire data only. They carry no I/O or
6/// application context; callers translate them into their own error domain.
7#[derive(Clone, Debug, PartialEq, Eq)]
8pub enum NetError {
9 /// The URL did not contain a `scheme://` separator, or was otherwise
10 /// structurally malformed (e.g. missing host).
11 MalformedUrl(String),
12 /// The URL scheme is not one this crate recognizes for default-port
13 /// resolution.
14 UnsupportedScheme(String),
15 /// The URL scheme did not match the scheme a caller required (via
16 /// [`parse_url_for_scheme`](crate::parse_url_for_scheme)).
17 UnexpectedScheme {
18 /// The scheme the caller required.
19 expected: String,
20 /// The scheme actually found in the URL.
21 found: String,
22 },
23 /// The URL port component could not be parsed as a `u16`.
24 InvalidPort(String),
25 /// The HTTP response head (status line + headers) was malformed.
26 InvalidHead(String),
27 /// A length-prefixed or buffered payload exceeded the caller's size limit.
28 OversizeBody(usize),
29}
30
31impl core::fmt::Display for NetError {
32 fn fmt(&self, formatter: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
33 match self {
34 Self::MalformedUrl(url) => write!(formatter, "malformed url {url}"),
35 Self::UnsupportedScheme(scheme) => write!(formatter, "unsupported url scheme {scheme}"),
36 Self::UnexpectedScheme { expected, found } => {
37 write!(formatter, "expected url scheme {expected}, found {found}")
38 }
39 Self::InvalidPort(url) => write!(formatter, "invalid port in url {url}"),
40 Self::InvalidHead(detail) => write!(formatter, "invalid http head: {detail}"),
41 Self::OversizeBody(limit) => {
42 write!(formatter, "payload exceeded size limit of {limit} bytes")
43 }
44 }
45 }
46}
47
48impl core::error::Error for NetError {}