Struct WarnEvent 

pub struct WarnEvent<'a> {
    pub kind: WarnKind,
    pub deprecation: bool,
    pub deprecation_id: &'a str,
    pub message: &'a str,
    pub formatted: &'a str,
    pub url: &'a str,
    pub line: usize,
}

A @warn / @debug / deprecation diagnostic delivered to an embedder’s WarnHandler (dart-sass logger).

Fields

kind: WarnKind

Warning vs debug.

deprecation: bool

True for a deprecation warning.

deprecation_id: &'a str

The deprecation id (e.g. "slash-div"), or "" when not a deprecation.

message: &'a str

The raw message text (the @warn/@debug value, or deprecation message).

formatted: &'a str

The full dart-style block sasso would otherwise print to stderr (header + snippet + stack trace), for a faithful default logger.

url: &'a str

The source URL for the diagnostic’s span; "" when not available.

line: usize

The 1-based line for the diagnostic’s span; 0 when not available.