Struct Warning 

#[non_exhaustive]
pub struct Warning {
    pub kind: WarningKind,
    pub location: Option<SourceLocation>,
}

A non-fatal condition detected during parsing.

Use Warning::source_location to map to a location for diagnostic rendering, and Warning::advice for help text mirroring Error::advice.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

kind: WarningKind

The specific non-fatal condition.

location: Option<SourceLocation>

Where the condition was detected, when known. Absent for warnings raised outside any source context (e.g. preprocessor configuration).

Implementations

impl Warning

pub fn source_location(&self) -> Option<&SourceLocation>

Source location for this warning, when available.

pub fn advice(&self) -> Option<&'static str>

Advice text mirroring Error::advice. Returns None when there is no canned guidance for this kind.

Trait Implementations

impl Debug for Warning

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

Formats the value using the given formatter.

impl Display for Warning

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

Formats the value using the given formatter.

impl PartialEq for Warning

fn eq(&self, other: &Warning) -> 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 Warning