Struct Note 

pub struct Note {
    pub message: String,
    pub range: Option<SourceRange>,
}

An extra remark attached to a Diagnostic.

A procedural macro has one span per diagnostic and no way to add a second one, so a note that refers to another place — the #define a macro came from, the first of two conflicting declarations — cannot point there. Its range is rendered into the message instead, as at line 5 for the macro’s own text or in include/foo.h:12 for an #included file; see Diagnostics::render. Messages are therefore phrased to be completed by that phrase (“macro ‘MAX’ defined”, not “macro ‘MAX’ defined here”).

Fields

message: String

The text of the note.

range: Option<SourceRange>

The place the note is about, if any.

Trait Implementations

impl Clone for Note

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Note

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

Formats the value using the given formatter.

impl Eq for Note

impl PartialEq for Note

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Note