Struct SourceUncertainty 

#[non_exhaustive]
pub struct SourceUncertainty {
    pub scope: UncertaintyScope,
    pub cause: UncertaintyCause,
    pub message: String,
}

One conservative frontend limitation, independent of its diagnostic wording.

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.

scope: UncertaintyScope

Authority affected by this limitation.

cause: UncertaintyCause

Missing proof and its effect on comparisons.

message: String

Human-readable diagnostic.

Implementations

impl SourceUncertainty

pub fn new( scope: UncertaintyScope, cause: UncertaintyCause, message: impl Into<String>, ) -> Self

Creates an explicitly scoped limitation; narrowing requires frontend isolation evidence.

Trait Implementations

impl Clone for SourceUncertainty

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 SourceUncertainty

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

Formats the value using the given formatter.

impl Eq for SourceUncertainty

impl PartialEq for SourceUncertainty

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SourceUncertainty