Struct UnknownValue 

pub struct UnknownValue {
    pub file: String,
    pub line: u32,
    pub subject: String,
    pub predicate: String,
    pub value: String,
    pub declared: String,
    pub suggestion: String,
}

Details of a closed-world violation (see CompileError::UnknownValue). Kept in its own (boxed) struct so the common error path stays small.

Fields

file: String

The source the offending reference is in.

line: u32

1-based line of the offending reference.

subject: String

The variable’s subject.

predicate: String

The variable’s predicate.

value: String

The out-of-set value that was used.

declared: String

The declared legal values, comma-joined (sorted).

suggestion: String

— did you mean \x`?`, or empty when nothing is close enough.

Trait Implementations

impl Debug for UnknownValue

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

Formats the value using the given formatter.

impl Display for UnknownValue

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

Formats the value using the given formatter.

impl Eq for UnknownValue

impl Error for UnknownValue

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for UnknownValue

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