Enum Verdict 

#[non_exhaustive]
pub enum Verdict {
    Conformant,
    NonConformant(Malformed),
    Undetermined(Unsupported),
    OutOfScope(String),
}

What can be said about a container after reading it.

Four answers rather than two. SPEC 2.2 and SPEC 3 require that a container whose metadata member cannot be read is reported as neither conformant nor non-conformant, and SPEC 2.4 puts a container declaring another version outside this document’s conformance question rather than failing it. A yes-or-no return could say neither thing.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Conformant

Conformant to the version this build implements.

NonConformant(Malformed)

Not conformant, and this is the rule it breaks.

Undetermined(Unsupported)

The metadata member could not be read, so conformance cannot be established from the file (SPEC 2.2). Not a failure, and not a pass.

OutOfScope(String)

Declares a slipcase_version this build does not implement (SPEC 2.4). Outside the question rather than failing it.

Implementations

impl Verdict

pub fn is_conformant(&self) -> bool

Whether this is Verdict::Conformant.

Deliberately not is_ok: the other three are not failures in the same sense, and two of them are not failures at all.

Trait Implementations

impl Debug for Verdict

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

Formats the value using the given formatter.

impl Display for Verdict

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

Formats the value using the given formatter.