Enum NegativeCapability 

pub enum NegativeCapability {
    DoesNotClaimAllIanaReleasesWithoutAdmission,
    DoesNotClaimArbitraryTzifRoundtrip,
    DoesNotClaimFullToctouResistance,
    DoesNotClaimFutureCivilTimeAuthority,
    DoesNotClaimLeapSmearSemantics,
    DoesNotClaimRangeTruncationLeapExpiryInteractionParityWithoutWitness,
    DoesNotClaimReportAuthenticityWithoutSignatureOrReproducibleContext,
    DoesNotClaimTzifValidatorAsSecuritySandbox,
    DoesNotClaimUnadmittedVendorParity,
    DoesNotCurateTimeOrDefineDisplayNames,
    DoesNotDependOnHostEndianness,
    DoesNotInferDataformFromContent,
    DoesNotInferSourceVariantFromOutputShape,
    DoesNotRequireManifestToReadTzif,
    DoesNotShipOrOperateVendorQemuLabsInCoreRepo,
    DoesNotTreatManifestAsTzifSemantics,
}

A non-claim, made a first-class machine-visible contract (T15.2). Advertised restraint is engineering, not decoration: each variant renders a stable snake_case string and names the guard/test/receipt that enforces the boundary (enforced_by). “We don’t claim X” is exactly where infrastructure tools get sloppy — this makes each non-claim auditable.

Variants

DoesNotClaimAllIanaReleasesWithoutAdmission

DoesNotClaimArbitraryTzifRoundtrip

DoesNotClaimFullToctouResistance

DoesNotClaimFutureCivilTimeAuthority

DoesNotClaimLeapSmearSemantics

zic-rs emits discrete TZif leap-second records; it never implements leap smearing.

DoesNotClaimRangeTruncationLeapExpiryInteractionParityWithoutWitness

The interaction of range truncation (-r) with leap-expiry has no semantic witness and is not claimed (the Rolling-leap-under--r case is a hard error, not a parity claim).

DoesNotClaimReportAuthenticityWithoutSignatureOrReproducibleContext

DoesNotClaimTzifValidatorAsSecuritySandbox

DoesNotClaimUnadmittedVendorParity

DoesNotCurateTimeOrDefineDisplayNames

DoesNotDependOnHostEndianness

TZif is big-endian on disk; zic-rs writes it big-endian regardless of host endianness.

DoesNotInferDataformFromContent

DoesNotInferSourceVariantFromOutputShape

DoesNotRequireManifestToReadTzif

DoesNotShipOrOperateVendorQemuLabsInCoreRepo

The core repo admits vendor-oracle receipts; it does not run/ship QEMU/VM labs (T16.5).

DoesNotTreatManifestAsTzifSemantics

Implementations

impl NegativeCapability

pub fn as_str(self) -> &'static str

The stable snake_case identifier (the report’s capability field).

pub fn enforced_by(self) -> &'static str

The guard/test/receipt that enforces this non-claim (never empty — a non-claim without an enforcing reference would be decorative, which T15.2 forbids).

Trait Implementations

impl Clone for NegativeCapability

fn clone(&self) -> NegativeCapability

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NegativeCapability

impl Debug for NegativeCapability

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

Formats the value using the given formatter.

impl Eq for NegativeCapability

impl PartialEq for NegativeCapability

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