Enum MeasurementSource 

pub enum MeasurementSource {
    Native {
        provider: String,
    },
    LocalExact {
        tokenizer: String,
    },
    Postflight,
    Heuristic,
}

Where a token count came from — never just a bare u32, so a caller can tell “the provider’s own count API said so” apart from “we guessed.” The provenance remains part of the reserved contract, but no runtime currently persists or consumes this fact.

Variants

Native

The provider’s own token-counting endpoint answered (e.g. Anthropic messages/count_tokens, OpenAI Responses token counting, Gemini countTokens).

Fields

provider: String

LocalExact

A real BPE tokenizer ran locally, but against a vocabulary that may not be the target provider’s own (e.g. cl100k standing in for a non-OpenAI vendor) — see FallbackEstimator (spc_011-C-01) for the concrete counter this describes.

Fields

tokenizer: String

Postflight

The provider’s own postflight usage for this exact request, fed back after execution (spc_024-06). The authority a replay reuses — never a preflight guess.

Heuristic

No tokenizer ran at all; this is a coarse guess with a generous safety margin.

Trait Implementations

impl Clone for MeasurementSource

fn clone(&self) -> MeasurementSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MeasurementSource

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MeasurementSource

fn deserialize<__D>( __deserializer: __D, ) -> Result<MeasurementSource, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for MeasurementSource

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MeasurementSource

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MeasurementSource