Enum FinishReason 

pub enum FinishReason {
    Stop,
    Length,
    ToolUse,
    SafetyBreach,
    Other(String),
}

How the model decided to stop generating.

Maps the provider-specific finish-reason strings to a closed enum callers can match on. Unmapped values land in Other(s) so the raw string is still recoverable for diagnostics.

Variants

Stop

Natural end of generation (Anthropic end_turn, OpenAI stop, Gemini STOP).

Length

Hit max_tokens budget (Anthropic max_tokens, OpenAI length, Gemini MAX_TOKENS).

ToolUse

Model invoked a tool (Anthropic tool_use, OpenAI tool_calls).

SafetyBreach

Provider’s content filter blocked output (OpenAI content_filter, Gemini SAFETY, Anthropic empty + end_turn).

Other(String)

Anything else; carries the raw provider string.

Implementations

impl FinishReason

pub fn from_provider(provider: &str, raw: &str) -> Self

Map a raw provider string into the enum.

pub fn is_safety_breach(&self) -> bool

True iff this finish reason is the provider’s safety classifier blocking output. Used by BackendError::SafetyBreach lifting.

Trait Implementations

impl Clone for FinishReason

fn clone(&self) -> FinishReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FinishReason

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

Formats the value using the given formatter.

impl Eq for FinishReason

impl PartialEq for FinishReason

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