Struct BlockEvaluators 

pub struct BlockEvaluators { /* private fields */ }

The host’s eval menu: the BlockEvaluators it ships, keyed by language. Routing a fence’s tag to a backend is the polyglot seam — register the languages you trust on this build, and an unknown tag simply isn’t found (the evaluate pass denies it).

Implementations

impl BlockEvaluators

pub fn new() -> Self

pub fn register(&mut self, evaluator: Box<dyn BlockEvaluator>) -> &mut Self

Add an evaluator, keyed by its language.

pub fn languages(&self) -> Vec<&str>

The registered language tags, sorted.

pub fn evaluate( &mut self, language: &str, source: &str, max_ops: u64, ) -> Result<EvalOutput, String>

Evaluate a fence by language tag, bounded by max_ops. Err when the language has no registered evaluator (the host didn’t ship it) or the evaluation itself failed.

Trait Implementations

impl Default for BlockEvaluators

fn default() -> BlockEvaluators

Returns the “default value” for a type.