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SourceEval

polydat_core::iteration::comprehension::eval_source

Trait SourceEval 

Source 
pub trait SourceEval {
    // Required methods
    fn eval_class(&self) -> EvalClass;
    fn evaluate(
        &self,
        ctx: Option<&EvalContext<'_>>,
    ) -> Result<EvaluatedSource, EvalError>;
}
Expand description

The source-evaluation surface.

Each Source variant implements this. The trait is object-safe but typically called through the inherent Source methods below.

Required Methods§

Source

fn eval_class(&self) -> EvalClass

Classify this source for the IR planner per spec §10.7.0. See EvalClass.

Source

fn evaluate( &self, ctx: Option<&EvalContext<'_>>, ) -> Result<EvaluatedSource, EvalError>

Materialize this source.

Static sources (Literal / IntRange / ContinuousInterval / Distribution) accept ctx = None. Context-required sources (Generator / WorkloadParamList) require Some(ctx) and return EvalError::NeedsContext otherwise.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§