Trait PromptLayerSink

Source

pub trait PromptLayerSink: Sized {
    // Required method
    fn prompt_layer_mut(&mut self) -> &mut PromptLayer;

    // Provided methods
    fn prompt_template(self, template: PromptTemplate) -> Self { ... }
    fn prompt_contribution(self, contribution: PromptContribution) -> Self { ... }
    fn replace_prompt_slot(
        self,
        slot: PromptSlot,
        contributions: impl IntoIterator<Item = PromptContribution>,
    ) -> Self { ... }
    fn clear_prompt_slot(self, slot: PromptSlot) -> Self { ... }
    fn prompt_layer(self, layer: PromptLayer) -> Self { ... }
}

Expand description

Builder-agnostic prompt-layer mutation surface.

Every builder that owns a PromptLayer — crate::LashCoreBuilder (the runtime default prompt) and crate::SessionBuilder (the per-session prompt) — implements this trait by exposing its layer via prompt_layer_mut. The template/contribution/slot operations are then defined here exactly once, instead of being copy-pasted per builder.

(The per-turn TurnBuilder does not implement this trait: its prompt operations forward to the turn context, which owns that logic, so there is nothing to share.)