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## Why `ContextualUserFragment` needs to be usable behind `dyn` for render-only paths, but associated constants made the trait non-object-safe. ## What changed - Replaced associated constants with trait methods so `dyn ContextualUserFragment` can render fragments. - Preserved the existing typed `T::matches_text(text)` registration pattern via `type_markers()`. - Kept default `render()` on the main trait so implementations only provide role, markers, and body. - Added unit coverage for rendering a `Box<dyn ContextualUserFragment>`. ## Verification - `cargo test -p codex-core contextual_user_fragment_is_dyn_compatible` - `just fix -p codex-core`
27 lines
591 B
Rust
27 lines
591 B
Rust
//! Hidden user-context fragment for runtime-owned goal steering prompts.
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use super::ContextualUserFragment;
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#[derive(Debug, Clone, PartialEq)]
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pub(crate) struct GoalContext {
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pub(crate) prompt: String,
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}
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impl ContextualUserFragment for GoalContext {
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fn role() -> &'static str {
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"user"
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}
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fn markers(&self) -> (&'static str, &'static str) {
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Self::type_markers()
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}
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fn type_markers() -> (&'static str, &'static str) {
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("<goal_context>", "</goal_context>")
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}
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fn body(&self) -> String {
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format!("\n{}\n", self.prompt)
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}
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}
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