Struct ServerHandle 

pub struct ServerHandle {
    pub name: String,
    pub handle: LspHandle,
    pub feature_filter: FeatureFilter,
    pub capabilities: ServerCapabilitySummary,
}

A named LSP handle with feature filter metadata and per-server capabilities. Wraps an LspHandle with the server’s display name, feature routing filter, and the capabilities reported by this specific server during initialization.

Fields

name: String

Display name for this server (e.g., “rust-analyzer”, “eslint”)

handle: LspHandle

The underlying LSP handle

feature_filter: FeatureFilter

Feature filter controlling which LSP features this server handles

capabilities: ServerCapabilitySummary

Capabilities reported by this server during initialization.

Implementations

impl ServerHandle

pub fn has_capability(&self, feature: LspFeature) -> bool

Check if this server has the actual capability for a feature.

Checks the server’s reported capabilities (from the initialize response). Before initialization completes (capabilities not yet received), returns false — the main loop must not route feature requests to servers whose capabilities are unknown. Callers handle None from handle_for_feature_mut by relying on existing retry mechanisms (render-cycle polling, timer retries, or explicit re-requests from the LspInitialized handler).