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import type { WsClientMessage, WsServerMessage } from "@dispatch/transport-contract";
import type { AgentEvent, Chunk } from "@dispatch/wire";
/**
* Compile-time exhaustiveness guard for `AgentEvent.type`.
* If a variant is added/removed/renamed in `@dispatch/wire`, this function's
* default branch becomes reachable → TypeScript error at build time.
*/
export function assertAgentEventExhaustive(event: AgentEvent): string {
switch (event.type) {
case "status":
return "status";
case "turn-start":
return "turn-start";
case "text-delta":
return "text-delta";
case "reasoning-delta":
return "reasoning-delta";
case "tool-call":
return "tool-call";
case "tool-result":
return "tool-result";
case "tool-output":
return "tool-output";
case "usage":
return "usage";
case "error":
return "error";
case "done":
return "done";
case "turn-sealed":
return "turn-sealed";
case "step-complete":
return "step-complete";
default:
return event satisfies never;
}
}
/**
* Compile-time exhaustiveness guard for `Chunk.type`.
*/
export function assertChunkExhaustive(chunk: Chunk): string {
switch (chunk.type) {
case "text":
return "text";
case "thinking":
return "thinking";
case "tool-call":
return "tool-call";
case "tool-result":
return "tool-result";
case "error":
return "error";
case "system":
return "system";
default:
return chunk satisfies never;
}
}
/**
* Compile-time exhaustiveness guard for `WsServerMessage.type`.
* Covers both surface ops and chat ops.
*/
export function assertWsServerMessageExhaustive(msg: WsServerMessage): string {
switch (msg.type) {
case "catalog":
return "catalog";
case "surface":
return "surface";
case "update":
return "update";
case "error":
return "error";
case "chat.delta":
return "chat.delta";
case "chat.error":
return "chat.error";
default:
return msg satisfies never;
}
}
/**
* Compile-time exhaustiveness guard for `WsClientMessage.type`.
* Covers both surface ops and chat ops.
*/
export function assertWsClientMessageExhaustive(msg: WsClientMessage): string {
switch (msg.type) {
case "subscribe":
return "subscribe";
case "unsubscribe":
return "unsubscribe";
case "invoke":
return "invoke";
case "chat.send":
return "chat.send";
default:
return msg satisfies never;
}
}
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