Function handler

packages/opencode/src/tool/shell.ts:535–535

()

          const abort = Effect.callback<void>((resume) => {
            if (ctx.abort.aborted) return resume(Effect.void)
            const handler = () => resume(Effect.void)
            ctx.abort.addEventListener("abort", handler, { once: true })
            return Effect.sync(() => ctx.abort.removeEventListener("abort", handler))
          })