inngest/components/execution/lazyOps.js

Official SDK for Inngest.com. Inngest is the reliability layer for modern applications. Inngest combines durable execution, events, and queues into a zero-infra platform with built-in observability.

import { StepMode } from "../../types.js";

//#region src/components/execution/lazyOps.ts
/**
* Buffer for opcode-only sync ops (e.g. `DeferAdd`). These ops need to be
* buffered until the next outbound wire message (e.g. checkpointing a
* `step.run`).
*
* The engine owns shipping. This helper owns the buffer.
*/
var LazyOps = class {
	buffer = [];
	pushedIds = /* @__PURE__ */ new Set();
	/**
	* Number of ops waiting to ship.
	*/
	get length() {
		return this.buffer.length;
	}
	/**
	* Whether an op with this hashed id has been pushed in this execution
	* (whether or not it has since been drained).
	*/
	hasId(id) {
		return this.pushedIds.has(id);
	}
	/**
	* Take ownership of buffered ops and clear the buffer. Callers ship them on
	* whichever wire message comes next.
	*/
	drain() {
		if (this.buffer.length === 0) return [];
		const ops = this.buffer;
		this.buffer = [];
		return ops;
	}
	/**
	* Buffer an op for later shipment.
	*/
	push(op) {
		this.buffer.push(op);
		this.pushedIds.add(op.id);
	}
	/**
	* Record that an id has been observed in this execution without buffering
	* an op for it. Used to consume a `priorDefers` replay match so that
	* subsequent encounters of the same id surface as duplicates.
	*/
	markSeen(id) {
		this.pushedIds.add(id);
	}
};
/**
* True when a step being registered is an opcode-only sync op (no local
* handler, sync mode).
*/
function isLazyOp(opts, opId) {
	return !opts?.fn && opId.mode === StepMode.Sync;
}

//#endregion
export { LazyOps, isLazyOp };
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