Method args

lib/HookCodeFactory.js:457–475

({ before, after } = {})

	}

	args({ before, after } = {}) {
		// Hot during code generation. Join `_args` once and cache the result,
		// then build the customized variants via string concat instead of
		// allocating temporary `[before, ...allArgs]` / `[...allArgs, after]`
		// arrays and re-joining.
		let joined = this._joinedArgs;
		if (joined === undefined) {
			joined = this._args.length === 0 ? "" : this._args.join(", ");
			this._joinedArgs = joined;
		}
		if (!before && !after) return joined;
		if (joined.length === 0) {
			if (before && after) return `${before}, ${after}`;
			return before || after;
		}
		if (before && after) return `${before}, ${joined}, ${after}`;
		if (before) return `${before}, ${joined}`;
		return `${joined}, ${after}`;
	}

	getTapFn(idx) {
		return `_x[${idx}]`;