enterArrayPattern(pattern, onIdent) {
		for (
			let elementIndex = 0, len = pattern.elements.length;
			elementIndex < len;
			elementIndex++
		) {
			const element = pattern.elements[elementIndex];

			if (element) {
				this.enterPattern(element, onIdent);
			}
		}
	}
@param {ArrayPattern} pattern object pattern
@param {OnIdent} onIdent callback