Method updateHashCode

runtime/JavaScript/src/antlr4/atn/ATNConfigSet.js:183–192

(hash)

	}

	updateHashCode(hash) {
		if (this.readOnly) {
			if (this.cachedHashCode === -1) {
				this.cachedHashCode = this.hashCode();
			}
			hash.update(this.cachedHashCode);
		} else {
			hash.update(this.hashCode());
		}
	}

	isEmpty() {
		return this.configs.length === 0;