Class ContextKeyRegexExpr

contextKeyExpr/src/contextkey.ts:841–906

}

export class ContextKeyRegexExpr implements IContextKeyExpression {

	public static create(key: string, regexp: RegExp | null): ContextKeyRegexExpr {
		return new ContextKeyRegexExpr(key, regexp);
	}

	public readonly type = ContextKeyExprType.Regex;

	private constructor(private readonly key: string, private readonly regexp: RegExp | null) {
		//
	}

	public cmp(other: ContextKeyExpression): number {
		if (other.type !== this.type) {
			return this.type - other.type;
		}
		if (this.key < other.key) {
			return -1;
		}
		if (this.key > other.key) {
			return 1;
		}
		const thisSource = this.regexp ? this.regexp.source : '';
		const otherSource = other.regexp ? other.regexp.source : '';
		if (thisSource < otherSource) {
			return -1;
		}
		if (thisSource > otherSource) {
			return 1;
		}
		return 0;
	}

	public equals(other: ContextKeyExpression): boolean {
		if (other.type === this.type) {
			const thisSource = this.regexp ? this.regexp.source : '';
			const otherSource = other.regexp ? other.regexp.source : '';
			return (this.key === other.key && thisSource === otherSource);
		}
		return false;
	}

	public evaluate(context: IContext): boolean {
		let value = context.getValue<any>(this.key);
		return this.regexp ? this.regexp.test(value) : false;
	}

	public serialize(): string {
		const value = this.regexp
			? `/${this.regexp.source}/${this.regexp.ignoreCase ? 'i' : ''}`
			: '/invalid/';
		return `${this.key} =~ ${value}`;
	}

	public keys(): string[] {
		return [this.key];
	}