Method constructor

components/dash-table/src/core/syntax-tree/index.ts:57–64

(
        public readonly lexicon: Lexicon,
        public readonly query: string,
        postProcessor: (res: ILexerResult) => ILexerResult = res => res
    )

    }

    constructor(
        public readonly lexicon: Lexicon,
        public readonly query: string,
        postProcessor: (res: ILexerResult) => ILexerResult = res => res
    ) {
        this.lexerResult = postProcessor(lexer(this.lexicon, this.query));
        this.syntaxerResult = syntaxer(this.lexerResult);
    }

    evaluate = (target: any) => {
        if (!this.isValid) {