classifier.ts

export const isObjectOrSubjectConstructor: Classifier = classifierTemplate((node) => {
    if (ts.isNewExpression(node) && ts.isIdentifier(node.expression)) {
        if ([...rxjsObjectKinds, ...rxjsSubjectKinds].some(operator => operator === node.expression.getText())) {
            return true;
        }
    }
    return false;
});

// Classify node by set of classifiers, if classified return true.
export const classify = (node: Touched<ts.Node>): RxJSPart => {
    const classifiers: [Classifier, RxJSPart][] = [
        [isRxJSCreationOperator, RxJSPart.observable],
        [isRxJSJoinCreationOperator, RxJSPart.observable],
        [isObjectOrSubjectConstructor, RxJSPart.observable],
        [isSubscribe, RxJSPart.subscriber],
        [isPipeOperator, RxJSPart.pipeOperator]
    ];

    const classification = classifiers
        .filter(tuple => tuple[0](node))
        .map(tuple => tuple[1])
        .pop();

    return classification ? classification : RxJSPart.unclassified;
};