dispatch.ts

// Classify node, dispatch to appropriate wrapper function.
export const dispatch = (node: Touched<ts.Node>): [Transformed<ts.Node>, RxJSPart] => {
    const classification = classify(node);

    switch (classification) {
        case RxJSPart.observable: {
            const transformed = markAsTransformed(wrapObservableStatement(node as ts.CallExpression));
            return [transformed, classification];
        }
        case RxJSPart.subscriber: {
            const transformed = markAsTransformed(wrapSubscribeExpression(node as ts.CallExpression));
            return [transformed, classification];
        }
        case RxJSPart.pipeOperator: {
            const transformed = markAsTransformed(wrapPipeOperatorExpression(node as ts.CallExpression));
            return [transformed, classification];
        }
        default:
            return [node, classification];
    };
};