Server-side Rendering throws error when using setState within onInput

[nthibert]

Bug Report

Marko Version: 4.5.6

Details

Currently our project is using server-side rendering to build the initial marko components. While developing, our team came across an issue when using setState within the onInput method. On the server-side we get an error TypeError: this.setState is not a function, though browser works fine. My manager and I started talking and looking into the difference between the Component.js and ServerComponent.js. Seems any state change method is not implemented for the ServerComponent.js. A simple code example:

component.js

export default class CounterComp {

    onCreate(input) {
        this.state = {
            counter: input.counter | 0
        };
    }

    onInput(input) {
       this.setState("counter", input.count +1)
    }
}

On server-side render this causes the error.

Expected Behavior

this.setState should not throw error when doing server rendering

Actual Behavior

this.setState throws error

Possible Fix

Implement state changing methods on ServerComponent.js (setSate, replaceState)

Additional Info

Your Environment

• Environment name and version (e.g. Chrome 39, node.js 5.4): **Chrome 64, nodejs 8.6.0
• Operating System and version (desktop or mobile): **Mac OS 10.13.3 Desktop

Stack Trace

TypeError: this.setState is not a function at Modal.onInput (webpack-internal:///54:37:22) at Modal.ServerComponent (webpack-internal:///47:20:37) at ServerComponent (webpack-internal:///46:11:5) at Object.createComponent [as ___createComponent] (webpack-internal:///46:24:21) at renderer (webpack-internal:///44:106:34) at wrappedRenderer (webpack-internal:///52:106:13) at render (webpack-internal:///51:21:3) at renderer (webpack-internal:///44:186:9) at safeRender (webpack-internal:///38:6:9) at Template.render (webpack-internal:///38:136:20)

[ybitso]

+1 Marko 4.16.5