window.backend.SomeStruct.SomeMethod is not a function

bh90210 commented 5 years ago

Description

I have an issue when trying to use methods of structs in the frontend.

Let's say we have this main.go

package main

import (
  "github.com/leaanthony/mewn"
  "github.com/wailsapp/wails"
)

func basic() string {
  return "Hello World!"
}

func basic2() string {
  return "Hello World!"
}

type Testio struct {
    test2 int
}

func (t *Testio) Testio1() {
}

func (t *Testio) Testio2() {
}

func main() {

  js := mewn.String("./frontend/dist/app.js")
  css := mewn.String("./frontend/dist/app.css")

  app := wails.CreateApp(&wails.AppConfig{
    Width:  1024,
    Height: 768,
    Title:  "testio2",
    JS:     js,
    CSS:    css,
    Colour: "#131313",
  })
  app.Bind(basic)
  app.Bind(basic2)
  app.Bind(&Testio{})
  app.Run()
}

while serving, I try to check the methods are working via the console and I get:

VM1315:1 Uncaught TypeError: window.backend.Testio.Testio1 is not a function
    at <anonymous>:1:23

this is the log of when wails serve starts

INFO[0000] [Bind] Binding Go Functions/Methods          
INFO[0000] [Bind] Bound Function: main.basic()          
INFO[0000] [Bind] Bound Function: main.basic2()         
INFO[0000] [Bind] Bound Method: main.Testio.Testio1()   
INFO[0000] [Bind] Bound Method: main.Testio.Testio2()

if then I remove the second method func (t *Testio) Testio2() the first method works fine (see screenshots)

To Reproduce Steps to reproduce the behaviour:

Initialise a new project (I have reproduced it with react and vue, but seems irrelevant)
make a struct with as least two methods
bind the struct and serve the app
go to browser's console, try the methods and see the error

Expected behaviour Having all methods of a binded struct exported

Screenshots Screenshot_20190928_161543 Screenshot_20190928_161841