iris-wasm.go

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

package main

import (
"bytes"
"fmt"
"html"
"strings"
"syscall/js"

"github.com/asciian/iris/runtime"
"github.com/asciian/iris/runtime/ilos/instance"
)

funceval(sstring) string {
r:=strings.NewReader(s)
w:=new(bytes.Buffer)
runtime.TopLevel.StandardInput=instance.NewStream(r, nil)
runtime.TopLevel.StandardOutput=instance.NewStream(nil, w)
runtime.TopLevel.ErrorOutput=instance.NewStream(nil, w)
runtime.TopLevel.Function.Set(instance.NewSymbol("READ"), nil)
runtime.TopLevel.Function.Set(instance.NewSymbol("READ-LINE"), nil)
runtime.TopLevel.Function.Set(instance.NewSymbol("READ-CHAR"), nil)
p, err:=runtime.Read(runtime.TopLevel)
iferr!=nil {
fmt.Fprint(w, html.EscapeString(err.String()))
returnw.String()
 }
e, err:=runtime.Eval(runtime.TopLevel, p)
iferr!=nil {
fmt.Fprint(w, html.EscapeString(err.String()))
returnw.String()
 }
fmt.Fprint(w, html.EscapeString(e.String()))
returnw.String()
}

funcmain() {
input:=js.Global.Get("document").Call("getElementById", "input")
button:=js.Global.Get("document").Call("getElementById", "button")
output:=js.Global.Get("document").Call("getElementById", "output")
button.Call("addEventListener", "click", js.NewCallback(func(args []js.Value) {
output.Set("value", eval(input.Get("value").String()))
 }))
select {}
}