hi,

at first 👍 for this great tool.

i refactored the code a bit and now the ast parser run at the browser. the go code is compiled to wasm and some small changes at the angular conde need to be done to make the serverless version.

if you like the idea, let me know and i prepare a PR.

Hello @yuroyoro!
Now, you server create AST from Go source.
Is possible add parsing string to Go AST expression?

Result of next example is AST of expression d*6*integer(r*8+ff,12,3):

package main

import (
	"go/ast"
	"go/parser"
	"go/token"
)

func main() {
	a, _ := parser.ParseExpr("d*6*integer(r*8+ff,12,3)")
	ast.Print(token.NewFileSet(), a)
}

> go get -d github.com/yuroyoro/goast-viewer
package syscall/js: unrecognized import path "syscall/js" (import path does not begin with hostname)

go version go1.10.8 darwin/amd64

OS: macOS Mojave 10.14.6 18G1012 x86_64
Host: MacBookPro15,1
Kernel: 18.7.0
Uptime: 7 days, 8 hours, 50 mins
Packages: 135 (brew)
Shell: bash 5.0.11
Resolution: 1680x1050, 1920x1080
DE: Aqua
WM: Spectacle
Terminal: iTerm2
Terminal Font: HackNerdFontComplete-Regular 12
CPU: Intel i7-9750H (12) @ 2.60GHz
GPU: Intel UHD Graphics 630, Radeon Pro 555X
Memory: 10353MiB / 16384MiB