umx_compiler

UMX virtual machine "Monkey" interpreter / bytecode compiler
git clone git://bsandro.tech/umx_compiler
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main.go (527B)

      1 package main
      2 
      3 import (
      4 	"fmt"
      5 	"umx_compiler/repl"
      6 	"os"
      7 	"os/user"
      8 	_ "bsandro.tech/umx_asm.git/asm"
      9 )
     10 
     11 func main() {
     12 	user, err := user.Current()
     13 	if err != nil {
     14 		panic(err)
     15 	}
     16 
     17 	if len(os.Args) > 1 {
     18 		fname := os.Args[1]
     19 		script, err := os.ReadFile(fname)
     20 		if err != nil {
     21 			fmt.Printf("error opening file %s: %s\n", fname, err.Error())
     22 			return
     23 		}
     24 		repl.Run(string(script), os.Stdout)
     25 	} else {
     26 		fmt.Printf("ehlo %s, this is 'Monkey' language interpreter\n", user.Username)
     27 		repl.Start(os.Stdin, os.Stdout)
     28 	}
     29 }