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package main
import (
"flag"
"fmt"
"jinx/pkg/lang/compiler"
"jinx/pkg/lang/parser"
"jinx/pkg/lang/scanner"
"jinx/pkg/lang/vm"
"os"
"os/user"
"path"
)
func main() {
compile := flag.String("c", "", "compile to file")
run := flag.Bool("r", false, "run")
flag.Parse()
if *compile == "" && !*run {
exit("nothing to do, either -c or -r is required")
}
filePath := flag.Arg(0)
if filePath == "" {
exit("no file specified")
}
file, err := os.Open(filePath)
if err != nil {
exit("could not open file: %v", err)
}
defer file.Close()
scanner := scanner.New(file)
tokens, err := scanner.Scan()
if err != nil {
exit("error during scanning: %v", err)
}
parser := parser.New(tokens)
program, err := parser.Parse()
if err != nil {
exit("error during parsing: %v", err)
}
comp := compiler.New(path.Base(filePath), getUsername(), program)
module, err := comp.Compile()
if err != nil {
exit("compilation failed: %v", err)
}
if *compile != "" {
output, err := os.Create(*compile)
if err != nil {
exit("could not create file: %v", err)
}
defer output.Close()
if _, err := output.Write(module.Code().Code()); err != nil {
exit("could not write to file: %v", err)
}
}
if *run {
vm := vm.New(module, vm.NewConsoleOutput())
if err := vm.Run(); err != nil {
exit("execution failed: %v", err)
}
}
}
func getUsername() string {
me, err := user.Current()
if err != nil {
return "unknown"
}
return me.Username
}
func exit(format string, args ...any) {
message := fmt.Sprintf(format, args...)
fmt.Printf("error: %s\n", message)
os.Exit(1)
}
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