// vtest vflags: -prod
import os

struct Process {
	path string
	argv []string
	dir  string
}

struct Command {
	path string
	args []string
	dir  string
mut:
	process &Process = unsafe { nil }
}

fn lookup(cmd string) !string {
	return os.find_abs_path_of_executable(cmd)!
}

fn build(mut c Command) ! {
	if !isnil(c.process) {
		return error('reuse')
	}
	c.process = &Process{
		path: lookup(c.path)!
		argv: c.args
		dir:  c.dir
	}
}

fn main() {
	mut cmd := Command{
		path: 'bash'
		args: ['-c', 'echo ok']
	}
	build(mut cmd) or { panic(err) }
}