example.luasm

; Define some constants with labels
print: "print"
message: "Hello, World!"

LOADK 3, message ; Future upvalue

; Make a function that prints a message
print_message: {
  .constants: []
  .lastLineDefined: 1
  .numUpvalues: 1
  .upvalues: {
    "message": 3
  }

  GETGLOBAL 0, "print"
  GETUPVAL  1, 0
  CALL      0, 2, 1
}

; Call the function
CLOSURE 0, print_message
MOVE 0, 3 ; Get skipped in the VM due to the upvalue

CALL 0, 2, 1