Assignment

Constructor

<process_id|expression> =: dst

expression can be any logical or arithmetical expression. dst must be a property or a list of properties separated by comma.

Action

Copies the result of the left side to the destination property on tree traversal.

Predefined children

None

Example

use core
use base
use gui

_main_
Component root {
  Frame f ("f", 0, 0, 400, 400)
  f.close ->! mainloop
  FillColor fc (Blue)
  Int blue (Blue)
  Int green (Green)
  Rectangle r (50, 50, 100, 70, 5, 5)
  FSM fsm {
    State st1 {
      blue =: fc.value
    }
    State st2 {
      green =: fc.value
    }
    st1->st2 (r.press)
    st2->st1 (r.release)
  }
}