Files
wren/test/language/field/object_reference.wren
T
Bob Nystrom aa72900a9e feat: replace IO class with System class and remove separate IO module
- Delete wren_io.c, wren_io.h, and io.wren source files
- Remove multi-arity print overloads and IO.read/IO.time methods
- Add System class with print, printAll, write, writeAll methods to core.wren
- Update all documentation examples and README to use System.print instead of IO.print
2015-09-15 14:46:09 +00:00

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// This test exists mainly to make sure the GC traces instance fields.
class Node {
construct new(left, value, right) {
_left = left
_value = value
_right = right
}
write() {
if (_left is Node) {
_left.write()
}
System.print(_value)
if (_right is Node) {
_right.write()
}
}
}
var a = Node.new(null, "a", null)
var b = Node.new(null, "b", null)
var c = Node.new(a, "c", b)
a = null
b = null
var d = Node.new(c, "d", null)
c = null
d.write()
// expect: a
// expect: c
// expect: b
// expect: d