Files
wren/test/language/inheritance/inherit_fields.wren
Bob Nystrom 58e4d26648 "IO" -> "System".
Get rid of the separate opt-in IO class and replace it with a core
System class.

- Remove wren_io.c, wren_io.h, and io.wren.
- Remove the flags that disable it.
- Remove the overloads for print() with different arity. (It was an
  experiment, but I don't think it's that useful.)
- Remove IO.read(). That will reappear using libuv in the CLI at some
  point.
- Remove IO.time. Doesn't seem to have been used.
- Update all of the tests, docs, etc.

I'm sorry for all the breakage this causes, but I think "System" is a
better name for this class (it makes it natural to add things like
"System.gc()") and frees up "IO" for referring to the CLI's IO module.
2015-09-15 07:46:09 -07:00

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class Foo {
construct new() {}
foo(a, b) {
_field1 = a
_field2 = b
}
fooPrint {
System.print(_field1)
System.print(_field2)
}
}
class Bar is Foo {
construct new() {}
bar(a, b) {
_field1 = a
_field2 = b
}
barPrint {
System.print(_field1)
System.print(_field2)
}
}
var bar = Bar.new()
bar.foo("foo 1", "foo 2")
bar.bar("bar 1", "bar 2")
bar.fooPrint
// expect: foo 1
// expect: foo 2
bar.barPrint
// expect: bar 1
// expect: bar 2