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wren/doc/site/core/class.markdown
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

511 B

^title Class Class ^category core

Methods

name

The name of the class.

supertype

The superclass of this class.

:::dart
class Crustacean {}
class Crab is Crustacean {}

System.print(Crab.supertype) // "Crustacean".

A class with no explicit superclass implicitly inherits Object:

:::dart
System.print(Crustacean.supertype) // "Object".

Object forms the root of the class hierarchy and has no supertype:

:::dart
System.print(Object.supertype) // "null".