mirror of
https://github.com/leafo/moonscript.git
synced 2025-01-09 00:04:22 +00:00
start writing changelog
This commit is contained in:
parent
caa724d098
commit
352130cdae
78
CHANGELOG.md
78
CHANGELOG.md
@ -1,4 +1,82 @@
|
|||||||
|
|
||||||
|
# MoonScript v0.4.0 (2015-12-06)
|
||||||
|
|
||||||
|
## Changes to `super`
|
||||||
|
|
||||||
|
`super` now looks up the parent method via the class reference, instead of a
|
||||||
|
(fixed) closure to the parent class.
|
||||||
|
|
||||||
|
Given the following code:
|
||||||
|
|
||||||
|
```moonscript
|
||||||
|
class MyThing extends OtherThing
|
||||||
|
the_method: =>
|
||||||
|
super!
|
||||||
|
```
|
||||||
|
|
||||||
|
In the past `super` would compile to something like this:
|
||||||
|
|
||||||
|
```lua
|
||||||
|
_parent_0.the_method(self)
|
||||||
|
```
|
||||||
|
|
||||||
|
Where `_parent_0` was an internal local variable that contains a reference to
|
||||||
|
the parent class. Because the reference to parent is an internal local
|
||||||
|
variable, you could never swap out the parent unless resorting to the debug
|
||||||
|
library.
|
||||||
|
|
||||||
|
This version will compile to:
|
||||||
|
|
||||||
|
```lua
|
||||||
|
_class_0.__parent.__base.the_method(self)
|
||||||
|
```
|
||||||
|
|
||||||
|
Where `_class_0` is an internal local variable that contains the current class (`MyThing`).
|
||||||
|
|
||||||
|
Another difference is that the instance method is looked up on `__base` instead
|
||||||
|
of the class. The old variation would trigger the metamethod for looking up on
|
||||||
|
the instance, but a class method of the same name could conflict, take
|
||||||
|
precedence, and be retuned instead. By referencing `__base` directly we avoid
|
||||||
|
this issue.
|
||||||
|
|
||||||
|
### Super on class methods
|
||||||
|
|
||||||
|
`super` can now be used on class methods. It works exactly as you would expect.
|
||||||
|
|
||||||
|
```moonscript
|
||||||
|
class MyThing extends OtherThing
|
||||||
|
@static_method: =>
|
||||||
|
print super!
|
||||||
|
```
|
||||||
|
|
||||||
|
Calling `super` will compile to:
|
||||||
|
|
||||||
|
```moonscript
|
||||||
|
_class_0.__parent.static_method(self)
|
||||||
|
```
|
||||||
|
|
||||||
|
### Improved scoping for super
|
||||||
|
|
||||||
|
The scoping of super is more intelligent. You can warp your methods in other
|
||||||
|
code and `super` will still generate correctly. For example, syntax like this
|
||||||
|
will now work as expected:
|
||||||
|
|
||||||
|
```moonscript
|
||||||
|
class Sub extends Base
|
||||||
|
value: if debugging
|
||||||
|
=> super! + 100
|
||||||
|
else
|
||||||
|
=> super! + 10
|
||||||
|
|
||||||
|
other_value: some_decorator {
|
||||||
|
the_func: =>
|
||||||
|
super!
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
`super` will refer to the lexically closest class declaration to find the name
|
||||||
|
of the method it should call on the parent.
|
||||||
|
|
||||||
# MoonScript v0.3.2 (2015-6-01)
|
# MoonScript v0.3.2 (2015-6-01)
|
||||||
|
|
||||||
## Bug Fixes
|
## Bug Fixes
|
||||||
|
Loading…
Reference in New Issue
Block a user