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Get closures working!

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In the process, I had to change the grammar. There is now a strong
separation between statements and expressions. The code was just wrong
before when it popped locals at the end of a block scope because there
could be temporaries on the stack if the block was in expression
position. This fixes that.

Still need to implement closing over `this`.
This commit is contained in:
Bob Nystrom
2013-12-04 07:43:50 -08:00
parent c14b115c02
commit 157944aa27
32 changed files with 1063 additions and 416 deletions
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test/method/operators.wren
+13 -13
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@@ -1,18 +1,18 @@
class Foo {
+ other { "infix + " + other }
- other { "infix - " + other }
* other { "infix * " + other }
/ other { "infix / " + other }
% other { "infix % " + other }
< other { "infix < " + other }
> other { "infix > " + other }
<= other { "infix <= " + other }
>= other { "infix >= " + other }
== other { "infix == " + other }
!= other { "infix != " + other }
+ other { return "infix + " + other }
- other { return "infix - " + other }
* other { return "infix * " + other }
/ other { return "infix / " + other }
% other { return "infix % " + other }
< other { return "infix < " + other }
> other { return "infix > " + other }
<= other { return "infix <= " + other }
>= other { return "infix >= " + other }
== other { return "infix == " + other }
!= other { return "infix != " + other }
! { "prefix !" }
- { "prefix -" }
! { return "prefix !" }
- { return "prefix -" }
}
var foo = Foo.new