wren/test/language/variable/scope_while.wren

// Body has its own scope.
var a = "outer"
var i = 0
while ((i = i + 1) <= 1) {
  var a = "inner"
}
System.print(a) // expect: outer
Start getting block scope working. 2013-11-18 09:19:03 -08:00			`// Body has its own scope.`
			`var a = "outer"`
			`var i = 0`
Get closures working! 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`. 2013-12-04 07:43:50 -08:00			`while ((i = i + 1) <= 1) {`
			`var a = "inner"`
			`}`
"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			`System.print(a) // expect: outer`