wren/test/language/while/syntax.wren

// Single-expression body.
var c = 0
while (c < 3) System.print(c = c + 1)
// expect: 1
// expect: 2
// expect: 3

// Block body.
var a = 0
while (a < 3) {
  System.print(a)
  a = a + 1
}
// expect: 0
// expect: 1
// expect: 2
While statements. 2013-11-17 22:38:59 -08:00			`// Single-expression body.`
			`var c = 0`
"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			`while (c < 3) System.print(c = c + 1)`
While statements. 2013-11-17 22:38:59 -08:00			`// expect: 1`
			`// expect: 2`
			`// expect: 3`

			`// Block body.`
			`var a = 0`
			`while (a < 3) {`
"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)`
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			`a = a + 1`
While statements. 2013-11-17 22:38:59 -08:00			`}`
			`// expect: 0`
			`// expect: 1`
			`// expect: 2`