wren/test/core/sequence/is_empty.wren

System.print([].isEmpty) // expect: true
System.print([1].isEmpty) // expect: false

class InfiniteSequence is Sequence {
  construct new() {}
  iterate(iterator) { true }
  iteratorValue(iterator) { iterator }
}

// Should not try to iterate the whole sequence.
System.print(InfiniteSequence.new().isEmpty) // expect: false
"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([].isEmpty) // expect: true`
			`System.print([1].isEmpty) // expect: false`
Add isEmpty to Sequence. Thanks, Michel and Thorbjørn! 2015-06-30 06:52:29 -07:00
			`class InfiniteSequence is Sequence {`
No more default constructors. Fixes #296. 2015-09-01 08:16:04 -07:00			`construct new() {}`
Add isEmpty to Sequence. Thanks, Michel and Thorbjørn! 2015-06-30 06:52:29 -07:00			`iterate(iterator) { true }`
			`iteratorValue(iterator) { iterator }`
			`}`

			`// Should not try to iterate the whole sequence.`
"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(InfiniteSequence.new().isEmpty) // expect: false`