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58e4d26648
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.
46 lines
1.3 KiB
Plaintext
46 lines
1.3 KiB
Plaintext
var a = {"one": 1, "two": 2, "three": 3, "four": 4}.keys
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// The precise numeric values aren't defined since they are indexes into the
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// entry table and the hashing process isn't specified. So we just validate
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// what we can assume about them.
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System.print(a.iterate(null) is Num) // expect: true
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System.print(a.iterate(null) >= 0) // expect: true
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System.print(a.iterate(0) is Num) // expect: true
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System.print(a.iterate(0) > 0) // expect: true
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System.print(a.iterate(1) is Num) // expect: true
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System.print(a.iterate(1) > 0) // expect: true
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System.print(a.iterate(2) is Num) // expect: true
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System.print(a.iterate(2) > 0) // expect: true
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System.print(a.iterate(3) is Num) // expect: true
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System.print(a.iterate(3) > 0) // expect: true
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var previous = -1
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var iterator = a.iterate(null)
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while (iterator) {
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System.print(iterator > previous)
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System.print(iterator is Num)
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previous = iterator
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iterator = a.iterate(iterator)
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}
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// First entry:
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// expect: true
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// expect: true
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// Second entry:
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// expect: true
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// expect: true
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// Third entry:
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// expect: true
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// expect: true
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// Fourth entry:
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// expect: true
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// expect: true
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// Out of bounds.
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System.print(a.iterate(16)) // expect: false
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System.print(a.iterate(-1)) // expect: false
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// Nothing to iterate in an empty map.
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System.print({}.keys.iterate(null)) // expect: false
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