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"IO" -> "System".

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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.
This commit is contained in:
Bob Nystrom
2015-09-15 07:46:09 -07:00
parent 66b89a493f
commit 58e4d26648
491 changed files with 3285 additions and 3544 deletions
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56
test/core/string/subscript_range.wren
View File

@ -1,49 +1,49 @@
var string = "abcde"
IO.print(string[0..0]) // expect: a
IO.print(string[1...1] == "") // expect: true
IO.print(string[1..2]) // expect: bc
IO.print(string[1...2]) // expect: b
IO.print(string[2..4]) // expect: cde
IO.print(string[2...5]) // expect: cde
System.print(string[0..0]) // expect: a
System.print(string[1...1] == "") // expect: true
System.print(string[1..2]) // expect: bc
System.print(string[1...2]) // expect: b
System.print(string[2..4]) // expect: cde
System.print(string[2...5]) // expect: cde
// A backwards range reverses.
IO.print(string[3..1]) // expect: dcb
IO.print(string[3...1]) // expect: dc
IO.print(string[3...3] == "") // expect: true
System.print(string[3..1]) // expect: dcb
System.print(string[3...1]) // expect: dc
System.print(string[3...3] == "") // expect: true
// Negative ranges index from the end.
IO.print(string[-5..-2]) // expect: abcd
IO.print(string[-5...-2]) // expect: abc
IO.print(string[-3..-5]) // expect: cba
IO.print(string[-3...-6]) // expect: cba
System.print(string[-5..-2]) // expect: abcd
System.print(string[-5...-2]) // expect: abc
System.print(string[-3..-5]) // expect: cba
System.print(string[-3...-6]) // expect: cba
// Half-negative ranges are treated like the negative value is fixed before
// walking the range.
IO.print(string[-5..3]) // expect: abcd
IO.print(string[-3...5]) // expect: cde
IO.print(string[-2..1]) // expect: dcb
IO.print(string[-2...0]) // expect: dcb
System.print(string[-5..3]) // expect: abcd
System.print(string[-3...5]) // expect: cde
System.print(string[-2..1]) // expect: dcb
System.print(string[-2...0]) // expect: dcb
IO.print(string[1..-2]) // expect: bcd
IO.print(string[2...-1]) // expect: cd
IO.print(string[4..-5]) // expect: edcba
IO.print(string[3...-6]) // expect: dcba
System.print(string[1..-2]) // expect: bcd
System.print(string[2...-1]) // expect: cd
System.print(string[4..-5]) // expect: edcba
System.print(string[3...-6]) // expect: dcba
// An empty range at zero is allowed on an empty string.
IO.print(""[0...0] == "") // expect: true
IO.print(""[0..-1] == "") // expect: true
System.print(""[0...0] == "") // expect: true
System.print(""[0..-1] == "") // expect: true
// Indexes by byte, not code point.
//
// Bytes: 11111
// 012345678901234
// Chars: sø mé ஃ thî ng
IO.print("søméஃthîng"[0..3]) // expect: søm
IO.print("søméஃthîng"[3...10]) // expect: méஃt
System.print("søméஃthîng"[0..3]) // expect: søm
System.print("søméஃthîng"[3...10]) // expect: méஃt
// Only includes sequences whose first byte is in the range.
IO.print("søméஃthîng"[2..6]) // expect: méஃ
IO.print("søméஃthîng"[2...6]) // expect: mé
IO.print("søméஃthîng"[2...7]) // expect: méஃ
System.print("søméஃthîng"[2..6]) // expect: méஃ
System.print("søméஃthîng"[2...6]) // expect: mé
System.print("søméஃthîng"[2...7]) // expect: méஃ
// TODO: Strings including invalid UTF-8.