Fan

 

const final class

sys::Range

sys::Obj
  sys::Range

Range represents a contiguous range of integers from start to end. Ranges may be represented as literals in Fan source code as "start..end" for an inclusive end or "start...end" for an exlusive range.

Slots

containsSource

Bool contains(Int i)

Return if this range contains the specified integer.

Example:

(1..3).contains(2)  =>  true
(1..3).contains(4)  =>  false
eachSource

Void each(|Int| c)

Call the specified function for each integer in the range.

Example:

('a'..'z').each |Int i| { echo(i) }
endSource

Int end()

Return end index.

Example:

(1..3).end  =>  3
equalsSource

override Bool equals(Obj? obj)

Overrides sys::Obj.equals

Return true if same start, end, and exclusive.

exclusiveSource

Bool exclusive()

Is the end index exclusive.

Example:

(1..3).exclusive   =>  false
(1...3).exclusive  =>  true
hashSource

override Int hash()

Overrides sys::Obj.hash

Return start ^ end.

inclusiveSource

Bool inclusive()

Is the end index inclusive.

Example:

(1..3).inclusive   =>  true
(1...3).inclusive  =>  false
makeSource

new make(Int start, Int end, Bool exclusive)

Constructor with start, end, and exclusive flag (all must be non-null).

makeExclusiveSource

new makeExclusive(Int start, Int end)

Convenience for make(start, end, true).

makeInclusiveSource

new makeInclusive(Int start, Int end)

Convenience for make(start, end, false).

startSource

Int start()

Return start index.

Example:

(1..3).start  =>  1
toListSource

Int[] toList()

Convert this range into a list of Ints.

Example:

(2..4).toList   =>  [2,3,4]
(2...4).toList  =>  [2,3]
(10..8).toList  =>  [10,9,8]
toStrSource

override Str toStr()

Overrides sys::Obj.toStr

If inclusive return "start..end", if exclusive return "start...end".