A new version of Collections was added to project The Inbox: http://source.squeak.org/inbox/Collections-ct.875.mcz
==================== Summary ====================
Name: Collections-ct.875 Author: ct Time: 16 February 2020, 3:32:23.116 pm UUID: 61ea773b-1408-c040-a712-09238ee6fe2f Ancestors: Collections-topa.873
Extends and realigns version of #findFirst: and #findLast:.
=============== Diff against Collections-topa.873 ===============
Item was changed: ----- Method: SequenceableCollection>>findFirst: (in category 'enumerating') ----- findFirst: aBlock - "Return the index of my first element for which aBlock evaluates as true."
+ ^ self findFirst: aBlock startingAt: 1! - | index | - index := 0. - [(index := index + 1) <= self size] whileTrue: - [(aBlock value: (self at: index)) ifTrue: [^index]]. - ^ 0!
Item was added: + ----- Method: SequenceableCollection>>findFirst:ifNone: (in category 'enumerating') ----- + findFirst: aBlock ifNone: anotherBlock + + ^ self findFirst: aBlock startingAt: 1 ifNone: anotherBlock!
Item was added: + ----- Method: SequenceableCollection>>findFirst:startingAt: (in category 'enumerating') ----- + findFirst: aBlock startingAt: minIndex + + ^ self findFirst: aBlock startingAt: minIndex ifNone: [0]!
Item was added: + ----- Method: SequenceableCollection>>findFirst:startingAt:ifNone: (in category 'enumerating') ----- + findFirst: aBlock startingAt: minIndex ifNone: anotherBlock + "Return the index of my first element with index >= minIndex for which aBlock evaluates as true. If no element is found, return the value of anotherBlock." + + | index | + index := minIndex - 1. + [(index := index + 1) <= self size] whileTrue: + [(aBlock value: (self at: index)) ifTrue: [^index]]. + ^ anotherBlock value!
Item was changed: ----- Method: SequenceableCollection>>findLast: (in category 'enumerating') ----- findLast: aBlock - "Return the index of my last element for which aBlock evaluates as true."
+ ^ self findLast: aBlock startingAt: 1! - | index | - index := self size + 1. - [(index := index - 1) >= 1] whileTrue: - [(aBlock value: (self at: index)) ifTrue: [^index]]. - ^ 0!
Item was added: + ----- Method: SequenceableCollection>>findLast:ifNone: (in category 'enumerating') ----- + findLast: aBlock ifNone: anotherBlock + + ^ self findLast: aBlock startingAt: 1 ifNone: anotherBlock!
Item was changed: ----- Method: SequenceableCollection>>findLast:startingAt: (in category 'enumerating') ----- + findLast: aBlock startingAt: minIndex - findLast: aBlock startingAt: i - "Return the index of my last element with index >= i for which aBlock evaluates as true."
+ ^ self findLast: aBlock startingAt: minIndex ifNone: [0]! - | index | - index := self size + 1. - [(index := index - 1) >= i] whileTrue: - [(aBlock value: (self at: index)) ifTrue: [^index]]. - ^ 0!
Item was added: + ----- Method: SequenceableCollection>>findLast:startingAt:ifNone: (in category 'enumerating') ----- + findLast: aBlock startingAt: minIndex ifNone: anotherBlock + "Return the index of my last element with index >= minIndex for which aBlock evaluates as true. If no element is found, return the value of anotherBlock." + + | index | + index := self size + 1. + [(index := index - 1) >= minIndex] whileTrue: + [(aBlock value: (self at: index)) ifTrue: [^index]]. + ^ anotherBlock value!