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Bug 371011

Summary:	[xtend.lib] Add more utilities to IterableExtensions
Product:	[Modeling] TMF	Reporter:	Sebastian Zarnekow <sebastian.zarnekow>
Component:	Xtext	Assignee:	Project Inbox <tmf.xtext-inbox>
Status:	CLOSED FIXED	QA Contact:
Severity:	enhancement
Priority:	P3	CC:	knut.wannheden, st.oehme, sven.efftinge
Version:	2.4.3
Target Milestone:	---
Hardware:	PC
OS:	Mac OS X - Carbon (unsup.)
Whiteboard:	v2.7

Description Sebastian Zarnekow

2012-02-08 16:37:03 EST

It may be useful to have something like

takeWhile(Iterable, Predicate):Iterable
dropWhile(Iterable, Predicate):Iterable

Having some generator functions would be nice, too, e.g. one could write

val initial = 1
val Iterable<Integer> iterable = initial.seed [ int i | i * 2 ]

to generate an infinite sequence 1, 2, 4, 8, 16...

Comment 1 Knut Wannheden

2012-02-09 03:19:48 EST

+1. There is also a Guava feature request for takeWhile and dropWhile: http://code.google.com/p/guava-libraries/issues/detail?id=477

Comment 2 Stefan Oehme

2014-07-18 07:20:46 EDT

takeWhile and droWhile are merged into master

https://git.eclipse.org/r/#/c/30031/

an an iterate function is requested in Bug 431213

Comment 3 Eclipse Webmaster

2017-10-31 11:05:25 EDT

Requested via bug 522520.

-M.

Comment 4 Eclipse Webmaster

2017-10-31 11:16:46 EDT

Requested via bug 522520.

-M.