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Bug 356975

Summary:	[Xbase] Support for procedures, i.e. "functions" of return type 'void'
Product:	[Modeling] TMF	Reporter:	Sven Efftinge <sven.efftinge>
Component:	Xtext	Assignee:	Project Inbox <tmf.xtext-inbox>
Status:	CLOSED FIXED	QA Contact:
Severity:	enhancement
Priority:	P1	CC:	meinte.boersma, sebastian.zarnekow
Version:	2.1.0	Flags:	sven.efftinge: indigo+
Target Milestone:	SR2
Hardware:	PC
OS:	Mac OS X - Carbon (unsup.)
Whiteboard:

Description Sven Efftinge

2011-09-07 13:21:15 EDT

In addition to the Funciton types in Functions we should provide support for Procedures, which are just like functions but without a retur value.
They area useful in all kinds of side effect situations like. e.g. foreach or the new builder syntax.

Comment 1 Meinte Boersma

2011-10-05 09:32:45 EDT

Agree (for what it's worth ;))

Adding

	interface VoidFunction1<Param> {

		void apply(Param p);

	}

to o.e.x.x.l.Functions and a o.e.x.x.l.IterableExtensions#forEach with signature

public static final <T> void forEach(Iterable<T> iterable, VoidFunction1<? super T> function)

should do the trick and saves everyone from having to write .forEach(it|{it.doSomething; null})

Comment 2 Sebastian Zarnekow

2011-10-10 09:05:43 EDT

Pushed to master.

Comment 3 Karsten Thoms

2017-09-19 17:01:13 EDT

Closing all bugs that were set to RESOLVED before Neon.0

Comment 4 Karsten Thoms

2017-09-19 17:12:37 EDT

Closing all bugs that were set to RESOLVED before Neon.0