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Bug 364990

Summary:	[xtend] Content assist is way too slow
Product:	[Tools] Xtend	Reporter:	Sebastian Zarnekow <sebastian.zarnekow>
Component:	Core	Assignee:	Project Inbox <xtend-inbox>
Status:	CLOSED FIXED	QA Contact:
Severity:	major
Priority:	P3	CC:	sven.efftinge
Version:	2.2.0
Target Milestone:	---
Hardware:	PC
OS:	Mac OS X - Carbon (unsup.)
Whiteboard:	v2.4.3
Bug Depends on:
Bug Blocks:	409580

Description Sebastian Zarnekow

2011-11-28 12:56:37 EST

Almost all time is spent in ParserBasedContentAssistContextFactory.StatefulFactory.canBeCalledAfter(AbstractRule, EObject, String, EObject)

Comment 1 Sebastian Zarnekow

2011-12-06 18:11:26 EST

Reason is a malconfigured JDK (without sources)

Comment 2 Sven Efftinge

2013-08-16 05:38:08 EDT

In the case of Xtend a lot of time is spent in the content assist parser, since due to the recursive grammar there are usually a lot of follow elements with a large look ahead, which require expensive, subsequent parsing.

Comment 3 Sven Efftinge

2013-08-16 09:34:30 EDT

I've improved ca in xtend significantly by introducing a look ahead threshold.
The rest of the time is spent in the old scoping impl, which has to be replaced.
(see bug #411010)

Comment 4 Eclipse Webmaster

2017-10-31 11:24:38 EDT

Requested via bug 522520.

-M.