[FLEX-33890] Style engine : style matching allocates a lot of memory even if everything is in cache

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Apache Flex 4.11.0
• Component/s: Mobile: Performance, Performance: Framework, Styles
• Labels: memory patch performance
• Environment: mobile desktop
• Assignee: Unassigned
• Reporter: Benoit Wiart
• Created: 11/Nov/13 10:24
• Updated: 03/Dec/15 16:48

Description

StyleProtoChain#getTypeHierarchy is called often and is responsible for a lot of unneeded memory allocations even if the type hierarchy is cached.

This patch has 2 parts :

• (1) : exception handling reworking in order to avoid the closure/activation creation by the try/catch
• (2) : replace the use of a flash proxy with a custom class : It seems that the proxy was only used as an array.