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https://issues.apache.org/jira/browse/FLEX-33893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Mclean reassigned FLEX-33893:
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Assignee: Justin Mclean
> CSSStyleDeclaration is inefficient during style matching
> --------------------------------------------------------
>
> Key: FLEX-33893
> URL: https://issues.apache.org/jira/browse/FLEX-33893
> Project: Apache Flex
> Issue Type: Improvement
> Components: Mobile: Performance, Performance: Framework, Styles
> Affects Versions: Apache Flex 4.11.0
> Environment: desktop mobile
> Reporter: Benoit Wiart
> Assignee: Justin Mclean
> Labels: memory, patch, performance
> Attachments: 0001-cssstyledeclaration-optimization.patch,
> cssstyledeclaration-example-1-mobile.png,
> cssstyledeclaration-example-2-mobile.png, protochain-before-after.png
>
>
> When no factory (or defaultFactory) is provided a new function is created
> when matching styles (addFactoryAndOverrideStylesToProtoChain,
> addStyleToProtoChain, applyFilter).
> This is a major source of unneeded memory allocations (== GC)
> The patch re-use a single function as the prototype is always reseted
> This should be reviewed by an actionscript ninja ;-)
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