tree 43d713df5529d1a5769b98f4b5174a050e5d5a9b
parent 56faf0559da614f30d1be96461bfbc42161fadf6
author Sean McQuillan <seanmcq@google.com> 1682003285 -0700
committer Sean McQuillan <seanmcq@google.com> 1682530999 -0700

Optimize TextStyle.merge

This reduces the overhead introduced by Text() composable which is primarily responsible for merging the incoming text styles.

// after
71,190   ns           0 allocs    trace    TextLazyReuseChangedText.draw
627,212   ns         143 allocs    trace    TextLazyReuseChangedText.recomposeOnly
698,883   ns         146 allocs    trace    TextLazyReuseChangedText.recomposeMeasureLayout
73,877   ns           0 allocs    trace    TextLazyReuseChangedText.draw
634,369   ns         143 allocs    trace    TextLazyReuseChangedText.recomposeOnly
730,594   ns         147 allocs    trace    TextLazyReuseChangedText.recomposeMeasureLayout

// before
73,887   ns           0 allocs    trace    TextLazyReuseSameText.draw
638,475   ns         146 allocs    trace    TextLazyReuseSameText.recomposeOnly
769,742   ns         148 allocs    trace    TextLazyReuseSameText.recomposeMeasureLayout
72,858   ns           0 allocs    trace    TextLazyReuseChangedText.draw
652,566   ns         146 allocs    trace    TextLazyReuseChangedText.recomposeOnly
805,109   ns         150 allocs    trace    TextLazyReuseChangedText.recomposeMeasureLayout

Bug: b/246961787
Test: ./gradlew :ui:ui-text:test :ui:ui-text:cAT
Relnote: "Added optimized TextStyle.merge(...) with full parameter list."

Change-Id: Iad23419809af1c7405ba9a9d42569521e7647034