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feat(useStyles): avoid creating new instances of mergedStyles if there are no inline overrides#2226
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mnajdova
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JasonGore,
dvdzkwsk,
dzearing,
ecraig12345,
jdhuntington,
kenotron,
layershifter,
levithomason and
miroslavstastny
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January 10, 2020 16:48
-no caching added if some of the prop of the hash obj is function
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# Conflicts: # packages/react/src/utils/renderComponent.tsx
mnajdova
commented
Jan 17, 2020
| props.styles && withDebugId({ root: props.styles } as ComponentSlotStylesInput, 'props.styles'), | ||
| animationStyles && withDebugId({ root: animationStyles }, 'props.animation'), | ||
| ) | ||
| let mergedStyles: ComponentSlotStylesPrepared = theme.componentStyles[displayName] || { |
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As the theme is immutable, the mergedStyles by default will always reference to the same object.
mnajdova
commented
Jan 17, 2020
mnajdova
commented
Jan 17, 2020
| animationStyles && withDebugId({ root: animationStyles }, 'props.animation'), | ||
| ) | ||
| let mergedStyles: ComponentSlotStylesPrepared = theme.componentStyles[displayName] || { | ||
| root: () => ({}), |
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This is necessary for the components that don't have any styles in the theme. It is always a new object, but it should be ok as we don't have anything to cache anyway
mnajdova
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mnajdova
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silviuaavram
approved these changes
Jan 17, 2020
# Conflicts: # packages/react-bindings/src/styles/getStyles.ts
layershifter
approved these changes
Jan 23, 2020
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Improved
useStyles, to avoid creating new instances ofmergedStylesif there are no inline overrides.