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21 lines
898 B
JavaScript
21 lines
898 B
JavaScript
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/* eslint-disable import/prefer-default-export */
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// Global index counter to preserve source order.
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// We create the style sheet during the creation of the component,
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// children are handled after the parents, so the order of style elements would be parent->child.
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// It is a problem though when a parent passes a className
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// which needs to override any child's styles.
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// StyleSheet of the child has a higher specificity, because of the source order.
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// So our solution is to render sheets them in the reverse order child->sheet, so
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// that parent has a higher specificity.
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let indexCounter = -1e9;
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export function increment() {
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indexCounter += 1;
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if (process.env.NODE_ENV !== 'production') {
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if (indexCounter >= 0) {
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console.warn(['Material-UI: You might have a memory leak.', 'The indexCounter is not supposed to grow that much.'].join('\n'));
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}
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}
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return indexCounter;
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}
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