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							53 lines
						
					
					
						
							1.3 KiB
						
					
					
				
			
		
		
	
	
							53 lines
						
					
					
						
							1.3 KiB
						
					
					
				'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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var react = require('react');
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function areInputsEqual(newInputs, lastInputs) {
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  if (newInputs.length !== lastInputs.length) {
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    return false;
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  }
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  for (var i = 0; i < newInputs.length; i++) {
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    if (newInputs[i] !== lastInputs[i]) {
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      return false;
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    }
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  }
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  return true;
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}
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function useMemoOne(getResult, inputs) {
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  var initial = react.useState(function () {
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    return {
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      inputs: inputs,
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      result: getResult()
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    };
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  })[0];
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  var isFirstRun = react.useRef(true);
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  var committed = react.useRef(initial);
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  var useCache = isFirstRun.current || Boolean(inputs && committed.current.inputs && areInputsEqual(inputs, committed.current.inputs));
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  var cache = useCache ? committed.current : {
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    inputs: inputs,
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    result: getResult()
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  };
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  react.useEffect(function () {
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    isFirstRun.current = false;
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    committed.current = cache;
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  }, [cache]);
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  return cache.result;
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}
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function useCallbackOne(callback, inputs) {
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  return useMemoOne(function () {
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    return callback;
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  }, inputs);
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}
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var useMemo = useMemoOne;
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var useCallback = useCallbackOne;
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exports.useCallback = useCallback;
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exports.useCallbackOne = useCallbackOne;
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exports.useMemo = useMemo;
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exports.useMemoOne = useMemoOne;
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