| 1 | var has = require('./internals/has');
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| 2 | var isArray = require('./internals/is-array');
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| 3 | var isForced = require('./internals/is-forced');
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| 4 | var shared = require('./internals/shared-store');
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| 5 |
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| 6 | var data = isForced.data;
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| 7 | var normalize = isForced.normalize;
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| 8 | var USE_FUNCTION_CONSTRUCTOR = 'USE_FUNCTION_CONSTRUCTOR';
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| 9 | var ASYNC_ITERATOR_PROTOTYPE = 'AsyncIteratorPrototype';
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| 10 |
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| 11 | var setAggressivenessLevel = function (object, constant) {
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| 12 | if (isArray(object)) for (var i = 0; i < object.length; i++) data[normalize(object[i])] = constant;
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| 13 | };
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| 14 |
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| 15 | module.exports = function (options) {
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| 16 | if (typeof options == 'object') {
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| 17 | setAggressivenessLevel(options.useNative, isForced.NATIVE);
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| 18 | setAggressivenessLevel(options.usePolyfill, isForced.POLYFILL);
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| 19 | setAggressivenessLevel(options.useFeatureDetection, null);
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| 20 | if (has(options, USE_FUNCTION_CONSTRUCTOR)) shared[USE_FUNCTION_CONSTRUCTOR] = !!options[USE_FUNCTION_CONSTRUCTOR];
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| 21 | if (has(options, ASYNC_ITERATOR_PROTOTYPE)) shared[USE_FUNCTION_CONSTRUCTOR] = options[ASYNC_ITERATOR_PROTOTYPE];
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| 22 | }
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| 23 | };
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