| 1 | var $ = require('../internals/export');
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| 2 | var isArray = require('../internals/is-array');
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| 3 |
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| 4 | var isFrozen = Object.isFrozen;
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| 5 |
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| 6 | var isFrozenStringArray = function (array, allowUndefined) {
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| 7 | if (!isFrozen || !isArray(array) || !isFrozen(array)) return false;
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| 8 | var index = 0;
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| 9 | var length = array.length;
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| 10 | var element;
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| 11 | while (index < length) {
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| 12 | element = array[index++];
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| 13 | if (!(typeof element === 'string' || (allowUndefined && typeof element === 'undefined'))) {
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| 14 | return false;
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| 15 | }
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| 16 | } return length !== 0;
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| 17 | };
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| 18 |
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| 19 |
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| 20 |
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| 21 | $({ target: 'Array', stat: true }, {
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| 22 | isTemplateObject: function isTemplateObject(value) {
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| 23 | if (!isFrozenStringArray(value, true)) return false;
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| 24 | var raw = value.raw;
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| 25 | if (raw.length !== value.length || !isFrozenStringArray(raw, false)) return false;
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| 26 | return true;
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| 27 | }
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| 28 | });
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