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42 lines
1.1 KiB
42 lines
1.1 KiB
'use strict'; |
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Object.defineProperty(exports, "__esModule", { |
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value: true |
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}); |
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exports.default = extractValueFromTemplateLiteral; |
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function sortStarts(a, b) { |
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return (a.range ? a.range[0] : a.start) - (b.range ? b.range[0] : b.start); |
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} |
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/** |
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* Returns the string value of a template literal object. |
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* Tries to build it as best as it can based on the passed |
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* prop. For instance `This is a ${prop}` will return 'This is a {prop}'. |
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* |
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* If the template literal builds to undefined (`${undefined}`), then |
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* this should return "undefined". |
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*/ |
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function extractValueFromTemplateLiteral(value) { |
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var quasis = value.quasis, |
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expressions = value.expressions; |
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var partitions = quasis.concat(expressions); |
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return partitions.sort(sortStarts).reduce(function (raw, part) { |
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var type = part.type; |
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if (type === 'TemplateElement') { |
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return raw + part.value.raw; |
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} |
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if (type === 'Identifier') { |
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return part.name === 'undefined' ? '' + raw + part.name : raw + '{' + part.name + '}'; |
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} |
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if (type.indexOf('Expression') > -1) { |
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return raw + '{' + type + '}'; |
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} |
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return raw; |
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}, ''); |
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} |