36 lines
934 B
JavaScript
36 lines
934 B
JavaScript
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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export default function extractValueFromTemplateLiteral(value) {
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const {
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quasis,
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expressions,
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} = value;
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const partitions = quasis.concat(expressions);
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return partitions.sort(sortStarts).map(({ type, value: { raw } = {}, name }) => {
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if (type === 'TemplateElement') {
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return raw;
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}
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if (type === 'Identifier') {
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return name === 'undefined' ? name : `{${name}}`;
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}
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if (type.indexOf('Expression') > -1) {
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return `{${type}}`;
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}
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return '';
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}).join('');
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}
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