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33 lines
1023 B
33 lines
1023 B
'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 = extractValueFromLogicalExpression; |
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/** |
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* Extractor function for a LogicalExpression type value node. |
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* A logical expression is `a && b` or `a || b`, so we evaluate both sides |
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* and return the extracted value of the expression. |
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* |
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* @param - value - AST Value object with type `LogicalExpression` |
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* @returns - The extracted value converted to correct type. |
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*/ |
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function extractValueFromLogicalExpression(value) { |
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// eslint-disable-next-line global-require |
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var getValue = require('.').default; |
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var operator = value.operator, |
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left = value.left, |
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right = value.right; |
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var leftVal = getValue(left); |
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var rightVal = getValue(right); |
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if (operator === '&&') { |
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return leftVal && rightVal; |
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} |
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if (operator === '??') { |
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// return leftVal ?? rightVal; // TODO: update to babel 7 |
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return leftVal === null || typeof leftVal === 'undefined' ? rightVal : leftVal; |
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} |
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return leftVal || rightVal; |
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} |