Current File : //var/www/html/node_modules/jsx-ast-utils/lib/values/expressions/LogicalExpression.js
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = extractValueFromLogicalExpression;
/**
* Extractor function for a LogicalExpression type value node.
* A logical expression is `a && b` or `a || b`, so we evaluate both sides
* and return the extracted value of the expression.
*
* @param - value - AST Value object with type `LogicalExpression`
* @returns - The extracted value converted to correct type.
*/
function extractValueFromLogicalExpression(value) {
// eslint-disable-next-line global-require
var getValue = require('.').default;
var operator = value.operator,
left = value.left,
right = value.right;
var leftVal = getValue(left);
var rightVal = getValue(right);
if (operator === '&&') {
return leftVal && rightVal;
}
if (operator === '??') {
// return leftVal ?? rightVal; // TODO: update to babel 7
return leftVal === null || typeof leftVal === 'undefined' ? rightVal : leftVal;
}
return leftVal || rightVal;
}
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