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'use strict';

var Node = require('../nodes/Node.js');

function mapIncludes(ctx, items, search) {
    const { uniqueKeys } = ctx.options;
    if (uniqueKeys === false)
        return false;
    const isEqual = typeof uniqueKeys === 'function'
        ? uniqueKeys
        : (a, b) => a === b ||
            (Node.isScalar(a) &&
                Node.isScalar(b) &&
                a.value === b.value &&
                !(a.value === '<<' && ctx.schema.merge));
    return items.some(pair => isEqual(pair.key, search));
}

exports.mapIncludes = mapIncludes;