'use strict';
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var Type = require('../type');
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var _toString = Object.prototype.toString;
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function resolveYamlPairs(data) {
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if (data === null) return true;
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var index, length, pair, keys, result,
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object = data;
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result = new Array(object.length);
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for (index = 0, length = object.length; index < length; index += 1) {
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pair = object[index];
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if (_toString.call(pair) !== '[object Object]') return false;
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keys = Object.keys(pair);
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if (keys.length !== 1) return false;
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result[index] = [ keys[0], pair[keys[0]] ];
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}
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return true;
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}
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function constructYamlPairs(data) {
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if (data === null) return [];
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var index, length, pair, keys, result,
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object = data;
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result = new Array(object.length);
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for (index = 0, length = object.length; index < length; index += 1) {
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pair = object[index];
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keys = Object.keys(pair);
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result[index] = [ keys[0], pair[keys[0]] ];
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}
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return result;
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}
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module.exports = new Type('tag:yaml.org,2002:pairs', {
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kind: 'sequence',
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resolve: resolveYamlPairs,
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construct: constructYamlPairs
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});
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