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5 | export function errtion(opts, parent) {
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6 |
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7 | var code = opts.code, level = opts.level;
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8 | var message = opts.message;
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9 | if (parent == null)
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10 | parent = opts.parent;
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11 |
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12 | if (code)
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13 | message = code + ": " + message;
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14 | if (level)
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15 | message = level + ": " + message;
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16 | if (parent)
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17 | message = message + "\n\u21AA" + (parent.message || parent);
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18 |
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19 | var error = new Error(message);
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20 |
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21 | if (code)
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22 | error.code = code;
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23 | if (level)
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24 | error.level = level;
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25 | if (parent)
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26 | error.parent = parent;
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27 |
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28 | return error;
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29 | }
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