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browser: return error for double end().

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Christopher Jeffrey 2016-08-27 15:58:50 -07:00
parent cf0e630e4e
commit eb6aec9888
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1 changed files with 2 additions and 0 deletions
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lib/db/level.js
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@ -144,6 +144,8 @@ Iterator.prototype.seek = function seek(key) {
}; };
Iterator.prototype.end = function end(callback) { Iterator.prototype.end = function end(callback) {
if (this._end)
return callback(new Error('end() already called on iterator.'));
this._end = true; this._end = true;
this.iter.end(callback); this.iter.end(callback);
}; };