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{{# def.definitions }}
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{{# def.errors }}
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{{# def.setupKeyword }}
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{{# def.$data }}
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{{? ($schema || $isData) && it.opts.uniqueItems !== false }}
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  {{? $isData }}
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    var {{=$valid}};
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    if ({{=$schemaValue}} === false || {{=$schemaValue}} === undefined)
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      {{=$valid}} = true;
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    else if (typeof {{=$schemaValue}} != 'boolean')
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      {{=$valid}} = false;
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    else {
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  {{?}}
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  var i = {{=$data}}.length
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    , {{=$valid}} = true
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    , j;
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  if (i > 1) {
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    {{
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      var $itemType = it.schema.items && it.schema.items.type
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        , $typeIsArray = Array.isArray($itemType);
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    }}
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    {{? !$itemType || $itemType == 'object' || $itemType == 'array' ||
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        ($typeIsArray && ($itemType.indexOf('object') >= 0 || $itemType.indexOf('array') >= 0)) }}
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      outer:
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      for (;i--;) {
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        for (j = i; j--;) {
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          if (equal({{=$data}}[i], {{=$data}}[j])) {
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            {{=$valid}} = false;
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            break outer;
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          }
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        }
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      }
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    {{??}}
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      var itemIndices = {}, item;
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      for (;i--;) {
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        var item = {{=$data}}[i];
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        {{ var $method = 'checkDataType' + ($typeIsArray ? 's' : ''); }}
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        if ({{= it.util[$method]($itemType, 'item', true) }}) continue;
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        {{? $typeIsArray}}
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          if (typeof item == 'string') item = '"' + item;
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        {{?}}
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        if (typeof itemIndices[item] == 'number') {
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          {{=$valid}} = false;
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          j = itemIndices[item];
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          break;
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        }
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        itemIndices[item] = i;
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      }
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    {{?}}
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  }
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  {{? $isData }}  }  {{?}}
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  if (!{{=$valid}}) {
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    {{# def.error:'uniqueItems' }}
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  } {{? $breakOnError }} else { {{?}}
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{{??}}
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  {{? $breakOnError }} if (true) { {{?}}
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{{?}}
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