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pragma solidity ^0.4.11;<br/>

    contract ERC165 {

         function interfaceID() constant returns (uint)
         {
            bytes4[] sigs = type(this).signatures;
            uint mask = 0;
            for (var i = 0; i < sigs.length; i++)
            mask ^= uint(sigs[i]);
        return mask;
    }
}
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type(this) isn't valid Solidity code. I can't really suggest a fix, because I have no idea what you're trying to do.

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I think is something under development. That code come from here https://gist.github.com/axic/5d42693fab09acfa2fdd977f38805833

there is an issue in github for that: https://github.com/ethereum/solidity/issues/1447 seems to be a feature that we'll see on solc 0.5.1

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