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-rw-r--r--src/script/compressor.h89
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diff --git a/src/script/compressor.h b/src/script/compressor.h
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--- a/src/script/compressor.h
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#ifndef H_BITCOIN_SCRIPT_COMPRESSOR
-#define H_BITCOIN_SCRIPT_COMPRESSOR
-
-#include "script/script.h"
-#include "serialize.h"
-
-class CKeyID;
-class CPubKey;
-class CScriptID;
-
-/** Compact serializer for scripts.
- *
- * It detects common cases and encodes them much more efficiently.
- * 3 special cases are defined:
- * * Pay to pubkey hash (encoded as 21 bytes)
- * * Pay to script hash (encoded as 21 bytes)
- * * Pay to pubkey starting with 0x02, 0x03 or 0x04 (encoded as 33 bytes)
- *
- * Other scripts up to 121 bytes require 1 byte + script length. Above
- * that, scripts up to 16505 bytes require 2 bytes + script length.
- */
-class CScriptCompressor
-{
-private:
- // make this static for now (there are only 6 special scripts defined)
- // this can potentially be extended together with a new nVersion for
- // transactions, in which case this value becomes dependent on nVersion
- // and nHeight of the enclosing transaction.
- static const unsigned int nSpecialScripts = 6;
-
- CScript &script;
-protected:
- // These check for scripts for which a special case with a shorter encoding is defined.
- // They are implemented separately from the CScript test, as these test for exact byte
- // sequence correspondences, and are more strict. For example, IsToPubKey also verifies
- // whether the public key is valid (as invalid ones cannot be represented in compressed
- // form).
- bool IsToKeyID(CKeyID &hash) const;
- bool IsToScriptID(CScriptID &hash) const;
- bool IsToPubKey(CPubKey &pubkey) const;
-
- bool Compress(std::vector<unsigned char> &out) const;
- unsigned int GetSpecialSize(unsigned int nSize) const;
- bool Decompress(unsigned int nSize, const std::vector<unsigned char> &out);
-public:
- CScriptCompressor(CScript &scriptIn) : script(scriptIn) { }
-
- unsigned int GetSerializeSize(int nType, int nVersion) const {
- std::vector<unsigned char> compr;
- if (Compress(compr))
- return compr.size();
- unsigned int nSize = script.size() + nSpecialScripts;
- return script.size() + VARINT(nSize).GetSerializeSize(nType, nVersion);
- }
-
- template<typename Stream>
- void Serialize(Stream &s, int nType, int nVersion) const {
- std::vector<unsigned char> compr;
- if (Compress(compr)) {
- s << CFlatData(compr);
- return;
- }
- unsigned int nSize = script.size() + nSpecialScripts;
- s << VARINT(nSize);
- s << CFlatData(script);
- }
-
- template<typename Stream>
- void Unserialize(Stream &s, int nType, int nVersion) {
- unsigned int nSize = 0;
- s >> VARINT(nSize);
- if (nSize < nSpecialScripts) {
- std::vector<unsigned char> vch(GetSpecialSize(nSize), 0x00);
- s >> REF(CFlatData(vch));
- Decompress(nSize, vch);
- return;
- }
- nSize -= nSpecialScripts;
- script.resize(nSize);
- s >> REF(CFlatData(script));
- }
-};
-
-#endif // H_BITCOIN_SCRIPT_COMPRESSOR