From 76a9aacd3fb75d5e0854e53bb3376f2ab603a561 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Sat, 8 Jul 2017 16:43:34 -0700
Subject: Move compressor utility functions out of class

---
 src/compressor.h | 31 ++++++++++---------------------
 1 file changed, 10 insertions(+), 21 deletions(-)

(limited to 'src/compressor.h')

diff --git a/src/compressor.h b/src/compressor.h
index 6fcecd27e9..561c8e66d0 100644
--- a/src/compressor.h
+++ b/src/compressor.h
@@ -14,6 +14,13 @@ class CKeyID;
 class CPubKey;
 class CScriptID;
 
+bool CompressScript(const CScript& script, std::vector<unsigned char> &out);
+unsigned int GetSpecialScriptSize(unsigned int nSize);
+bool DecompressScript(CScript& script, unsigned int nSize, const std::vector<unsigned char> &out);
+
+uint64_t CompressAmount(uint64_t nAmount);
+uint64_t DecompressAmount(uint64_t nAmount);
+
 /** Compact serializer for scripts.
  *
  *  It detects common cases and encodes them much more efficiently.
@@ -37,28 +44,13 @@ private:
     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:
     explicit CScriptCompressor(CScript &scriptIn) : script(scriptIn) { }
 
     template<typename Stream>
     void Serialize(Stream &s) const {
         std::vector<unsigned char> compr;
-        if (Compress(compr)) {
+        if (CompressScript(script, compr)) {
             s << CFlatData(compr);
             return;
         }
@@ -72,9 +64,9 @@ public:
         unsigned int nSize = 0;
         s >> VARINT(nSize);
         if (nSize < nSpecialScripts) {
-            std::vector<unsigned char> vch(GetSpecialSize(nSize), 0x00);
+            std::vector<unsigned char> vch(GetSpecialScriptSize(nSize), 0x00);
             s >> CFlatData(vch);
-            Decompress(nSize, vch);
+            DecompressScript(script, nSize, vch);
             return;
         }
         nSize -= nSpecialScripts;
@@ -96,9 +88,6 @@ private:
     CTxOut &txout;
 
 public:
-    static uint64_t CompressAmount(uint64_t nAmount);
-    static uint64_t DecompressAmount(uint64_t nAmount);
-
     explicit CTxOutCompressor(CTxOut &txoutIn) : txout(txoutIn) { }
 
     ADD_SERIALIZE_METHODS;
-- 
cgit v1.2.3