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Merge #13429: Return the script type from Solver

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984d72ec65 Return the script type from Solver (Ben Woosley)

Pull request description:

  Because false is synonymous with TX_NONSTANDARD, this conveys the same
  information and makes the handling explicitly based on script type,
  simplifying each call site.

  Prior to this change it was common for the return value to be ignored, or for the
  return value and TX_NONSTANDARD to be redundantly handled.

Tree-SHA512: 31864f856b8cb75f4b782d12678070e8b1cfe9665c6f57cfb25e7ac8bcea8a22f9a78d7c8cf0101c841f2a612400666fb91798bffe88de856e98b873703b0965
This commit is contained in:
Wladimir J. van der Laan 2018-08-25 17:32:39 +02:00
commit 4cef8e0593
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GPG key ID: 1E4AED62986CD25D
10 changed files with 62 additions and 98 deletions
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10
src/script/sign.cpp
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@ -101,8 +101,7 @@ static bool SignStep(const SigningProvider& provider, const BaseSignatureCreator
std::vector<unsigned char> sig;
std::vector<valtype> vSolutions;
if (!Solver(scriptPubKey, whichTypeRet, vSolutions))
return false;
whichTypeRet = Solver(scriptPubKey, vSolutions);
switch (whichTypeRet)
{
@ -329,9 +328,8 @@ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nI
}
// Get scripts
txnouttype script_type;
std::vector<std::vector<unsigned char>> solutions;
Solver(txout.scriptPubKey, script_type, solutions);
txnouttype script_type = Solver(txout.scriptPubKey, solutions);
SigVersion sigversion = SigVersion::BASE;
CScript next_script = txout.scriptPubKey;
@ -342,7 +340,7 @@ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nI
next_script = std::move(redeem_script);
// Get redeemScript type
Solver(next_script, script_type, solutions);
script_type = Solver(next_script, solutions);
stack.script.pop_back();
}
if (script_type == TX_WITNESS_V0_SCRIPTHASH && !stack.witness.empty() && !stack.witness.back().empty()) {
@ -352,7 +350,7 @@ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nI
next_script = std::move(witness_script);
// Get witnessScript type
Solver(next_script, script_type, solutions);
script_type = Solver(next_script, solutions);
stack.witness.pop_back();
stack.script = std::move(stack.witness);
stack.witness.clear();