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Move IsPushOnly() to script.cpp

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This commit is contained in:
Pieter Wuille 2013-09-24 00:45:18 +02:00
parent d5fa3eff03
commit 9aea601b05
2 changed files with 19 additions and 17 deletions
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18
src/script.cpp
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@ -1863,6 +1863,24 @@ bool CScript::IsPayToScriptHash() const
this->at(22) == OP_EQUAL);
}
bool CScript::IsPushOnly() const
{
const_iterator pc = begin();
while (pc < end())
{
opcodetype opcode;
if (!GetOp(pc, opcode))
return false;
// Note that IsPushOnly() *does* consider OP_RESERVED to be a
// push-type opcode, however execution of OP_RESERVED fails, so
// it's not relevant to P2SH as the scriptSig would fail prior to
// the P2SH special validation code being executed.
if (opcode > OP_16)
return false;
}
return true;
}
class CScriptVisitor : public boost::static_visitor<bool>
{
private:

18
src/script.h
View File

@ -542,23 +542,7 @@ public:
bool IsPayToScriptHash() const;
// Called by IsStandardTx
bool IsPushOnly() const
{
const_iterator pc = begin();
while (pc < end())
{
opcodetype opcode;
if (!GetOp(pc, opcode))
return false;
// Note that IsPushOnly() *does* consider OP_RESERVED to be a
// push-type opcode, however execution of OP_RESERVED fails, so
// it's not relevant to P2SH as the scriptSig would fail prior to
// the P2SH special validation code being executed.
if (opcode > OP_16)
return false;
}
return true;
}
bool IsPushOnly() const;
// Returns whether the script is guaranteed to fail at execution,
// regardless of the initial stack. This allows outputs to be pruned