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script: move CheckMinimalPush from interpreter to script.h

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It is used by Miniscript.
This commit is contained in:
Antoine Poinsot
2021-09-27 13:12:03 +02:00
parent 31ec6ae92a
commit f4e289f384
4 changed files with 27 additions and 27 deletions
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25
src/script/interpreter.cpp
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@@ -225,31 +225,6 @@ bool static CheckPubKeyEncoding(const valtype &vchPubKey, unsigned int flags, co
return true;
}
bool CheckMinimalPush(const valtype& data, opcodetype opcode) {
// Excludes OP_1NEGATE, OP_1-16 since they are by definition minimal
assert(0 <= opcode && opcode <= OP_PUSHDATA4);
if (data.size() == 0) {
// Should have used OP_0.
return opcode == OP_0;
} else if (data.size() == 1 && data[0] >= 1 && data[0] <= 16) {
// Should have used OP_1 .. OP_16.
return false;
} else if (data.size() == 1 && data[0] == 0x81) {
// Should have used OP_1NEGATE.
return false;
} else if (data.size() <= 75) {
// Must have used a direct push (opcode indicating number of bytes pushed + those bytes).
return opcode == data.size();
} else if (data.size() <= 255) {
// Must have used OP_PUSHDATA.
return opcode == OP_PUSHDATA1;
} else if (data.size() <= 65535) {
// Must have used OP_PUSHDATA2.
return opcode == OP_PUSHDATA2;
}
return true;
}
int FindAndDelete(CScript& script, const CScript& b)
{
int nFound = 0;