txscript: Remove unused isPushOnly function.
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1 changed files with 1 additions and 25 deletions
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@ -161,26 +161,6 @@ func ExtractWitnessProgramInfo(script []byte) (int, []byte, error) {
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return witnessVersion, witnessProgram, nil
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}
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// isPushOnly returns true if the script only pushes data, false otherwise.
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//
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// DEPRECATED. Use IsPushOnlyScript instead.
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func isPushOnly(pops []parsedOpcode) bool {
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// NOTE: This function does NOT verify opcodes directly since it is
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// internal and is only called with parsed opcodes for scripts that did
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// not have any parse errors. Thus, consensus is properly maintained.
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for _, pop := range pops {
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// All opcodes up to OP_16 are data push instructions.
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// NOTE: This does consider OP_RESERVED to be a data push
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// instruction, but execution of OP_RESERVED will fail anyways
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// and matches the behavior required by consensus.
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if pop.opcode.value > OP_16 {
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return false
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}
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}
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return true
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}
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// IsPushOnlyScript returns whether or not the passed script only pushes data
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// according to the consensus definition of pushing data.
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//
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@ -901,11 +881,7 @@ func GetWitnessSigOpCount(sigScript, pkScript []byte, witness wire.TxWitness) in
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// Next, we'll check the sigScript to see if this is a nested p2sh
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// witness program. This is a case wherein the sigScript is actually a
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// datapush of a p2wsh witness program.
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sigPops, err := parseScript(sigScript)
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if err != nil {
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return 0
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}
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if IsPayToScriptHash(pkScript) && isPushOnly(sigPops) &&
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if IsPayToScriptHash(pkScript) && IsPushOnlyScript(sigScript) &&
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IsWitnessProgram(sigScript[1:]) {
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return getWitnessSigOps(sigScript[1:], witness)
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}
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