fr.acinq.bitcoin.ScriptElt.scala Maven / Gradle / Ivy
package fr.acinq.bitcoin
import fr.acinq.bitcoin.Crypto.PublicKey
import scodec.bits.ByteVector
// @formatter:off
abstract class ScriptElt
case object OP_0 extends ScriptElt
case object OP_PUSHDATA1 extends ScriptElt
case object OP_PUSHDATA2 extends ScriptElt
case object OP_PUSHDATA4 extends ScriptElt
case object OP_1NEGATE extends ScriptElt
case object OP_RESERVED extends ScriptElt
case object OP_1 extends ScriptElt
case object OP_2 extends ScriptElt
case object OP_3 extends ScriptElt
case object OP_4 extends ScriptElt
case object OP_5 extends ScriptElt
case object OP_6 extends ScriptElt
case object OP_7 extends ScriptElt
case object OP_8 extends ScriptElt
case object OP_9 extends ScriptElt
case object OP_10 extends ScriptElt
case object OP_11 extends ScriptElt
case object OP_12 extends ScriptElt
case object OP_13 extends ScriptElt
case object OP_14 extends ScriptElt
case object OP_15 extends ScriptElt
case object OP_16 extends ScriptElt
case object OP_NOP extends ScriptElt
case object OP_VER extends ScriptElt
case object OP_IF extends ScriptElt
case object OP_NOTIF extends ScriptElt
case object OP_VERIF extends ScriptElt
case object OP_VERNOTIF extends ScriptElt
case object OP_ELSE extends ScriptElt
case object OP_ENDIF extends ScriptElt
case object OP_VERIFY extends ScriptElt
case object OP_RETURN extends ScriptElt
case object OP_TOALTSTACK extends ScriptElt
case object OP_FROMALTSTACK extends ScriptElt
case object OP_2DROP extends ScriptElt
case object OP_2DUP extends ScriptElt
case object OP_3DUP extends ScriptElt
case object OP_2OVER extends ScriptElt
case object OP_2ROT extends ScriptElt
case object OP_2SWAP extends ScriptElt
case object OP_IFDUP extends ScriptElt
case object OP_DEPTH extends ScriptElt
case object OP_DROP extends ScriptElt
case object OP_DUP extends ScriptElt
case object OP_NIP extends ScriptElt
case object OP_OVER extends ScriptElt
case object OP_PICK extends ScriptElt
case object OP_ROLL extends ScriptElt
case object OP_ROT extends ScriptElt
case object OP_SWAP extends ScriptElt
case object OP_TUCK extends ScriptElt
case object OP_CAT extends ScriptElt
case object OP_SUBSTR extends ScriptElt
case object OP_LEFT extends ScriptElt
case object OP_RIGHT extends ScriptElt
case object OP_SIZE extends ScriptElt
case object OP_INVERT extends ScriptElt
case object OP_AND extends ScriptElt
case object OP_OR extends ScriptElt
case object OP_XOR extends ScriptElt
case object OP_EQUAL extends ScriptElt
case object OP_EQUALVERIFY extends ScriptElt
case object OP_RESERVED1 extends ScriptElt
case object OP_RESERVED2 extends ScriptElt
case object OP_1ADD extends ScriptElt
case object OP_1SUB extends ScriptElt
case object OP_2MUL extends ScriptElt
case object OP_2DIV extends ScriptElt
case object OP_NEGATE extends ScriptElt
case object OP_ABS extends ScriptElt
case object OP_NOT extends ScriptElt
case object OP_0NOTEQUAL extends ScriptElt
case object OP_ADD extends ScriptElt
case object OP_SUB extends ScriptElt
case object OP_MUL extends ScriptElt
case object OP_DIV extends ScriptElt
case object OP_MOD extends ScriptElt
case object OP_LSHIFT extends ScriptElt
case object OP_RSHIFT extends ScriptElt
case object OP_BOOLAND extends ScriptElt
case object OP_BOOLOR extends ScriptElt
case object OP_NUMEQUAL extends ScriptElt
case object OP_NUMEQUALVERIFY extends ScriptElt
case object OP_NUMNOTEQUAL extends ScriptElt
case object OP_LESSTHAN extends ScriptElt
case object OP_GREATERTHAN extends ScriptElt
case object OP_LESSTHANOREQUAL extends ScriptElt
case object OP_GREATERTHANOREQUAL extends ScriptElt
case object OP_MIN extends ScriptElt
case object OP_MAX extends ScriptElt
case object OP_WITHIN extends ScriptElt
case object OP_RIPEMD160 extends ScriptElt
case object OP_SHA1 extends ScriptElt
case object OP_SHA256 extends ScriptElt
case object OP_HASH160 extends ScriptElt
case object OP_HASH256 extends ScriptElt
case object OP_CODESEPARATOR extends ScriptElt
case object OP_CHECKSIG extends ScriptElt
case object OP_CHECKSIGVERIFY extends ScriptElt
case object OP_CHECKMULTISIG extends ScriptElt
case object OP_CHECKMULTISIGVERIFY extends ScriptElt
case object OP_NOP1 extends ScriptElt
case object OP_CHECKLOCKTIMEVERIFY extends ScriptElt
case object OP_CHECKSEQUENCEVERIFY extends ScriptElt
case object OP_NOP4 extends ScriptElt
case object OP_NOP5 extends ScriptElt
case object OP_NOP6 extends ScriptElt
case object OP_NOP7 extends ScriptElt
case object OP_NOP8 extends ScriptElt
case object OP_NOP9 extends ScriptElt
case object OP_NOP10 extends ScriptElt
case object OP_SMALLINTEGER extends ScriptElt
case object OP_INVALIDOPCODE extends ScriptElt
object OP_PUSHDATA {
def apply(data: ByteVector) = if (data.length < 0x4c) new OP_PUSHDATA(data, data.size.toInt)
else if (data.length < 0xff) new OP_PUSHDATA(data, 0x4c)
else if (data.length < 0xffff) new OP_PUSHDATA(data, 0x4d)
else if (data.length < 0xffffffff) new OP_PUSHDATA(data, 0x4e)
else throw new IllegalArgumentException(s"data is ${data.length}, too big for OP_PUSHDATA")
def apply(pub: PublicKey): OP_PUSHDATA = OP_PUSHDATA(pub.value)
def isMinimal(data: ByteVector, code: Int): Boolean = if (data.length == 0) code == ScriptElt.elt2code(OP_0)
else if (data.length == 1 && data(0) >= 1 && data(0) <= 16) code == ScriptElt.elt2code(OP_1) + (data(0) - 1)
else if (data.length == 1 && data(0) == 0x81.toByte) code == ScriptElt.elt2code(OP_1NEGATE)
else if (data.length <= 75) code == data.length
else if (data.length <= 255) code == ScriptElt.elt2code(OP_PUSHDATA1)
else if (data.length <= 65535) code == ScriptElt.elt2code(OP_PUSHDATA2)
else true
}
case class OP_PUSHDATA(data: ByteVector, code: Int) extends ScriptElt {
override def toString = data.toString
}
case class OP_INVALID(code: Int) extends ScriptElt
// @formatter:off
object ScriptElt {
// code -> ScriptElt
val code2elt: Map[Int, ScriptElt] = Map(
0x00 -> OP_0,
0x4c -> OP_PUSHDATA1,
0x4d -> OP_PUSHDATA2,
0x4e -> OP_PUSHDATA4,
0x4f -> OP_1NEGATE,
0x50 -> OP_RESERVED,
0x51 -> OP_1,
0x52 -> OP_2,
0x53 -> OP_3,
0x54 -> OP_4,
0x55 -> OP_5,
0x56 -> OP_6,
0x57 -> OP_7,
0x58 -> OP_8,
0x59 -> OP_9,
0x5a -> OP_10,
0x5b -> OP_11,
0x5c -> OP_12,
0x5d -> OP_13,
0x5e -> OP_14,
0x5f -> OP_15,
0x60 -> OP_16,
0x61 -> OP_NOP,
0x62 -> OP_VER,
0x63 -> OP_IF,
0x64 -> OP_NOTIF,
0x65 -> OP_VERIF,
0x66 -> OP_VERNOTIF,
0x67 -> OP_ELSE,
0x68 -> OP_ENDIF,
0x69 -> OP_VERIFY,
0x6a -> OP_RETURN,
0x6b -> OP_TOALTSTACK,
0x6c -> OP_FROMALTSTACK,
0x6d -> OP_2DROP,
0x6e -> OP_2DUP,
0x6f -> OP_3DUP,
0x70 -> OP_2OVER,
0x71 -> OP_2ROT,
0x72 -> OP_2SWAP,
0x73 -> OP_IFDUP,
0x74 -> OP_DEPTH,
0x75 -> OP_DROP,
0x76 -> OP_DUP,
0x77 -> OP_NIP,
0x78 -> OP_OVER,
0x79 -> OP_PICK,
0x7a -> OP_ROLL,
0x7b -> OP_ROT,
0x7c -> OP_SWAP,
0x7d -> OP_TUCK,
0x7e -> OP_CAT,
0x7f -> OP_SUBSTR,
0x80 -> OP_LEFT,
0x81 -> OP_RIGHT,
0x82 -> OP_SIZE,
0x83 -> OP_INVERT,
0x84 -> OP_AND,
0x85 -> OP_OR,
0x86 -> OP_XOR,
0x87 -> OP_EQUAL,
0x88 -> OP_EQUALVERIFY,
0x89 -> OP_RESERVED1,
0x8a -> OP_RESERVED2,
0x8b -> OP_1ADD,
0x8c -> OP_1SUB,
0x8d -> OP_2MUL,
0x8e -> OP_2DIV,
0x8f -> OP_NEGATE,
0x90 -> OP_ABS,
0x91 -> OP_NOT,
0x92 -> OP_0NOTEQUAL,
0x93 -> OP_ADD,
0x94 -> OP_SUB,
0x95 -> OP_MUL,
0x96 -> OP_DIV,
0x97 -> OP_MOD,
0x98 -> OP_LSHIFT,
0x99 -> OP_RSHIFT,
0x9a -> OP_BOOLAND,
0x9b -> OP_BOOLOR,
0x9c -> OP_NUMEQUAL,
0x9d -> OP_NUMEQUALVERIFY,
0x9e -> OP_NUMNOTEQUAL,
0x9f -> OP_LESSTHAN,
0xa0 -> OP_GREATERTHAN,
0xa1 -> OP_LESSTHANOREQUAL,
0xa2 -> OP_GREATERTHANOREQUAL,
0xa3 -> OP_MIN,
0xa4 -> OP_MAX,
0xa5 -> OP_WITHIN,
0xa6 -> OP_RIPEMD160,
0xa7 -> OP_SHA1,
0xa8 -> OP_SHA256,
0xa9 -> OP_HASH160,
0xaa -> OP_HASH256,
0xab -> OP_CODESEPARATOR,
0xac -> OP_CHECKSIG,
0xad -> OP_CHECKSIGVERIFY,
0xae -> OP_CHECKMULTISIG,
0xaf -> OP_CHECKMULTISIGVERIFY,
0xb0 -> OP_NOP1,
0xb1 -> OP_CHECKLOCKTIMEVERIFY,
0xb2 -> OP_CHECKSEQUENCEVERIFY,
0xb3 -> OP_NOP4,
0xb4 -> OP_NOP5,
0xb5 -> OP_NOP6,
0xb6 -> OP_NOP7,
0xb7 -> OP_NOP8,
0xb8 -> OP_NOP9,
0xb9 -> OP_NOP10,
0xfa -> OP_SMALLINTEGER,
0xff -> OP_INVALIDOPCODE)
// ScriptElt -> code
val elt2code: Map[ScriptElt, Int] = code2elt.map(_.swap)
// name -> code
val name2code = code2elt.view.mapValues(_.asInstanceOf[Product].productPrefix.stripPrefix("OP_")).map(_.swap).toMap + ("NOP2" -> 0xb1) + ("NOP3" -> 0xb2)
def isPush(op: ScriptElt, size: Int): Boolean = {
op match {
case OP_PUSHDATA(data, _) => data.length == size
case _ => false
}
}
}
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