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<?php
namespace BitWasp\Bitcoin\Script;
class Opcodes implements \ArrayAccess
{
const OP_0 = 0;
const OP_PUSHDATA1 = 76;
const OP_PUSHDATA2 = 77;
const OP_PUSHDATA4 = 78;
const OP_1NEGATE = 79;
const OP_1 = 81;
const OP_2 = 82;
const OP_3 = 83;
const OP_4 = 84;
const OP_5 = 85;
const OP_6 = 86;
const OP_7 = 87;
const OP_8 = 88;
const OP_9 = 89;
const OP_10 = 90;
const OP_11 = 91;
const OP_12 = 92;
const OP_13 = 93;
const OP_14 = 94;
const OP_15 = 95;
const OP_16 = 96;
// Flow Control
const OP_NOP = 97;
const OP_IF = 99;
const OP_NOTIF = 100;
const OP_ELSE = 103;
const OP_ENDIF = 104;
const OP_VERIFY = 105;
const OP_RETURN = 106;
const OP_TOALTSTACK = 107;
const OP_FROMALTSTACK = 108;
const OP_IFDUP = 115;
const OP_DEPTH = 116;
const OP_DROP = 117;
const OP_DUP = 118;
const OP_NIP = 119;
const OP_OVER = 120;
const OP_PICK = 121;
const OP_ROLL = 122;
const OP_ROT = 123;
const OP_SWAP = 124;
const OP_TUCK = 125;
const OP_2DROP = 109;
const OP_2DUP = 110;
const OP_3DUP = 111;
const OP_2OVER = 112;
const OP_2ROT = 113;
const OP_2SWAP = 114;
// Splice
const OP_CAT = 126; /* disabled */
const OP_SUBSTR = 127; /* disabled */
const OP_LEFT = 128; /* disabled */
const OP_RIGHT = 129; /* disabled */
const OP_SIZE = 130; /* disabled */
// Bitwise logic
const OP_INVERT = 131; /* Disabled */
const OP_AND = 132; /* Disabled */
const OP_OR = 133; /* Disabled */
const OP_XOR = 134; /* Disabled */
const OP_EQUAL = 135;
const OP_EQUALVERIFY = 136;
// Arithmetic
const OP_1ADD = 139;
const OP_1SUB = 140;
const OP_2MUL = 141;
const OP_2DIV = 142;
const OP_NEGATE = 143;
const OP_ABS = 144;
const OP_NOT = 145;
const OP_0NOTEQUAL = 146;
const OP_ADD = 147;
const OP_SUB = 148;
const OP_MUL = 149;
const OP_DIV = 150;
const OP_MOD = 151;
const OP_LSHIFT = 152;
const OP_RSHIFT = 153;
const OP_BOOLAND = 154;
const OP_BOOLOR = 155;
const OP_NUMEQUAL = 156;
const OP_NUMEQUALVERIFY = 157;
const OP_NUMNOTEQUAL = 158;
const OP_LESSTHAN = 159;
const OP_GREATERTHAN = 160;
const OP_LESSTHANOREQUAL = 161;
const OP_GREATERTHANOREQUAL = 162;
const OP_MIN = 163;
const OP_MAX = 164;
const OP_WITHIN = 165;
// Crypto
const OP_RIPEMD160 = 166;
const OP_SHA1 = 167;
const OP_SHA256 = 168;
const OP_HASH160 = 169;
const OP_HASH256 = 170;
const OP_CODESEPARATOR = 171;
const OP_CHECKSIG = 172;
const OP_CHECKSIGVERIFY = 173;
const OP_CHECKMULTISIG = 174;
const OP_CHECKMULTISIGVERIFY = 175;
// Pseudo Words
const OP_PUBKEYHASH = 253;
const OP_PUBKEY = 254;
const OP_INVALIDOPCODE = 255;
// Reserved
// So are any which are not assigned
const OP_RESERVED = 80;
const OP_VER = 98;
const OP_VERIF = 101;
const OP_VERNOTIF = 102;
const OP_RESERVED1 = 137;
const OP_RESERVED2 = 138;
const OP_NOP1 = 176;
const OP_CHECKLOCKTIMEVERIFY = 177;
const OP_CHECKSEQUENCEVERIFY = 178;
const OP_NOP4 = 179;
const OP_NOP5 = 180;
const OP_NOP6 = 181;
const OP_NOP7 = 182;
const OP_NOP8 = 183;
const OP_NOP9 = 184;
const OP_NOP10 = 185;
/**
* @var array
*/
private static $names = [
self::OP_0 => 'OP_0',
self::OP_PUSHDATA1 => 'OP_PUSHDATA1',
self::OP_PUSHDATA2 => 'OP_PUSHDATA2',
self::OP_PUSHDATA4 => 'OP_PUSHDATA4',
self::OP_1NEGATE => 'OP_1NEGATE',
self::OP_1 => 'OP_1',
self::OP_2 => 'OP_2',
self::OP_3 => 'OP_3',
self::OP_4 => 'OP_4',
self::OP_5 => 'OP_5',
self::OP_6 => 'OP_6',
self::OP_7 => 'OP_7',
self::OP_8 => 'OP_8',
self::OP_9 => 'OP_9',
self::OP_10 => 'OP_10',
self::OP_11 => 'OP_11',
self::OP_12 => 'OP_12',
self::OP_13 => 'OP_13',
self::OP_14 => 'OP_14',
self::OP_15 => 'OP_15',
self::OP_16 => 'OP_16',
// Flow Control
self::OP_NOP => 'OP_NOP',
self::OP_IF => 'OP_IF',
self::OP_NOTIF => 'OP_NOTIF',
self::OP_ELSE => 'OP_ELSE',
self::OP_ENDIF => 'OP_ENDIF',
self::OP_VERIFY => 'OP_VERIFY',
self::OP_RETURN => 'OP_RETURN',
self::OP_TOALTSTACK => 'OP_TOALTSTACK',
self::OP_FROMALTSTACK => 'OP_FROMALTSTACK',
self::OP_IFDUP => 'OP_IFDUP',
self::OP_DEPTH => 'OP_DEPTH',
self::OP_DROP => 'OP_DROP',
self::OP_DUP => 'OP_DUP',
self::OP_NIP => 'OP_NIP',
self::OP_OVER => 'OP_OVER',
self::OP_PICK => 'OP_PICK',
self::OP_ROLL => 'OP_ROLL',
self::OP_ROT => 'OP_ROT',
self::OP_SWAP => 'OP_SWAP',
self::OP_TUCK => 'OP_TUCK',
self::OP_2DROP => 'OP_2DROP',
self::OP_2DUP => 'OP_2DUP',
self::OP_3DUP => 'OP_3DUP',
self::OP_2OVER => 'OP_2OVER',
self::OP_2ROT => 'OP_2ROT',
self::OP_2SWAP => 'OP_2SWAP',
// Splice
self::OP_CAT => 'OP_CAT', /* disabled */
self::OP_SUBSTR => 'OP_SUBSTR', /* disabled */
self::OP_LEFT => 'OP_LEFT', /* disabled */
self::OP_RIGHT => 'OP_RIGHT', /* disabled */
self::OP_SIZE => 'OP_SIZE', /* disabled */
// Bitwise logic
self::OP_INVERT => 'OP_INVERT', /* Disabled */
self::OP_AND => 'OP_AND', /* Disabled */
self::OP_OR => 'OP_OR', /* Disabled */
self::OP_XOR => 'OP_XOR', /* Disabled */
self::OP_EQUAL => 'OP_EQUAL',
self::OP_EQUALVERIFY => 'OP_EQUALVERIFY',
// Arithmetic
self::OP_1ADD => 'OP_1ADD',
self::OP_1SUB => 'OP_1SUB',
self::OP_2MUL => 'OP_2MUL',
self::OP_2DIV => 'OP_2DIV',
self::OP_NEGATE => 'OP_NEGATE',
self::OP_ABS => 'OP_ABS',
self::OP_NOT => 'OP_NOT',
self::OP_0NOTEQUAL => 'OP_0NOTEQUAL',
self::OP_ADD => 'OP_ADD',
self::OP_SUB => 'OP_SUB',
self::OP_MUL => 'OP_MUL',
self::OP_DIV => 'OP_DIV',
self::OP_MOD => 'OP_MOD',
self::OP_LSHIFT => 'OP_LSHIFT',
self::OP_RSHIFT => 'OP_RSHIFT',
self::OP_BOOLAND => 'OP_BOOLAND',
self::OP_BOOLOR => 'OP_BOOLOR',
self::OP_NUMEQUAL => 'OP_NUMEQUAL',
self::OP_NUMEQUALVERIFY => 'OP_NUMEQUALVERIFY',
self::OP_NUMNOTEQUAL => 'OP_NUMNOTEQUAL',
self::OP_LESSTHAN => 'OP_LESSTHAN',
self::OP_GREATERTHAN => 'OP_GREATERTHAN',
self::OP_LESSTHANOREQUAL => 'OP_LESSTHANOREQUAL',
self::OP_GREATERTHANOREQUAL => 'OP_GREATERTHANOREQUAL',
self::OP_MIN => 'OP_MIN',
self::OP_MAX => 'OP_MAX',
self::OP_WITHIN => 'OP_WITHIN',
// Crypto
self::OP_RIPEMD160 => 'OP_RIPEMD160',
self::OP_SHA1 => 'OP_SHA1',
self::OP_SHA256 => 'OP_SHA256',
self::OP_HASH160 => 'OP_HASH160',
self::OP_HASH256 => 'OP_HASH256',
self::OP_CODESEPARATOR => 'OP_CODESEPARATOR',
self::OP_CHECKSIG => 'OP_CHECKSIG',
self::OP_CHECKSIGVERIFY => 'OP_CHECKSIGVERIFY',
self::OP_CHECKMULTISIG => 'OP_CHECKMULTISIG',
self::OP_CHECKMULTISIGVERIFY => 'OP_CHECKMULTISIGVERIFY',
// Pseudo Words
self::OP_PUBKEYHASH => 'OP_PUBKEYHASH',
self::OP_PUBKEY => 'OP_PUBKEY',
self::OP_INVALIDOPCODE => 'OP_INVALIDOPCODE',
// Reserved
// So are any which are not assigned
self::OP_RESERVED => 'OP_RESERVED',
self::OP_VER => 'OP_VER',
self::OP_VERIF => 'OP_VERIF',
self::OP_VERNOTIF => 'OP_VERNOTIF',
self::OP_RESERVED1 => 'OP_RESERVED1',
self::OP_RESERVED2 => 'OP_RESERVED2',
self::OP_NOP1 => 'OP_NOP1',
self::OP_CHECKLOCKTIMEVERIFY => 'OP_CHECKLOCKTIMEVERIFY',
self::OP_CHECKSEQUENCEVERIFY => 'OP_CHECKSEQUENCEVERIFY',
self::OP_NOP4 => 'OP_NOP4',
self::OP_NOP5 => 'OP_NOP5',
self::OP_NOP6 => 'OP_NOP6',
self::OP_NOP7 => 'OP_NOP7',
self::OP_NOP8 => 'OP_NOP8',
self::OP_NOP9 => 'OP_NOP9',
self::OP_NOP10 => 'OP_NOP10',
];
/**
* @var array
*/
private $known = [];
public function __construct()
{
$this->known = array_flip(self::$names);
}
/**
* @param integer $op
*/
private function opExists($op)
{
if (!array_key_exists($op, self::$names)) {
throw new \RuntimeException("Opcode not found");
}
}
/**
* @param string $name
*/
private function opNameExists($name)
{
if (!array_key_exists($name, $this->known)) {
throw new \RuntimeException("Opcode by that name not found");
}
}
/**
* @param int $op
* @return string
*/
public function getOp($op)
{
$this->opExists($op);
return self::$names[$op];
}
/**
* @param string $name
* @return int
*/
public function getOpByName($name)
{
$this->opNameExists($name);
return $this->known[$name];
}
/**
* @param int $opcode
* @return string
*/
public function offsetGet($opcode)
{
return $this->getOp($opcode);
}
/**
* @param int $opcode
* @return bool
*/
public function offsetExists($opcode)
{
return array_key_exists($opcode, self::$names);
}
private function errorNoWrite()
{
throw new \RuntimeException('Cannot write to Opcodes');
}
/**
* @param int $opcode
*/
public function offsetUnset($opcode)
{
$this->errorNoWrite();
}
/**
* @param int $opcode
* @param mixed $value
*/
public function offsetSet($opcode, $value)
{
$this->errorNoWrite();
}
/**
* @return array
*/
public function __debugInfo()
{
return [];
}
}
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