Struct Code 

pub struct Code(pub Vec<u8>);

Serialized script, used inside transaction inputs and outputs

Tuple Fields

0: Vec<u8>

Implementations

impl Code

pub fn parse(&self) -> Parser<'_>

Produce an Opcode iterator from Code.

pub fn annotate(&self, flags: &Flags) -> Vec<Result<Opcode, Vec<Error>>>

Returns a script annotated with errors that could occur during evaluation.

pub fn to_component(&self) -> Result<Component<PossiblyBad>, Error>

Convert this into a Component, which can then be combined in authored scripts in Script.

pub fn serialize(script: &[Opcode]) -> Vec<u8>

Convert a sequence of Opcodes to the bytes that would be included in a transaction.

pub fn sig_op_count(&self, accurate: bool) -> u32

Pre-version-0.6, Bitcoin always counted CHECKMULTISIGs as 20 sigops. With pay-to-script-hash, that changed: CHECKMULTISIGs serialized in script_sigs are counted more accurately, assuming they are of the form … OP_N CHECKMULTISIG …

pub fn is_unspendable(&self) -> bool

Returns whether the script is guaranteed to fail at execution, regardless of the initial stack.

The only purpose of this function is to reproduce the behavior of the zcashd function IsUnspendable(), which is used for “asm” encoding and dust transaction filtering. https://github.com/zcash/zcash/blob/2352fbc1ed650ac4369006bea11f7f20ee046b84/src/script/script.h#L617-L620

Trait Implementations

impl Asm for Code

fn to_asm(&self, attempt_sighash_decode: bool) -> String

Return the “asm” representation of this type.

impl Clone for Code

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Code

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Code

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Evaluable for Code

fn byte_len(&self) -> usize

Get the byte length of this script sig.

fn to_bytes(&self) -> Vec<u8>

Convert a sequence of Opcodes to the bytes that would be included in a transaction.

fn is_pay_to_script_hash(&self) -> bool

Returns true iff this script is P2SH.

fn is_push_only(&self) -> bool

Called by IsStandardTx and P2SH/BIP62 VerifyScript (which makes it consensus-critical).

fn eval( &self, flags: Flags, checker: &dyn SignatureChecker, stack: Stack<Vec<u8>>, ) -> Result<Stack<Vec<u8>>, Error>

Evaluate this script component.