Enum ScriptError 

pub enum ScriptError {
    StackUnderflow,
    UnexpectedEndOfScript,
    InvalidPushData,
    UnsupportedOpcode(u8),
    VerifyFailed,
    ScriptFailed,
    OpReturnEncountered,
    UnbalancedConditional,
    InvalidHex,
}

All error conditions that can arise during script parsing or execution.

Variants

StackUnderflow

Stack had fewer elements than the operation required.

UnexpectedEndOfScript

Script byte stream ended mid-instruction.

InvalidPushData

A push-data length field is malformed or exceeds remaining bytes.

UnsupportedOpcode(u8)

An opcode byte is valid in Bitcoin but not implemented by this engine.

VerifyFailed

OP_VERIFY, OP_EQUALVERIFY, or OP_CHECKSIGVERIFY consumed a false value.

ScriptFailed

Execution completed but the stack is empty or the top element is false.

OpReturnEncountered

OP_RETURN was encountered. The script is provably unspendable.

UnbalancedConditional

OP_IF / OP_NOTIF / OP_ELSE / OP_ENDIF are not properly balanced.

InvalidHex

A hex string could not be decoded (odd length or invalid character).

Trait Implementations

impl Clone for ScriptError

fn clone(&self) -> ScriptError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScriptError

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

Formats the value using the given formatter.

impl Display for ScriptError

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

Formats the value using the given formatter.

impl Error for ScriptError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for ScriptError

fn eq(&self, other: &ScriptError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ScriptError

impl StructuralPartialEq for ScriptError