Struct Panic

pub struct Panic {
    pub code: U256,
}

A Solidity panic.

These are thrown by assert(condition) and by internal Solidity checks, such as arithmetic overflow or array bounds checks.

The list of all known panic codes can be found in the PanicKind enum.

Fields

code: U256

The Solidity panic code.

Implementations

impl Panic

pub fn kind(&self) -> Option<PanicKind>

Returns the PanicKind if this panic code is a known Solidity panic, as described in the Solidity documentation.

Trait Implementations

impl AsRef<Uint<256, 4>> for Panic

fn as_ref(&self) -> &U256

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<Uint<256, 4>> for Panic

fn borrow(&self) -> &U256

Immutably borrows from an owned value.

impl Clone for Panic

fn clone(&self) -> Panic

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Panic

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

Formats the value using the given formatter.

impl Default for Panic

fn default() -> Panic

Returns the “default value” for a type.

impl Display for Panic

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

Formats the value using the given formatter.

impl Error for Panic

Available on crate feature std only.

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<T> From<Panic> for ContractError<T>

fn from(value: Panic) -> Self

Converts to this type from the input type.

impl From<Panic> for U256

fn from(value: Panic) -> Self

Converts to this type from the input type.

impl From<PanicKind> for Panic

fn from(value: PanicKind) -> Self

Converts to this type from the input type.

impl From<Uint<256, 4>> for Panic

fn from(value: U256) -> Self

Converts to this type from the input type.

impl From<u64> for Panic

fn from(value: u64) -> Self

Converts to this type from the input type.

impl Hash for Panic

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Panic

fn eq(&self, other: &Panic) -> 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 SolError for Panic

const SIGNATURE: &'static str = "Panic(uint256)"

The error’s ABI signature.

const SELECTOR: [u8; 4] = _

The error selector: keccak256(SIGNATURE)[0..4]

type Parameters<'a> = (Uint<256>,)

The underlying tuple type which represents the error’s members.

type Token<'a> = (WordToken,)

The corresponding TokenSeq type.

fn new(tuple: <Self::Parameters<'_> as SolType>::RustType) -> Self

Convert from the tuple type used for ABI encoding and decoding.

fn tokenize(&self) -> Self::Token<'_>

Convert to the token type used for EIP-712 encoding and decoding.

fn abi_encoded_size(&self) -> usize

The size of the error params when encoded in bytes, without the selector.

fn abi_decode_raw(data: &[u8], validate: bool) -> Result<Self>

ABI decode this call’s arguments from the given slice, without its selector.

fn abi_decode(data: &[u8], validate: bool) -> Result<Self>

ABI decode this error’s arguments from the given slice, with the selector.

fn abi_encode_raw(&self, out: &mut Vec<u8>)

ABI encode the error to the given buffer without its selector.

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

ABI encode the error to the given buffer with its selector.

impl<T> TryFrom<ContractError<T>> for Panic

type Error = ContractError<T>

The type returned in the event of a conversion error.

fn try_from(value: ContractError<T>) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Panic

impl Eq for Panic

impl StructuralPartialEq for Panic