Enum VMError 

pub enum VMError {
    Internal(InternalError),
    TxValidation(TxValidationError),
    ExceptionalHalt(ExceptionalHalt),
    RevertOpcode,
}

Variants

Internal(InternalError)

Errors that break execution, they shouldn’t ever happen. Contains subcategory DatabaseError.

TxValidation(TxValidationError)

Returned when a transaction doesn’t pass all validations before executing.

ExceptionalHalt(ExceptionalHalt)

Errors contemplated by the EVM, they revert and consume all gas of the current context.

RevertOpcode

Revert Opcode called. It behaves like ExceptionalHalt, except it doesn’t consume all gas left.

Implementations

impl VMError

pub fn should_propagate(&self) -> bool

These errors are unexpected and indicate critical issues. They should not cause a transaction to revert silently but instead fail loudly, propagating the error.

pub fn is_revert_opcode(&self) -> bool

Error triggered by revert opcode. This error doesn’t consume all gas left in context.

Trait Implementations

impl Clone for VMError

fn clone(&self) -> VMError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VMError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for VMError

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for VMError

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

Formats the value using the given formatter.

impl Eq for VMError

impl Error for VMError

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 From<DatabaseError> for VMError

fn from(err: DatabaseError) -> Self

Converts to this type from the input type.

impl From<ExceptionalHalt> for VMError

fn from(source: ExceptionalHalt) -> Self

Converts to this type from the input type.

impl From<InternalError> for VMError

fn from(source: InternalError) -> Self

Converts to this type from the input type.

impl From<PrecompileError> for VMError

fn from(err: PrecompileError) -> Self

Converts to this type from the input type.

impl From<TryFromSliceError> for VMError

Useful to use ? in try_into, specially when slicing with known bounds to fixed size arrays, which is a error that never really happens.

fn from(_: TryFromSliceError) -> Self

Converts to this type from the input type.

impl From<TxValidationError> for VMError

fn from(source: TxValidationError) -> Self

Converts to this type from the input type.

impl PartialEq for VMError

fn eq(&self, other: &VMError) -> 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 Serialize for VMError

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for VMError