Enum vm::Error

pub enum Error {
    OutOfGas,
    BadJumpDestination {
        destination: usize,
    },
    BadInstruction {
        instruction: u8,
    },
    StackUnderflow {
        instruction: &'static str,
        wanted: usize,
        on_stack: usize,
    },
    OutOfStack {
        instruction: &'static str,
        wanted: usize,
        limit: usize,
    },
    BuiltIn(&'static str),
    MutableCallInStaticContext,
    Internal(String),
    Wasm(String),
    OutOfBounds,
    Reverted,
}

VM errors.

Variants

OutOfGas

OutOfGas is returned when transaction execution runs out of gas. The state should be reverted to the state from before the transaction execution. But it does not mean that transaction was invalid. Balance still should be transfered and nonce should be increased.

BadJumpDestination

BadJumpDestination is returned when execution tried to move to position that wasn't marked with JUMPDEST instruction

Fields of BadJumpDestination

destination: usize

Position the code tried to jump to.

BadInstruction

BadInstructions is returned when given instruction is not supported

Fields of BadInstruction

instruction: u8

Unrecognized opcode

StackUnderflow

StackUnderflow when there is not enough stack elements to execute instruction

Fields of StackUnderflow

instruction: &'static str	Invoked instruction
wanted: usize	How many stack elements was requested by instruction
on_stack: usize	How many elements were on stack

OutOfStack

When execution would exceed defined Stack Limit

Fields of OutOfStack

instruction: &'static str	Invoked instruction
wanted: usize	How many stack elements instruction wanted to push
limit: usize	What was the stack limit

BuiltIn(&'static str)

Built-in contract failed on given input

MutableCallInStaticContext

When execution tries to modify the state in static context

Internal(String)

Likely to cause consensus issues.

Wasm(String)

Wasm runtime error

OutOfBounds

Out of bounds access in RETURNDATACOPY.

Reverted

Execution has been reverted with REVERT.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Error

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl From<Box<TrieError>> for Error

fn from(err: Box<TrieError>) -> Self

Performs the conversion.

impl From<TrieError> for Error

fn from(err: TrieError) -> Self

Performs the conversion.

impl Display for Error

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

Formats the value using the given formatter.