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,
    },
    SubStackUnderflow {
        wanted: usize,
        on_stack: usize,
    },
    OutOfSubStack {
        wanted: usize,
        limit: usize,
    },
    InvalidSubEntry,
    BuiltIn(&'static str),
    MutableCallInStaticContext,
    InvalidCode,
    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

Fields

destination: usize

Position the code tried to jump to.

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

BadInstruction

Fields

instruction: u8

Unrecognized opcode

BadInstructions is returned when given instruction is not supported

StackUnderflow

Fields

instruction: &'static str

Invoked instruction

wanted: usize

How many stack elements was requested by instruction

on_stack: usize

How many elements were on stack

StackUnderflow when there is not enough stack elements to execute instruction

OutOfStack

Fields

instruction: &'static str

Invoked instruction

wanted: usize

How many stack elements instruction wanted to push

limit: usize

What was the stack limit

When execution would exceed defined Stack Limit

SubStackUnderflow

Fields

wanted: usize

How many stack elements was requested by instruction

on_stack: usize

How many elements were on stack

When there is not enough subroutine stack elements to return from

OutOfSubStack

Fields

wanted: usize

How many stack elements instruction wanted to pop

limit: usize

What was the stack limit

When execution would exceed defined subroutine Stack Limit

InvalidSubEntry

When the code walks into a subroutine, that is not allowed

BuiltIn(&'static str)

Built-in contract failed on given input

MutableCallInStaticContext

When execution tries to modify the state in static context

InvalidCode

Invalid code to deploy as a contract

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 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 Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl From<Box<TrieError<H256, DecoderError>, Global>> for Error

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

Performs the conversion.

impl From<TrieError<H256, DecoderError>> for Error

fn from(err: TrieError) -> Self

Performs the conversion.

impl PartialEq<Error> 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 StructuralPartialEq for Error