Enum cfx_vm_types::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,
    NotEnoughBalanceForStorage {
        required: U256,
        got: U256,
    },
    ExceedStorageLimit,
    BuiltIn(&'static str),
    InternalContract(String),
    MutableCallInStaticContext,
    StateDbError(PartialEqWrapper<Error>),
    Wasm(String),
    OutOfBounds,
    Reverted,
    InvalidAddress(Address),
    ConflictAddress(Address),
}

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

SubStackUnderflow when there is not enough stack elements to execute a subroutine return

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

NotEnoughBalanceForStorage

Fields

required: U256

got: U256

When balance is not enough for collateral_for_storage. The state should be reverted to the state from before the transaction execution.

ExceedStorageLimit

ExceedStorageLimit is returned when the collateral_for_storage exceed the storage_limit.

BuiltIn(&'static str)

Built-in contract failed on given input

InternalContract(String)

Internal contract failed

MutableCallInStaticContext

When execution tries to modify the state in static context

StateDbError(PartialEqWrapper<Error>)

Error from storage.

Wasm(String)

Wasm runtime error

OutOfBounds

Out of bounds access in RETURNDATACOPY.

Reverted

Execution has been reverted with REVERT.

InvalidAddress(Address)

Invalid address

ConflictAddress(Address)

Create a contract on an address with existing contract

Trait Implementations

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<ABIDecodeError> for Error

fn from(err: ABIDecodeError) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(err: DbError) -> Self

Converts to this type from the input type.

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: &Rhs) -> bool

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

impl StructuralPartialEq for Error