Enum VMError 

pub enum VMError {
    TypeError {
        expected: &'static str,
        got: &'static str,
        context: String,
    },
    DivisionByZero,
    AssertionFailed,
    StackUnderflow,
    InvalidOpcode(u8),
    NotCallable(String),
    UndefinedVariable(String),
    AttrNotFound(String),
    Internal(String),
    StackOverflow,
    Throw(String),
    UnknownBuiltin(String),
    InfiniteRecursion,
    ImportError(String),
}

Errors produced during bytecode VM execution.

Variants

TypeError

A type mismatch at runtime.

Fields

expected: &'static str

got: &'static str

context: String

DivisionByZero

Integer division by zero.

AssertionFailed

An assertion failed.

StackUnderflow

Stack underflow (internal compiler/VM bug).

InvalidOpcode(u8)

Invalid opcode byte encountered.

NotCallable(String)

Attempt to call a non-function value.

UndefinedVariable(String)

An undefined variable was referenced.

AttrNotFound(String)

An attribute was not found in an attrset.

Internal(String)

Internal VM error (should not happen in correct programs).

StackOverflow

Maximum call depth exceeded.

Throw(String)

A throw or abort was invoked.

UnknownBuiltin(String)

An unknown builtin was referenced.

InfiniteRecursion

A thunk entered infinite recursion (blackhole).

ImportError(String)

An I/O error during import.

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 Display for VMError

fn fmt(&self, __formatter: &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 PartialEq for VMError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for VMError