Enum RuntimeError 

pub enum RuntimeError {
    UndefinedVariable(String),
    TypeError(String),
    TypeErrorDetailed {
        expected: String,
        got: String,
    },
    InvalidOperation(String),
    DivisionByZero,
    NotCallable(String),
    WrongArity {
        expected: usize,
        got: usize,
    },
    Return(Value),
    Yield(Value),
    Break,
    Continue,
    Throw(Value),
    ImportError(Box<ImportError>),
    WithCallStack {
        error: Box<RuntimeError>,
        call_stack: Vec<CallFrame>,
    },
    ExecutionLimit(ExecutionLimitError),
    CustomError(String),
    DebugPause,
}

Runtime errors

Variants

UndefinedVariable(String)

Variable not found

TypeError(String)

Type mismatch - simple message

TypeErrorDetailed

Type mismatch - detailed version

Fields

expected: String

got: String

InvalidOperation(String)

Invalid operation

DivisionByZero

Division by zero

NotCallable(String)

Function not found or not callable

WrongArity

Wrong number of arguments

Fields

expected: usize

got: usize

Return(Value)

Return statement (used for control flow)

Yield(Value)

Yield statement (used for generators)

Break

Break statement (used for loop control)

Continue

Continue statement (used for loop control)

Throw(Value)

Throw statement (user-thrown error)

ImportError(Box<ImportError>)

Structured Import/Export module errors (with import chain)

WithCallStack

Attach a captured call stack to an error.

Fields

error: Box<RuntimeError>

call_stack: Vec<CallFrame>

ExecutionLimit(ExecutionLimitError)

Execution limit exceeded

CustomError(String)

Custom error message (用于IO操作等)

DebugPause

Debugger pause (not a real error, used for control flow)

Implementations

impl RuntimeError

pub fn to_error_report(&self) -> ErrorReport

Trait Implementations

impl Clone for RuntimeError

fn clone(&self) -> RuntimeError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RuntimeError

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

Formats the value using the given formatter.

impl Display for RuntimeError

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

Formats the value using the given formatter.

impl Error for RuntimeError

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 RuntimeError

fn eq(&self, other: &RuntimeError) -> 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 StructuralPartialEq for RuntimeError