Standard Library

class RuntimeException

The error the standard library throws when an operation fails at run time.

since 0.1.0-alpha.1linuxwindowswasm

bases

Exception, IRuntimeException

Overview

Examples are a value out of range, converting text that is not a number, or a connection that cannot be opened. message describes the failure. Throw it for the same kind of failure in your own code.

Examples

try {
    throw RuntimeException("boom");
} catch (LogicException e) {
    console.writeln("logic");
} catch (RuntimeException e) {
    console.writeln("runtime: ${e.message}");
}

runtime: boom

Constructors

new

new(string msg)

Creates a runtime error with a message.

Parameters

msg

The text describing what went wrong.

Examples

RuntimeException e = RuntimeException("bad input");
console.writeln(e.message);

bad input

See also

• IRuntimeException — The interface of errors that arise while a program runs, such as a bad argument or a failed operation.
• LogicException — An error that signals a mistake in the program's own logic, such as using an object in the wrong state.