Structs
A JsError represents an exception coming from V8, with stack frames and
line numbers. The deno_cli crate defines another JsError type, which wraps
the one defined here, that adds source map support and colorful formatting.
Functions
Creates a new error with a caller-specified error class name and message.
If this error was crated with custom_error(), return the specified error
class name. In all other cases this function returns None.
Type Definitions
A generic wrapper that can encapsulate any concrete error type.