Enum JSWhyMagic

#[repr(u32)]
pub enum JSWhyMagic {
    JS_ELEMENTS_HOLE = 0,
    JS_NO_ITER_VALUE = 1,
    JS_GENERATOR_CLOSING = 2,
    JS_ARG_POISON = 3,
    JS_SERIALIZE_NO_NODE = 4,
    JS_IS_CONSTRUCTING = 5,
    JS_HASH_KEY_EMPTY = 6,
    JS_ION_ERROR = 7,
    JS_ION_BAILOUT = 8,
    JS_OPTIMIZED_OUT = 9,
    JS_UNINITIALIZED_LEXICAL = 10,
    JS_MISSING_ARGUMENTS = 11,
    JS_INTERRUPT_REGEXP = 12,
    JS_GENERIC_MAGIC = 13,
    JS_ERROR_WITHOUT_CAUSE = 14,
    JS_WHY_MAGIC_COUNT = 15,
}

Variants

JS_ELEMENTS_HOLE = 0

a hole in a native object’s elements

JS_NO_ITER_VALUE = 1

there is not a pending iterator value

JS_GENERATOR_CLOSING = 2

exception value thrown when closing a generator

JS_ARG_POISON = 3

used in debug builds to catch tracing errors

JS_SERIALIZE_NO_NODE = 4

an empty subnode in the AST serializer

JS_IS_CONSTRUCTING = 5

magic value passed to natives to indicate construction

JS_HASH_KEY_EMPTY = 6

see class js::HashableValue

JS_ION_ERROR = 7

error while running Ion code

JS_ION_BAILOUT = 8

missing recover instruction result

JS_OPTIMIZED_OUT = 9

optimized out slot

JS_UNINITIALIZED_LEXICAL = 10

uninitialized lexical bindings that produce ReferenceError on touch.

JS_MISSING_ARGUMENTS = 11

arguments object can’t be created because environment is dead.

JS_INTERRUPT_REGEXP = 12

exception value thrown when interrupting irregexp

JS_GENERIC_MAGIC = 13

for local use

JS_ERROR_WITHOUT_CAUSE = 14

When an error object is created without the error cause argument, we set the error’s cause slot to this magic value.

JS_WHY_MAGIC_COUNT = 15

When an error object is created without the error cause argument, we set the error’s cause slot to this magic value.

Trait Implementations

impl Clone for JSWhyMagic

fn clone(&self) -> JSWhyMagic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JSWhyMagic

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

Formats the value using the given formatter.

impl Hash for JSWhyMagic

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for JSWhyMagic

fn eq(&self, other: &JSWhyMagic) -> 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 Copy for JSWhyMagic

impl Eq for JSWhyMagic

impl StructuralPartialEq for JSWhyMagic