Module object 

Heap object layouts and their GC hooks.

Every object starts with a Header. Instances keep their fields inline as atomic words, so a racing reader can never see a torn value. Lists do the same with their elements and swap whole buffers on growth, so their reads never lock. Dicts and other containers keep Rust-side buffers; the ownership rules (and per-object locks for shared objects) guarantee those are never mutated while another thread reads them.

Structs

AtomicObj

BigIntObj

CellObj

ChannelInner

ChannelObj

ChannelState

ClosureObj

DictObj

InstanceObj

ListObj

A list: header, length, a pointer to a backing array, and room for a few elements inline.

MutexObj

NativeObj

StrObj

A string: immutable UTF-8 bytes with a cached hash and character count.

StringBuilderObj

ThreadInner

ThreadObj

TupleObj

Enums

ThreadOutcome

Outcome of a finished thread: its value or its panic message.

Traits

NativeData

Functions

as_atomic^⚠

Safety

as_bigint^⚠

Safety

as_cell^⚠

Safety

as_channel^⚠

Safety

as_closure^⚠

Safety

as_dict^⚠

Safety

as_instance^⚠

Safety

as_list^⚠

Safety

as_mutex^⚠

Safety

as_native^⚠

Safety

as_sb^⚠

Safety

as_str_obj^⚠

Safety

as_thread^⚠

Safety

as_tuple^⚠

Safety

atomic_of

The Atomic behind v, or a TypeError panic if v is not one.

channel_of

The Channel behind v, or a TypeError panic if v is not one.

dict_of

The Dict or Set behind v, or a TypeError panic if v is not one.

instance_of

The instance behind v if it is of class class_id exactly (builtin and prelude classes, which have no subclasses), or a TypeError panic naming want.

instance_with_field

The instance behind v if it is an instance with a field i (of any class), else None. Reading the field is then memory-safe; whether it is the expected class’s field is up to the caller.

kind_of

The object kind of a value (Immediate for non-pointers).

list_of

The List behind v, or a TypeError panic if v is not one.

mark_value

mutex_of

The Mutex behind v, or a TypeError panic if v is not one.

sb_of

The StringBuilder behind v, or a TypeError panic if v is not one.

str_obj_of

The String behind v, or a TypeError panic if v is not one.

str_of

Returns the string slice if v is a string.

thread_of

The Thread behind v, or a TypeError panic if v is not one.

tuple_of

The Tuple behind v, or a TypeError panic if v is not one.

type_error

A TypeError panic: expected {want}, got {the class of v}.

Type Aliases

Wake

Wakes a parked fiber (see the standard library’s fiber scheduler).