Language

Compiler-owned syntax, declarations, lifecycle blocks, and contextual values.

Declarations

Symbol	Description
class	Declares a typed managed class binding.
conditional fields	Declares fields whose availability follows an ordinary enum value.
enum	Declares a nominal sum type.
fn	Declares a function or method.
image	Declares the managed types exposed by one runtime image.
namespace	Declares a managed metadata namespace inside an image schema.
settings	Declares live user settings.
state	Declares process attachment and persistent watched state.
struct	Declares an immutable nominal structure.
tickRate	Overrides the lifecycle-owned polling rates.

Lifecycle blocks

Symbol	Description
gameTime	Reports the current game time when known.
isLoading	Reports loading state when known.
onAttach	Initializes one state-provider attachment.
onDetach	Handles the end of a successfully initialized state-provider attachment.
onReset	Reacts after the timer resets.
onStart	Reacts after the timer starts.
onStateReady	Initializes one committed state snapshot.
reset	Decides whether to reset the timer.
selectProcess	Chooses among same-name process candidates.
setup	Initializes one loaded script instance.
split	Decides whether to advance the current split.
start	Decides whether to start the timer.
whileAttached	Runs on every initialized attached update.

Keywords

Symbol	Description
as	Explicitly converts a value.
async	Marks an explicitly typed function result as asynchronous.
await	Waits for an asynchronous value and yields its result.
break	Exits the nearest enclosing loop.
continue	Starts the next iteration of the nearest enclosing loop.
debug	Keeps a development-only statement in debug builds.
else	Provides a branch or unwrap fallback.
for	Iterates over an array, set, or integer range.
if	Branches as a statement or expression.
is	Tests a value against a pattern.
iterator	Names the type-erased synchronous iterator over `T`.
let	Declares an inferred variable.
loop	Repeats a block until it breaks.
match	Exhaustively matches a value.
retry	Retries synchronous fallible work until it succeeds.
return	Returns from the current function or action.
self	Refers to the current method receiver.
throw	Transfers an error to the nearest failure boundary.
while	Repeats a block while its condition is true.
yield	Suspends a generator after producing one item.

Syntax

Symbol	Description
!=	Compares two values for inequality.
///	Documents a source declaration, state field, setting, or heading.
==	Compares two values for equality.
?	Propagates a `T!` error.
[T; N]	Names a garbage-collected array type.
array indexing	Reads an array element.
array rest pattern	Matches a variable-length middle of an array.
at	Reads a persistent state field through a pointer path.
binding pattern	Destructures one value into local names where a declaration cannot fail.
callable type	Describes a first-class callable value.
choice setting	Declares an enum-backed setting choice.
closure	Creates a callable value with lexical captures.
End	Constructs an exhausted iterator step.
Err	Constructs a `T!` error.
file setting	Declares a file-selection setting.
from	Supplies one or more runtime metadata names for a managed declaration.
Item	Constructs a yielded iterator step.
maxLength	Bounds a managed string field read.
Ok	Explicitly constructs a successful result value.
provider	Declares one named runtime alternative inside a multi-provider state.
range	Describes an explicitly exclusive or inclusive integer interval.
settings family	Declares a finite family of boolean settings at compile time.
sig	Constructs a checked signature literal.
Some	Explicitly constructs a present optional value.
stable setting key	Assigns an explicit stable key in the host settings map.
static	Declares a managed field read through its class rather than an instance.
T!	Names a fallible result type.
T?	Names an optional type.
template string	Interpolates values into a String.
text input setting	Declares a free-form text-input setting.
utf16le	Decodes a bounded native UTF-16LE string state field.
utf8	Decodes a bounded native UTF-8 string state field.
v	Constructs a checked Windows file-version literal.
value block	Runs scoped statements and yields its final expression.

Contextual values

Symbol	Description
current	Accesses the current committed state snapshot.
old	Accesses the previous committed state snapshot.
oldSettings	Accesses the previous settings view.