Keywords

The following identifiers are reserved keywords in Zynx and cannot be used as variable, function, or type names.

Keyword	Description
as	Type cast or import alias
asm	Inline assembly block
assert	Runtime assertion
async	Declare or call an asynchronous function
await	Suspend until an async value is ready
break	Exit the innermost loop
case	Branch in a match arm
catch	Handle an error union inline
const	Declare a compile-time constant or immutable binding
continue	Skip to the next loop iteration
defer	Run a statement when the current scope exits
distinct	Create a nominally distinct type alias
else	Alternative branch of an if or match
enum	Declare an enumeration
error	Declare an error type
export	Make a declaration visible outside the current module
extern	Declare a symbol defined in a foreign (C) library
fn	Declare a function
for	Iterate over a collection
from	Selective import (from mod import symbol)
if	Conditional branch
import	Import a module
in	Specify the iterable in a for loop
interface	Declare a structural interface
let	Declare a local variable
match	Pattern-match on a value
raw	Raw pointer dereference or cast
return	Return a value from a function
struct	Declare a structure
test	Declare a test block
try	Propagate an error union; unwraps the value or returns the error
type	Declare a type alias
union	Declare a C-compatible union
while	Loop while a condition holds

Reserved identifiers

The following identifiers have special meaning in certain positions but are not reserved keywords — they can still be used as variable names, though doing so is discouraged:

Identifier	Context
true	Boolean literal
false	Boolean literal
null	Null pointer literal
require	Built-in dynamic module loader
self	Receiver in struct/interface methods