Core

Basic

Global functions always available.

Function	Signature	Description
print	(value: any)	Print to the host console
assert	(condition: bool, msg: string)	Error if condition is false

print("Hello from Writ!")
assert(health > 0, "Player should be alive")

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Reflection

Module name: "reflect"

Function	Signature	Description
typeof	(value: any) -> string	Type name of a value
instanceof	(value: any, type: string) -> bool	Check type at runtime
hasField	(value: any, field: string) -> bool	Check if a field exists
getField	(value: any, field: string) -> any	Get a field by name
setField	(value: any, field: string, val: any)	Set a field by name
fields	(value: any) -> Array<string>	All field names
methods	(value: any) -> Array<string>	All method names
hasMethod	(value: any, method: string) -> bool	Check if a method exists
invoke	(value: any, method: string, ...args: any) -> any	Call a method by name

typeof(42)                      // "int"
instanceof(player, "Player")   // true
hasField(player, "health")     // true
getField(player, "health")     // 100.0
fields(player)                 // ["health", "name", ...]