Documentation

reflect.Arg

One parameter of a function signature (BEP-062).

Reference version

Signature

class reflect.Arg

One parameter of a function signature (BEP-062).

Source:<builtin>/reflect/reflect.bamlbytes 53–505

Fields

name

string

The parameter's name. When the callable carries no name for a positional parameter (a host callable from a language without parameter-name introspection), this is the placeholder $argN for position N. $ cannot appear in a user identifier, so a placeholder can never collide with a declared parameter or named-argument key.

Implementations

reflect.AnyClass for T

Instance methods

function

attributes

(self) -> reflect.Meta

The class declaration's schema metadata, or empty metadata when the runtime type is not a class.

function

get

<T>(self, name: string) -> T | null throws reflect.errors.TypeMismatch

Read a field as T. A missing field returns null; use has_field to distinguish that case from a present field whose value is null.

function

get_field

(self, name: string) -> reflect.class.Field | null

Return a value-bound field handle, or null when no such field exists.

function

has_field

(self, name: string) -> bool

Whether this value's runtime class declares a field called name. false when the runtime type is not a class.

function

list_fields

(self) -> reflect.class.Field[]

Reflected fields bound to this value for Field.value<T>().

function

name

(self) -> string

The rendered name of this value's concrete runtime type.

function

type

(self) -> reflect.Type

This value's concrete runtime type.

Source:<builtin>/reflect/reflect.bamlbytes 6092–6122