Documentation

reflect.errors.TypeMismatch$stream

A reflective typed read did not fit the requested type: `Field.value<T>()` or `AnyClass.get<T>()` asked for a `T` the underlying value is not.

Reference version

Signature

class reflect.errors.TypeMismatch$stream

A reflective typed read did not fit the requested type: Field.value<T>() or AnyClass.get<T>() asked for a T the underlying value is not.

Distinct from baml.errors.TypeMismatch, the host call-boundary error synthesized from EngineError::TypeMismatch — that one names the FFI contract; this one names a reflection read.

Source:<builtin>/reflect/ns_errors/errors.bamlbytes 0–0

Fields

message

string | null

Implementations

reflect.AnyClass for T

Instance methods

function

attributes

(self) -> reflect.Meta throws never

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 throws never

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

function

has_field

(self, name: string) -> bool throws never

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[] throws never

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

function

name

(self) -> string throws never

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

function

type

(self) -> reflect.Type throws never

This value's concrete runtime type.

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