Struct CustomE2eOpCallback 

#[repr(C)]
pub struct CustomE2eOpCallback {
    pub cb: CustomE2eOpCallbackType,
    pub ctx: OptionRefAny,
    pub op_schema: Json,
}

Application-provided handler for E2E ops the engine does not implement.

Fields

cb: CustomE2eOpCallbackType

ctx: OptionRefAny

op_schema: Json

Describes every op cb answers: name, summary, description, the JSON type each argument expects, usage examples, and example returns.

DATA, not a second callback — discovery is a field read, so it needs no invocation and no debug HTTP server. That is what lets a plugin enumerate host capabilities, a locally-spawned MCP server expose the app to an agent that would otherwise drive it by screenshot, or a script.json be handed straight to the binary.

The examples and types are not documentation garnish: they are what a macro picker renders and what an agent reads in place of a screenshot.

Json deliberately, not typed structs — the schema can then follow an OpenAPI-style operation shape and gain fields without an ABI break. Typed structs come later.

Trait Implementations

impl Clone for CustomE2eOpCallback

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CustomE2eOpCallback

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CustomE2eOpCallback

fn default() -> Self

Returns the “default value” for a type.

impl Display for CustomE2eOpCallback

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for CustomE2eOpCallback

impl From<extern "C" fn(RefAny, AzString, AzString) -> CustomE2eOpResult> for CustomE2eOpCallback

fn from(cb: CustomE2eOpCallbackType) -> Self

Installs a handler that advertises NOTHING.

A bare fn pointer carries no schema, so this cannot invent one. An app converting from a fn pointer gets a working handler whose ops are undiscoverable until it sets op_schema — visible in a plugin listing as an empty op list, which is the honest answer rather than a guess.

impl Hash for CustomE2eOpCallback

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for CustomE2eOpCallback

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for CustomE2eOpCallback

fn eq(&self, rhs: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for CustomE2eOpCallback

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.