Struct FnBinding 

pub struct FnBinding {
    pub name: String,
    pub doc: Option<String>,
    pub deprecated: Option<String>,
    pub since: Option<String>,
    pub cancellable: bool,
    pub is_async: bool,
    pub throws: bool,
    pub has_self: bool,
    pub params: Vec<ParamBinding>,
    pub ret: Option<TypeRef>,
    pub c_base: String,
    pub shape: CallShape,
}

A function, fully lowered.

Free functions and interface members share this shape. For an instance method, has_self is true and every AbiFn in shape carries an implicit leading const {c_tag}* self slot that does not appear in params; a wrapper passes its own native handle there.

Fields

name: String

The function name as written in the IDL.

doc: Option<String>

Optional doc comment carried from the IDL.

deprecated: Option<String>

Deprecation message when the function is marked deprecated, else None.

since: Option<String>

The version the function was introduced, when the IDL records one.

cancellable: bool

Whether an async function accepts a trailing cancel_token slot.

is_async: bool

Whether the function is async (lowered as a callback-completed launcher).

throws: bool

Whether the function reports typed domain errors. A throwing function surfaces as throws/raises in idiomatic wrappers using the module’s ErrorBinding; a non-throwing function has a plain signature, and a reported error (only ever a producer panic) surfaces as the target’s unrecoverable-error idiom instead.

has_self: bool

true for an instance method: the ABI signatures carry an implicit leading self slot not present in params.

params: Vec<ParamBinding>

IR input parameters with their lowered slots.

ret: Option<TypeRef>

The IR return type (None = void). For an iterator function this is the iter<T> type itself; the element T also lives in IteratorBinding. For an interface constructor this is the constructed interface type.

c_base: String

Base C symbol ({prefix}_{module_path}_{name} for a free function, {c_tag}_{name} for an interface member) before any _async/iterator suffixing.

shape: CallShape

The call shape (sync / async / iterator).

Implementations

impl FnBinding

pub fn error_strategy(&self) -> ErrorStrategy

The error strategy of this callable: ErrorStrategy::Throws when the IDL declares throws: true, otherwise ErrorStrategy::Trap.

Trait Implementations

impl Clone for FnBinding

fn clone(&self) -> FnBinding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FnBinding

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

Formats the value using the given formatter.

impl Eq for FnBinding

impl PartialEq for FnBinding

fn eq(&self, other: &FnBinding) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FnBinding