SynchronousCallback

Promises that one callback is invoked only before its native call returns.

Sn is under heavy development. This reference includes the intended 1.0 design; features may be incomplete in the current compiler. Read the status →

Module std.abi

import std.abi;

Public declaration contracts and authored examples. A page can document several related symbols. Implementation bodies are excluded.

SynchronousCallback

pub attribute SynchronousCallback

Promises that one callback is invoked only before its native call returns.

ContextParameter names an optional sibling argument passed back to the callback. Parameter is used only when the annotation is on an import field.

SynchronousCallback.ContextParameter

pub ContextParameter: usize?;

Stores an optional zero-based callback-context parameter.

SynchronousCallback.Parameter

pub Parameter: usize?;

Stores the optional zero-based pointed callable parameter.

Documentation snapshot: October 24, 2026 About versions ↗