Macro

Summary

Defines a foreign structure for use with Objective-C.

Package

objc

Signature

define-objc-struct (name option*) slot*

option ::= (:foreign-name foreign-name)

| (:typedef-name typedef-name)

slot ::= (slot-name slot-type)

Arguments

name

A symbol naming the foreign structure type.

foreign-name

A string giving the foreign structure name.

typedef-name

A symbol naming a foreign structure type alias.

slot-name

A symbol naming the foreign slot.

slot-type

An FLI type descriptor for the foreign slot.

Description

The macro define-objc-struct defines a foreign structure type called (:struct name) with the given slots. In addition, the type becomes an Objective-C type that can be used with invoke, invoke-into and define-objc-method or define-objc-class-method.

The foreign-name must be specified to allow the Objective-C runtime system to identify the type.

If typedef-name is specified,it allows that symbol to be used in place of (:struct name) when using the type in a define-objc-method or define-objc-class-method form.

Example

 

See also

invoke-into
define-objc-method
define-objc-class-method