FLI type descriptor

Summary

The foreign type corresponding to the opaque "Block" object in C and derived languages.

Package

fli

Syntax

foreign-block-pointer

Arguments

None

Description

The foreign type foreign-block-pointer corresponds to the opaque "Block" object in C and derived languages that are introduced in CLANG and used by Apple.

A foreign block pointer should be regarded as opaque, and should not be manipulated or used except as described in Block objects in C (foreign blocks).

Notes

A foreign block that is allocated directly by the Lisp side (for example by allocate-foreign-block or with-foreign-block) prints as "lisp-foreign-block-pointer".

foreign-block-pointer is implemented in LispWorks for Macintosh only.

See also

allocate-foreign-block
define-foreign-block-callable-type
define-foreign-block-invoker
foreign-block-copy
foreign-block-release
free-foreign-block
released-foreign-block-pointer
with-foreign-block
with-local-foreign-block
Block objects in C (foreign blocks)