Macro

Summary

Informs the dspec system that a definer expands into a another definer.

Package

dspec

Signature

define-dspec-alias name lambda-list &body body

Arguments

name

A symbol naming a definer.

lambda-list

A list representing the cdr of a name dspec.

body

Forms evaluated to yield a dspec.

Description

The macro define-dspec-alias works rather like deftype. Dspecs whose car is name should have a structure like lambda-list . They will be canonicalized into the dspec returned by body .

define-dspec-alias is useful when you add a new way of making existing definitions with a new defining form that expands into a system-provided defining form. The dspec system should consider the new and system-provided definers as variant forms of the same dspec class. define-dspec-alias is used to convert one of them to the other during canonicalization by canonicalize-dspec.

Example

defparameter is pre-defined as an alias for defvar .

See also

canonicalize-dspec