• shadowing-import symbols &optional package → t

• symbols - a designator for a list of symbols.
• package ---a package designator. The default is the current package.

shadowing-import is like import, but it does not signal an error even if the importation of a symbol would shadow some symbol already accessible in package.

shadowing-import inserts each of symbols into package as an internal symbol, regardless of whether another symbol of the same name is shadowed by this action. If a different symbol of the same name is already present in package, that symbol is first uninterned from package. The new symbol is added to package's shadowing-symbols list.

shadowing-import does name-conflict checking to the extent that it checks whether a distinct existing symbol with the same name is accessible; if so, it is shadowed by the new symbol, which implies that it must be uninterned if it was present in package.

(in-package "COMMON-LISP-USER") 

→

#<PACKAGE "COMMON-LISP-USER"> 



(defparameter *symbol* (intern "CONFLICT")) 

→

CONFLICT 



(intern "CONFLICT" (make-package 'temp)) 

→

TEMP::CONFLICT, NIL 



(package-shadowing-symbols 'temp) 

→

NIL 



(shadowing-import *symbol* 'temp) 

→

T 



(package-shadowing-symbols 'temp) 

→

(CONFLICT) 

shadowing-import changes the state of the package system in such a way that the consistency rules do not hold across the change.

package's shadowing-symbols list is modified.

Current state of the package system.

None.

• Function IMPORT
• Function UNINTERN
• Function PACKAGE-SHADOWING-SYMBOLS

None.

\issue{PACKAGE-FUNCTION-CONSISTENCY:MORE-PERMISSIVE}