ANSI Common Lisp 11 Packages 11.2 Dictionary of Packages
symbols &optional package
- Arguments and Values:
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
If a different symbol of the same name is already present
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">
(setq sym (intern "CONFLICT")) CONFLICT
(intern "CONFLICT" (make-package 'temp)) TEMP::CONFLICT, NIL
(package-shadowing-symbols 'temp) NIL
(shadowing-import sym 'temp) T
(package-shadowing-symbols 'temp) (CONFLICT)
- Side Effects:
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.
- Affected By:
Current state of the package system.
- See Also:
import, unintern, package-shadowing-symbols
- Allegro CL Implementation Details: