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Common Lisp implementation running on the JVM
/*
* PackageFunctions.java
*
* Copyright (C) 2003-2005 Peter Graves
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce an
* executable, regardless of the license terms of these independent
* modules, and to copy and distribute the resulting executable under
* terms of your choice, provided that you also meet, for each linked
* independent module, the terms and conditions of the license of that
* module. An independent module is a module which is not derived from
* or based on this library. If you modify this library, you may extend
* this exception to your version of the library, but you are not
* obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
package org.armedbear.lisp;
import static org.armedbear.lisp.Lisp.*;
public final class PackageFunctions
{
// ### packagep
// packagep object => generalized-boolean
private static final Primitive PACKAGEP = new Primitive("packagep", "object")
{
@Override
public LispObject execute(LispObject arg)
{
return arg instanceof Package ? T : NIL;
}
};
// ### package-name
// package-name package => nicknames
private static final Primitive PACKAGE_NAME =
new Primitive("package-name", "package")
{
@Override
public LispObject execute(LispObject arg)
{
return coerceToPackage(arg).NAME();
}
};
// ### package-nicknames
// package-nicknames package => nicknames
private static final Primitive PACKAGE_NICKNAMES =
new Primitive("package-nicknames", "package")
{
@Override
public LispObject execute(LispObject arg)
{
return coerceToPackage(arg).packageNicknames();
}
};
// ### package-use-list
// package-use-list package => use-list
private static final Primitive PACKAGE_USE_LIST =
new Primitive("package-use-list", "package")
{
@Override
public LispObject execute(LispObject arg)
{
return coerceToPackage(arg).getUseList();
}
};
// ### package-used-by-list
// package-used-by-list package => used-by-list
private static final Primitive PACKAGE_USED_BY_LIST =
new Primitive("package-used-by-list", "package")
{
@Override
public LispObject execute(LispObject arg)
{
return coerceToPackage(arg).getUsedByList();
}
};
// ### %import
// %import symbols &optional package => t
private static final Primitive _IMPORT =
new Primitive("%import", PACKAGE_SYS, false)
{
@Override
public LispObject execute(LispObject[] args)
{
if (args.length == 0 || args.length > 2)
return error(new WrongNumberOfArgumentsException(this, 1, 2));
LispObject symbols = args[0];
Package pkg =
args.length == 2 ? coerceToPackage(args[1]) : getCurrentPackage();
if (symbols.listp()) {
while (symbols != NIL) {
pkg.importSymbol(checkSymbol(symbols.car()));
symbols = symbols.cdr();
}
} else
pkg.importSymbol(checkSymbol(symbols));
return T;
}
};
// ### unexport
// unexport symbols &optional package => t
private static final Primitive UNEXPORT =
new Primitive("unexport", "symbols &optional package")
{
@Override
public LispObject execute(LispObject[] args)
{
if (args.length == 0 || args.length > 2)
return error(new WrongNumberOfArgumentsException(this, 1, 2));
LispObject symbols = args[0];
Package pkg =
args.length == 2 ? coerceToPackage(args[1]) : getCurrentPackage();
if (symbols.listp()) {
while (symbols != NIL) {
pkg.unexport(checkSymbol(symbols.car()));
symbols = symbols.cdr();
}
} else
pkg.unexport(checkSymbol(symbols));
return T;
}
};
// ### shadow
// shadow symbol-names &optional package => t
private static final Primitive SHADOW =
new Primitive("shadow", "symbol-names &optional package")
{
@Override
public LispObject execute(LispObject[] args)
{
if (args.length == 0 || args.length > 2)
return error(new WrongNumberOfArgumentsException(this, 1, 2));
LispObject symbols = args[0];
Package pkg =
args.length == 2 ? coerceToPackage(args[1]) : getCurrentPackage();
if (symbols.listp()) {
while (symbols != NIL) {
pkg.shadow(javaString(symbols.car()));
symbols = symbols.cdr();
}
} else
pkg.shadow(javaString(symbols));
return T;
}
};
// ### shadowing-import
// shadowing-import symbols &optional package => t
private static final Primitive SHADOWING_IMPORT =
new Primitive("shadowing-import", "symbols &optional package")
{
@Override
public LispObject execute(LispObject[] args)
{
if (args.length == 0 || args.length > 2)
return error(new WrongNumberOfArgumentsException(this, 1, 2));
LispObject symbols = args[0];
Package pkg =
args.length == 2 ? coerceToPackage(args[1]) : getCurrentPackage();
if (symbols.listp()) {
while (symbols != NIL) {
pkg.shadowingImport(checkSymbol(symbols.car()));
symbols = symbols.cdr();
}
} else
pkg.shadowingImport(checkSymbol(symbols));
return T;
}
};
// ### package-shadowing-symbols
// package-shadowing-symbols package => used-by-list
private static final Primitive PACKAGE_SHADOWING_SYMBOLS =
new Primitive("package-shadowing-symbols", "package")
{
@Override
public LispObject execute(LispObject arg)
{
return coerceToPackage(arg).getShadowingSymbols();
}
};
// ### %delete-package
private static final Primitive _DELETE_PACKAGE =
new Primitive("%delete-package", PACKAGE_SYS, false)
{
@Override
public LispObject execute(LispObject arg)
{
return coerceToPackage(arg).delete() ? T : NIL;
}
};
// ### unuse-package
// unuse-package packages-to-unuse &optional package => t
private static final Primitive USE_PACKAGE =
new Primitive("unuse-package", "packages-to-unuse &optional package")
{
@Override
public LispObject execute(LispObject[] args)
{
if (args.length < 1 || args.length > 2)
return error(new WrongNumberOfArgumentsException(this, 1, 2));
Package pkg;
if (args.length == 2)
pkg = coerceToPackage(args[1]);
else
pkg = getCurrentPackage();
if (args[0] instanceof Cons) {
LispObject list = args[0];
while (list != NIL) {
pkg.unusePackage(coerceToPackage(list.car()));
list = list.cdr();
}
} else
pkg.unusePackage(coerceToPackage(args[0]));
return T;
}
};
// ### rename-package
// rename-package package new-name &optional new-nicknames => package-object
private static final Primitive RENAME_PACKAGE =
new Primitive("rename-package", "package new-name &optional new-nicknames")
{
@Override
public LispObject execute(LispObject[] args)
{
if (args.length < 2 || args.length > 3)
return error(new WrongNumberOfArgumentsException(this, 2, 3));
Package pkg = coerceToPackage(args[0]);
String newName = javaString(args[1]);
LispObject nicknames = args.length == 3 ? checkList(args[2]) : NIL;
pkg.rename(newName, nicknames);
return pkg;
}
};
private static final Primitive LIST_ALL_PACKAGES =
new Primitive("list-all-packages", "")
{
@Override
public LispObject execute()
{
return Packages.listAllPackages();
}
};
// ### package-local-nicknames
// package-local-nicknames package => nickname-alist
private static final Primitive PACKAGE_LOCAL_NICKNAMES =
new Primitive("package-local-nicknames", PACKAGE_EXT, true, "package")
{
@Override
public LispObject execute(LispObject arg)
{
return coerceToPackage(arg).getLocalPackageNicknames();
}
};
// ### add-package-local-nickname
// add-package-local-nickname local-nickname package &optional package-designator => package
private static final Primitive ADD_PACKAGE_LOCAL_NICKNAME =
new Primitive("%add-package-local-nickname", PACKAGE_SYS, false,
"local-nickname package &optional package-designator")
{
@Override
public LispObject execute(LispObject nick, LispObject pack,
LispObject target)
{
return coerceToPackage(target).addLocalPackageNickname(nick.getStringValue(), coerceToPackage(pack));
}
@Override
public LispObject execute(LispObject nick, LispObject pack)
{
return this.execute(nick, pack, getCurrentPackage());
}
};
// ### remove-package-local-nickname
// remove-package-local-nickname old-nickname &optional package-designator => boolean
private static final Primitive REMOVE_PACKAGE_LOCAL_NICKNAME =
new Primitive("remove-package-local-nickname", PACKAGE_EXT, true,
"old-nickname &optional package-designator")
{
@Override
public LispObject execute(LispObject nick, LispObject target)
{
return coerceToPackage(target).removeLocalPackageNickname(nick.getStringValue());
}
@Override
public LispObject execute(LispObject nick)
{
return this.execute(nick, getCurrentPackage());
}
};
// ### package-locally-nicknamed-by-list
// package-locally-nicknamed-by-list package => package-list
private static final Primitive PACKAGE_LOCALLY_NICKNAMED_BY_LIST =
new Primitive("package-locally-nicknamed-by-list", PACKAGE_EXT, true,
"package")
{
@Override
public LispObject execute(LispObject pack)
{
return Packages.getPackagesNicknamingPackage(coerceToPackage(pack));
}
};
// ### %defpackage name nicknames size shadows shadowing-imports use
// imports interns exports doc-string => package
private static final Primitive _DEFPACKAGE =
new Primitive("%defpackage", PACKAGE_SYS, false)
{
@Override
public LispObject execute(LispObject[] args)
{
if (args.length != 11)
return error(new WrongNumberOfArgumentsException(this, 11));
final String packageName = args[0].getStringValue();
Package currentpkg = getCurrentPackage();
LispObject nicknames = checkList(args[1]);
// FIXME size is ignored
// LispObject size = args[2];
LispObject shadows = checkList(args[3]);
LispObject shadowingImports = checkList(args[4]);
LispObject use = checkList(args[5]);
LispObject imports = checkList(args[6]);
LispObject interns = checkList(args[7]);
LispObject exports = checkList(args[8]);
LispObject localNicknames = checkList(args[9]);
// FIXME docString is ignored
// LispObject docString = args[10];
Package pkg = currentpkg.findPackage(packageName);
if (pkg != null)
return pkg;
if (nicknames != NIL) {
LispObject list = nicknames;
while (list != NIL) {
String nick = javaString(list.car());
if (currentpkg.findPackage(nick) != null) {
return error(new PackageError("A package named " + nick +
" already exists."));
}
list = list.cdr();
}
}
pkg = Packages.createPackage(packageName);
while (nicknames != NIL) {
LispObject string = nicknames.car().STRING();
pkg.addNickname(string.getStringValue());
nicknames = nicknames.cdr();
}
while (shadows != NIL) {
String symbolName = shadows.car().getStringValue();
pkg.shadow(symbolName);
shadows = shadows.cdr();
}
while (shadowingImports != NIL) {
LispObject si = shadowingImports.car();
Package otherPkg = coerceToPackage(si.car());
LispObject symbolNames = si.cdr();
while (symbolNames != NIL) {
String symbolName = symbolNames.car().getStringValue();
Symbol sym = otherPkg.findAccessibleSymbol(symbolName);
if (sym != null)
pkg.shadowingImport(sym);
else
return error(new LispError(symbolName +
" not found in package " +
otherPkg.getName() + "."));
symbolNames = symbolNames.cdr();
}
shadowingImports = shadowingImports.cdr();
}
while (use != NIL) {
LispObject obj = use.car();
if (obj instanceof Package)
pkg.usePackage((Package)obj);
else {
LispObject string = obj.STRING();
Package p = currentpkg.findPackage(string.getStringValue());
if (p == null)
return error(new LispError(obj.princToString() +
" is not the name of a package."));
pkg.usePackage(p);
}
use = use.cdr();
}
while (imports != NIL) {
LispObject si = imports.car();
Package otherPkg = coerceToPackage(si.car());
LispObject symbolNames = si.cdr();
while (symbolNames != NIL) {
String symbolName = symbolNames.car().getStringValue();
Symbol sym = otherPkg.findAccessibleSymbol(symbolName);
if (sym != null)
pkg.importSymbol(sym);
else
return error(new LispError(symbolName +
" not found in package " +
otherPkg.getName() + "."));
symbolNames = symbolNames.cdr();
}
imports = imports.cdr();
}
while (interns != NIL) {
String symbolName = interns.car().getStringValue();
pkg.intern(symbolName);
interns = interns.cdr();
}
while (exports != NIL) {
String symbolName = exports.car().getStringValue();
pkg.export(pkg.intern(symbolName));
exports = exports.cdr();
}
while (localNicknames != NIL) {
LispObject nickDecl = localNicknames.car();
String name = nickDecl.car().getStringValue();
Package pack = coerceToPackage(nickDecl.cadr());
pkg.addLocalPackageNickname(name, pack);
localNicknames = localNicknames.cdr();
}
return pkg;
}
};
}