/*
***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
* Copyright (C) 2002-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>
* Copyright (C) 2003-2004 Thomas E Enebo <enebo@acm.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the CPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.evaluator;
import org.jruby.Ruby;
import org.jruby.RubyArray;
import org.jruby.ast.MultipleAsgnNode;
import org.jruby.ast.Node;
import org.jruby.ast.NodeType;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
/**
*
* @author jpetersen
*/
public class AssignmentVisitor {
@Deprecated
public static IRubyObject assign(Ruby runtime, ThreadContext context, IRubyObject self, Node node, IRubyObject value, Block block, boolean checkArity) {
return node.assign(runtime, context, self, value, block, checkArity);
}
public static IRubyObject multiAssign(Ruby runtime, ThreadContext context, IRubyObject self, MultipleAsgnNode node, RubyArray value, boolean checkArity) {
// Assign the values.
int valueLen = value.getLength();
int varLen = node.getHeadNode() == null ? 0 : node.getHeadNode().size();
int j = 0;
for (; j < valueLen && j < varLen; j++) {
node.getHeadNode().get(j).assign(runtime, context, self, value.eltInternal(j), Block.NULL_BLOCK, checkArity);
}
if (checkArity && j < varLen) {
throw runtime.newArgumentError("Wrong # of arguments (" + valueLen + " for " + varLen + ")");
}
Node argsNode = node.getArgsNode();
if (argsNode != null) {
if (argsNode.nodeId == NodeType.STARNODE) {
// no check for '*'
} else if (varLen < valueLen) {
argsNode.assign(runtime, context, self, value.subseqLight(varLen, valueLen), Block.NULL_BLOCK, checkArity);
} else {
argsNode.assign(runtime, context, self, RubyArray.newArrayLight(runtime, 0), Block.NULL_BLOCK, checkArity);
}
} else if (checkArity && valueLen < varLen) {
throw runtime.newArgumentError("Wrong # of arguments (" + valueLen + " for " + varLen + ")");
}
while (j < varLen) {
node.getHeadNode().get(j++).assign(runtime, context, self, runtime.getNil(), Block.NULL_BLOCK, checkArity);
}
return value;
}
}