/*
***** 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) 2009 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
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package org.jruby.runtime.assigner;
import org.jruby.Ruby;
import org.jruby.RubyArray;
import org.jruby.ast.Node;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
/**
* Assigner with one fixed parameter (pre) and a rest argument.
*/
public class Pre1Rest0Post0Assigner extends Assigner {
private final Node parameter1;
public Pre1Rest0Post0Assigner(Node parameter1) {
this.parameter1 = parameter1;
}
@Override
public void assign(Ruby runtime, ThreadContext context, IRubyObject self, Block block) {
parameter1.assign(runtime, context, self, runtime.getNil(), block, false);
}
@Override
public void assign(Ruby runtime, ThreadContext context, IRubyObject self, IRubyObject value1,
Block block) {
parameter1.assign(runtime, context, self, value1, block, false);
}
@Override
public void assign(Ruby runtime, ThreadContext context, IRubyObject self, IRubyObject value1,
IRubyObject value2, Block block) {
parameter1.assign(runtime, context, self, value1, block, false);
}
@Override
public void assign(Ruby runtime, ThreadContext context, IRubyObject self, IRubyObject value1,
IRubyObject value2, IRubyObject value3, Block block) {
parameter1.assign(runtime, context, self, value1, block, false);
}
@Override
public void assign(Ruby runtime, ThreadContext context, IRubyObject self, IRubyObject values[],
Block block) {
int length = values == null ? 0 : values.length;
switch (length) {
case 0:
assign(runtime, context, self, block);
break;
default:
assign(runtime, context, self, values[0], block);
break;
}
}
@Override
public void assignArray(Ruby runtime, ThreadContext context, IRubyObject self, IRubyObject arg,
Block block) {
RubyArray values = (RubyArray) arg;
int length = values.getLength();
switch (length) {
case 0:
assign(runtime, context, self, block);
break;
default:
assign(runtime, context, self, values.eltInternal(0), block);
break;
}
}
}