/***** 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) 2007 Ola Bini <ola.bini@gmail.com>
*
* 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.internal.runtime.methods;
import org.jruby.Ruby;
import org.jruby.RubyModule;
import org.jruby.exceptions.JumpException;
import org.jruby.parser.StaticScope;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.Frame;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.ast.executable.RubiniusMachine;
import org.jruby.ast.executable.RubiniusCMethod;
import org.jruby.internal.runtime.JumpTarget;
import org.jruby.runtime.EventHook;
import org.jruby.runtime.RubyEvent;
/**
* @author <a href="mailto:ola.bini@ki.se">Ola Bini</a>
*/
public class RubiniusMethod extends DynamicMethod implements JumpTarget {
private RubiniusCMethod cmethod;
private StaticScope staticScope;
private Arity arity;
public RubiniusMethod(RubyModule implementationClass, RubiniusCMethod cmethod, StaticScope staticScope, Visibility visibility) {
super(implementationClass, visibility, CallConfiguration.FRAME_AND_SCOPE);
this.staticScope = staticScope;
this.cmethod = cmethod;
this.arity = Arity.optional();
}
public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject[] args, Block block) {
assert args != null;
// System.err.println("--- entering " + cmethod.name);
Ruby runtime = context.getRuntime();
callConfig.pre(context, self, klazz, name, block, staticScope, this);
try {
if (runtime.hasEventHooks()) {
traceCall(context, runtime, name);
}
return RubiniusMachine.INSTANCE.exec(context, self, cmethod.code, cmethod.literals, args);
} catch (JumpException.ReturnJump rj) {
if (rj.getTarget() == this) return (IRubyObject) rj.getValue();
throw rj;
} finally {
if (runtime.hasEventHooks()) {
traceReturn(context, runtime, name);
}
callConfig.post(context);
// System.err.println("--- returning from " + cmethod.name);
}
}
private void traceReturn(ThreadContext context, Ruby runtime, String name) {
if (!runtime.hasEventHooks()) {
return;
}
Frame frame = context.getPreviousFrame();
runtime.callEventHooks(context, RubyEvent.RETURN, frame.getFile(), frame.getLine(), name, getImplementationClass());
}
private void traceCall(ThreadContext context, Ruby runtime, String name) {
if (!runtime.hasEventHooks()) {
return;
}
runtime.callEventHooks(context, RubyEvent.CALL, context.getFile(), context.getLine(), name, getImplementationClass());
}
public Arity getArity() {
return this.arity;
}
public DynamicMethod dup() {
return new RubiniusMethod(getImplementationClass(), cmethod, staticScope, getVisibility());
}
}// RubiniusMethod