diff graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/control/RescueClassesNode.java @ 13514:0fbee3eb71f0

Ruby: import project.
author Chris Seaton <chris.seaton@oracle.com>
date Mon, 06 Jan 2014 17:12:09 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/control/RescueClassesNode.java	Mon Jan 06 17:12:09 2014 +0000
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+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
+package com.oracle.truffle.ruby.nodes.control;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.api.frame.*;
+import com.oracle.truffle.api.nodes.*;
+import com.oracle.truffle.ruby.nodes.*;
+import com.oracle.truffle.ruby.runtime.*;
+import com.oracle.truffle.ruby.runtime.core.*;
+import com.oracle.truffle.ruby.runtime.objects.*;
+
+/**
+ * Rescues any of a set of classes.
+ */
+@NodeInfo(shortName = "rescue-classes")
+public class RescueClassesNode extends RescueNode {
+
+    @Children final RubyNode[] handlingClassNodes;
+
+    public RescueClassesNode(RubyContext context, SourceSection sourceSection, RubyNode[] handlingClassNodes, RubyNode body) {
+        super(context, sourceSection, body);
+        this.handlingClassNodes = adoptChildren(handlingClassNodes);
+    }
+
+    @ExplodeLoop
+    @Override
+    public boolean canHandle(VirtualFrame frame, RubyBasicObject exception) {
+        final RubyClass exceptionRubyClass = exception.getRubyClass();
+
+        for (RubyNode handlingClassNode : handlingClassNodes) {
+            // TODO(CS): what if we don't get a class?
+
+            final RubyClass handlingClass = (RubyClass) handlingClassNode.execute(frame);
+
+            if (exceptionRubyClass.assignableTo(handlingClass)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}