diff graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/control/IfNode.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/IfNode.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.api.utilities.*;
+import com.oracle.truffle.ruby.nodes.*;
+import com.oracle.truffle.ruby.nodes.cast.*;
+import com.oracle.truffle.ruby.runtime.*;
+
+/**
+ * Represents a Ruby {@code if} expression. Note that in this representation we always have an
+ * {@code else} part.
+ */
+@NodeInfo(shortName = "if")
+public class IfNode extends RubyNode {
+
+    @Child protected BooleanCastNode condition;
+    @Child protected RubyNode thenBody;
+    @Child protected RubyNode elseBody;
+
+    private final BranchProfile thenProfile = new BranchProfile();
+    private final BranchProfile elseProfile = new BranchProfile();
+
+    public IfNode(RubyContext context, SourceSection sourceSection, BooleanCastNode condition, RubyNode thenBody, RubyNode elseBody) {
+        super(context, sourceSection);
+        this.condition = adoptChild(condition);
+        this.thenBody = adoptChild(thenBody);
+        this.elseBody = adoptChild(elseBody);
+    }
+
+    @Override
+    public Object execute(VirtualFrame frame) {
+        if (condition.executeBoolean(frame)) {
+            thenProfile.enter();
+            return thenBody.execute(frame);
+        } else {
+            elseProfile.enter();
+            return elseBody.execute(frame);
+        }
+    }
+
+}