1 files changed, 72 insertions, 0 deletions
diff --git a/src/java/com/sun/gluegen/ReferencedStructs.java b/src/java/com/sun/gluegen/ReferencedStructs.java
new file mode 100644
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+++ b/src/java/com/sun/gluegen/ReferencedStructs.java
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+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.gluegen;
+
+import java.util.*;
+import com.sun.gluegen.cgram.types.*;
+
+public class ReferencedStructs implements TypeVisitor {
+  private Set results = new HashSet();
+
+  public void clear() {
+    results.clear();
+  }
+  
+  public Iterator results() {
+    return results.iterator();
+  }
+
+  public void visitType(Type t) {
+    if (t.isPointer()) {
+      PointerType p = t.asPointer();
+      if (p.hasTypedefedName()) {
+        CompoundType c = p.getTargetType().asCompound();
+        if (c != null && c.getName() == null) {
+          // This otherwise-unnamed CompoundType is referred to by a
+          // PointerType that has a typedef name. Assume that it is
+          // referred to in the glue code and emit it.
+          results.add(p);
+        }
+      }
+    } else if (t.isCompound()) {
+      results.add(t);
+    }
+  }
+}