Initial revision

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@3 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 199 insertions, 0 deletions

diff --git a/src/net/java/games/gluegen/FunctionEmitter.java b/src/net/java/games/gluegen/FunctionEmitter.java
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+++ b/src/net/java/games/gluegen/FunctionEmitter.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
+ * MIDROSYSTEMS, 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 net.java.games.gluegen;
+
+import java.util.*;
+import java.io.*;
+
+public abstract class FunctionEmitter
+{
+  public static final EmissionModifier STATIC = new EmissionModifier("static");
+
+  private HashSet modifiers = new HashSet(4);
+  private CommentEmitter commentEmitter = null;
+  private PrintWriter defaultOutput;
+
+  /**
+   * Constructs the FunctionEmitter with a CommentEmitter that emits nothing.
+   */
+  public FunctionEmitter(PrintWriter defaultOutput)
+  {
+    assert(defaultOutput != null);
+    this.defaultOutput = defaultOutput;
+  }
+  
+  public PrintWriter getDefaultOutput() { return defaultOutput; }
+  
+  public void addModifiers(Iterator/*<EmissionModifier>*/ mi)
+  {
+    while (mi.hasNext())
+    {
+      modifiers.add((EmissionModifier) mi.next());
+    }
+  }
+  public void addModifier(EmissionModifier m) { modifiers.add(m); }
+
+  public boolean removeModifier(EmissionModifier m) { return modifiers.remove(m); }
+
+  public void clearModifiers() { modifiers.clear(); }
+
+  public boolean hasModifier(EmissionModifier m) { return modifiers.contains(m); }
+
+  public Iterator getModifiers() { return modifiers.iterator(); }
+
+  public abstract String getName();
+
+  /**
+   * Emit the function to the specified output (instead of the default
+   * output).
+   */
+  public void emit(PrintWriter output)
+  {
+    emitDocComment(output);
+    //output.println("  // Emitter: " + getClass().getName());
+    emitSignature(output);
+    emitBody(output);
+  }
+
+  /**
+   * Emit the function to the default output (the output that was passed to
+   * the constructor)
+   */
+  public final void emit()
+  {
+    emit(getDefaultOutput());
+  }
+
+  /** Returns, as a String, whatever {@link emit()} would output. */
+  public String toString()
+  {
+    StringWriter sw = new StringWriter(500);
+    PrintWriter w = new PrintWriter(sw);
+    emit(w);
+    return sw.toString();
+  }
+
+  /**
+   * Set the object that will emit the comment for this function. If the
+   * parameter is null, no comment will be emitted.
+   */
+  public void setCommentEmitter(CommentEmitter cEmitter)
+  {
+    commentEmitter = cEmitter;
+  }
+
+  /**
+   * Get the comment emitter for this FunctionEmitter. The return value may be
+   * null, in which case no comment emitter has been set.
+   */
+  public CommentEmitter getCommentEmitter() { return commentEmitter; }
+  
+  protected void emitDocComment(PrintWriter writer)
+  {
+    if (commentEmitter != null)
+    {
+      writer.print(getBaseIndentString()); //indent
+
+      writer.print(getCommentStartString());
+
+      commentEmitter.emit(this, writer);
+
+      writer.print(getBaseIndentString()); //indent
+      
+      writer.println(getCommentEndString());
+    }
+  }
+  
+  protected void emitSignature(PrintWriter writer)
+  {
+    writer.print(getBaseIndentString()); // indent method
+
+    int numEmitted = emitModifiers(writer);
+    if (numEmitted > 0)
+    {
+      writer.print(" ");
+    }
+
+    emitReturnType(writer);
+    writer.print(" ");
+
+    emitName(writer);
+    writer.print("(");
+
+    emitArguments(writer);
+    writer.print(")");
+  }
+
+  protected int emitModifiers(PrintWriter writer)
+  {
+    PrintWriter w = getDefaultOutput();
+    int numEmitted = 0;
+    for (Iterator it = getModifiers(); it.hasNext(); )
+    {
+      writer.print(it.next());
+      ++numEmitted;
+      if (it.hasNext())
+      {
+        writer.print(" ");
+      }
+    }
+    return numEmitted;
+  }
+
+  protected String getBaseIndentString() { return ""; }
+  
+  protected String getCommentStartString() { return "/* "; }
+  protected String getCommentEndString() { return " */"; }
+  
+  protected abstract void emitReturnType(PrintWriter writer);
+  protected abstract void emitName(PrintWriter writer); 
+  /** Returns the number of arguments emitted. */
+  protected abstract int emitArguments(PrintWriter writer);  
+  protected abstract void emitBody(PrintWriter writer);
+  
+  public static class EmissionModifier
+  {    
+    public final String toString() { return emittedForm; }
+    
+    private String emittedForm;
+    protected EmissionModifier(String emittedForm) { this.emittedForm = emittedForm; } 
+  }
+}
+