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Diffstat (limited to 'src/java/com/sun/gluegen/CodeGenUtils.java')
-rw-r--r-- | src/java/com/sun/gluegen/CodeGenUtils.java | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/java/com/sun/gluegen/CodeGenUtils.java b/src/java/com/sun/gluegen/CodeGenUtils.java new file mode 100644 index 0000000..ab81bec --- /dev/null +++ b/src/java/com/sun/gluegen/CodeGenUtils.java @@ -0,0 +1,150 @@ +/* + * 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.io.*; +import java.util.*; + +public class CodeGenUtils +{ + /** + * Given a java package name (e.g., "java.lang"), return the package as a + * directory path (i.e., "java/lang"). + */ + public static String packageAsPath(String packageName) { + String path = packageName.replace('.', File.separatorChar); + //System.out.println("Converted package [" + packageName + "] to path [" + path +"]"); + return path; + } + + /** + * @param generator the object that is emitting the autogenerated code. If + * null, the generator will not be mentioned in the warning message. + */ + public static void emitAutogeneratedWarning(PrintWriter w, Object generator) { + w.print("/* !---- DO NOT EDIT: This file autogenerated "); + if (generator != null) + { + w.print("by "); + w.print(packageAsPath(generator.getClass().getName())); + w.print(".java "); + } + w.print("on "); + w.print((new Date()).toString()); + w.println(" ----! */"); + w.println(); + } + + /** + * Emit the opening headers for one java class/interface file. + */ + public static void emitJavaHeaders( + PrintWriter w, + String packageName, + String className, + String gluegenRuntimePackage, + boolean isClassNotInterface, + String[] imports, + String[] accessModifiers, + String[] interfaces, + String classExtended, + EmissionCallback classDocComment) throws IOException + { + w.println("package " + packageName + ";"); + w.println(); + + for (int i = 0; imports != null && i < imports.length; ++i) { + w.print("import "); + w.print(imports[i]); + w.println(';'); + } + w.println("import " + gluegenRuntimePackage + ".*;"); + + w.println(); + + if (classDocComment != null) + { + classDocComment.emit(w); + } + + for (int i = 0; accessModifiers != null && i < accessModifiers.length; ++i) { + w.print(accessModifiers[i]); + w.print(' '); + } + + if (isClassNotInterface) { + w.print("class "); + w.print(className); + w.print(' '); + if (classExtended != null) { + w.print("extends "); + w.print(classExtended); + } + } + else { + if (classExtended != null) { + throw new IllegalArgumentException( + "Autogenerated interface class " + className + + " cannot extend class " + classExtended); + } + w.print("interface "); + w.print(className); + w.print(' '); + } + + for (int i = 0; interfaces != null && i < interfaces.length; ++i) { + if (i == 0) { w.print(isClassNotInterface ? "implements " : "extends "); } + w.print(interfaces[i]); + if (i < interfaces.length-1) { w.print(", "); } + } + + w.println(); + w.println('{'); + } + + //----------------------------------------- + + /** A class that emits source code of some time when activated. */ + public interface EmissionCallback + { + /** Emit appropriate source code through the given writer. */ + public void emit(PrintWriter output); + } +} |