| 1 | // |
| 2 | // (c) Copyright, Moebius Solutions, 2002 |
| 3 | // |
| 4 | // All Rights Reserved |
| 5 | // |
| 6 | // This material may be reproduced by or for the U. S. Government |
| 7 | // pursuant to the copyright license under the clause at |
| 8 | // DFARS 252.227-7013 (OCT 1988). |
| 9 | // |
| 10 | /* |
| 11 | * $Id: JniTypePrinter.java,v 1.1.1.5 2004/05/25 20:23:30 hastings Exp $ |
| 12 | */ |
| 13 | package com.moesol.generator.printer; |
| 14 | |
| 15 | import java.io.*; |
| 16 | |
| 17 | /** |
| 18 | * Print types out in a manner suitable for interfacing with JNI, |
| 19 | * including return types and parameters. |
| 20 | */ |
| 21 | public class JniTypePrinter extends TypePrinter { |
| 22 | protected JniTypePrinter() { } |
| 23 | private static JniTypePrinter instance = new JniTypePrinter(); |
| 24 | public static JniTypePrinter getInstance() { |
| 25 | return instance; |
| 26 | } |
| 27 | public void print(Class type, Writer out) throws IOException { |
| 28 | if (type.isPrimitive()) { |
| 29 | primitiveCxxType(out, type); |
| 30 | } else if (type.isArray()) { |
| 31 | arrayCxxType(out, type); |
| 32 | } else { |
| 33 | objectCxxType(out, type); |
| 34 | } |
| 35 | } |
| 36 | protected void primitiveCxxType(Writer out, Class type) throws IOException { |
| 37 | if (type == Boolean.TYPE) { |
| 38 | out.write("jboolean"); |
| 39 | } else if (type == Byte.TYPE) { |
| 40 | out.write("jbyte"); |
| 41 | } else if (type == Character.TYPE) { |
| 42 | out.write("jchar"); |
| 43 | } else if (type == Short.TYPE) { |
| 44 | out.write("jshort"); |
| 45 | } else if (type == Integer.TYPE) { |
| 46 | out.write("jint"); |
| 47 | } else if (type == Long.TYPE) { |
| 48 | out.write("jlong"); |
| 49 | } else if (type == Float.TYPE) { |
| 50 | out.write("jfloat"); |
| 51 | } else if (type == Double.TYPE) { |
| 52 | out.write("jdouble"); |
| 53 | } else if (type == Void.TYPE) { |
| 54 | out.write("void"); |
| 55 | } else { |
| 56 | throw new IllegalArgumentException("Not a known primitive type" |
| 57 | + type.getName()); |
| 58 | } |
| 59 | } |
| 60 | protected void arrayCxxType(Writer out, Class type) throws IOException { |
| 61 | if (type.getComponentType().isPrimitive()) { |
| 62 | primitiveCxxType(out, type.getComponentType()); |
| 63 | } else { |
| 64 | out.write("jobject"); |
| 65 | } |
| 66 | out.write("Array"); |
| 67 | } |
| 68 | protected void objectCxxType(Writer out, Class type) throws IOException { |
| 69 | if (String.class.isAssignableFrom(type)) { |
| 70 | out.write("jstring"); |
| 71 | } else if (Throwable.class.isAssignableFrom(type)) { |
| 72 | out.write("jthrowable"); |
| 73 | } else { |
| 74 | out.write("jobject"); |
| 75 | } |
| 76 | } |
| 77 | } |