Jumbo patch:

* Imported beans and serialization
* Updated IA-64 port
* Miscellaneous bug fixes

From-SVN: r34028

1 files changed, 262 insertions, 0 deletions

diff --git a/libjava/gnu/java/lang/reflect/TypeSignature.java b/libjava/gnu/java/lang/reflect/TypeSignature.java
new file mode 100644
index 0000000..5a11e8c
--- /dev/null
+++ b/libjava/gnu/java/lang/reflect/TypeSignature.java
@@ -0,0 +1,262 @@
+/* TypeSignature.java -- Class used to compute type signatures
+   Copyright (C) 1998 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+ 
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+
+package gnu.java.lang.reflect;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Member;
+import java.lang.reflect.Method;
+
+/**
+   This class provides static methods that can be used to compute
+   type-signatures of <code>Class</code>s or <code>Member</code>s.
+   More specific methods are also provided for computing the
+   type-signature of <code>Constructor</code>s and
+   <code>Method</code>s.  Methods are also provided to go in the
+   reverse direction.
+*/
+public class TypeSignature
+{
+ 
+  /**
+     Returns a <code>String</code> representing the type-encoding of
+     CLAZZ.  Type-encodings are computed as follows:
+
+     <pre>
+     boolean -> "Z"
+     byte    -> "B"
+     char    -> "C"
+     double  -> "D"
+     float   -> "F"
+     int     -> "I"
+     long    -> "J"
+     short   -> "S"
+     void    -> "V"
+     arrays  -> "[" + type-encoding of component type
+     object  -> "L"
+                 + fully qualified class name with "."'s replaced by "/"'s
+                 + ";"</pre>
+  */
+  public static String getEncodingOfClass( Class clazz )
+  {
+    if( clazz.isPrimitive() )
+    {
+      if( clazz == Boolean.TYPE )
+	return "Z";
+      if( clazz == Byte.TYPE )
+	return "B";
+      if( clazz == Character.TYPE )
+	return "C";
+      if( clazz == Double.TYPE )
+	return "D";
+      if( clazz == Float.TYPE )
+	return "F";
+      if( clazz == Integer.TYPE )
+	return "I";
+      if( clazz == Long.TYPE )
+	return "J";
+      if( clazz == Short.TYPE )
+	return "S";
+      if( clazz == Void.TYPE )
+	return "V";
+      else
+	throw new RuntimeException( "Unknown primitive class " + clazz );
+    }
+    else if( clazz.isArray() )
+    {
+      return '[' + getEncodingOfClass( clazz.getComponentType() );
+    }
+    else
+    {
+      String classname = clazz.getName();
+      int name_len = classname.length();
+      char[] buf = new char[ name_len + 2 ];
+      buf[0] = 'L';
+      classname.getChars( 0, name_len, buf, 1 );
+      
+      int i;
+      for( i=1; i <= name_len; i++ )
+      {
+	if( buf[i] == '.' )
+	  buf[i] = '/';
+      }
+      
+      buf[i] = ';';
+      return new String( buf );
+    }
+  }
+
+  
+  /**
+     This function is the inverse of <code>getEncodingOfClass</code>.
+
+     @see getEncodingOfClass
+
+     @exception ClassNotFoundException If class encoded as type_code
+     cannot be located.
+  */
+  public static Class getClassForEncoding( String type_code )
+    throws ClassNotFoundException
+  {
+    if( type_code.equals( "B" ) )
+      return Byte.TYPE;
+    if( type_code.equals( "C" ) )
+      return Character.TYPE;
+    if( type_code.equals( "D" ) )
+      return Double.TYPE;
+    if( type_code.equals( "F" ) )
+      return Float.TYPE;
+    if( type_code.equals( "I" ) )
+      return Integer.TYPE;
+    if( type_code.equals( "J" ) )
+      return Long.TYPE;
+    if( type_code.equals( "S" ) )
+      return Short.TYPE;
+    if( type_code.equals( "Z" ) )
+      return Boolean.TYPE;
+    if( type_code.charAt( 0 ) == 'L' )
+    {
+      return Class.forName(
+	type_code.substring( 1, type_code.length() - 1 ).replace( '/', '.' ));
+    }
+    if( type_code.charAt( 0 ) == '[' )
+    {
+      int last_bracket = type_code.lastIndexOf( '[' );
+      String brackets = type_code.substring( 0, last_bracket + 1 );
+      String component = type_code.substring( last_bracket + 1 );
+      
+// ??? This is what the Classpath implementation did, but I don't
+// think that it's correct.  The JLS says that Class.forName takes the
+// classname of an array element in fully qualified form, whereas this
+// code is tring to strip off the punctuation.
+
+//        if( component.charAt( 0 ) == 'L' )
+//  	component =
+//  	  component.substring( 1, component.length() - 1 ).replace('/', '.');
+
+      if( component.charAt( 0 ) == 'L' )
+  	component = component.replace('/', '.');
+	
+      return Class.forName( brackets + component );
+    }
+    else
+      throw new ClassNotFoundException( "Type code cannot be parsed as a valid class name" );
+  }
+  
+
+  /**
+     Returns a <code>String</code> representing the type-encoding of
+     M.  The type-encoding of a method is:
+
+     "(" + type-encodings of parameter types + ")" 
+     + type-encoding of return type
+  */
+  public static String getEncodingOfMethod( Method m )
+  {
+    String returnEncoding = getEncodingOfClass( m.getReturnType() );
+    Class[] paramTypes = m.getParameterTypes();
+    String[] paramEncodings = new String[ paramTypes.length ];
+
+    String paramEncoding;
+    int size = 2; // make room for parens
+    for( int i=0; i < paramTypes.length; i++ )
+    {
+      paramEncoding = getEncodingOfClass( paramTypes[i] );
+      size += paramEncoding.length();
+      paramEncodings[i] = paramEncoding;
+    }
+    
+    size += returnEncoding.length();
+
+    StringBuffer buf = new StringBuffer( size );
+    buf.append( '(' );
+    
+    for( int i=0; i < paramTypes.length; i++ )
+    {
+      buf.append( paramEncodings[i] );
+    }
+    
+    buf.append( ')' );
+    buf.append( returnEncoding );
+    
+    return buf.toString();
+  }
+
+
+  /**
+     Returns a <code>String</code> representing the type-encoding of
+     C.  The type-encoding of a method is:
+
+     "(" + type-encodings of parameter types + ")V" 
+  */
+  public static String getEncodingOfConstructor( Constructor c )
+  {
+    Class[] paramTypes = c.getParameterTypes();
+    String[] paramEncodings = new String[ paramTypes.length ];
+
+    String paramEncoding;
+    int size = 3; // make room for parens and V for return type
+    for( int i=0; i < paramTypes.length; i++ )
+    {
+      paramEncoding = getEncodingOfClass( paramTypes[i] );
+      size += paramEncoding.length();
+      paramEncodings[i] = paramEncoding;
+    }
+    
+    StringBuffer buf = new StringBuffer( size );
+    buf.append( '(' );
+    
+    for( int i=0; i < paramTypes.length; i++ )
+    {
+      buf.append( paramEncodings[i] );
+    }
+    
+    buf.append( ")V" );
+    
+    return buf.toString();
+  }
+
+
+  /**
+     Returns a <code>String</code> representing the type-encoding of
+     MEM.  <code>Constructor</code>s are handled by
+     <code>getEncodingOfConstructor</code>.  <code>Method</code>s are
+     handled by <code>getEncodingOfMethod</code>.  <code>Field</code>s
+     are handled by returning the encoding of the type of the
+     <code>Field</code>.
+  */
+  public static String getEncodingOfMember( Member mem )
+  {
+    if( mem instanceof Constructor )
+      return getEncodingOfConstructor( (Constructor)mem );
+    if( mem instanceof Method )
+      return getEncodingOfMethod( (Method)mem );
+    else // Field
+      return getEncodingOfClass( ((Field)mem).getType() );
+  }
+}