1 files changed, 264 insertions, 0 deletions
diff --git a/libjava/java/lang/reflect/Field.java b/libjava/java/lang/reflect/Field.java
new file mode 100644
index 00000000000..7c7e690926a
--- /dev/null
+++ b/libjava/java/lang/reflect/Field.java
@@ -0,0 +1,264 @@
+/* Copyright (C) 1998, 1999  Cygnus Solutions
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+package java.lang.reflect;
+
+/**
+ * @author Per Bothner <bothner@cygnus.com>
+ * @date September 1998;  February 1999.
+ */
+/* Status:  Mostly implemented.
+ * However, access checks are not implemented.  See natField.cc for
+ * _Jv_CheckFieldAccessibility as well as the missing getCaller.
+ * Note that the idea is to have to compiler convert calls to
+ * setXXX(...) and getXXX(...) to setXXX(CALLER, ...) and getXXX(CALLER, ...),
+ * where CALLER is reference to the class that contains the calls to
+ * setXXX or getXXX.  This is easy for the compiler, and replaces
+ * expensive stack and table searching with a constant.
+ */
+
+public final class Field extends AccessibleObject implements Member
+{
+  private Class declaringClass;
+
+  // This is filled in by getName.
+  private String name;
+
+  // Offset in bytes from the start of declaringClass's fields array.
+  private int offset;
+
+  public boolean equals (Object fld)
+    {
+      if (! (fld instanceof Field))
+	return false;
+      Field f = (Field) fld;
+      return declaringClass == f.declaringClass && offset == f.offset;
+    }
+
+  public Class getDeclaringClass ()
+  {
+    return declaringClass;
+  }
+
+  public native String getName ();
+
+  public native Class getType ();
+
+  public native int getModifiers ();
+
+  public int hashCode()
+  {
+    return (declaringClass.hashCode() ^ offset);
+  }
+
+  // The idea is that the compiler will magically translate
+  // fld.getShort(obj) to fld.getShort(THISCLASS, obj).
+  // This makes checking assessiblity more efficient,
+  // since we don't have to do any stack-walking.
+
+  public boolean getBoolean (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getBoolean(null, obj);
+  }
+  public char getChar (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getChar(null, obj);
+  }
+
+  public byte getByte (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getByte(null, obj);
+  }
+
+  public short getShort (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getShort(null, obj);
+  }
+
+  public int getInt (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getInt(null, obj);
+  }
+
+  public long getLong (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getLong(null, obj);
+  }
+
+  public float getFloat (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getFloat(null, obj);
+  }
+
+  public double getDouble (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return getDouble(null, obj);
+  }
+
+  public Object get (Object obj)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    return get(null, obj);
+  }
+
+  private native boolean getBoolean (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native char getChar (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native byte getByte (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native short getShort (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native int getInt (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native long getLong (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native float getFloat (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native double getDouble (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native Object get (Class caller, Object obj)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public void setByte (Object obj, byte b)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setByte(null, obj, b);
+  }
+
+  public void setShort (Object obj,  short s)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setShort(null, obj, s);
+  }
+
+  public void setInt (Object obj, int i)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setInt(null, obj, i);
+  }
+
+  public void setLong (Object obj, long l)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setLong(null, obj, l);
+  }
+
+  public void setFloat (Object obj, float f)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setFloat(null, obj, f);
+  }
+
+  public void setDouble (Object obj, double d)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setDouble(null, obj, d);
+  }
+
+  public void setChar (Object obj, char c)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setChar(null, obj, c);
+  }
+
+  public void setBoolean (Object obj, boolean b)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    setBoolean(null, obj, b);
+  }
+
+  public native void setByte (Class caller, Object obj, byte b)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native void setShort (Class caller, Object obj, short s)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native void setInt (Class caller, Object obj, int i)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native void setLong (Class caller, Object obj, long l)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native void setFloat (Class caller, Object obj, float f)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native void setDouble (Class caller, Object obj, double d)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native void setChar (Class caller, Object obj, char c)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public native void setBoolean (Class caller, Object obj, boolean b)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  private native void set (Class caller, Object obj, Object val, Class type)
+    throws IllegalArgumentException, IllegalAccessException;
+
+  public void set (Object object, Object value)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    set(null, object, value);
+  }
+
+  public void set (Class caller, Object object, Object value)
+    throws IllegalArgumentException, IllegalAccessException
+  {
+    Class type = getType();
+    if (! type.isPrimitive())
+      set(caller, object, value, type);
+    else if (value instanceof Byte)
+      setByte(caller, object, ((Byte) value).byteValue());
+    else if (value instanceof Short)
+      setShort (caller, object, ((Short) value).shortValue());
+    else if (value instanceof Integer)
+      setInt(caller, object, ((Integer) value).intValue());
+    else if (value instanceof Long)
+      setLong(caller, object, ((Long) value).longValue());
+    else if (value instanceof Float)
+      setFloat(caller, object, ((Float) value).floatValue());
+    else if (value instanceof Double)
+      setDouble(caller, object, ((Double) value).doubleValue());
+    else if (value instanceof Character)
+      setChar(caller, object, ((Character) value).charValue());
+    else if (value instanceof Boolean)
+      setBoolean(caller, object, ((Boolean) value).booleanValue());
+    else
+      throw new IllegalArgumentException();
+  }
+
+  public String toString ()
+  {
+    StringBuffer sbuf = new StringBuffer ();
+    int mods = getModifiers();
+    if (mods != 0)
+      Modifier.toString(mods, sbuf);
+    sbuf.append(getType());
+    sbuf.append(' ');
+    sbuf.append(getDeclaringClass());
+    sbuf.append('.');
+    sbuf.append(getName());
+    return sbuf.toString();
+  }
+}