diff options
Diffstat (limited to 'vm/reference/java/lang/reflect/VMField.java')
| -rw-r--r-- | vm/reference/java/lang/reflect/VMField.java | 106 |
1 files changed, 64 insertions, 42 deletions
diff --git a/vm/reference/java/lang/reflect/VMField.java b/vm/reference/java/lang/reflect/VMField.java index 3b294a368..a4b4dbb58 100644 --- a/vm/reference/java/lang/reflect/VMField.java +++ b/vm/reference/java/lang/reflect/VMField.java @@ -40,20 +40,38 @@ package java.lang.reflect; final class VMField { + Class declaringClass; + String name; + int slot; + + VMField(Class declaringClass, String name, int slot) + { + this.declaringClass = declaringClass; + this.name = name; + this.slot = slot; + } + + public Class getDeclaringClass() + { + return declaringClass; + } + + public String getName() + { + return name; + } /** * Return the raw modifiers for this field. - * @param f the field concerned. * @return the field's modifiers */ - static native int getModifiersInternal(Field f); + native int getModifiersInternal(); /** * Gets the type of this field. - * @param f the field concerned. * @return the type of this field */ - static native Class getType(Field f); + native Class getType(); /** * Get the value of this Field. If it is primitive, it will be wrapped @@ -76,7 +94,6 @@ final class VMField * declaring class, even if the instance passed in belongs to a subclass * which declares another field to hide this one. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -96,14 +113,13 @@ final class VMField * @see #getFloat(Object) * @see #getDouble(Object) */ - static native Object get(Field f, Object o) + native Object get(Object o) throws IllegalAccessException; /** * Get the value of this boolean Field. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -117,14 +133,13 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native boolean getBoolean(Field f, Object o) + native boolean getBoolean(Object o) throws IllegalAccessException; /** * Get the value of this byte Field. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -138,14 +153,13 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native byte getByte(Field f, Object o) + native byte getByte(Object o) throws IllegalAccessException; /** * Get the value of this Field as a char. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @throws IllegalAccessException if you could not normally access this field * (i.e. it is not public) @@ -158,14 +172,13 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native char getChar(Field f, Object o) + native char getChar(Object o) throws IllegalAccessException; /** * Get the value of this Field as a short. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -179,14 +192,13 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native short getShort(Field f, Object o) + native short getShort(Object o) throws IllegalAccessException; /** * Get the value of this Field as an int. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -200,14 +212,13 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native int getInt(Field f, Object o) + native int getInt(Object o) throws IllegalAccessException; /** * Get the value of this Field as a long. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -221,14 +232,13 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native long getLong(Field f, Object o) + native long getLong(Object o) throws IllegalAccessException; /** * Get the value of this Field as a float. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -242,14 +252,13 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native float getFloat(Field f, Object o) + native float getFloat(Object o) throws IllegalAccessException; /** * Get the value of this Field as a double. If the field is static, * <code>o</code> will be ignored. * - * @param f the field concerned. * @param o the object to get the value of this Field from * @return the value of the Field * @throws IllegalAccessException if you could not normally access this field @@ -264,7 +273,7 @@ final class VMField * class initialization, which then failed * @see #get(Object) */ - static native double getDouble(Field f, Object o) + native double getDouble(Object o) throws IllegalAccessException; /** @@ -291,7 +300,6 @@ final class VMField * the field of the declaring class, even if the instance passed in belongs * to a subclass which declares another field to hide this one. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -313,14 +321,13 @@ final class VMField * @see #setFloat(Object, float) * @see #setDouble(Object, double) */ - static native void set(Field f, Object o, Object value) + native void set(Object o, Object value) throws IllegalAccessException; /** * Set this boolean Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -334,14 +341,13 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setBoolean(Field f, Object o, boolean value) + native void setBoolean(Object o, boolean value) throws IllegalAccessException; /** * Set this byte Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -355,14 +361,13 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setByte(Field f, Object o, byte value) + native void setByte(Object o, byte value) throws IllegalAccessException; /** * Set this char Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -376,14 +381,13 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setChar(Field f, Object o, char value) + native void setChar(Object o, char value) throws IllegalAccessException; /** * Set this short Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -397,14 +401,13 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setShort(Field f, Object o, short value) + native void setShort(Object o, short value) throws IllegalAccessException; /** * Set this int Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -418,14 +421,13 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setInt(Field f, Object o, int value) + native void setInt(Object o, int value) throws IllegalAccessException; /** * Set this long Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -439,14 +441,13 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setLong(Field f, Object o, long value) + native void setLong(Object o, long value) throws IllegalAccessException; /** * Set this float Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -460,14 +461,13 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setFloat(Field f, Object o, float value) + native void setFloat(Object o, float value) throws IllegalAccessException; /** * Set this double Field. If the field is static, <code>o</code> will be * ignored. * - * @param f the field concerned. * @param o the object to set this Field on * @param value the value to set this Field to * @throws IllegalAccessException if you could not normally access this field @@ -481,15 +481,37 @@ final class VMField * class initialization, which then failed * @see #set(Object, Object) */ - static native void setDouble(Field f, Object o, double value) + native void setDouble(Object o, double value) throws IllegalAccessException; /** * Return the String in the Signature attribute for this field. If there * is no Signature attribute, return null. * - * @param f the field concerned. */ - static native String getSignature(Field f); + native String getSignature(); + + /** + * Compare two objects to see if they are semantically equivalent. + * Two Fields are semantically equivalent if they have the same declaring + * class, name, and type. Since you can't create a Field except through + * the VM, this is just the == relation. + * + * @param o the object to compare to + * @return <code>true</code> if they are equal; <code>false</code> if not + */ + public boolean equals(Object o) + { + if (!(o instanceof Field)) + return false; + Field that = (Field)o; + if (declaringClass != that.getDeclaringClass()) + return false; + if (!name.equals(that.getName())) + return false; + if (getType() != that.getType()) + return false; + return true; + } } |