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495 lines (451 loc) · 18.5 KB
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/*
* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
*
* Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product
* that is described in this document. In particular, and without limitation, these intellectual property
* rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or
* more additional patents or pending patent applications in the U.S. and in other countries.
*
* U.S. Government Rights - Commercial software. Government users are subject to the Sun
* Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its
* supplements.
*
* Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or
* registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks
* are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the
* U.S. and other countries.
*
* UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open
* Company, Ltd.
*/
package com.sun.max.vm.object;
import com.sun.max.annotate.*;
import com.sun.max.unsafe.*;
import com.sun.max.vm.reference.*;
/**
* This class implements a facade for tuple class (i.e. non-array and non-hybrid objects)
* references that allows access to object fields with object parameters instead of {@code Reference}
* parameters.
*
* @author Bernd Mathiske
*/
public final class TupleAccess {
private TupleAccess() {
}
/**
* Reads a byte from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static byte readByte(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readByte(offset);
}
/**
* Reads a byte from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static byte readByte(Object tuple, int offset) {
return Reference.fromJava(tuple).readByte(offset);
}
/**
* Write a byte into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeByte(Object tuple, Offset offset, byte value) {
Reference.fromJava(tuple).writeByte(offset, value);
}
/**
* Write a byte into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeByte(Object tuple, int offset, byte value) {
Reference.fromJava(tuple).writeByte(offset, value);
}
/**
* Reads a boolean from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static boolean readBoolean(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readBoolean(offset);
}
/**
* Reads a boolean from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static boolean readBoolean(Object tuple, int offset) {
return Reference.fromJava(tuple).readBoolean(offset);
}
/**
* Write a boolean into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeBoolean(Object tuple, Offset offset, boolean value) {
Reference.fromJava(tuple).writeBoolean(offset, value);
}
/**
* Write a boolean into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeBoolean(Object tuple, int offset, boolean value) {
Reference.fromJava(tuple).writeBoolean(offset, value);
}
/**
* Reads a short from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static short readShort(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readShort(offset);
}
/**
* Reads a short from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static short readShort(Object tuple, int offset) {
return Reference.fromJava(tuple).readShort(offset);
}
/**
* Write a short into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeShort(Object tuple, Offset offset, short value) {
Reference.fromJava(tuple).writeShort(offset, value);
}
/**
* Write a short into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeShort(Object tuple, int offset, short value) {
Reference.fromJava(tuple).writeShort(offset, value);
}
/**
* Reads a char from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static char readChar(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readChar(offset);
}
/**
* Reads a char from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static char readChar(Object tuple, int offset) {
return Reference.fromJava(tuple).readChar(offset);
}
/**
* Write a char into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeChar(Object tuple, Offset offset, char value) {
Reference.fromJava(tuple).writeChar(offset, value);
}
/**
* Write a char into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeChar(Object tuple, int offset, char value) {
Reference.fromJava(tuple).writeChar(offset, value);
}
/**
* Reads an int from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static int readInt(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readInt(offset);
}
/**
* Reads an int from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static int readInt(Object tuple, int offset) {
return Reference.fromJava(tuple).readInt(offset);
}
/**
* Write an int into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeInt(Object tuple, Offset offset, int value) {
Reference.fromJava(tuple).writeInt(offset, value);
}
/**
* Write an int into the specified object at the specified offset.
*
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeInt(Object tuple, int offset, int value) {
Reference.fromJava(tuple).writeInt(offset, value);
}
/**
* Reads a float from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static float readFloat(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readFloat(offset);
}
/**
* Reads a float from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static float readFloat(Object tuple, int offset) {
return Reference.fromJava(tuple).readFloat(offset);
}
/**
* Write a float into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeFloat(Object tuple, Offset offset, float value) {
Reference.fromJava(tuple).writeFloat(offset, value);
}
/**
* Write a float into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeFloat(Object tuple, int offset, float value) {
Reference.fromJava(tuple).writeFloat(offset, value);
}
/**
* Reads a long from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static long readLong(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readLong(offset);
}
/**
* Reads a long from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static long readLong(Object tuple, int offset) {
return Reference.fromJava(tuple).readLong(offset);
}
/**
* Write a long into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeLong(Object tuple, Offset offset, long value) {
Reference.fromJava(tuple).writeLong(offset, value);
}
/**
* Write a long into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeLong(Object tuple, int offset, long value) {
Reference.fromJava(tuple).writeLong(offset, value);
}
/**
* Reads a double from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static double readDouble(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readDouble(offset);
}
/**
* Reads a double from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static double readDouble(Object tuple, int offset) {
return Reference.fromJava(tuple).readDouble(offset);
}
/**
* Write a double into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeDouble(Object tuple, Offset offset, double value) {
Reference.fromJava(tuple).writeDouble(offset, value);
}
/**
* Write a double into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeDouble(Object tuple, int offset, double value) {
Reference.fromJava(tuple).writeDouble(offset, value);
}
/**
* Reads a word from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static Word readWord(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readWord(offset);
}
/**
* Reads a word from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static Word readWord(Object tuple, int offset) {
return Reference.fromJava(tuple).readWord(offset);
}
/**
* Write a word into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeWord(Object tuple, Offset offset, Word value) {
Reference.fromJava(tuple).writeWord(offset, value);
}
/**
* Write a word into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeWord(Object tuple, int offset, Word value) {
Reference.fromJava(tuple).writeWord(offset, value);
}
/**
* Reads a reference from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static Object readObject(Object tuple, Offset offset) {
return Reference.fromJava(tuple).readReference(offset).toJava();
}
/**
* Reads a reference from the specified object at the specified offset.
* @param tuple the object to read the value from
* @param offset the offset from the origin of the object
* @return the value at the specified index from the object
*/
@INLINE
public static Object readObject(Object tuple, int offset) {
return Reference.fromJava(tuple).readReference(offset).toJava();
}
/**
* Writes a reference into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeObject(Object tuple, Offset offset, Object value) {
Reference.fromJava(tuple).writeReference(offset, Reference.fromJava(value));
}
/**
* Writes a reference into the specified object at the specified offset.
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@INLINE
public static void writeObject(Object tuple, int offset, Object value) {
Reference.fromJava(tuple).writeReference(offset, Reference.fromJava(value));
}
/**
* Writes a reference into the specified object at the specified offset.
*
* This non-inline version is required for the JIT templates. These templates
* cannot contain reference literals while the compiled version of {@link #writeObject(Object, int, Object)}
* might depending on any write barrier configured for the VM.
*
* @param tuple the object to write the value into
* @param offset the offset from the origin of the object
* @param value the value to write into the object
*/
@NEVER_INLINE
public static void noninlineWriteObject(Object tuple, int offset, Object value) {
writeObject(tuple, offset, value);
}
}