Class BytecodeDSLAccess

java.lang.Object

com.oracle.truffle.api.bytecode.BytecodeDSLAccess

public abstract sealed class BytecodeDSLAccess
extends Object

Accessor class used to abstract away frame and bytecode array accesses in the generated code. Do not use directly.

Since:

24.2

Method Summary

Modifier and Type	Method	Description
abstract ByteArraySupport	getByteArraySupport()	Returns a ByteArraySupport to use for byte array accesses.
abstract FrameExtensions	getFrameExtensions()	Returns a FrameExtensions to use for frame accesses.
static final BytecodeDSLAccess	lookup(Object token, boolean allowUnsafe)	Obtains an accessor.
abstract int	readInt(int[] arr, int index)	Reads from an int array.
abstract <T> T	readObject(T[] arr, int index)	Reads from an Object array.
abstract <T> T	uncheckedCast(Object arr, Class<T> clazz)	Casts a value to the given class.
abstract void	writeInt(int[] arr, int index, int value)	Writes to an int array.
abstract <T> void	writeObject(T[] arr, int index, T value)	Writes to an Object array.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

lookup

public static final BytecodeDSLAccess lookup(Object token,
 boolean allowUnsafe)

Obtains an accessor. Used by generated code; do not use directly.

Since:

24.2

getByteArraySupport

public abstract ByteArraySupport getByteArraySupport()

Returns a ByteArraySupport to use for byte array accesses.

Since:

24.2

getFrameExtensions

public abstract FrameExtensions getFrameExtensions()

Returns a FrameExtensions to use for frame accesses.

Since:

24.2

readInt

public abstract int readInt(int[] arr,
 int index)

Reads from an int array.

Since:

24.2

writeInt

public abstract void writeInt(int[] arr,
 int index,
 int value)

Writes to an int array.

Since:

24.2

readObject

public abstract <T> T readObject(T[] arr,
 int index)

Reads from an Object array.

Since:

24.2

writeObject

public abstract <T> void writeObject(T[] arr,
 int index,
 T value)

Writes to an Object array.

Since:

24.2

uncheckedCast

public abstract <T> T uncheckedCast(Object arr,
 Class<T> clazz)

Casts a value to the given class. Also assumes non-null. If used in the form uncheckedCast(this.field, ...) and the field is a final field, then the field will get transformed into an immutable field read.

Since:

24.2