com.oracle.truffle.api.frame

Class FrameUtil

java.lang.Object

com.oracle.truffle.api.frame.FrameUtil

public final class FrameUtil
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
FrameUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	getBooleanSafe(Frame frame, FrameSlot frameSlot) Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).
static byte	getByteSafe(Frame frame, FrameSlot frameSlot) Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).
static double	getDoubleSafe(Frame frame, FrameSlot frameSlot) Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).
static float	getFloatSafe(Frame frame, FrameSlot frameSlot) Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).
static int	getIntSafe(Frame frame, FrameSlot frameSlot) Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).
static long	getLongSafe(Frame frame, FrameSlot frameSlot) Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).
static java.lang.Object	getObjectSafe(Frame frame, FrameSlot frameSlot) Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Methods inherited from class java.lang.Object

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

Constructor Detail

FrameUtil

public FrameUtil()

Method Detail

getObjectSafe

public static java.lang.Object getObjectSafe(Frame frame,
                             FrameSlot frameSlot)

Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Parameters:

frameSlot - the slot of the variable

Throws:

java.lang.IllegalStateException - if the slot kind does not match

See Also:

Frame.getObject(FrameSlot)

getByteSafe

public static byte getByteSafe(Frame frame,
               FrameSlot frameSlot)

Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Parameters:

frameSlot - the slot of the variable

Throws:

java.lang.IllegalStateException - if the slot kind does not match

See Also:

Frame.getByte(FrameSlot)

getBooleanSafe

public static boolean getBooleanSafe(Frame frame,
                     FrameSlot frameSlot)

Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Parameters:

frameSlot - the slot of the variable

Throws:

java.lang.IllegalStateException - if the slot kind does not match

See Also:

Frame.getBoolean(FrameSlot)

getIntSafe

public static int getIntSafe(Frame frame,
             FrameSlot frameSlot)

Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Parameters:

frameSlot - the slot of the variable

Throws:

java.lang.IllegalStateException - if the slot kind does not match

See Also:

Frame.getInt(FrameSlot)

getLongSafe

public static long getLongSafe(Frame frame,
               FrameSlot frameSlot)

Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Parameters:

frameSlot - the slot of the variable

Throws:

java.lang.IllegalStateException - if the slot kind does not match

See Also:

Frame.getLong(FrameSlot)

getDoubleSafe

public static double getDoubleSafe(Frame frame,
                   FrameSlot frameSlot)

Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Parameters:

frameSlot - the slot of the variable

Throws:

java.lang.IllegalStateException - if the slot kind does not match

See Also:

Frame.getDouble(FrameSlot)

getFloatSafe

public static float getFloatSafe(Frame frame,
                 FrameSlot frameSlot)

Read a frame slot that is guaranteed to be of the desired kind (either previously checked by a guard or statically known).

Parameters:

frameSlot - the slot of the variable

Throws:

java.lang.IllegalStateException - if the slot kind does not match

See Also:

Frame.getFloat(FrameSlot)