com.oracle.truffle.api.frame

Interface FrameInstance

public interface FrameInstance

Represents a current frame instance on the stack. Please note that any frame instance must not be used after the iterateFrames() method returned.

Since:

0.8 or earlier

See Also:

To iterate the current frame instances on the stack.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	FrameInstance.FrameAccess Access mode for FrameInstance.getFrame(FrameAccess).

Method Summary

Modifier and Type	Method and Description
Node	getCallNode() Returns a node representing the callsite of the next new target on the stack.
CallTarget	getCallTarget() The CallTarget being invoked in this frame.
Frame	getFrame(FrameInstance.FrameAccess access) Accesses the underlying frame using a specified access mode.
boolean	isVirtualFrame()

Method Detail

getFrame

Frame getFrame(FrameInstance.FrameAccess access)

Accesses the underlying frame using a specified access mode.

Since:

0.23

See Also:

FrameInstance.FrameAccess

isVirtualFrame

boolean isVirtualFrame()

Since:

0.8 or earlier

getCallNode

Node getCallNode()

Returns a node representing the callsite of the next new target on the stack. This picture indicates how FrameInstance groups the stack.

                      ===============
  Current:         ,>|  CallTarget   | FrameInstance
                   |  ===============
  Caller:          '-|  CallNode     | FrameInstance
                   ,>|  CallTarget   |
                   |  ===============
                   '-|  CallNode     | FrameInstance
                     |  CallTarget   |
                      ===============
                           ...
                      ===============
                     |  CallNode     | FrameInstance
 Initial call:       |  CallTarget   |
                      ===============

 

Returns:

a node representing the callsite of the next new target on the stack. Null in case there is no upper target or if the target was not invoked using a direct or indirect call node.

Since:

0.8 or earlier

getCallTarget

CallTarget getCallTarget()

The CallTarget being invoked in this frame.

See FrameInstance.getCallNode() for the relation between call node and CallTarget.

Since:

0.8 or earlier