jdk.internal.jvmci.code.stack

Interface InspectedFrame

All Known Implementing Classes:

HotSpotStackFrameReference

public interface InspectedFrame

Method Summary

Modifier and Type	Method and Description
int	getBytecodeIndex()
Object	getLocal(int index) Returns the value of the local at the given index.
ResolvedJavaMethod	getMethod()
boolean	hasVirtualObjects() Returns true if the stack frame is a compiled stack frame and there are virtual objects anywhere in the current state of the compiled method.
boolean	isMethod(ResolvedJavaMethod method) Checks if the current method is equal to the given method.
boolean	isVirtual(int index) Returns whether the local at the given index is a virtual object, and therefore the object returned by getLocal(int) is a copy.
void	materializeVirtualObjects(boolean invalidateCode) This method will materialize all virtual objects, deoptimize the stack frame and make sure that subsequent execution of the deoptimized frame uses the materialized values.

Method Detail

getLocal

Object getLocal(int index)

Returns the value of the local at the given index. Currently only works for object values. This value is a copy iff isVirtual(int) is true.

isVirtual

boolean isVirtual(int index)

Returns whether the local at the given index is a virtual object, and therefore the object returned by getLocal(int) is a copy.

hasVirtualObjects

boolean hasVirtualObjects()

Returns true if the stack frame is a compiled stack frame and there are virtual objects anywhere in the current state of the compiled method. This can return true even if isVirtual(int) return false for all locals.

materializeVirtualObjects

void materializeVirtualObjects(boolean invalidateCode)

This method will materialize all virtual objects, deoptimize the stack frame and make sure that subsequent execution of the deoptimized frame uses the materialized values.

getBytecodeIndex

int getBytecodeIndex()

Returns:

the current bytecode index

getMethod

ResolvedJavaMethod getMethod()

Returns:

the current method

isMethod

boolean isMethod(ResolvedJavaMethod method)

Checks if the current method is equal to the given method. This is semantically equivalent to method.equals(getMethod()), but can be implemented more efficiently.