Module org.htmlunit.corejs

Package org.htmlunit.corejs.javascript

Class ACallFrame<T extends ACallFrame<T,U>,U extends ACompilerData<?,U>>

java.lang.Object

org.htmlunit.corejs.javascript.ACallFrame<T,U>

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

CallFrameV2

public abstract class ACallFrame<T extends ACallFrame<T,U>,U extends ACompilerData<?,U>>
extends Object
implements Serializable

Interface representing a call frame in the interpreter. This abstraction allows both the original interpreter's CallFrame and InterpreterV2's CallFrameV2 to be used interchangeably for stack traces and debugging purposes.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
U	compilerData
final DebugFrame	debuggerFrame
final double[]	doubleStack
final short	emptyStackTop
ScriptOrFn<?>	fnOrScript
final short	frameIndex
boolean	frozen
final int	localShift
final Object	newTarget
final T	parentFrame
final int	parentPC
int	pc
final ACallFrame<?,?>	previousInterpreterFrame
Object	result
double	resultDbl
VarScope	scope
final Object[]	stack
final byte[]	stackAttributes
int	stackTop
Object	thisObj
Object	throwable
final boolean	useActivation
ACallFrame<T,U>	varSource

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ACallFrame(T original, T parentFrame, ACallFrame<?,?> previousInterpreterFrame)
protected	ACallFrame(T original, T parentFrame, ACallFrame<?,?> previousInterpreterFrame, boolean copyStack, boolean keepFrozen)

Method Summary

Modifier and Type	Method	Description
abstract DebuggableScript	getData()	Returns the debuggable script data associated with this frame.
ScriptOrFn<?>	getFnOrScript()
abstract int	getFrameIndex()	Returns the index of this frame in the call stack (0 for the top-level frame).
abstract ACallFrame<T,U>	getParentFrame()	Returns the parent frame, or null if this is the top-level frame.
int	getParentPC()
abstract int	getPcSourceLineStart()	Returns the program counter position for source line information.
ACallFrame<?,?>	getPreviousInterpreterFrame()

Methods inherited from class java.lang.Object

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

Field Details

parentFrame

public final T extends ACallFrame<T,U> parentFrame

frameIndex

public final short frameIndex

previousInterpreterFrame

public final ACallFrame<?,?> previousInterpreterFrame

parentPC

public final int parentPC

frozen

public boolean frozen

fnOrScript

public ScriptOrFn<?> fnOrScript

compilerData

public U extends ACompilerData<?,U> compilerData

stack

public final Object[] stack

stackAttributes

public final byte[] stackAttributes

doubleStack

public final double[] doubleStack

result

public Object result

resultDbl

public double resultDbl

pc

public int pc

stackTop

public int stackTop

scope

public VarScope scope

thisObj

public Object thisObj

newTarget

public final Object newTarget

debuggerFrame

public final DebugFrame debuggerFrame

useActivation

public final boolean useActivation

varSource

public ACallFrame<T extends ACallFrame<T,U>,U extends ACompilerData<?,U>> varSource

localShift

public final int localShift

emptyStackTop

public final short emptyStackTop

throwable

public Object throwable

Constructor Details

ACallFrame

protected ACallFrame(T original,
 T parentFrame,
 ACallFrame<?,?> previousInterpreterFrame)

ACallFrame

protected ACallFrame(T original,
 T parentFrame,
 ACallFrame<?,?> previousInterpreterFrame,
 boolean copyStack,
 boolean keepFrozen)

Method Details

getFrameIndex

public abstract int getFrameIndex()

Returns the index of this frame in the call stack (0 for the top-level frame).

getParentFrame

public abstract ACallFrame<T,U> getParentFrame()

Returns the parent frame, or null if this is the top-level frame.

getPcSourceLineStart

public abstract int getPcSourceLineStart()

Returns the program counter position for source line information. For the original interpreter, this is the PC at the start of the current source line. For InterpreterV2, this may be the current PC.

getData

public abstract DebuggableScript getData()

Returns the debuggable script data associated with this frame.

getParentPC

public int getParentPC()

getPreviousInterpreterFrame

public ACallFrame<?,?> getPreviousInterpreterFrame()

getFnOrScript

public ScriptOrFn<?> getFnOrScript()