Package org.eclipse.m2m.atl.engine.emfvm

Class StackFrame

java.lang.Object

org.eclipse.m2m.atl.engine.emfvm.lib.AbstractStackFrame

org.eclipse.m2m.atl.engine.emfvm.StackFrame

public class StackFrame
extends AbstractStackFrame

The Stack Frame implementation.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.m2m.atl.engine.emfvm.lib.AbstractStackFrame

AbstractStackFrame.StackSequence

Field Summary

Fields inherited from class org.eclipse.m2m.atl.engine.emfvm.lib.AbstractStackFrame

caller, execEnv, localVars, operation

Constructor Summary

Constructors

Modifier	Constructor	Description
	StackFrame(ExecEnv execEnv)	Creates an empty StackFrame which refers to its ExecEnv.
	StackFrame(ExecEnv execEnv, ASMModule asmModule, Operation operation)	Creates a new StackFrame with the given parameters.
protected	StackFrame(StackFrame caller, Operation operation)	Creates a new StackFrame.

Method Summary

Modifier and Type	Method	Description
int	getLocation()	Returns the current location.
int	getPc()
protected String	getStringLocation()	Returns the current location.
AbstractStackFrame	newFrame(Operation operation)	Returns a new frame for the given operation.
String	resolveVariableName(int slot)	Returns the variable name at the given slot.
void	setPc(int pc)
String	toString()

Methods inherited from class org.eclipse.m2m.atl.engine.emfvm.lib.AbstractStackFrame

enter, getAsmModule, getCaller, getExecEnv, getLocalVariables, getLocalVars, getOperation, getOpName, getSourceLocation, getStack, leave, setLocalVars

Methods inherited from class java.lang.Object

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

Constructor Details

StackFrame

public StackFrame(ExecEnv execEnv,
 ASMModule asmModule,
 Operation operation)

Creates a new StackFrame with the given parameters.

Parameters:

execEnv - the execution environment

asmModule - the transformation module

operation - the main operation

StackFrame

protected StackFrame(StackFrame caller,
 Operation operation)

Creates a new StackFrame.

Parameters:

caller - the parent stack frame

operation - the operation

StackFrame

public StackFrame(ExecEnv execEnv)

Creates an empty StackFrame which refers to its ExecEnv.

Parameters:

execEnv - the ExecEnv

Method Details

newFrame

public AbstractStackFrame newFrame(Operation operation)

Returns a new frame for the given operation.

Specified by:

newFrame in class AbstractStackFrame

Parameters:

operation - the frame operation

Returns:

a new frame for the given operation

See Also:

• AbstractStackFrame.newFrame(org.eclipse.m2m.atl.engine.emfvm.lib.Operation)

getStringLocation

protected String getStringLocation()

Returns the current location.

Returns:

the current location

getLocation

public int getLocation()

Returns the current location.

Specified by:

getLocation in class AbstractStackFrame

Returns:

the current location

See Also:

• AbstractStackFrame.getLocation()

resolveVariableName

public String resolveVariableName(int slot)

Returns the variable name at the given slot.

Parameters:

slot - the slot

Returns:

the variable name at the given slot

toString

public String toString()

Overrides:

toString in class Object

See Also:

• Object.toString()

getPc

public int getPc()

setPc

public void setPc(int pc)