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

Class Operation

java.lang.Object

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

Direct Known Subclasses:

ASMOperation

public abstract class Operation
extends java.lang.Object

The abstract Operation class.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	maxLocals
protected java.lang.String	name

Constructor Summary

Constructors

Constructor	Description
Operation(int maxLocals)	Deprecated. use Operation(int, String) instead
Operation(int maxLocals, java.lang.String name)	Creates a new operation.

Method Summary

Modifier and Type	Method	Description
abstract java.lang.Object	exec(AbstractStackFrame frame)	Executes an operation.
java.util.List<?>	getInstructions()
int	getMaxLocals()
java.lang.String	getName()
java.lang.String	resolveLineNumber(int l)	Returns the line at the specified number.
java.lang.String	resolveVariableName(int slot, int l)	Resolves a variable name by its slot number and its index.
void	setName(java.lang.String name)

Methods inherited from class java.lang.Object

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

Field Detail

maxLocals

protected int maxLocals

name

protected java.lang.String name

Constructor Detail

Operation

public Operation(int maxLocals,
                 java.lang.String name)

Creates a new operation.

Parameters:

maxLocals - max locals

name - the operation name

Operation

public Operation(int maxLocals)

Deprecated.

use Operation(int, String) instead

Creates a new operation.

Parameters:

maxLocals - max locals

Method Detail

setName

public void setName(java.lang.String name)

exec

public abstract java.lang.Object exec(AbstractStackFrame frame)

Executes an operation.

Parameters:

frame - the frame for execution

Returns:

the result

getMaxLocals

public int getMaxLocals()

getName

public java.lang.String getName()

getInstructions

public java.util.List<?> getInstructions()

resolveLineNumber

public java.lang.String resolveLineNumber(int l)

Returns the line at the specified number.

Parameters:

l - the line number

Returns:

the line at the specified number

resolveVariableName

public java.lang.String resolveVariableName(int slot,
                                            int l)

Resolves a variable name by its slot number and its index.

Parameters:

slot - the slot number

l - the variable index

Returns:

the variable name