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

java.lang.Object
  extended by 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
protected  int maxLocals
           
protected  java.lang.String name
           
 
Constructor Summary
Operation(int maxLocals)
          Deprecated. use Operation(int, String) instead
Operation(int maxLocals, java.lang.String name)
          Creates a new operation.
 
Method Summary
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

Copyright 2007 IBM Corporation and others.
All Rights Reserved.