gnu.jel
Class OPcall

java.lang.Object
  |
  +--gnu.jel.OP
        |
        +--gnu.jel.OPcall

public class OPcall
extends OP

A tree node, representing a method call (field/local variable load).


Field Summary
 java.lang.reflect.Member m
          Holds method to be executed
 int nplv
          local variable number (in case m=null), number of formal parameters of the method to call otherwise.
 
Fields inherited from class gnu.jel.OP
chi, resID, resType, specialTypes, unwrapType
 
Constructor Summary
OPcall(int lvarn, java.lang.Class type)
          Prepares access to the local variable (formal parameter) of method.
OPcall(java.util.Stack paramOPs, java.lang.reflect.Member m, boolean aEval)
          Prepares a new method/field call/get operation to be added to the code.
 
Method Summary
 void compile(ClassFile cf)
          Called to generate the code implementing this OP.
 java.lang.Object eval()
          Attempts to evaluate this function.
 
Methods inherited from class gnu.jel.OP
isWidening, isWidening, narrow, typeID, typeIDObject, widen
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

m

public java.lang.reflect.Member m
Holds method to be executed

nplv

public int nplv
local variable number (in case m=null), number of formal parameters of the method to call otherwise.
Constructor Detail

OPcall

public OPcall(java.util.Stack paramOPs,
              java.lang.reflect.Member m,
              boolean aEval)
       throws CompilationException
Prepares a new method/field call/get operation to be added to the code.
Parameters:
paramOPs - stack holding the operands
m - method/field to call/get.
aEval - indicates if the method call should be attempted at the compile time

OPcall

public OPcall(int lvarn,
              java.lang.Class type)
Prepares access to the local variable (formal parameter) of method.
Parameters:
lvar - local variable number.
type - local variable type.
Method Detail

eval

public java.lang.Object eval()
                      throws java.lang.Exception
Attempts to evaluate this function.
Overrides:
eval in class OP
Parameters:
list - is the list of OPs this one belong to, if eval is unsuccessful this list is not modified.

compile

public void compile(ClassFile cf)
Description copied from class: OP
Called to generate the code implementing this OP.
Overrides:
compile in class OP
Following copied from class: gnu.jel.OP
Parameters:
cf - class file with a new open method to write the code into.