//
// Copyright (C) 2007 United States Government as represented by the
// Administrator of the National Aeronautics and Space Administration
// (NASA). All Rights Reserved.
//
// This software is distributed under the NASA Open Source Agreement
// (NOSA), version 1.3. The NOSA has been approved by the Open Source
// Initiative. See the file NOSA-1.3-JPF at the top of the distribution
// directory tree for the complete NOSA document.
//
// THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
// KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
// LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
// SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
// A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
// THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
// DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
//
package gov.nasa.jpf.util;
import gov.nasa.jpf.vm.ClassInfo;
import gov.nasa.jpf.vm.ElementInfo;
import gov.nasa.jpf.vm.MJIEnv;
import gov.nasa.jpf.vm.MethodInfo;
import gov.nasa.jpf.vm.ObjRef;
import gov.nasa.jpf.vm.VM;
/**
* a record that includes all information to perform a call
*/
public class Invocation {
MethodInfo mi;
Object[] args; // includes 'this' for instance methods
Object[] attrs;
public Invocation (MethodInfo mi, Object[] args, Object[] attrs){
this.mi = mi;
this.args = args;
this.attrs = attrs;
}
public MethodInfo getMethodInfo () {
return mi;
}
public Object[] getExplicitArguments () {
if (!mi.isStatic()){
Object[] a = new Object[args.length-1];
System.arraycopy(args,1,a,0,a.length);
return a;
} else {
return args;
}
}
public String[] getArgumentTypeNames() {
return mi.getArgumentTypeNames();
}
public String getArgumentValueLiteral(Object a) {
Class<?> cls = a.getClass();
if (cls == Boolean.class) return ((Boolean)a).toString();
if (cls == Byte.class) return ((Byte)a).toString();
if (cls == Character.class) return ((Character)a).toString();
if (cls == Short.class) return ((Short)a).toString();
if (cls == Integer.class) return ((Integer)a).toString();
if (cls == Long.class) return ((Long)a).toString();
if (cls == Float.class) return ((Float)a).toString();
if (cls == Double.class) return ((Double)a).toString();
if (cls == ObjRef.class) {
int ref = ((ObjRef)a).getReference();
if (ref != MJIEnv.NULL){
ElementInfo ei = VM.getVM().getElementInfo(ref);
ClassInfo ci = ei.getClassInfo();
String cname = ci.getName();
if (cname.equals("java.lang.String")){
return "\"" + ei.asString() + '"';
}
// <2do> we could probably do some more literals for java.lang.Class etc.
} else {
return "null";
}
}
return null; // no literal representation
}
public Object[] getArguments() {
return args;
}
public Object[] getAttrs() {
return attrs;
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("INVOKE[");
sb.append(mi.getName());
sb.append('(');
for (int i=0; i<args.length; i++){
if (i>0){
sb.append(',');
}
sb.append(args[i]);
}
sb.append(")]");
return sb.toString();
}
}