public static CallAdapter createFor(
CallType callType, MethAddr methAddr, Operand args[], Operand closure) {
CallSite callSite = getCallSiteFor(callType, methAddr);
if (callType == CallType.UNKNOWN)
return new AttrAssignCallAdapter(callSite, methAddr.getName(), args);
if (containsSplat(args)) return new ManyArgBlockSplatCallAdapter(callSite, args, closure);
switch (args.length) {
case 0:
if (closure != null) return new NoArgBlockOperandCallAdapter(callSite, args, closure);
return new NoArgNoBlockOperandCallAdapter(callSite, args);
case 1:
if (isFixnum(args) && closure == null) {
return new OneArgNoBlockFixnumCallAdapter(callSite, args);
}
if (isConstant(args) && closure == null)
return new OneArgNoBlockConstantCallAdapter(callSite, args);
if (closure != null) return new OneArgBlockOperandCallAdapter(callSite, args, closure);
return new OneArgNoBlockOperandCallAdapter(callSite, args);
case 2:
if (isConstant(args) && closure == null)
return new TwoArgNoBlockConstantCallAdapter(callSite, args);
if (closure != null) return new TwoArgBlockOperandCallAdapter(callSite, args, closure);
return new TwoArgNoBlockOperandCallAdapter(callSite, args);
case 3:
if (isConstant(args) && closure == null)
return new ThreeArgNoBlockConstantCallAdapter(callSite, args);
if (closure != null) return new ThreeArgBlockOperandCallAdapter(callSite, args, closure);
return new ThreeArgNoBlockOperandCallAdapter(callSite, args);
case 4:
if (isConstant(args) && closure == null)
return new FourArgNoBlockConstantCallAdapter(callSite, args);
if (closure == null) return new FourArgNoBlockOperandCallAdapter(callSite, args);
}
return new ManyArgBlockOperandCallAdapter(callSite, args, closure);
}
private static CallSite getCallSiteFor(CallType callType, MethAddr methAddr) {
assert callType != null : "Calltype should never be null";
String name = methAddr.toString();
switch (callType) {
case NORMAL:
return MethodIndex.getCallSite(name);
case FUNCTIONAL:
return MethodIndex.getFunctionalCallSite(name);
case VARIABLE:
return MethodIndex.getVariableCallSite(name);
case SUPER:
return MethodIndex.getSuperCallSite();
case UNKNOWN:
}
return null; // fallthrough for unknown
}