/**
* Given a packed descriptor listing methods and their type, populate the call site cache.
*
* <p>The format of the methods portion of the descriptor is name1;type1;name2;type2 where type1
* and type2 are a single capital letter N, F, V, or S for the four main call types. After the
* method portion, the other cache sizes are provided as a packed String of char values
* representing the numeric sizes. @see RuntimeCache#initOthers.
*
* @param descriptor The descriptor to use for populating call sites and caches
*/
public final void initFromDescriptor(String descriptor) {
String[] pieces = descriptor.split("\uFFFF");
CallSite[] sites = new CallSite[pieces.length - 1 / 2];
// if there's no call sites, don't process it
if (pieces[0].length() != 0) {
for (int i = 0; i < pieces.length - 1; i += 2) {
switch (pieces[i + 1].charAt(0)) {
case 'N':
sites[i / 2] = MethodIndex.getCallSite(pieces[i]);
break;
case 'F':
sites[i / 2] = MethodIndex.getFunctionalCallSite(pieces[i]);
break;
case 'V':
sites[i / 2] = MethodIndex.getVariableCallSite(pieces[i]);
break;
case 'S':
sites[i / 2] = MethodIndex.getSuperCallSite();
break;
default:
throw new RuntimeException(
"Unknown call type: " + pieces[i + 1] + " for method " + pieces[i]);
}
}
this.callSites = sites;
}
initOthers(pieces[pieces.length - 1]);
}
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
}