private static MethodHandle createGWT(
MethodHandle test,
MethodHandle target,
MethodHandle fallback,
CacheEntry entry,
CallSite site) {
MethodHandle myTest = MethodHandles.insertArguments(test, 0, entry);
MethodHandle myTarget = MethodHandles.insertArguments(target, 0, entry);
MethodHandle myFallback = MethodHandles.insertArguments(fallback, 0, site);
MethodHandle guardWithTest = MethodHandles.guardWithTest(myTest, myTarget, myFallback);
return MethodHandles.convertArguments(guardWithTest, site.type());
}
public static CallSite bootstrap(Class caller, String name, MethodType type) {
JRubyCallSite site;
if (name == "call") {
site = new JRubyCallSite(caller, name, type, CallType.NORMAL);
} else {
site = new JRubyCallSite(caller, name, type, CallType.FUNCTIONAL);
}
MethodType fallbackType = type.insertParameterType(0, JRubyCallSite.class);
MethodHandle myFallback =
MethodHandles.insertArguments(
MethodHandles.lookup().findStatic(InvokeDynamicSupport.class, "fallback", fallbackType),
0,
site);
site.setTarget(myFallback);
return site;
}