static MethodHandle buildJittedHandle(InvokeSite site, DynamicMethod method, boolean blockGiven) {
MethodHandle mh = null;
SmartBinder binder;
CompiledIRMethod compiledIRMethod = null;
if (method instanceof CompiledIRMethod) {
compiledIRMethod = (CompiledIRMethod) method;
} else if (method instanceof InterpretedIRMethod) {
DynamicMethod actualMethod = ((InterpretedIRMethod) method).getActualMethod();
if (actualMethod instanceof CompiledIRMethod) {
compiledIRMethod = (CompiledIRMethod) actualMethod;
}
}
if (compiledIRMethod != null) {
// attempt IR direct binding
// TODO: this will have to expand when we start specializing arities
binder = SmartBinder.from(site.signature).permute("context", "self", "arg.*", "block");
if (site.arity == -1) {
// already [], nothing to do
mh = (MethodHandle) compiledIRMethod.getHandle();
} else if (site.arity == 0) {
MethodHandle specific;
if ((specific = compiledIRMethod.getHandleFor(site.arity)) != null) {
mh = specific;
} else {
mh = (MethodHandle) compiledIRMethod.getHandle();
binder = binder.insert(2, "args", IRubyObject.NULL_ARRAY);
}
} else {
MethodHandle specific;
if ((specific = compiledIRMethod.getHandleFor(site.arity)) != null) {
mh = specific;
} else {
mh = (MethodHandle) compiledIRMethod.getHandle();
binder = binder.collect("args", "arg.*");
}
}
if (!blockGiven) {
binder = binder.append("block", Block.class, Block.NULL_BLOCK);
}
binder =
binder
.insert(1, "scope", StaticScope.class, compiledIRMethod.getStaticScope())
.append("class", RubyModule.class, compiledIRMethod.getImplementationClass());
mh = binder.invoke(mh).handle();
}
return mh;
}
static MethodHandle buildGenericHandle(
InvokeSite site, DynamicMethod method, RubyClass dispatchClass) {
SmartBinder binder;
binder =
SmartBinder.from(site.signature)
.permute("context", "self", "arg.*", "block")
.insert(
2,
new String[] {"rubyClass", "name"},
new Class[] {RubyModule.class, String.class},
dispatchClass,
site.name())
.insert(0, "method", DynamicMethod.class, method);
if (site.arity > 3) {
binder = binder.collect("args", "arg.*");
}
return binder.invokeVirtualQuiet(LOOKUP, "call").handle();
}
public Binder prepareBinder() {
SmartBinder binder = SmartBinder.from(signature);
// prepare arg[]
if (arity == -1) {
// do nothing, already have IRubyObject[] in args
} else if (arity == 0) {
binder = binder.insert(argOffset, "args", IRubyObject.NULL_ARRAY);
} else {
binder = binder.collect("args", "arg[0-9]+");
}
// add block if needed
if (signature.lastArgType() != Block.class) {
binder = binder.append("block", Block.NULL_BLOCK);
}
// bind to site
binder = binder.insert(0, "site", this);
return binder.binder();
}