@Override
public Object execute(VirtualFrame frame) {
final RubyArguments rubyArguments = frame.getArguments(RubyArguments.class);
final Object[] arguments = rubyArguments.getArguments();
final RubyClass arrayClass = getContext().getCoreLibrary().getArrayClass();
if (arguments.length <= index) {
return new RubyArray(arrayClass);
} else if (index == 0) {
return new RubyArray(arrayClass, new ObjectArrayStore(arguments));
} else {
return new RubyArray(
arrayClass, new ObjectArrayStore(Arrays.copyOfRange(arguments, index, arguments.length)));
}
}
@Override
public boolean doesRespondTo(VirtualFrame frame, RubyBasicObject receiverObject) {
// TODO(CS): copy-and-paste of the above - needs to be factored out
MethodCacheEntry entry = lookupInCache(receiverObject.getLookupNode());
if (entry == null) {
CompilerDirectives.transferToInterpreterAndInvalidate();
final RubyBasicObject boxedCallingSelf =
getContext().getCoreLibrary().box(RubyArguments.getSelf(frame.getArguments()));
try {
entry = new MethodCacheEntry(lookup(boxedCallingSelf, receiverObject, name), false);
} catch (UseMethodMissingException e) {
try {
entry =
new MethodCacheEntry(
lookup(boxedCallingSelf, receiverObject, "method_missing"), true);
} catch (UseMethodMissingException e2) {
throw new RaiseException(
getContext()
.getCoreLibrary()
.runtimeError(receiverObject.toString() + " didn't have a #method_missing"));
}
}
if (entry.isMethodMissing()) {
hasAnyMethodsMissing = true;
}
cache.put(receiverObject.getLookupNode(), entry);
if (cache.size() > RubyContext.GENERAL_DISPATCH_SIZE_WARNING_THRESHOLD) {
getContext()
.getRuntime()
.getWarnings()
.warn(
IRubyWarnings.ID.TRUFFLE,
getEncapsulatingSourceSection().getSource().getName(),
getEncapsulatingSourceSection().getStartLine(),
"general call node cache has " + cache.size() + " entries");
}
}
return !entry.isMethodMissing();
}
@Override
public Object dispatch(
VirtualFrame frame,
RubyBasicObject receiverObject,
RubyProc blockObject,
Object[] argumentsObjects) {
MethodCacheEntry entry = lookupInCache(receiverObject.getLookupNode());
if (entry == null) {
CompilerDirectives.transferToInterpreterAndInvalidate();
final RubyBasicObject boxedCallingSelf =
getContext().getCoreLibrary().box(RubyArguments.getSelf(frame.getArguments()));
try {
entry = new MethodCacheEntry(lookup(boxedCallingSelf, receiverObject, name), false);
} catch (UseMethodMissingException e) {
try {
entry =
new MethodCacheEntry(
lookup(boxedCallingSelf, receiverObject, "method_missing"), true);
} catch (UseMethodMissingException e2) {
throw new RaiseException(
getContext()
.getCoreLibrary()
.runtimeError(receiverObject.toString() + " didn't have a #method_missing"));
}
}
if (entry.isMethodMissing()) {
hasAnyMethodsMissing = true;
}
cache.put(receiverObject.getLookupNode(), entry);
if (cache.size() > RubyContext.GENERAL_DISPATCH_SIZE_WARNING_THRESHOLD) {
getContext()
.getRuntime()
.getWarnings()
.warn(
IRubyWarnings.ID.TRUFFLE,
getEncapsulatingSourceSection().getSource().getName(),
getEncapsulatingSourceSection().getStartLine(),
"general call node cache has " + cache.size() + " entries");
}
}
final Object[] argumentsToUse;
if (hasAnyMethodsMissing && entry.isMethodMissing()) {
final Object[] modifiedArgumentsObjects = new Object[1 + argumentsObjects.length];
modifiedArgumentsObjects[0] = getContext().newSymbol(name);
System.arraycopy(argumentsObjects, 0, modifiedArgumentsObjects, 1, argumentsObjects.length);
argumentsToUse = modifiedArgumentsObjects;
} else {
argumentsToUse = argumentsObjects;
}
return callNode.call(
frame,
entry.getMethod().getCallTarget(),
RubyArguments.pack(
entry.getMethod().getDeclarationFrame(), receiverObject, blockObject, argumentsToUse));
}