@Nullable
@Override
public IOException visitMarshaledReplacementNode(
MarshaledReplacementObjectNode node, @Nullable DelegatingMarshalContext context) {
assert context != null;
return node.getChild().accept(context.nodeVisitor, NoKey.instance());
}
/**
* Creates a new marshal context that delegates elementary marshal operations to the given marshal
* target.
*
* <p>In most cases, {@link #marshal(Object, Collection, MarshalTarget)} is the more appropriate
* high-level alternative to instantiating a marshal context explicitly.
*
* @param currentMarshaler {@link Marshaler} instance that will receive the returned marshal
* context as argument to {@link Marshaler#put(Object, MarshalContext)}
* @param marshalers collection of {@link Marshaler} instances to choose from when a marshaler
* invokes {@link MarshalContext#writeObject(Object, Key)} recursively
* @param marshalTarget marshal target used for elementary marshal operations
* @return the new marshal context
*/
public static DelegatingMarshalContext create(
Marshaler<?> currentMarshaler,
Collection<? extends Marshaler<?>> marshalers,
MarshalTarget marshalTarget) {
Objects.requireNonNull(currentMarshaler);
Objects.requireNonNull(marshalers);
Objects.requireNonNull(marshalTarget);
return new DelegatingMarshalContext(
NoKey.instance(), marshalTarget, currentMarshaler, ImmutableList.copyOf(marshalers), null);
}
private void requireValidNewToken(Key key) throws MarshalingException {
Objects.requireNonNull(key);
if (closed) {
throw new MarshalingException("Marshal context used after it was closed.");
} else if (entries.contains(key)) {
throw new MarshalingException(String.format("Entry with key '%s' already exists.", key));
} else if ((!(key instanceof NoKey) && entries.contains(NoKey.instance()))) {
throw new MarshalingException(
String.format(
"Tried to add key '%s' to serialization node that already contains empty key.", key));
} else if (key instanceof NoKey && !entries.isEmpty()) {
throw new MarshalingException(
String.format(
"Tried to add empty key to non-empty serialization node (already contains at least key '%s').",
entries.iterator().next()));
}
}