private void emitViewBindings(StringBuilder builder, ViewInjection injection) {
Collection<ViewBinding> viewBindings = injection.getViewBindings();
if (viewBindings.isEmpty()) {
return;
}
for (ViewBinding viewBinding : viewBindings) {
builder.append(" target.").append(viewBinding.getName()).append(" = ");
emitCastIfNeeded(builder, viewBinding.getType());
builder.append("view;\n");
}
}
private void emitReset(StringBuilder builder) {
builder.append(" public static void reset(").append(targetClass).append(" target) {\n");
if (parentInjector != null) {
builder.append(" ").append(parentInjector).append(".reset(target);\n\n");
}
for (ViewInjection injection : viewIdMap.values()) {
for (ViewBinding viewBinding : injection.getViewBindings()) {
builder.append(" target.").append(viewBinding.getName()).append(" = null;\n");
}
}
for (CollectionBinding collectionBinding : collectionBindings.keySet()) {
builder.append(" target.").append(collectionBinding.getName()).append(" = null;\n");
}
builder.append(" }\n");
}
private void parseInjectView(
Element element,
Map<TypeElement, ViewInjector> targetClassMap,
Set<String> erasedTargetNames) {
boolean hasError = false;
TypeElement enclosingElement = (TypeElement) element.getEnclosingElement();
// Verify that the target type extends from View.
TypeMirror elementType = element.asType();
if (elementType instanceof TypeVariable) {
TypeVariable typeVariable = (TypeVariable) elementType;
elementType = typeVariable.getUpperBound();
}
if (!isSubtypeOfType(elementType, VIEW_TYPE) && !isInterface(elementType)) {
error(
element,
"@InjectView fields must extend from View or be an interface. (%s.%s)",
enclosingElement.getQualifiedName(),
element.getSimpleName());
hasError = true;
}
// Verify common generated code restrictions.
hasError |= isInaccessibleViaGeneratedCode(InjectView.class, "fields", element);
hasError |= isBindingInWrongPackage(InjectView.class, element);
// Check for the other field annotation.
if (element.getAnnotation(InjectViews.class) != null) {
error(
element,
"Only one of @InjectView and @InjectViews is allowed. (%s.%s)",
enclosingElement.getQualifiedName(),
element.getSimpleName());
hasError = true;
}
if (hasError) {
return;
}
// Assemble information on the injection point.
int id = element.getAnnotation(InjectView.class).value();
ViewInjector injector = targetClassMap.get(enclosingElement);
if (injector != null) {
ViewInjection viewInjection = injector.getViewInjection(id);
if (viewInjection != null) {
Iterator<ViewBinding> iterator = viewInjection.getViewBindings().iterator();
if (iterator.hasNext()) {
ViewBinding existingBinding = iterator.next();
error(
element,
"Attempt to use @InjectView for an already injected ID %d on '%s'. (%s.%s)",
id,
existingBinding.getName(),
enclosingElement.getQualifiedName(),
element.getSimpleName());
return;
}
}
}
String name = element.getSimpleName().toString();
String type = elementType.toString();
boolean required = element.getAnnotation(Optional.class) == null;
ViewInjector viewInjector = getOrCreateTargetClass(targetClassMap, enclosingElement);
ViewBinding binding = new ViewBinding(name, type, required);
viewInjector.addView(id, binding);
// Add the type-erased version to the valid injection targets set.
erasedTargetNames.add(enclosingElement.toString());
}
