private static void appendParameter(
StringBuilder builder, VariableElement parameter, TypeMirror type) {
Optional<AnnotationMirror> qualifier = InjectionAnnotations.getQualifier(parameter);
if (qualifier.isPresent()) {
builder.append(ErrorMessages.format(qualifier.get())).append(' ');
}
builder.append(nameOfType(type));
}
/**
* Formats an ExecutableElement as if it were contained within the container, if the container is
* present.
*/
public String format(ExecutableElement method, Optional<DeclaredType> container) {
StringBuilder builder = new StringBuilder();
TypeElement type = MoreElements.asType(method.getEnclosingElement());
ExecutableType executableType = MoreTypes.asExecutable(method.asType());
if (container.isPresent()) {
executableType = MoreTypes.asExecutable(types.asMemberOf(container.get(), method));
type = MoreElements.asType(container.get().asElement());
}
// TODO(cgruber): AnnotationMirror formatter.
List<? extends AnnotationMirror> annotations = method.getAnnotationMirrors();
if (!annotations.isEmpty()) {
Iterator<? extends AnnotationMirror> annotationIterator = annotations.iterator();
for (int i = 0; annotationIterator.hasNext(); i++) {
if (i > 0) {
builder.append(' ');
}
builder.append(ErrorMessages.format(annotationIterator.next()));
}
builder.append(' ');
}
builder.append(nameOfType(executableType.getReturnType()));
builder.append(' ');
builder.append(type.getQualifiedName());
builder.append('.');
builder.append(method.getSimpleName());
builder.append('(');
checkState(method.getParameters().size() == executableType.getParameterTypes().size());
Iterator<? extends VariableElement> parameters = method.getParameters().iterator();
Iterator<? extends TypeMirror> parameterTypes = executableType.getParameterTypes().iterator();
for (int i = 0; parameters.hasNext(); i++) {
if (i > 0) {
builder.append(", ");
}
appendParameter(builder, parameters.next(), parameterTypes.next());
}
builder.append(')');
return builder.toString();
}