/**
* Get argument information.
*
* @see ParameterImpl
* @return an array of ParameterImpl, one element per argument in the order the arguments are
* present.
*/
public Parameter[] parameters() {
// generate the parameters on the fly: they're not cached
List<VarSymbol> params = sym.params();
Parameter result[] = new Parameter[params.length()];
int i = 0;
for (VarSymbol param : params) {
result[i++] = new ParameterImpl(env, param);
}
return result;
}
/**
* Returns the elements of this annotation type. Returns an empty array if there are none.
* Elements are always public, so no need to filter them.
*/
public AnnotationTypeElementDoc[] elements() {
Name.Table names = tsym.name.table;
List<AnnotationTypeElementDoc> elements = new List<AnnotationTypeElementDoc>();
for (Scope.Entry e = tsym.members().elems; e != null; e = e.sibling) {
if (e.sym != null && e.sym.kind == Kinds.MTH) {
MethodSymbol s = (MethodSymbol) e.sym;
elements = elements.prepend(env.getAnnotationTypeElementDoc(s));
}
}
return elements.toArray(new AnnotationTypeElementDoc[elements.length()]);
}
/**
* Checks if there is a method with the provided name. In case of multiple methods (overloading),
* only the first method decides if EXISTS_BY_USER or EXISTS_BY_LOMBOK is returned.
*
* @param methodName the method name to check for.
* @param node Any node that represents the Type (JCClassDecl) to look in, or any child node
* thereof.
* @param caseSensitive If the search should be case sensitive.
* @param params The number of parameters the method should have; varargs count as 0-*. Set to -1
* to find any method with the appropriate name regardless of parameter count.
*/
public static MemberExistsResult methodExists(
String methodName, JavacNode node, boolean caseSensitive, int params) {
node = upToTypeNode(node);
if (node != null && node.get() instanceof JCClassDecl) {
for (JCTree def : ((JCClassDecl) node.get()).defs) {
if (def instanceof JCMethodDecl) {
JCMethodDecl md = (JCMethodDecl) def;
String name = md.name.toString();
boolean matches =
caseSensitive ? name.equals(methodName) : name.equalsIgnoreCase(methodName);
if (matches) {
if (params > -1) {
List<JCVariableDecl> ps = md.params;
int minArgs = 0;
int maxArgs = 0;
if (ps != null && ps.length() > 0) {
minArgs = ps.length();
if ((ps.last().mods.flags & Flags.VARARGS) != 0) {
maxArgs = Integer.MAX_VALUE;
minArgs--;
} else {
maxArgs = minArgs;
}
}
if (params < minArgs || params > maxArgs) continue;
}
return getGeneratedBy(def) == null
? MemberExistsResult.EXISTS_BY_USER
: MemberExistsResult.EXISTS_BY_LOMBOK;
}
}
}
}
return MemberExistsResult.NOT_EXISTS;
}
public AnnotationDesc[] receiverAnnotations() {
// TODO: change how receiver annotations are output!
Type recvtype = sym.type.asMethodType().recvtype;
if (recvtype == null) {
return new AnnotationDesc[0];
}
List<? extends Compound> typeAnnos = recvtype.typeAnnotations;
AnnotationDesc result[] = new AnnotationDesc[typeAnnos.length()];
int i = 0;
for (Attribute.Compound a : typeAnnos) {
result[i++] = new AnnotationDescImpl(env, a);
}
return result;
}
@Override
public void visitTry(JCTry tree) {
aPrint("try ");
List<?> resources = readObject(tree, "resources", List.nil());
int len = resources.length();
switch (len) {
case 0:
break;
case 1:
print("(");
JCVariableDecl decl = (JCVariableDecl) resources.get(0);
flagMod = -1L & ~FINAL;
printVarDefInline(decl);
print(") ");
break;
default:
println("(");
indent++;
int c = 0;
for (Object i : resources) {
align();
flagMod = -1L & ~FINAL;
printVarDefInline((JCVariableDecl) i);
if (++c == len) {
print(") ");
} else {
println(";", (JCTree) i);
}
}
indent--;
}
println("{");
indent++;
for (JCStatement stat : tree.body.stats) print(stat);
indent--;
aPrint("}");
for (JCCatch catchBlock : tree.catchers) {
printCatch(catchBlock);
}
if (tree.finalizer != null) {
println(" finally {");
indent++;
for (JCStatement stat : tree.finalizer.stats) print(stat);
indent--;
aPrint("}");
}
println(tree);
}
/**
* Process a single compound annotation, returning its Attribute. Used from MemberEnter for
* attaching the attributes to the annotated symbol.
*/
Attribute.Compound enterAnnotation(JCAnnotation a, Type expected, Env<AttrContext> env) {
// The annotation might have had its type attributed (but not checked)
// by attr.attribAnnotationTypes during MemberEnter, in which case we do not
// need to do it again.
Type at =
(a.annotationType.type != null
? a.annotationType.type
: attr.attribType(a.annotationType, env));
a.type = chk.checkType(a.annotationType.pos(), at, expected);
if (a.type.isErroneous())
return new Attribute.Compound(a.type, List.<Pair<MethodSymbol, Attribute>>nil());
if ((a.type.tsym.flags() & Flags.ANNOTATION) == 0) {
log.error(a.annotationType.pos(), "not.annotation.type", a.type.toString());
return new Attribute.Compound(a.type, List.<Pair<MethodSymbol, Attribute>>nil());
}
List<JCExpression> args = a.args;
if (args.length() == 1 && args.head.getTag() != JCTree.ASSIGN) {
// special case: elided "value=" assumed
args.head = make.at(args.head.pos).Assign(make.Ident(names.value), args.head);
}
ListBuffer<Pair<MethodSymbol, Attribute>> buf = new ListBuffer<Pair<MethodSymbol, Attribute>>();
for (List<JCExpression> tl = args; tl.nonEmpty(); tl = tl.tail) {
JCExpression t = tl.head;
if (t.getTag() != JCTree.ASSIGN) {
log.error(t.pos(), "annotation.value.must.be.name.value");
continue;
}
JCAssign assign = (JCAssign) t;
if (assign.lhs.getTag() != JCTree.IDENT) {
log.error(t.pos(), "annotation.value.must.be.name.value");
continue;
}
JCIdent left = (JCIdent) assign.lhs;
Symbol method =
rs.resolveQualifiedMethod(left.pos(), env, a.type, left.name, List.<Type>nil(), null);
left.sym = method;
left.type = method.type;
if (method.owner != a.type.tsym)
log.error(left.pos(), "no.annotation.member", left.name, a.type);
Type result = method.type.getReturnType();
Attribute value = enterAttributeValue(result, assign.rhs, env);
if (!method.type.isErroneous())
buf.append(new Pair<MethodSymbol, Attribute>((MethodSymbol) method, value));
t.type = result;
}
return new Attribute.Compound(a.type, buf.toList());
}