public boolean hasNext() {
if (nextProc != null) return true;
else {
if (!names.hasNext()) return false;
else {
String processorName = names.next();
Processor processor;
try {
try {
processor = (Processor) (processorCL.loadClass(processorName).newInstance());
} catch (ClassNotFoundException cnfe) {
log.error("proc.processor.not.found", processorName);
return false;
} catch (ClassCastException cce) {
log.error("proc.processor.wrong.type", processorName);
return false;
} catch (Exception e) {
log.error("proc.processor.cant.instantiate", processorName);
return false;
}
} catch (ClientCodeException e) {
throw e;
} catch (Throwable t) {
throw new AnnotationProcessingError(t);
}
nextProc = processor;
return true;
}
}
}
/** Handle a security exception thrown during initializing the Processor iterator. */
private void handleException(String key, Exception e) {
if (e != null) {
log.error(key, e.getLocalizedMessage());
throw new Abort(e);
} else {
log.error(key);
throw new Abort();
}
}
public Processor next() {
try {
return (Processor) (iterator.next());
} catch (Throwable t) {
if ("ServiceConfigurationError".equals(t.getClass().getSimpleName())) {
log.error("proc.bad.config.file", t.getLocalizedMessage());
} else {
log.error("proc.processor.constructor.error", t.getLocalizedMessage());
}
throw new Abort(t);
}
}
/**
* 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());
}
private boolean callProcessor(
Processor proc, Set<? extends TypeElement> tes, RoundEnvironment renv) {
try {
return proc.process(tes, renv);
} catch (BadClassFile ex) {
log.error("proc.cant.access.1", ex.sym, ex.getDetailValue());
return false;
} catch (CompletionFailure ex) {
StringWriter out = new StringWriter();
ex.printStackTrace(new PrintWriter(out));
log.error("proc.cant.access", ex.sym, ex.getDetailValue(), out.toString());
return false;
} catch (ClientCodeException e) {
throw e;
} catch (Throwable t) {
throw new AnnotationProcessingError(t);
}
}
public boolean hasNext() {
try {
return iterator.hasNext();
} catch (Throwable t) {
if ("ServiceConfigurationError".equals(t.getClass().getSimpleName())) {
log.error("proc.bad.config.file", t.getLocalizedMessage());
}
throw new Abort(t);
}
}
/** Report an operator lookup error. */
private Symbol reportErrorIfNeeded(DiagnosticPosition pos, Tag tag, Type... args) {
if (Stream.of(args).noneMatch(Type::isErroneous)) {
Name opName = operatorName(tag);
JCDiagnostic.Error opError =
(args.length) == 1
? Errors.OperatorCantBeApplied(opName, args[0])
: Errors.OperatorCantBeApplied1(opName, args[0], args[1]);
log.error(pos, opError);
}
return syms.noSymbol;
}
private List<ModuleSymbol> scanModulePath(ModuleSymbol toFind) {
ListBuffer<ModuleSymbol> results = new ListBuffer<>();
Map<Name, Location> namesInSet = new HashMap<>();
while (moduleLocationIterator.hasNext()) {
Set<Location> locns = (moduleLocationIterator.next());
namesInSet.clear();
for (Location l : locns) {
try {
Name n = names.fromString(fileManager.inferModuleName(l));
if (namesInSet.put(n, l) == null) {
ModuleSymbol msym = syms.enterModule(n);
if (msym.sourceLocation != null || msym.classLocation != null) {
// module has already been found, so ignore this instance
continue;
}
if (moduleLocationIterator.outer == StandardLocation.MODULE_SOURCE_PATH) {
msym.sourceLocation = l;
if (fileManager.hasLocation(StandardLocation.CLASS_OUTPUT)) {
msym.classLocation =
fileManager.getLocationForModule(
StandardLocation.CLASS_OUTPUT, msym.name.toString());
}
} else {
msym.classLocation = l;
}
if (moduleLocationIterator.outer == StandardLocation.SYSTEM_MODULES
|| moduleLocationIterator.outer == StandardLocation.UPGRADE_MODULE_PATH) {
msym.flags_field |= Flags.SYSTEM_MODULE;
}
if (toFind == msym || toFind == null) {
// Note: cannot return msym directly, because we must finish
// processing this set first
results.add(msym);
}
} else {
log.error(
Errors.DuplicateModuleOnPath(getDescription(moduleLocationIterator.outer), n));
}
} catch (IOException e) {
// skip location for now? log error?
}
}
if (toFind != null && results.nonEmpty()) return results.toList();
}
return results.toList();
}
public void visitTopLevel(JCCompilationUnit tree) {
JavaFileObject prev = log.useSource(tree.sourcefile);
boolean addEnv = false;
boolean isPkgInfo =
tree.sourcefile.isNameCompatible("package-info", JavaFileObject.Kind.SOURCE);
if (tree.pid != null) {
tree.packge = reader.enterPackage(TreeInfo.fullName(tree.pid));
if (tree.packageAnnotations.nonEmpty()) {
if (isPkgInfo) {
addEnv = true;
} else {
log.error(tree.packageAnnotations.head.pos(), "pkg.annotations.sb.in.package-info.java");
}
}
} else {
tree.packge = syms.unnamedPackage;
}
tree.packge.complete(); // Find all classes in package.
Env<AttrContext> env = topLevelEnv(tree);
// Save environment of package-info.java file.
if (isPkgInfo) {
Env<AttrContext> env0 = typeEnvs.get(tree.packge);
if (env0 == null) {
typeEnvs.put(tree.packge, env);
} else {
JCCompilationUnit tree0 = env0.toplevel;
if (!fileManager.isSameFile(tree.sourcefile, tree0.sourcefile)) {
log.warning(
tree.pid != null ? tree.pid.pos() : null, "pkg-info.already.seen", tree.packge);
if (addEnv
|| (tree0.packageAnnotations.isEmpty()
&& tree.docComments != null
&& tree.docComments.get(tree) != null)) {
typeEnvs.put(tree.packge, env);
}
}
}
}
classEnter(tree.defs, env);
if (addEnv) {
todo.append(env);
}
log.useSource(prev);
result = null;
}
/*
* Called retroactively to determine if a class loader was required,
* after we have failed to create one.
*/
private boolean needClassLoader(String procNames, Iterable<? extends File> workingpath) {
if (procNames != null) return true;
String procPath;
URL[] urls = new URL[1];
for (File pathElement : workingpath) {
try {
urls[0] = pathElement.toURI().toURL();
if (ServiceProxy.hasService(Processor.class, urls)) return true;
} catch (MalformedURLException ex) {
throw new AssertionError(ex);
} catch (ServiceProxy.ServiceConfigurationError e) {
log.error("proc.bad.config.file", e.getLocalizedMessage());
return true;
}
}
return false;
}
ServiceIterator(ClassLoader classLoader, Log log) {
String loadMethodName;
this.log = log;
try {
try {
loaderClass = Class.forName("java.util.ServiceLoader");
loadMethodName = "load";
jusl = true;
} catch (ClassNotFoundException cnfe) {
try {
loaderClass = Class.forName("sun.misc.Service");
loadMethodName = "providers";
jusl = false;
} catch (ClassNotFoundException cnfe2) {
// Fail softly if a loader is not actually needed.
this.iterator = handleServiceLoaderUnavailability("proc.no.service", null);
return;
}
}
// java.util.ServiceLoader.load or sun.misc.Service.providers
Method loadMethod = loaderClass.getMethod(loadMethodName, Class.class, ClassLoader.class);
Object result = loadMethod.invoke(null, Processor.class, classLoader);
// For java.util.ServiceLoader, we have to call another
// method to get the iterator.
if (jusl) {
loader = result; // Store ServiceLoader to call reload later
Method m = loaderClass.getMethod("iterator");
result = m.invoke(result); // serviceLoader.iterator();
}
// The result should now be an iterator.
this.iterator = (Iterator<?>) result;
} catch (Throwable t) {
log.error("proc.service.problem");
throw new Abort(t);
}
}
private <T extends Attribute.Compound> T replaceOne(
Placeholder<T> placeholder, Annotate.AnnotateRepeatedContext<T> ctx) {
Log log = ctx.log;
// Process repeated annotations
T validRepeated = ctx.processRepeatedAnnotations(placeholder.getPlaceholderFor(), sym);
if (validRepeated != null) {
// Check that the container isn't manually
// present along with repeated instances of
// its contained annotation.
ListBuffer<T> manualContainer = ctx.annotated.get(validRepeated.type.tsym);
if (manualContainer != null) {
log.error(
ctx.pos.get(manualContainer.first()),
"invalid.repeatable.annotation.repeated.and.container.present",
manualContainer.first().type.tsym);
}
}
// A null return will delete the Placeholder
return validRepeated;
}
/** Complain about a duplicate class. */
protected void duplicateClass(DiagnosticPosition pos, ClassSymbol c) {
log.error(pos, "duplicate.class", c.fullname);
}
public void visitClassDef(JCClassDecl tree) {
Symbol owner = env.info.scope.owner;
Scope enclScope = enterScope(env);
ClassSymbol c;
if (owner.kind == PCK) {
// We are seeing a toplevel class.
PackageSymbol packge = (PackageSymbol) owner;
for (Symbol q = packge; q != null && q.kind == PCK; q = q.owner) q.flags_field |= EXISTS;
c = reader.enterClass(tree.name, packge);
packge.members().enterIfAbsent(c);
if ((tree.mods.flags & PUBLIC) != 0 && !classNameMatchesFileName(c, env)) {
log.error(tree.pos(), "class.public.should.be.in.file", tree.name);
}
} else {
if (!tree.name.isEmpty() && !chk.checkUniqueClassName(tree.pos(), tree.name, enclScope)) {
result = null;
return;
}
if (owner.kind == TYP) {
// We are seeing a member class.
c = reader.enterClass(tree.name, (TypeSymbol) owner);
if ((owner.flags_field & INTERFACE) != 0) {
tree.mods.flags |= PUBLIC | STATIC;
}
} else {
// We are seeing a local class.
c = reader.defineClass(tree.name, owner);
c.flatname = chk.localClassName(c);
if (!c.name.isEmpty()) chk.checkTransparentClass(tree.pos(), c, env.info.scope);
}
}
tree.sym = c;
// Enter class into `compiled' table and enclosing scope.
if (chk.compiled.get(c.flatname) != null) {
duplicateClass(tree.pos(), c);
result = types.createErrorType(tree.name, (TypeSymbol) owner, Type.noType);
tree.sym = (ClassSymbol) result.tsym;
return;
}
chk.compiled.put(c.flatname, c);
enclScope.enter(c);
// Set up an environment for class block and store in `typeEnvs'
// table, to be retrieved later in memberEnter and attribution.
Env<AttrContext> localEnv = classEnv(tree, env);
typeEnvs.put(c, localEnv);
// Fill out class fields.
c.completer = memberEnter;
c.flags_field = chk.checkFlags(tree.pos(), tree.mods.flags, c, tree);
c.sourcefile = env.toplevel.sourcefile;
c.members_field = new Scope(c);
ClassType ct = (ClassType) c.type;
if (owner.kind != PCK && (c.flags_field & STATIC) == 0) {
// We are seeing a local or inner class.
// Set outer_field of this class to closest enclosing class
// which contains this class in a non-static context
// (its "enclosing instance class"), provided such a class exists.
Symbol owner1 = owner;
while ((owner1.kind & (VAR | MTH)) != 0 && (owner1.flags_field & STATIC) == 0) {
owner1 = owner1.owner;
}
if (owner1.kind == TYP) {
ct.setEnclosingType(owner1.type);
}
}
// Enter type parameters.
ct.typarams_field = classEnter(tree.typarams, localEnv);
// Add non-local class to uncompleted, to make sure it will be
// completed later.
if (!c.isLocal() && uncompleted != null) uncompleted.append(c);
// System.err.println("entering " + c.fullname + " in " + c.owner);//DEBUG
// Recursively enter all member classes.
classEnter(tree.defs, localEnv);
result = c.type;
}
private boolean checkOptionName(String optionName, Log log) {
boolean valid = isValidOptionName(optionName);
if (!valid)
log.error("proc.processor.bad.option.name", optionName, processor.getClass().getName());
return valid;
}
Attribute enterAttributeValue(Type expected, JCExpression tree, Env<AttrContext> env) {
// first, try completing the attribution value sym - if a completion
// error is thrown, we should recover gracefully, and display an
// ordinary resolution diagnostic.
try {
expected.tsym.complete();
} catch (CompletionFailure e) {
log.error(tree.pos(), "cant.resolve", Kinds.kindName(e.sym), e.sym);
return new Attribute.Error(expected);
}
if (expected.isPrimitive() || types.isSameType(expected, syms.stringType)) {
Type result = attr.attribExpr(tree, env, expected);
if (result.isErroneous()) return new Attribute.Error(expected);
if (result.constValue() == null) {
log.error(tree.pos(), "attribute.value.must.be.constant");
return new Attribute.Error(expected);
}
result = cfolder.coerce(result, expected);
return new Attribute.Constant(expected, result.constValue());
}
if (expected.tsym == syms.classType.tsym) {
Type result = attr.attribExpr(tree, env, expected);
if (result.isErroneous()) return new Attribute.Error(expected);
if (TreeInfo.name(tree) != names._class) {
log.error(tree.pos(), "annotation.value.must.be.class.literal");
return new Attribute.Error(expected);
}
return new Attribute.Class(types, (((JCFieldAccess) tree).selected).type);
}
if ((expected.tsym.flags() & Flags.ANNOTATION) != 0
|| types.isSameType(expected, syms.annotationType)) {
if (tree.getTag() != JCTree.ANNOTATION) {
log.error(tree.pos(), "annotation.value.must.be.annotation");
expected = syms.errorType;
}
return enterAnnotation((JCAnnotation) tree, expected, env);
}
if (expected.tag == TypeTags.ARRAY) { // should really be isArray()
if (tree.getTag() != JCTree.NEWARRAY) {
tree = make.at(tree.pos).NewArray(null, List.<JCExpression>nil(), List.of(tree));
}
JCNewArray na = (JCNewArray) tree;
if (na.elemtype != null) {
log.error(na.elemtype.pos(), "new.not.allowed.in.annotation");
return new Attribute.Error(expected);
}
ListBuffer<Attribute> buf = new ListBuffer<Attribute>();
for (List<JCExpression> l = na.elems; l.nonEmpty(); l = l.tail) {
buf.append(enterAttributeValue(types.elemtype(expected), l.head, env));
}
na.type = expected;
return new Attribute.Array(expected, buf.toArray(new Attribute[buf.length()]));
}
if (expected.tag == TypeTags.CLASS && (expected.tsym.flags() & Flags.ENUM) != 0) {
attr.attribExpr(tree, env, expected);
Symbol sym = TreeInfo.symbol(tree);
if (sym == null
|| TreeInfo.nonstaticSelect(tree)
|| sym.kind != Kinds.VAR
|| (sym.flags() & Flags.ENUM) == 0) {
log.error(tree.pos(), "enum.annotation.must.be.enum.constant");
return new Attribute.Error(expected);
}
VarSymbol enumerator = (VarSymbol) sym;
return new Attribute.Enum(expected, enumerator);
}
if (!expected.isErroneous()) log.error(tree.pos(), "annotation.value.not.allowable.type");
return new Attribute.Error(attr.attribExpr(tree, env, expected));
}