public ModuleSymbol findSingleModule() {
try {
JavaFileObject src_fo = getModuleInfoFromLocation(StandardLocation.SOURCE_PATH, Kind.SOURCE);
JavaFileObject class_fo =
getModuleInfoFromLocation(StandardLocation.CLASS_OUTPUT, Kind.CLASS);
JavaFileObject fo =
(src_fo == null)
? class_fo
: (class_fo == null) ? src_fo : classFinder.preferredFileObject(src_fo, class_fo);
ModuleSymbol msym;
if (fo == null) {
msym = syms.unnamedModule;
} else {
switch (fo.getKind()) {
case SOURCE:
if (!inFindSingleModule) {
try {
inFindSingleModule = true;
// Note: the following will trigger a re-entrant call to Modules.enter
msym = sourceFileCompleter.complete(fo);
msym.module_info.classfile = fo;
} finally {
inFindSingleModule = false;
}
} else {
// the module-info.java does not contain a module declaration,
// avoid infinite recursion:
msym = syms.unnamedModule;
}
break;
case CLASS:
Name name;
try {
name = names.fromString(readModuleName(fo));
} catch (BadClassFile | IOException ex) {
// fillIn will report proper errors:
name = names.error;
}
msym = syms.enterModule(name);
msym.module_info.classfile = fo;
msym.completer = Completer.NULL_COMPLETER;
classFinder.fillIn(msym.module_info);
break;
default:
Assert.error();
msym = syms.unnamedModule;
break;
}
}
msym.classLocation = StandardLocation.CLASS_OUTPUT;
return msym;
} catch (IOException e) {
throw new Error(e); // FIXME
}
}
private void findModuleInfo(ModuleSymbol msym) {
try {
JavaFileObject src_fo =
(msym.sourceLocation == null)
? null
: fileManager.getJavaFileForInput(
msym.sourceLocation, names.module_info.toString(), Kind.SOURCE);
JavaFileObject class_fo =
(msym.classLocation == null)
? null
: fileManager.getJavaFileForInput(
msym.classLocation, names.module_info.toString(), Kind.CLASS);
JavaFileObject fo =
(src_fo == null)
? class_fo
: (class_fo == null) ? src_fo : classFinder.preferredFileObject(src_fo, class_fo);
if (fo == null) {
String moduleName =
msym.sourceLocation == null && msym.classLocation != null
? fileManager.inferModuleName(msym.classLocation)
: null;
if (moduleName != null) {
msym.module_info.classfile = null;
msym.flags_field |= Flags.AUTOMATIC_MODULE;
} else {
msym.kind = ERR;
}
} else {
msym.module_info.classfile = fo;
msym.module_info.completer =
new Symbol.Completer() {
@Override
public void complete(Symbol sym) throws CompletionFailure {
classFinder.fillIn(msym.module_info);
}
@Override
public String toString() {
return "ModuleInfoCompleter";
}
};
}
} catch (IOException e) {
msym.kind = ERR;
}
}