public static Set<MethodSymbol> findSuperMethods(MethodSymbol methodSymbol, Types types) {
Set<MethodSymbol> supers = new HashSet<>();
if (methodSymbol.isStatic()) {
return supers;
}
TypeSymbol owner = (TypeSymbol) methodSymbol.owner;
// Iterates over an ordered list of all super classes and interfaces.
for (Type sup : types.closure(owner.type)) {
if (sup == owner.type) {
continue; // Skip the owner of the method
}
Scope scope = sup.tsym.members();
for (Symbol sym : scope.getSymbolsByName(methodSymbol.name)) {
if (sym != null
&& !sym.isStatic()
&& ((sym.flags() & Flags.SYNTHETIC) == 0)
&& sym.name.contentEquals(methodSymbol.name)
&& methodSymbol.overrides(sym, owner, types, true)) {
supers.add((MethodSymbol) sym);
}
}
}
return supers;
}
/** Double size of hash table. */
private void dble() {
assert shared == 0;
Entry[] oldtable = table;
Entry[] newtable = new Entry[oldtable.length * 2];
for (Scope s = this; s != null; s = s.next) {
if (s.table == oldtable) {
assert s == this || s.shared != 0;
s.table = newtable;
s.hashMask = newtable.length - 1;
}
}
for (int i = 0; i < newtable.length; i++) newtable[i] = sentinel;
for (int i = 0; i < oldtable.length; i++) copy(oldtable[i]);
}
public void printScope(String label, Scope scope, Details details) {
if (scope == null) {
printNull(label);
} else {
switch (details) {
case SUMMARY:
{
indent();
out.print(label);
out.print(": [");
String sep = "";
for (Symbol sym : scope.getSymbols()) {
out.print(sep);
out.print(sym.name);
sep = ",";
}
out.println("]");
break;
}
case FULL:
{
indent();
out.println(label);
indent(+1);
printFullScopeImpl(scope);
indent(-1);
break;
}
}
}
}
/** @return all values of the given enum type, in declaration order. */
public static LinkedHashSet<String> enumValues(TypeSymbol enumType) {
if (enumType.getKind() != ElementKind.ENUM) {
throw new IllegalStateException();
}
Scope scope = enumType.members();
Deque<String> values = new ArrayDeque<>();
for (Symbol sym : scope.getSymbols()) {
if (sym instanceof VarSymbol) {
VarSymbol var = (VarSymbol) sym;
if ((var.flags() & Flags.ENUM) != 0) {
/**
* Javac gives us the members backwards, apparently. It's worth making an effort to
* preserve declaration order because it's useful for diagnostics (e.g. in {@link
* MissingCasesInEnumSwitch}).
*/
values.push(sym.name.toString());
}
}
}
return new LinkedHashSet<>(values);
}
void printFullScopeImpl(Scope scope) {
indent();
out.println(scope.getClass().getName());
printSymbol("owner", scope.owner, Details.SUMMARY);
if (SCOPE_IMPL_CLASS.equals(scope.getClass().getName())) {
printScope("next", (Scope) getField(scope, scope.getClass(), "next"), Details.SUMMARY);
printObject("shared", getField(scope, scope.getClass(), "shared"), Details.SUMMARY);
Object[] table = (Object[]) getField(scope, scope.getClass(), "table");
for (int i = 0; i < table.length; i++) {
if (i > 0) out.print(", ");
else indent();
out.print(i + ":" + entryToString(table[i], table, false));
}
out.println();
} else if (FILTER_SCOPE_CLASS.equals(scope.getClass().getName())) {
printScope("origin", (Scope) getField(scope, scope.getClass(), "origin"), Details.FULL);
} else if (scope instanceof CompoundScope) {
printList("delegates", (List<?>) getField(scope, CompoundScope.class, "subScopes"));
} else {
for (Symbol sym : scope.getSymbols()) {
printSymbol(sym.name.toString(), sym, Details.SUMMARY);
}
}
}
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;
}
public String toString() {
return "AttrContext[" + scope.toString() + "]";
}
public Iterable<Symbol> getLocalElements() {
if (scope == null) return List.nil();
return scope.getElements();
}
public AttrContext dupUnshared() { // DRC - added this method
return dup(scope.dupUnshared());
}
public Entry lookup(Name name) {
return delegatee.lookup(name);
}