protected void printSymbol(String label, Symbol sym, Details details) {
if (sym == null) {
printNull(label);
} else {
switch (details) {
case SUMMARY:
printString(label, toString(sym));
break;
case FULL:
indent();
out.print(label);
out.println(
": "
+ info(
sym.getClass(),
String.format("0x%x--%s", sym.kind.ordinal(), Kinds.kindName(sym)),
sym.getKind())
+ " "
+ sym.name
+ " "
+ hashString(sym));
indent(+1);
if (showSrc) {
JCTree tree = (JCTree) trees.getTree(sym);
if (tree != null) printSource("src", tree);
}
printString(
"flags", String.format("0x%x--%s", sym.flags_field, Flags.toString(sym.flags_field)));
printObject("completer", sym.completer, Details.SUMMARY); // what if too long?
printSymbol("owner", sym.owner, Details.SUMMARY);
printType("type", sym.type, Details.SUMMARY);
printType("erasure", sym.erasure_field, Details.SUMMARY);
sym.accept(symVisitor, null);
printAnnotations("annotations", sym.getMetadata(), Details.SUMMARY);
indent(-1);
}
}
}
@Override
public Void visitTypeVar(TypeVar t, Void ignored) {
if (indexOf(t, WhereClauseKind.TYPEVAR) == -1) {
// access the bound type and skip error types
Type bound = t.bound;
while ((bound instanceof ErrorType)) bound = ((ErrorType) bound).getOriginalType();
// retrieve the bound list - if the type variable
// has not been attributed the bound is not set
List<Type> bounds =
(bound != null && bound.tsym != null) ? types.getBounds(t) : List.<Type>nil();
nameSimplifier.addUsage(t.tsym);
boolean boundErroneous =
bounds.head == null || bounds.head.tag == NONE || bounds.head.tag == ERROR;
if ((t.tsym.flags() & SYNTHETIC) == 0) {
// this is a true typevar
JCDiagnostic d =
diags.fragment(
"where.typevar" + (boundErroneous ? ".1" : ""),
t,
bounds,
Kinds.kindName(t.tsym.location()),
t.tsym.location());
whereClauses.get(WhereClauseKind.TYPEVAR).put(t, d);
symbolPreprocessor.visit(t.tsym.location(), null);
visit(bounds);
} else {
Assert.check(!boundErroneous);
// this is a fresh (synthetic) tvar
JCDiagnostic d = diags.fragment("where.fresh.typevar", t, bounds);
whereClauses.get(WhereClauseKind.TYPEVAR).put(t, d);
visit(bounds);
}
}
return null;
}
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));
}