@Override
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() || pkginfoOpt == PkgInfo.ALWAYS) {
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> topEnv = 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, topEnv);
} 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, topEnv);
}
}
}
for (Symbol q = tree.packge; q != null && q.kind == PCK; q = q.owner) q.flags_field |= EXISTS;
Name name = names.package_info;
ClassSymbol c = reader.enterClass(name, tree.packge);
c.flatname = names.fromString(tree.packge + "." + name);
c.sourcefile = tree.sourcefile;
c.completer = null;
c.members_field = new Scope(c);
tree.packge.package_info = c;
}
classEnter(tree.defs, topEnv);
if (addEnv) {
todo.append(topEnv);
}
log.useSource(prev);
result = null;
}
/**
* Create a fresh environment for toplevels.
*
* @param tree The toplevel tree.
*/
Env<AttrContext> topLevelEnv(JCCompilationUnit tree) {
Env<AttrContext> localEnv = new Env<AttrContext>(tree, new AttrContext());
localEnv.toplevel = tree;
localEnv.enclClass = predefClassDef;
tree.namedImportScope = new ImportScope(tree.packge);
tree.starImportScope = new StarImportScope(tree.packge);
localEnv.info.scope = tree.namedImportScope;
localEnv.info.lint = lint;
return localEnv;
}