private static List<Tree.ImportMemberOrType> getUsedImportElements(
List<Tree.Import> imports, List<Declaration> unused, boolean hasWildcard) {
List<Tree.ImportMemberOrType> list = new ArrayList<Tree.ImportMemberOrType>();
for (Tree.Import ti : imports) {
for (Tree.ImportMemberOrType imt : ti.getImportMemberOrTypeList().getImportMemberOrTypes()) {
Declaration dm = imt.getDeclarationModel();
if (dm != null && !hasRealErrors(imt.getIdentifier()) && !hasRealErrors(imt)) {
if (unused.contains(dm)) {
if (imt.getImportMemberOrTypeList() != null) {
for (Tree.ImportMemberOrType nimt :
imt.getImportMemberOrTypeList().getImportMemberOrTypes()) {
Declaration ndm = nimt.getDeclarationModel();
if (ndm != null && !hasRealErrors(nimt.getIdentifier()) && !hasRealErrors(nimt)) {
if (!unused.contains(ndm)) {
list.add(imt);
break;
}
}
}
}
} else {
if (!hasWildcard || imt.getAlias() != null || imt.getImportMemberOrTypeList() != null) {
list.add(imt);
}
}
}
}
}
return list;
}
private void addImport(Tree.ImportMemberOrType member, ImportList il, Import i) {
String alias = i.getAlias();
if (alias != null) {
Map<String, String> mods = unit.getModifiers();
if (mods.containsKey(alias) && mods.get(alias).equals(alias)) {
// spec says you can't hide a language modifier
// unless the modifier itself has an alias
// (this is perhaps a little heavy-handed)
member.addError("import hides a language modifier: '" + alias + "'");
} else {
Import o = unit.getImport(alias);
if (o == null) {
unit.getImports().add(i);
il.getImports().add(i);
} else if (o.isWildcardImport()) {
unit.getImports().remove(o);
il.getImports().remove(o);
unit.getImports().add(i);
il.getImports().add(i);
} else {
member.addError("duplicate import alias: '" + alias + "'");
}
}
}
}
public static boolean removeImport(
String originalPackage,
final Declaration dec,
Tree.CompilationUnit cu,
TextChange tc,
Set<String> packages) {
boolean foundOriginal = false;
Tree.ImportList il = cu.getImportList();
for (Tree.Import imp : il.getImports()) {
Referenceable model = imp.getImportPath().getModel();
if (model != null) {
if (model.getNameAsString().equals(originalPackage)) {
Tree.ImportMemberOrTypeList imtl = imp.getImportMemberOrTypeList();
if (imtl != null) {
List<ImportMemberOrType> imts = imtl.getImportMemberOrTypes();
for (int j = 0; j < imts.size(); j++) {
Tree.ImportMemberOrType imt = imts.get(j);
Declaration d = imt.getDeclarationModel();
if (d != null && d.equals(dec)) {
int offset;
int length;
if (j > 0) {
offset = getNodeEndOffset(imts.get(j - 1));
length = getNodeEndOffset(imt) - offset;
} else if (j < imts.size() - 1) {
offset = getNodeStartOffset(imt);
length = getNodeStartOffset(imts.get(j + 1)) - offset;
} else {
if (packages.contains(originalPackage)) {
// we're adding to this import statement,
// so don't delete the whole import
offset = getNodeStartOffset(imt);
length = getNodeLength(imt);
} else {
offset = getNodeStartOffset(imp);
length = getNodeLength(imp);
}
}
tc.addEdit(new DeleteEdit(offset, length));
foundOriginal = true;
break;
// TODO: return the alias!
}
}
}
break;
}
}
}
return foundOriginal;
}
private static void appendImportElements(
String packageName,
List<Tree.ImportMemberOrType> elements,
List<Declaration> unused,
List<Declaration> proposed,
boolean hasWildcard,
StringBuilder builder) {
for (Tree.ImportMemberOrType i : elements) {
if (i.getDeclarationModel() != null
&& i.getIdentifier().getErrors().isEmpty()
&& i.getErrors().isEmpty()) {
if (!i.getImportModel().getAlias().equals(i.getDeclarationModel().getName())) {
builder.append(i.getImportModel().getAlias()).append("=");
}
builder.append(i.getDeclarationModel().getName());
appendNestedImportElements(i, unused, builder);
builder.append(", ");
}
}
for (Declaration d : proposed) {
if (d.getUnit().getPackage().getNameAsString().equals(packageName)) {
builder.append(d.getName()).append(", ");
}
}
if (hasWildcard) {
builder.append("...");
} else {
builder.setLength(builder.length() - 2);
}
}
private String importMember(
Tree.ImportMemberOrType member, Package importedPackage, ImportList il) {
Tree.Identifier id = member.getIdentifier();
if (id == null) {
return null;
}
Import i = new Import();
member.setImportModel(i);
Tree.Alias alias = member.getAlias();
String name = name(id);
if (alias == null) {
i.setAlias(name);
} else {
i.setAlias(name(alias.getIdentifier()));
}
if (isNonimportable(importedPackage, name)) {
id.addError("root type may not be imported");
return name;
}
Declaration d = importedPackage.getMember(name, null, false);
if (d == null) {
String correction = correct(importedPackage, unit, name);
String message = correction == null ? "" : " (did you mean '" + correction + "'?)";
id.addError("imported declaration not found: '" + name + "'" + message, 100);
unit.getUnresolvedReferences().add(id);
} else {
if (!declaredInPackage(d, unit)) {
if (!d.isShared()) {
id.addError("imported declaration is not shared: '" + name + "'", 400);
} else if (d.isPackageVisibility()) {
id.addError("imported package private declaration is not visible: '" + name + "'");
} else if (d.isProtectedVisibility()) {
id.addError("imported protected declaration is not visible: '" + name + "'");
}
}
i.setDeclaration(d);
member.setDeclarationModel(d);
if (il.hasImport(d)) {
id.addError("already imported: '" + name + "'");
} else if (!checkForHiddenToplevel(id, i, alias)) {
addImport(member, il, i);
}
checkAliasCase(alias, d);
}
if (d != null) {
importMembers(member, d);
}
return name;
}
private void importMembers(Tree.ImportMemberOrType member, Declaration d) {
Tree.ImportMemberOrTypeList imtl = member.getImportMemberOrTypeList();
if (imtl != null) {
if (d instanceof Value) {
Value v = (Value) d;
TypeDeclaration td = v.getTypeDeclaration();
if (td.isObjectClass()) {
d = td;
}
}
if (d instanceof TypeDeclaration) {
Set<String> names = new HashSet<String>();
ImportList til = imtl.getImportList();
TypeDeclaration td = (TypeDeclaration) d;
til.setImportedScope(td);
List<Tree.ImportMemberOrType> imts = imtl.getImportMemberOrTypes();
for (Tree.ImportMemberOrType imt : imts) {
names.add(importMember(imt, td, til));
}
if (imtl.getImportWildcard() != null) {
importAllMembers(td, names, til);
} else if (imts.isEmpty()) {
imtl.addError("empty import list", 1020);
}
} else {
imtl.addError("member alias list must follow a type");
}
}
}
private void addMemberImport(Tree.ImportMemberOrType member, ImportList il, Import i) {
String alias = i.getAlias();
if (alias != null) {
if (il.getImport(alias) == null) {
unit.getImports().add(i);
il.getImports().add(i);
} else {
member.addError("duplicate member import alias: '" + alias + "'");
}
}
}
static void addRemoveAliasProposal(
Tree.ImportMemberOrType imt,
Collection<ICompletionProposal> proposals,
IFile file,
CeylonEditor editor) {
if (imt != null) {
Declaration dec = imt.getDeclarationModel();
Tree.CompilationUnit upToDateAndTypechecked =
editor.getParseController().getTypecheckedRootNode();
if (dec != null && imt.getAlias() != null && upToDateAndTypechecked != null) {
TextFileChange change = new TextFileChange("Remove Alias", file);
change.setEdit(new MultiTextEdit());
Tree.Identifier aid = imt.getAlias().getIdentifier();
change.addEdit(
new DeleteEdit(
aid.getStartIndex(), imt.getIdentifier().getStartIndex() - aid.getStartIndex()));
upToDateAndTypechecked.visit(new AliasRemovalVisitor(dec, change, aid));
proposals.add(new RemoveAliasProposal(file, dec, change));
}
}
}
private String importMember(Tree.ImportMemberOrType member, TypeDeclaration td, ImportList il) {
Tree.Identifier id = member.getIdentifier();
if (id == null) {
return null;
}
Import i = new Import();
member.setImportModel(i);
Tree.Alias alias = member.getAlias();
String name = name(id);
if (alias == null) {
i.setAlias(name);
} else {
i.setAlias(name(alias.getIdentifier()));
}
Declaration m = td.getMember(name, null, false);
if (m == null) {
String correction = correct(td, null, unit, name);
String message = correction == null ? "" : " (did you mean '" + correction + "'?)";
id.addError(
"imported declaration not found: '" + name + "' of '" + td.getName() + "'" + message,
100);
unit.getUnresolvedReferences().add(id);
} else {
List<Declaration> members = m.getContainer().getMembers();
for (Declaration d : members) {
String dn = d.getName();
if (dn != null && dn.equals(name) && !d.sameKind(m) && !d.isAnonymous()) {
// crazy interop cases like isOpen() + open()
id.addError("ambiguous member declaration: '" + name + "' of '" + td.getName() + "'");
return null;
}
}
if (!m.isShared()) {
id.addError(
"imported declaration is not shared: '" + name + "' of '" + td.getName() + "'", 400);
} else if (!declaredInPackage(m, unit)) {
if (m.isPackageVisibility()) {
id.addError(
"imported package private declaration is not visible: '"
+ name
+ "' of '"
+ td.getName()
+ "'");
} else if (m.isProtectedVisibility()) {
id.addError(
"imported protected declaration is not visible: '"
+ name
+ "' of '"
+ td.getName()
+ "'");
}
}
i.setTypeDeclaration(td);
if (!m.isStaticallyImportable()
&& !isToplevelClassConstructor(td, m)
&& !isToplevelAnonymousClass(m.getContainer())) {
if (alias == null) {
member.addError("does not specify an alias");
}
}
i.setDeclaration(m);
member.setDeclarationModel(m);
if (il.hasImport(m)) {
id.addError("already imported: '" + name + "' of '" + td.getName() + "'");
} else {
if (m.isStaticallyImportable()
|| isToplevelClassConstructor(td, m)
|| isToplevelAnonymousClass(m.getContainer())) {
if (!checkForHiddenToplevel(id, i, alias)) {
addImport(member, il, i);
}
} else {
addMemberImport(member, il, i);
}
}
checkAliasCase(alias, m);
}
if (m != null) {
importMembers(member, m);
}
// imtl.addError("member aliases may not have member aliases");
return name;
}
private static void appendNestedImportElements(
Tree.ImportMemberOrType imt, List<Declaration> unused, StringBuilder builder) {
if (imt.getImportMemberOrTypeList() != null) {
builder.append(" { ");
boolean found = false;
for (Tree.ImportMemberOrType nimt :
imt.getImportMemberOrTypeList().getImportMemberOrTypes()) {
if (nimt.getDeclarationModel() != null
&& nimt.getIdentifier().getErrors().isEmpty()
&& nimt.getErrors().isEmpty()) {
if (!unused.contains(nimt.getDeclarationModel())) {
found = true;
if (!nimt.getImportModel().getAlias().equals(nimt.getDeclarationModel().getName())) {
builder.append(nimt.getImportModel().getAlias()).append("=");
}
builder.append(nimt.getDeclarationModel().getName()).append(", ");
}
}
}
if (found) builder.setLength(builder.length() - 2);
builder.append(" }");
if (!found) builder.setLength(builder.length() - 5);
}
}
