static List<TypedDeclaration> collectUninitializedMembers(Tree.Body body) {
List<TypedDeclaration> uninitialized = new ArrayList<TypedDeclaration>();
if (body != null) {
List<Tree.Statement> statements = body.getStatements();
for (Tree.Statement st : statements) {
if (st instanceof Tree.AttributeDeclaration) {
Tree.AttributeDeclaration ad = (Tree.AttributeDeclaration) st;
if (ad.getSpecifierOrInitializerExpression() == null) {
Value v = ad.getDeclarationModel();
if (!v.isFormal()) {
uninitialized.add(v);
}
}
} else if (st instanceof Tree.MethodDeclaration) {
Tree.MethodDeclaration md = (Tree.MethodDeclaration) st;
if (md.getSpecifierExpression() == null) {
Function m = md.getDeclarationModel();
if (!m.isFormal()) {
uninitialized.add(m);
}
}
} else if (st instanceof Tree.SpecifierStatement) {
Tree.SpecifierStatement ss = (Tree.SpecifierStatement) st;
Tree.Term term = ss.getBaseMemberExpression();
if (term instanceof Tree.BaseMemberExpression) {
Tree.BaseMemberExpression bme = (Tree.BaseMemberExpression) term;
uninitialized.remove(bme.getDeclaration());
}
}
}
}
return uninitialized;
}
@Override
public void visit(Tree.AttributeDeclaration that) {
super.visit(that);
if (hasOuterRefs(that.getDeclarationModel(), scope, statements)) {
result = that;
}
}
@Override
public void visit(Tree.CompilationUnit that) {
for (Tree.Declaration st : that.getDeclarations()) {
if (st instanceof Tree.AttributeDeclaration) {
Tree.AttributeDeclaration ad = (Tree.AttributeDeclaration) st;
withinAttributeInitializer =
ad.getDeclarationModel() == declaration
&& !(ad.getSpecifierOrInitializerExpression()
instanceof Tree.LazySpecifierExpression);
} else {
withinAttributeInitializer = false;
}
st.visit(this);
withinAttributeInitializer = false;
}
}
@Override
public void visit(Tree.AttributeDeclaration that) {
ProducedType ort = requiredType;
requiredType = that.getType().getTypeModel();
super.visit(that);
requiredType = ort;
}
@Override
public void visit(Tree.AttributeDeclaration that) {
if (that.getDeclarationModel() == declaration) {
Tree.SpecifierOrInitializerExpression sie = that.getSpecifierOrInitializerExpression();
if (sie != null) {
super.visit(that);
specify();
} else {
super.visit(that);
if (declaration.isToplevel() && !isNativeHeader(declaration) && !isLate()) {
if (isVariable()) {
that.addError(
"toplevel variable value must be initialized: '" + declaration.getName() + "'");
} else {
that.addError("toplevel value must be specified: '" + declaration.getName() + "'");
}
} else if (declaration.isClassOrInterfaceMember()
&& !isNativeHeader(declaration)
&& !declaration.isFormal()
&& that.getDeclarationModel().getInitializerParameter() == null
&& !that.getDeclarationModel().isLate()
&& declarationSection) {
that.addError(
"forward declaration may not occur in declaration section: '"
+ declaration.getName()
+ "'",
1450);
}
}
} else {
super.visit(that);
}
}
public ExtractFunctionRefactoring(ITextEditor editor) {
super(editor);
init((ITextSelection) editor.getSelectionProvider().getSelection());
if (result != null) {
newName = result.getDeclarationModel().getName();
} else {
newName = guessName();
}
}
@Override
public void visit(Tree.Body that) {
if (hasParameter && that.getScope() == declaration.getContainer()) {
hasParameter = false;
}
for (Tree.Statement st : that.getStatements()) {
if (st instanceof Tree.AttributeDeclaration) {
Tree.AttributeDeclaration ad = (Tree.AttributeDeclaration) st;
withinAttributeInitializer =
ad.getDeclarationModel() == declaration
&& !(ad.getSpecifierOrInitializerExpression()
instanceof Tree.LazySpecifierExpression);
} else {
withinAttributeInitializer = false;
}
st.visit(this);
withinAttributeInitializer = false;
}
}
private void extractStatementsInFile(TextChange tfc) throws CoreException {
tfc.setEdit(new MultiTextEdit());
IDocument doc = tfc.getCurrentDocument(null);
Tree.Body body = (Tree.Body) node;
Integer start = statements.get(0).getStartIndex();
int length = statements.get(statements.size() - 1).getStopIndex() - start + 1;
FindContainerVisitor fsv = new FindContainerVisitor(body);
rootNode.visit(fsv);
Tree.Declaration decNode = fsv.getDeclaration();
/*if (decNode instanceof Tree.Declaration) {
Tree.AnnotationList anns = ((Tree.Declaration) decNode).getAnnotationList();
if (anns!=null && !anns.getAnnotations().isEmpty()) {
decNode = anns.getAnnotations().get(0);
}
}*/
Declaration dec = decNode.getDeclarationModel();
FindLocalReferencesVisitor flrv = new FindLocalReferencesVisitor(dec);
for (Statement s : statements) {
s.visit(flrv);
}
List<TypeDeclaration> localTypes = new ArrayList<TypeDeclaration>();
List<Tree.BaseMemberExpression> localRefs = new ArrayList<Tree.BaseMemberExpression>();
for (Tree.BaseMemberExpression bme : flrv.getLocalReferences()) {
if (result == null || !bme.getDeclaration().equals(result.getDeclarationModel())) {
FindOuterReferencesVisitor v = new FindOuterReferencesVisitor(bme.getDeclaration());
for (Statement s : body.getStatements()) {
if (!statements.contains(s)) {
s.visit(v);
}
}
if (v.refs > 0) {
addLocalType(dec, bme.getTypeModel(), localTypes, new ArrayList<ProducedType>());
localRefs.add(bme);
}
}
}
String params = "";
String args = "";
Set<Declaration> done = new HashSet<Declaration>();
boolean nonempty = false;
for (Tree.BaseMemberExpression bme : localRefs) {
if (done.add(bme.getDeclaration())) {
params +=
bme.getTypeModel().getProducedTypeName() + " " + bme.getIdentifier().getText() + ", ";
args += bme.getIdentifier().getText() + ", ";
nonempty = true;
}
}
if (nonempty) {
params = params.substring(0, params.length() - 2);
args = args.substring(0, args.length() - 2);
}
String indent = "\n" + getIndent(decNode, doc);
String extraIndent = indent + getDefaultIndent();
String typeParams = "";
String constraints = "";
if (!localTypes.isEmpty()) {
for (TypeDeclaration t : localTypes) {
typeParams += t.getName() + ", ";
if (!t.getSatisfiedTypes().isEmpty()) {
constraints += extraIndent + getDefaultIndent() + "given " + t.getName() + " satisfies ";
for (ProducedType pt : t.getSatisfiedTypes()) {
constraints += pt.getProducedTypeName() + "&";
}
constraints = constraints.substring(0, constraints.length() - 1);
}
}
typeParams = "<" + typeParams.substring(0, typeParams.length() - 2) + ">";
}
String content =
result == null ? "void" : result.getDeclarationModel().getType().getProducedTypeName();
content += " " + newName + typeParams + "(" + params + ")" + constraints + " {";
for (Statement s : statements) {
content += extraIndent + toString(s);
}
if (result != null) {
content += extraIndent + "return " + result.getDeclarationModel().getName() + ";";
}
content += indent + "}" + indent + indent;
String invocation = newName + "(" + args + ");";
if (result != null) {
String modifs;
if (result.getDeclarationModel().isShared()) {
modifs = "shared " + result.getDeclarationModel().getType().getProducedTypeName() + " ";
} else {
modifs = "value ";
}
invocation = modifs + result.getDeclarationModel().getName() + "=" + invocation;
}
tfc.addEdit(new InsertEdit(decNode.getStartIndex(), content));
tfc.addEdit(new ReplaceEdit(start, length, invocation));
}
public static String getInitialValueDescription(
final Declaration dec, CeylonParseController cpc) {
if (cpc != null) {
Node refnode = getReferencedNode(dec);
Tree.SpecifierOrInitializerExpression sie = null;
String arrow = null;
if (refnode instanceof Tree.AttributeDeclaration) {
Tree.AttributeDeclaration ad = (Tree.AttributeDeclaration) refnode;
sie = ad.getSpecifierOrInitializerExpression();
arrow = " = ";
} else if (refnode instanceof Tree.MethodDeclaration) {
Tree.MethodDeclaration md = (Tree.MethodDeclaration) refnode;
sie = md.getSpecifierExpression();
arrow = " => ";
}
Tree.CompilationUnit lcu = cpc.getLastCompilationUnit();
if (sie == null) {
class FindInitializerVisitor extends Visitor {
Tree.SpecifierOrInitializerExpression result;
@Override
public void visit(Tree.InitializerParameter that) {
super.visit(that);
Declaration d = that.getParameterModel().getModel();
if (d != null && d.equals(dec)) {
result = that.getSpecifierExpression();
}
}
}
FindInitializerVisitor fiv = new FindInitializerVisitor();
fiv.visit(lcu);
sie = fiv.result;
}
if (sie != null) {
Tree.Expression e = sie.getExpression();
if (e != null) {
Tree.Term term = e.getTerm();
if (term instanceof Tree.Literal) {
String text = term.getToken().getText();
if (text.length() < 20) {
return arrow + text;
}
} else if (term instanceof Tree.BaseMemberOrTypeExpression) {
Tree.BaseMemberOrTypeExpression bme = (Tree.BaseMemberOrTypeExpression) term;
Tree.Identifier id = bme.getIdentifier();
if (id != null && bme.getTypeArguments() == null) {
return arrow + id.getText();
}
} else if (term != null) {
Unit unit = lcu.getUnit();
if (term.getUnit().equals(unit)) {
String impl = Nodes.text(term, cpc.getTokens());
if (impl.length() < 10) {
return arrow + impl;
}
}
}
// don't have the token stream :-/
// TODO: figure out where to get it from!
return arrow + "...";
}
}
}
return "";
}
private void writeConstantValue(Value v) throws IOException {
Node node = tool.getDeclarationNode(v);
PhasedUnit pu = tool.getDeclarationUnit(v);
if (pu == null || !(node instanceof Tree.AttributeDeclaration)) {
return;
}
Tree.AttributeDeclaration attribute = (Tree.AttributeDeclaration) node;
Tree.SpecifierOrInitializerExpression specifierExpression =
attribute.getSpecifierOrInitializerExpression();
if (specifierExpression == null || specifierExpression.getExpression() == null) {
return;
}
Token startToken = specifierExpression.getExpression().getToken();
int startLine = startToken.getLine();
int startLinePosition = startToken.getCharPositionInLine();
Token endToken = attribute.getEndToken();
int endLine = endToken.getLine();
int endLinePosition = endToken.getCharPositionInLine();
StringBuilder valueBuilder = new StringBuilder(" ");
BufferedReader sourceCodeReader =
new BufferedReader(new InputStreamReader(pu.getUnitFile().getInputStream()));
try {
int lineIndex = 1;
String line = sourceCodeReader.readLine();
while (line != null) {
if (lineIndex == startLine && lineIndex == endLine) {
valueBuilder.append(line.substring(startLinePosition, endLinePosition));
break;
} else if (lineIndex == startLine) {
valueBuilder.append(line.substring(startLinePosition, line.length()));
} else if (lineIndex > startLine && lineIndex < endLine) {
valueBuilder.append("\n");
valueBuilder.append(line);
} else if (lineIndex == endLine) {
valueBuilder.append("\n");
valueBuilder.append(line.substring(0, endLinePosition));
break;
}
line = sourceCodeReader.readLine();
lineIndex++;
}
} finally {
sourceCodeReader.close();
}
String value = valueBuilder.toString();
int newLineIndex = value.indexOf("\n");
String valueFirstLine = newLineIndex != -1 ? value.substring(0, newLineIndex) : value;
around("span class='specifier-operator'", " = ");
around("span class='specifier-start'", valueFirstLine);
if (newLineIndex != -1) {
around(
"a class='specifier-ellipsis' href='#' title='Click for expand the rest of value.'",
"...");
open("div class='specifier-rest'");
write(value.substring(newLineIndex + 1));
around("span class='specifier-semicolon'", ";");
close("div");
} else {
around("span class='specifier-semicolon'", ";");
}
}