public override ICompletionDataList HandleCodeCompletion(CodeCompletionContext completionContext, char completionChar, ref int triggerWordLength)
{
// IDisposable timer = null;
try {
if (dom == null /*|| Document.CompilationUnit == null*/)
return null;
if (completionChar != '#' && stateTracker.Engine.IsInsidePreprocessorDirective)
return null;
// timer = Counters.ResolveTime.BeginTiming ();
DomLocation location = new DomLocation (completionContext.TriggerLine, completionContext.TriggerLineOffset - 1);
stateTracker.UpdateEngine ();
ExpressionResult result;
int cursor, newCursorOffset = 0;
switch (completionChar) {
case ':':
case '.':
if (stateTracker.Engine.IsInsideDocLineComment || stateTracker.Engine.IsInsideOrdinaryCommentOrString)
return null;
result = FindExpression (dom, completionContext);
if (result == null || result.Expression == null)
return null;
int idx = result.Expression.LastIndexOf ('.');
if (idx > 0)
result.Expression = result.Expression.Substring (0, idx);
NRefactoryResolver resolver = new NRefactoryResolver (dom, Document.CompilationUnit, ICSharpCode.NRefactory.SupportedLanguage.CSharp, Editor, Document.FileName);
ResolveResult resolveResult = resolver.Resolve (result, location);
if (resolver.ResolvedExpression is ICSharpCode.NRefactory.Ast.PrimitiveExpression) {
ICSharpCode.NRefactory.Ast.PrimitiveExpression pex = (ICSharpCode.NRefactory.Ast.PrimitiveExpression)resolver.ResolvedExpression;
if (!tryToForceCompletion && !(pex.Value is string || pex.Value is char || pex.Value is bool))
return null;
}
return CreateCompletionData (location, resolveResult, result, resolver);
case '#':
if (stateTracker.Engine.IsInsidePreprocessorDirective)
return GetDirectiveCompletionData ();
return null;
case '>':
cursor = Editor.SelectionStartPosition;
if (stateTracker.Engine.IsInsideDocLineComment) {
string lineText = Editor.GetLineText (completionContext.TriggerLine);
int startIndex = Math.Min (completionContext.TriggerLineOffset - 1, lineText.Length - 1);
while (startIndex >= 0 && lineText[startIndex] != '<') {
--startIndex;
if (lineText[startIndex] == '/') { // already closed.
startIndex = -1;
break;
}
}
if (startIndex >= 0) {
int endIndex = startIndex;
while (endIndex <= completionContext.TriggerLineOffset && endIndex < lineText.Length && !Char.IsWhiteSpace (lineText[endIndex])) {
endIndex++;
}
string tag = endIndex - startIndex - 1 > 0 ? lineText.Substring (startIndex + 1, endIndex - startIndex - 2) : null;
if (!String.IsNullOrEmpty (tag) && commentTags.IndexOf (tag) >= 0) {
Editor.InsertText (cursor, "</" + tag + ">");
Editor.CursorPosition = cursor;
return null;
}
}
}
return null;
/* Disabled because it gives problems when declaring arrays - for example string [] should not pop up code completion.
case '[':
if (stateTracker.Engine.IsInsideDocLineComment || stateTracker.Engine.IsInsideOrdinaryCommentOrString)
return null;
result = FindExpression (dom, completionContext);
if (result.ExpressionContext == ExpressionContext.Attribute)
return CreateCtrlSpaceCompletionData (completionContext, result);
return null;*/
case '<':
if (stateTracker.Engine.IsInsideDocLineComment)
return GetXmlDocumentationCompletionData ();
return null;
case '(':
if (stateTracker.Engine.IsInsideDocLineComment || stateTracker.Engine.IsInsideOrdinaryCommentOrString)
return null;
result = FindExpression (dom, completionContext, -1);
if (result == null || result.Expression == null)
return null;
resolver = new NRefactoryResolver (dom, Document.CompilationUnit, ICSharpCode.NRefactory.SupportedLanguage.CSharp, Editor, Document.FileName);
resolveResult = resolver.Resolve (result, new DomLocation (completionContext.TriggerLine, completionContext.TriggerLineOffset - 2));
if (resolveResult != null && resolver.ResolvedExpression is ICSharpCode.NRefactory.Ast.TypeOfExpression) {
CompletionDataList completionList = new ProjectDomCompletionDataList ();
CompletionDataCollector col = new CompletionDataCollector (completionList, Document.CompilationUnit, location);
AddPrimitiveTypes (col);
foreach (object o in dom.GetNamespaceContents (GetUsedNamespaces (), true, true)) {
col.Add (o);
}
return completionList;
}
return null;
case '/':
cursor = Editor.SelectionStartPosition;
if (cursor < 2)
break;
if (stateTracker.Engine.IsInsideDocLineComment) {
string lineText = Editor.GetLineText (completionContext.TriggerLine);
bool startsDocComment = true;
int slashes = 0;
for (int i = 0; i < completionContext.TriggerLineOffset && i < lineText.Length; i++) {
if (lineText[i] == '/') {
slashes++;
continue;
}
if (!Char.IsWhiteSpace (lineText[i])) {
startsDocComment = false;
break;
}
}
// check if lines above already start a doc comment
for (int i = completionContext.TriggerLine - 1; i >= 0; i--) {
string text = Editor.GetLineText (i).Trim ();
if (text.Length == 0)
continue;
if (text.StartsWith ("///")) {
startsDocComment = false;
break;
}
break;
}
// check if following lines start a doc comment
for (int i = completionContext.TriggerLine + 1; i < Editor.LineCount; i++) {
string text = Editor.GetLineText (i);
if (text == null)
break;
text = text.Trim ();
if (text.Length == 0)
continue;
if (text.StartsWith ("///")) {
startsDocComment = false;
break;
}
break;
}
if (!startsDocComment || slashes != 3)
break;
StringBuilder generatedComment = new StringBuilder ();
bool generateStandardComment = true;
ParsedDocument currentParsedDocument = Document.UpdateParseDocument ();
IType insideClass = NRefactoryResolver.GetTypeAtCursor (currentParsedDocument.CompilationUnit, Document.FileName, location);
if (insideClass != null) {
string indent = GetLineWhiteSpace (lineText);
if (insideClass.ClassType == ClassType.Delegate) {
AppendSummary (generatedComment, indent, out newCursorOffset);
IMethod m = null;
foreach (IMethod method in insideClass.Methods)
m = method;
AppendMethodComment (generatedComment, indent, m);
generateStandardComment = false;
} else {
if (!IsInsideClassBody (insideClass, completionContext.TriggerLine, completionContext.TriggerLineOffset))
break;
string body = GenerateBody (insideClass, completionContext.TriggerLine, indent, out newCursorOffset);
if (!String.IsNullOrEmpty (body)) {
generatedComment.Append (body);
generateStandardComment = false;
}
}
}
if (generateStandardComment) {
string indent = GetLineWhiteSpace (Editor.GetLineText (completionContext.TriggerLine));
AppendSummary (generatedComment, indent, out newCursorOffset);
}
Editor.EndAtomicUndo ();
Editor.BeginAtomicUndo ();
Editor.InsertText (cursor, generatedComment.ToString ());
Editor.CursorPosition = cursor + newCursorOffset;
return null;
}
return null;
case ' ':
if (stateTracker.Engine.IsInsideDocLineComment || stateTracker.Engine.IsInsideOrdinaryCommentOrString)
return null;
result = FindExpression (dom, completionContext);
if (result == null)
return null;
int tokenIndex = completionContext.TriggerOffset;
string token = GetPreviousToken (ref tokenIndex, false);
if (token == "=") {
int j = tokenIndex;
string prevToken = GetPreviousToken (ref j, false);
if (prevToken == "=" || prevToken == "+" || prevToken == "-") {
token = prevToken + token;
tokenIndex = j;
}
}
switch (token) {
case "=":
case "==":
result = FindExpression (dom, completionContext, tokenIndex - completionContext.TriggerOffset - 1);
resolver = new NRefactoryResolver (dom, Document.CompilationUnit, ICSharpCode.NRefactory.SupportedLanguage.CSharp, Editor, Document.FileName);
resolveResult = resolver.Resolve (result, location);
if (resolveResult != null) {
IType resolvedType = dom.GetType (resolveResult.ResolvedType);
if (resolvedType != null && resolvedType.ClassType == ClassType.Enum) {
CompletionDataList completionList = new ProjectDomCompletionDataList ();
CompletionDataCollector cdc = new CompletionDataCollector (completionList, Document.CompilationUnit, location);
IReturnType returnType = new DomReturnType (resolvedType);
bool added = false;
foreach (IUsing u in Document.CompilationUnit.Usings) {
foreach (KeyValuePair<string, IReturnType> alias in u.Aliases) {
if (alias.Value.ToInvariantString () == returnType.ToInvariantString ()) {
cdc.Add (alias.Key, "md-class");
added = true;
}
}
}
if (!added)
cdc.Add (returnType);
foreach (object o in CreateCtrlSpaceCompletionData (completionContext, result)) {
MemberCompletionData memberData = o as MemberCompletionData;
if (memberData == null || memberData.Member == null)
continue;
if (memberData.Member is IMember) {
returnType = ((IMember)memberData.Member).ReturnType;
} else if (memberData.Member is IParameter) {
returnType = ((IParameter)memberData.Member).ReturnType;
} else {
returnType = ((LocalVariable)memberData.Member).ReturnType;
}
if (returnType != null && returnType.FullName == resolvedType.FullName)
completionList.Add (memberData);
}
completionList.AutoCompleteEmptyMatch = false;
return completionList;
}
}
return null;
case "+=":
case "-=":
if (stateTracker.Engine.IsInsideDocLineComment || stateTracker.Engine.IsInsideOrdinaryCommentOrString)
return null;
result = FindExpression (dom, completionContext, tokenIndex - completionContext.TriggerOffset);
resolver = new NRefactoryResolver (dom, Document.CompilationUnit, ICSharpCode.NRefactory.SupportedLanguage.CSharp, Editor, Document.FileName);
resolveResult = resolver.Resolve (result, location);
if (resolveResult is MemberResolveResult) {
MemberResolveResult mrr = resolveResult as MemberResolveResult;
IEvent evt = mrr.ResolvedMember as IEvent;
if (evt == null)
return null;
IType delegateType = dom.GetType (evt.ReturnType);
if (delegateType == null || delegateType.ClassType != ClassType.Delegate)
return null;
CompletionDataList completionList = new ProjectDomCompletionDataList ();
CompletionDataCollector cdc = new CompletionDataCollector (completionList, Document.CompilationUnit, location);
IType declaringType = resolver.CallingType;
if (Document.LastErrorFreeParsedDocument != null) {
declaringType = Document.LastErrorFreeParsedDocument.CompilationUnit.GetType (declaringType.FullName, declaringType.TypeParameters.Count);
}
IType typeFromDatabase = dom.GetType (declaringType.FullName, new DomReturnType (declaringType).GenericArguments) ?? declaringType;
bool includeProtected = DomType.IncludeProtected (dom, typeFromDatabase, resolver.CallingType);
foreach (IType type in dom.GetInheritanceTree (typeFromDatabase)) {
foreach (IMethod method in type.Methods) {
if (method.IsAccessibleFrom (dom, resolver.CallingType, resolver.CallingMember, includeProtected) && MatchDelegate (delegateType, method)) {
ICompletionData data = cdc.Add (method);
data.SetText (data.CompletionText + ";");
}
}
}
if (token == "+=") {
IMethod delegateMethod = delegateType.Methods.First ();
completionList.Add ("delegate", "md-keyword", GettextCatalog.GetString ("Creates anonymous delegate."), "delegate {\n" + stateTracker.Engine.ThisLineIndent + TextEditorProperties.IndentString + "|\n" + stateTracker.Engine.ThisLineIndent +"};");
StringBuilder sb = new StringBuilder ("(");
for (int k = 0; k < delegateMethod.Parameters.Count; k++) {
if (k > 0)
sb.Append (", ");
sb.Append (CompletionDataCollector.ambience.GetString (Document.CompilationUnit.ShortenTypeName (delegateMethod.Parameters[k].ReturnType, Document.TextEditor.CursorLine, Document.TextEditor.CursorColumn), OutputFlags.ClassBrowserEntries | OutputFlags.UseFullName));
sb.Append (" ");
sb.Append (delegateMethod.Parameters[k].Name);
}
sb.Append (")");
completionList.Add ("delegate" + sb, "md-keyword", GettextCatalog.GetString ("Creates anonymous delegate."), "delegate" + sb + " {\n" + stateTracker.Engine.ThisLineIndent + TextEditorProperties.IndentString + "|\n" + stateTracker.Engine.ThisLineIndent +"};");
string varName = GetPreviousToken (ref tokenIndex, false);
varName = GetPreviousToken (ref tokenIndex, false);
if (varName != ".") {
varName = null;
} else {
List<string> names = new List<string> ();
while (varName == ".") {
varName = GetPreviousToken (ref tokenIndex, false);
if (varName == "this") {
names.Add ("handle");
} else if (varName != null) {
string trimmedName = varName.Trim ();
if (trimmedName.Length == 0)
break;
names.Insert (0, trimmedName);
}
varName = GetPreviousToken (ref tokenIndex, false);
}
varName = String.Join ("", names.ToArray ());
}
completionList.Add (new EventCreationCompletionData (((Mono.TextEditor.ITextEditorDataProvider)Document.GetContent<Mono.TextEditor.ITextEditorDataProvider> ()).GetTextEditorData (), varName, delegateType, evt, sb.ToString (), resolver.CallingMember, typeFromDatabase));
}
return completionList;
}
return null;
}
return HandleKeywordCompletion (completionContext, result, tokenIndex, token);
default:
if ((Char.IsLetter (completionChar) || completionChar == '_') && TextEditorProperties.EnableAutoCodeCompletion
&& !stateTracker.Engine.IsInsideDocLineComment
&& !stateTracker.Engine.IsInsideOrdinaryCommentOrString)
{
char prevCh = completionContext.TriggerOffset > 2
? Editor.GetCharAt (completionContext.TriggerOffset - 2)
: '\0';
char nextCh = completionContext.TriggerOffset < Editor.TextLength
? Editor.GetCharAt (completionContext.TriggerOffset)
: ' ';
const string allowedChars = ";[(){}+-*/%^?:&|~!<>=";
if (!Char.IsWhiteSpace (nextCh) && allowedChars.IndexOf (nextCh) < 0)
return null;
if (Char.IsWhiteSpace (prevCh) || allowedChars.IndexOf (prevCh) >= 0)
{
result = FindExpression (dom, completionContext, -1);
if (result == null)
return null;
if (result.ExpressionContext != ExpressionContext.IdentifierExpected) {
triggerWordLength = 1;
bool autoSelect = true;
int cpos;
if ((prevCh == ',' || prevCh == '(') && GetParameterCompletionCommandOffset (out cpos)) {
CodeCompletionContext ctx = CompletionWidget.CreateCodeCompletionContext (cpos);
NRefactoryParameterDataProvider provider = ParameterCompletionCommand (ctx) as NRefactoryParameterDataProvider;
if (provider != null) {
int i = provider.GetCurrentParameterIndex (ctx) - 1;
if (i < provider.Methods[0].Parameters.Count) {
IType returnType = dom.GetType (provider.Methods[0].Parameters[i].ReturnType);
autoSelect = returnType == null || returnType.ClassType != ClassType.Delegate;
}
}
}
CompletionDataList dataList = CreateCtrlSpaceCompletionData (completionContext, result);
dataList.AutoSelect = autoSelect;
return dataList;
}
}
}
break;
}
} catch (Exception e) {
System.Console.WriteLine("cce: " +e);
} finally {
// if (timer != null)
// timer.Dispose ();
}
return null;
}
CompletionDataList GetDefineCompletionData()
{
if (Document.Project == null)
return null;
Dictionary<string, string> symbols = new Dictionary<string, string> ();
CompletionDataList cp = new ProjectDomCompletionDataList ();
foreach (DotNetProjectConfiguration conf in Document.Project.Configurations) {
FSharpCompilerParameters cparams = conf.CompilationParameters as FSharpCompilerParameters;
if (cparams != null) {
string[] syms = cparams.DefineSymbols.Split (';');
foreach (string s in syms) {
string ss = s.Trim ();
if (ss.Length > 0 && !symbols.ContainsKey (ss)) {
symbols [ss] = ss;
cp.Add (ss, "md-literal");
}
}
}
}
return cp;
}
CompletionDataList GetPartialCompletionData(CodeCompletionContext ctx, IType type, string modifiers)
{
CompletionDataList result = new ProjectDomCompletionDataList ();
CompoundType partialType = dom.GetType (type.FullName) as CompoundType;
if (partialType != null) {
List<IMethod> methods = new List<IMethod> ();
// gather all partial methods without implementation
foreach (IType part in partialType.Parts) {
if (part.Location == type.Location && part.CompilationUnit.FileName == type.CompilationUnit.FileName)
continue;
foreach (IMethod method in part.Methods) {
if (method.IsPartial && method.BodyRegion.End.Line == 0 && !ContainsDeclaration (type, method)) {
methods.Add (method);
}
}
}
// now filter all methods that are implemented in the compound class
foreach (IType part in partialType.Parts) {
if (part.Location == type.Location && part.CompilationUnit.FileName == type.CompilationUnit.FileName)
continue;
for (int i = 0; i < methods.Count; i++) {
IMethod curMethod = methods[i];
IMethod method = GetDeclaration (part, curMethod);
if (method != null && method.BodyRegion.End.Line != 0) {
methods.RemoveAt (i);
i--;
continue;
}
}
}
foreach (IMethod method in methods) {
NewOverrideCompletionData data = new NewOverrideCompletionData (dom, Editor, ctx.TriggerOffset, type, method);
data.GenerateBody = false;
result.Add (data);
}
}
return result;
}
CompletionDataList CreateTypeCompletionData(DomLocation location, IType callingType, ExpressionContext context, IReturnType returnType, IReturnType returnTypeUnresolved)
{
CompletionDataList result = new ProjectDomCompletionDataList ();
// "var o = new " needs special treatment.
if (returnType == null && returnTypeUnresolved != null && returnTypeUnresolved.FullName == "var")
returnType = returnTypeUnresolved = DomReturnType.Object;
// ExpressionContext.TypeExpressionContext tce = context as ExpressionContext.TypeExpressionContext;
CompletionDataCollector col = new CompletionDataCollector (result, Document.CompilationUnit, location);
IType type = null;
if (returnType != null)
type = dom.GetType (returnType);
if (type == null)
type = dom.SearchType (new SearchTypeRequest (Document.CompilationUnit, returnTypeUnresolved, null));
if (type == null || !(type.IsAbstract || type.ClassType == ClassType.Interface)) {
if (type == null || type.ConstructorCount == 0 || type.Methods.Any (c => c.IsConstructor && c.IsAccessibleFrom (dom, callingType, type, callingType != null && dom.GetInheritanceTree (callingType).Any (x => x.FullName == type.FullName)))) {
if (returnTypeUnresolved != null) {
col.FullyQualify = true;
ICompletionData unresovedCompletionData = col.Add (returnTypeUnresolved);
col.FullyQualify = false;
result.DefaultCompletionString = StripGenerics (unresovedCompletionData.CompletionText);
} else {
ICompletionData unresovedCompletionData = col.Add (returnType);
result.DefaultCompletionString = StripGenerics (unresovedCompletionData.CompletionText);
}
}
}
// if (tce != null && tce.Type != null) {
// result.DefaultCompletionString = StripGenerics (col.AddCompletionData (result, tce.Type).CompletionString);
// }
// else {
// }
if (type == null)
return result;
HashSet<string> usedNamespaces = new HashSet<string> (GetUsedNamespaces ());
if (type.FullName == DomReturnType.Object.FullName)
AddPrimitiveTypes (col);
foreach (IType curType in dom.GetSubclasses (type)) {
if (context != null && context.FilterEntry (curType))
continue;
if ((curType.TypeModifier & TypeModifier.HasOnlyHiddenConstructors) == TypeModifier.HasOnlyHiddenConstructors)
continue;
if (usedNamespaces.Contains (curType.Namespace)) {
if (curType.ConstructorCount > 0) {
if (!(curType.Methods.Any (c => c.IsConstructor && c.IsAccessibleFrom (dom, curType, callingType, callingType != null && dom.GetInheritanceTree (callingType).Any (x => x.FullName == curType.FullName)))))
continue;
}
col.Add (curType);
} else {
string nsName = curType.Namespace;
int idx = nsName.IndexOf ('.');
if (idx >= 0)
nsName = nsName.Substring (0, idx);
col.Add (new Namespace (nsName));
}
}
// add aliases
if (returnType != null) {
foreach (IUsing u in Document.CompilationUnit.Usings) {
foreach (KeyValuePair<string, IReturnType> alias in u.Aliases) {
if (alias.Value.ToInvariantString () == returnType.ToInvariantString ())
result.Add (alias.Key, "md-class");
}
}
}
return result;
}