/// <summary>
/// This method parses the current line, and determines which suggestions to show for code completion (intellisense)
/// </summary>
/// <param name="session"></param>
private void UpdateCodeComplete(CompletionSession session)
{
//parse current line
//set results
//set filter
try
{
ParseQueueProcessor.ShowProgressDialog = false; //maybe not actually required anymore
var currentLine = VisualStudio.GetCurrentLine();
var currentIndex = VisualStudio.GetCursorPositionInLine();
var lineParser = new FortranStatementParser();
var beginOfStatement = 0;
var statement = lineParser.FindEffectiveStatementAtOffset(currentLine, currentIndex, out beginOfStatement);
var fullStatement = currentLine.Substring(beginOfStatement, currentIndex - beginOfStatement);
var currentMember = GetCurrent <IMember>();
ShowMethodSignatureAsToolTip(session, currentMember, currentLine, currentIndex);
IList <INameable> codeCompleteOptions;
var filter = "";
var addLanguageKeywords = false;
var codeElementsInScope =
FortranSyntaxTreeModel.GetElementsAvailableInScope(SyntaxTreeMaintainer.GetSyntaxTrees(),
currentMember);
// are we in a 'call something' statement?
var callMatch = callRegex.Match(statement);
if (callMatch.Success)
{
//only subroutines
codeCompleteOptions = codeElementsInScope.OfType <Subroutine>().Cast <INameable>().ToList(); //subroutines only
session.InsertionIndexInLine = beginOfStatement + callMatch.Groups[1].Index;
filter = callMatch.Groups[1].Value;
}
else if (!statement.Contains('%')) //local scope
{
if (statement.Length > 0 &&
FortranParseHelper.IsWhiteSpace(statement[statement.Length - 1]))
{
//reset: wrong statement:
beginOfStatement += statement.Length;
statement = "";
}
codeCompleteOptions = codeElementsInScope.Where(ce => !(ce is Subroutine)).ToList(); //subroutines only available after a 'call'
session.InsertionIndexInLine = beginOfStatement;
filter = statement;
addLanguageKeywords = true;
}
else // nested in type, eg: channel % sourceNode % id
{
var elements = FortranParseHelper.SplitElementsInStatement(statement, fullStatement, ref beginOfStatement, out filter);
if (elements.Count < 1)
{
throw new NotSupportedException("help!");
}
var variableName = elements[0];
var matchingVariable = codeElementsInScope
.OfType <Variable>()
.FirstOrDefault(lv => String.Equals(lv.Name, variableName, StringComparison.InvariantCultureIgnoreCase));
var typeOfVariable = matchingVariable.TypeString;
var currentType = codeElementsInScope
.OfType <Type>()
.FirstOrDefault(tp => String.Equals(tp.Name, typeOfVariable, StringComparison.InvariantCultureIgnoreCase));
for (int i = 1; i < elements.Count; i++)
{
if (currentType == null)
{
break;
}
var propertyName = elements[i];
var property = GetElementsOfType(currentType).FirstOrDefault(vf => String.Equals(vf.Name, propertyName, StringComparison.InvariantCultureIgnoreCase));
typeOfVariable = property.TypeString;
currentType = codeElementsInScope
.OfType <Type>()
.FirstOrDefault(tp => String.Equals(tp.Name, typeOfVariable, StringComparison.InvariantCultureIgnoreCase));
}
if (currentType == null)
{
codeCompleteOptions = new INameable[] { }
}
;
else
{
codeCompleteOptions = GetElementsOfType(currentType).Cast <INameable>().ToList();
}
session.InsertionIndexInLine = beginOfStatement;
}
// gather all results
var completionItems = codeCompleteOptions.Select(e => new CompletionItem(e.Name, FortranIconProvider.GetIconForMember(e))
{
ToolTip = GetTooltipForMember(currentMember, e)
}).ToList();
if (addLanguageKeywords)
{
foreach (var keyword in fortranKeywords)
{
completionItems.Add(new CompletionItem(keyword, null));
}
foreach (var intrinsic in fortranIntrinsics)
{
completionItems.Add(new CompletionItem(intrinsic.Key, IntrinsicIcon)
{
ToolTip = intrinsic.Value
});
}
}
{//YK, 2020, also add all the words already in this current file
//check file content.
var myFileContents = VisualStudio.GetCurrentCodeFileContent();
{
////two methods to replace \t, \n, \r, tested and works
//myFileContents = Regex.Replace(myFileContents, @"\t", " ");
////myFileContents = myFileContents.Replace("\t", " ");
//myFileContents = myFileContents.Replace("\r", " ");
//myFileContents = myFileContents.Replace("\n", " ");
}
{//example to remove separator...
//char[] separators = new char[] { ' ', ';', ',', '\r', '\t', '\n', '(', ')', '!', ':', '=', '+', '*', '/' };
//string s = "replace;multiple,characters\tin;a,c\rsharp,string";
//string[] temp = s.Split(separators, StringSplitOptions.RemoveEmptyEntries);
//s = String.Join("\n", temp);
}
{//example to remove duplicated string
//String[] a = { "1", "1", "2", "1", "1", "3", "1", "1", };
//Console.WriteLine("原数组长度: {0}", a.Length);
//Console.WriteLine("排除后数组长度:{0}", a.Distinct<string>().ToArray().Length);
//Console.ReadKey();
}
char[] separators = new char[] { ' ', ';', ',', '\r', '\t', '\n', '(', ')', '!', ':', '=', '+', '-', '*', '/', '&', '.', '\'', '<', '>', '{', '}', '[', ']', '$', '%', '?' };
string s = myFileContents;
string[] myFileContentSplittedStr = myFileContents.Split(separators, StringSplitOptions.RemoveEmptyEntries);
string[] myFileContentSplittedStrDistinct = myFileContentSplittedStr.Distinct <string>().ToArray();
foreach (var keyword in myFileContentSplittedStrDistinct)
{
//{//example to add non-duplicated string
// //if (!listString.Contains(eachString))
// // listString.Add(eachString);
//}
completionItems.Add(new CompletionItem(keyword, null));
}
}
session.SetCompletionSet(completionItems, filter);
}
catch (Exception e)
{
Log.Error("Error while updating code complete", e);
}
finally
{
ParseQueueProcessor.ShowProgressDialog = true; //messes with intellisense popup
}
}