public static IEnumerable<ICompletionData> DoCodeComplete(string editorText, int offset) // not the best way to put in the whole string every time
{
var doc = new ReadOnlyDocument(editorText);
var location = doc.GetLocation(offset);
string parsedText = editorText; // TODO: Why are there different values in test cases?
var syntaxTree = new CSharpParser().Parse(parsedText, "program.cs");
syntaxTree.Freeze();
var unresolvedFile = syntaxTree.ToTypeSystem();
var mb = new DefaultCompletionContextProvider(doc, unresolvedFile);
IProjectContent pctx = new CSharpProjectContent();
var refs = new List<IUnresolvedAssembly> { mscorlib.Value, systemCore.Value, systemAssembly.Value };
pctx = pctx.AddAssemblyReferences(refs);
pctx = pctx.AddOrUpdateFiles(unresolvedFile);
var cmp = pctx.CreateCompilation();
var resolver3 = unresolvedFile.GetResolver(cmp, location);
var engine = new CSharpCompletionEngine(doc, mb, new TestCompletionDataFactory(resolver3), pctx, resolver3.CurrentTypeResolveContext);
engine.EolMarker = Environment.NewLine;
engine.FormattingPolicy = FormattingOptionsFactory.CreateMono();
var data = engine.GetCompletionData(offset, controlSpace: false);
return data;
}
/// <summary>
/// Initializes a new instance of the <see cref="CSharpCompletionContext"/> class.
/// </summary>
/// <param name="document">The document, make sure the FileName property is set on the document.</param>
/// <param name="offset">The offset.</param>
/// <param name="projectContent">Content of the project.</param>
/// <param name="usings">The usings.</param>
public CSharpCompletionContext(IDocument document, int offset, IProjectContent projectContent, string usings = null)
{
OriginalDocument = document;
OriginalOffset = offset;
//if the document is a c# script we have to soround the document with some code.
Document = PrepareCompletionDocument(document, ref offset, usings);
Offset = offset;
var syntaxTree = new CSharpParser().Parse(Document, Document.FileName);
syntaxTree.Freeze();
var unresolvedFile = syntaxTree.ToTypeSystem();
ProjectContent = projectContent.AddOrUpdateFiles(unresolvedFile);
//note: it's important that the project content is used that is returned after adding the unresolved file
Compilation = ProjectContent.CreateCompilation();
var location = Document.GetLocation(Offset);
Resolver = unresolvedFile.GetResolver(Compilation, location);
TypeResolveContextAtCaret = unresolvedFile.GetTypeResolveContext(Compilation, location);
CompletionContextProvider = new DefaultCompletionContextProvider(Document, unresolvedFile);
}
public void ProcessInput(string input, string sourceFile)
{
if (string.IsNullOrEmpty(sourceFile))
return;
//see if it contains the word class, enum or struct
//todo: this is buggy because if two classes are evaluated seperately, the original file will overwrite it
// if the file is a script we should try to extract the class name and use it as the file name. sciptname + class
// we can probably use the AST for that.
if (input.Contains("class ") || input.Contains("enum ") || input.Contains("struct "))
{
var syntaxTree = new CSharpParser().Parse(input, sourceFile);
syntaxTree.Freeze();
var unresolvedFile = syntaxTree.ToTypeSystem();
projectContent = projectContent.AddOrUpdateFiles(unresolvedFile);
}
}
// i'm not using this...
public static CSharpCompletionEngine CreateEngine(string text, out int cursorPosition, params IUnresolvedAssembly[] references)
{
string parsedText;
string editorText;
cursorPosition = text.IndexOf('$');
int endPos = text.IndexOf('$', cursorPosition + 1);
if (endPos == -1)
{
if (cursorPosition < 0)
{
parsedText = editorText = text;
}
else
{
parsedText = editorText = text.Substring(0, cursorPosition) + text.Substring(cursorPosition + 1);
}
}
else
{
parsedText = text.Substring(0, cursorPosition) + new string(' ', endPos - cursorPosition) + text.Substring(endPos + 1);
editorText = text.Substring(0, cursorPosition) + text.Substring(cursorPosition + 1, endPos - cursorPosition - 1) + text.Substring(endPos + 1);
cursorPosition = endPos - 1;
}
var doc = new ReadOnlyDocument(editorText);
IProjectContent projContent = new CSharpProjectContent();
var refs = new List<IUnresolvedAssembly> { mscorlib.Value, systemCore.Value, systemAssembly.Value, systemXmlLinq.Value };
if (references != null)
refs.AddRange(references);
projContent = projContent.AddAssemblyReferences(refs);
// Parse => SyntaxTree
var syntaxTree = new CSharpParser().Parse(parsedText, "program.cs");
syntaxTree.Freeze();
var unresolvedFile = syntaxTree.ToTypeSystem();
// Add CSharpUnresolvedFile to CSharpProjectContent
projContent = projContent.AddOrUpdateFiles(unresolvedFile);
// Create a TypeSystem.ICompilation that allows resolving within the project.
var compilation = projContent.CreateCompilation();
var textCursorLocation = cursorPosition > 0 ? doc.GetLocation(cursorPosition) : new TextLocation(1, 1);
#region Create and Refine the type resolution context as much as possible
var typeResolveContext = new CSharpTypeResolveContext(compilation.MainAssembly);
typeResolveContext = typeResolveContext.WithUsingScope(unresolvedFile.GetUsingScope(textCursorLocation).Resolve(compilation));
var curDef = unresolvedFile.GetInnermostTypeDefinition(textCursorLocation);
if (curDef != null)
{
var resolvedDef = curDef.Resolve(typeResolveContext).GetDefinition();
typeResolveContext = typeResolveContext.WithCurrentTypeDefinition(resolvedDef);
var curMember = resolvedDef.Members.FirstOrDefault(m => m.Region.Begin <= textCursorLocation && textCursorLocation < m.BodyRegion.End);
if (curMember != null)
{
typeResolveContext = typeResolveContext.WithCurrentMember(curMember);
}
}
#endregion
// Cool! Marry the concept of content & typed
var completionContext = new DefaultCompletionContextProvider(doc, unresolvedFile);
#region Add Preprocessor Symbols
completionContext.AddSymbol("TEST");
foreach (var sym in syntaxTree.ConditionalSymbols)
{
completionContext.AddSymbol(sym);
}
#endregion
var engine = new CSharpCompletionEngine(doc, completionContext, new TestCompletionDataFactory(new CSharpResolver(typeResolveContext)), projContent, typeResolveContext);
engine.EolMarker = Environment.NewLine;
engine.FormattingPolicy = FormattingOptionsFactory.CreateMono();
return engine;
}
