public IParameterDataProvider GetParameterDataProvider(int offset, char completionChar)
{
//Ignoring completionChar == '\0' because it usually means moving with arrow keys, tab or enter
//we don't want to trigger on those events but it probably should be handled somewhere else
//since our job is to resolve method and not to decide when to display tooltip or not
if (offset <= 0 || completionChar == '\0')
{
return(null);
}
SetOffset(offset);
int startOffset;
string text;
if (currentMember == null && currentType == null)
{
//In case of attributes parse all file
startOffset = 0;
text = document.Text;
}
else
{
var memberText = GetMemberTextToCaret();
text = memberText.Item1;
startOffset = document.GetOffset(memberText.Item2);
}
var parenStack = new Stack <int> ();
var chevronStack = new Stack <int> ();
var squareStack = new Stack <int> ();
var bracketStack = new Stack <int> ();
var lex = new MiniLexer(text);
bool failed = lex.Parse((ch, off) => {
if (lex.IsInString || lex.IsInChar || lex.IsInVerbatimString || lex.IsInSingleComment || lex.IsInMultiLineComment || lex.IsInPreprocessorDirective)
{
return(false);
}
switch (ch)
{
case '(':
parenStack.Push(startOffset + off);
break;
case ')':
if (parenStack.Count == 0)
{
return(true);
}
parenStack.Pop();
break;
case '<':
chevronStack.Push(startOffset + off);
break;
case '>':
//Don't abort if we don't have macthing '<' for '>' it could be if (i > 0) Foo($
if (chevronStack.Count == 0)
{
return(false);
}
chevronStack.Pop();
break;
case '[':
squareStack.Push(startOffset + off);
break;
case ']':
if (squareStack.Count == 0)
{
return(true);
}
squareStack.Pop();
break;
case '{':
bracketStack.Push(startOffset + off);
break;
case '}':
if (bracketStack.Count == 0)
{
return(true);
}
bracketStack.Pop();
break;
}
return(false);
});
if (failed)
{
return(null);
}
int result = -1;
if (parenStack.Count > 0)
{
result = parenStack.Pop();
}
if (squareStack.Count > 0)
{
result = Math.Max(result, squareStack.Pop());
}
if (chevronStack.Count > 0)
{
result = Math.Max(result, chevronStack.Pop());
}
//If we are inside { bracket we don't want to display anything
if (bracketStack.Count > 0 && bracketStack.Pop() > result)
{
return(null);
}
if (result == -1)
{
return(null);
}
SetOffset(result + 1);
ResolveResult resolveResult;
switch (document.GetCharAt(result))
{
case '(':
var invoke = GetInvocationBeforeCursor(true) ?? GetConstructorInitializerBeforeCursor();
if (invoke == null)
{
return(null);
}
if (invoke.Node is ConstructorInitializer)
{
var init = (ConstructorInitializer)invoke.Node;
if (init.ConstructorInitializerType == ConstructorInitializerType.This)
{
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), ctx.CurrentTypeDefinition, init));
}
else
{
var baseType = ctx.CurrentTypeDefinition.DirectBaseTypes.FirstOrDefault(bt => bt.Kind != TypeKind.Interface);
if (baseType == null)
{
return(null);
}
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), baseType));
}
}
if (invoke.Node is ObjectCreateExpression)
{
var createType = ResolveExpression(((ObjectCreateExpression)invoke.Node).Type);
if (createType.Result.Type.Kind == TypeKind.Unknown)
{
return(null);
}
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), createType.Result.Type));
}
if (invoke.Node is ICSharpCode.NRefactory.CSharp.Attribute)
{
var attribute = ResolveExpression(invoke);
if (attribute == null || attribute.Result == null)
{
return(null);
}
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), attribute.Result.Type));
}
var invocationExpression = ResolveExpression(invoke);
if (invocationExpression == null || invocationExpression.Result == null || invocationExpression.Result.IsError)
{
return(null);
}
resolveResult = invocationExpression.Result;
if (resolveResult is MethodGroupResolveResult)
{
return(factory.CreateMethodDataProvider(document.GetOffset(invoke.Node.StartLocation), CollectMethods(invoke.Node, resolveResult as MethodGroupResolveResult)));
}
if (resolveResult is MemberResolveResult)
{
var mr = resolveResult as MemberResolveResult;
if (mr.Member is IMethod)
{
return(factory.CreateMethodDataProvider(document.GetOffset(invoke.Node.StartLocation), new [] { (IMethod)mr.Member }));
}
}
if (resolveResult.Type.Kind == TypeKind.Delegate)
{
return(factory.CreateDelegateDataProvider(document.GetOffset(invoke.Node.StartLocation), resolveResult.Type));
}
//
// if (result.ExpressionContext == ExpressionContext.BaseConstructorCall) {
// if (resolveResult is ThisResolveResult)
// return new NRefactoryParameterDataProvider (textEditorData, resolver, resolveResult as ThisResolveResult);
// if (resolveResult is BaseResolveResult)
// return new NRefactoryParameterDataProvider (textEditorData, resolver, resolveResult as BaseResolveResult);
// }
// IType resolvedType = resolver.SearchType (resolveResult.ResolvedType);
// if (resolvedType != null && resolvedType.ClassType == ClassType.Delegate) {
// return new NRefactoryParameterDataProvider (textEditorData, result.Expression, resolvedType);
// }
break;
case '<':
invoke = GetMethodTypeArgumentInvocationBeforeCursor();
if (invoke != null)
{
var tExpr2 = ResolveExpression(invoke);
if (tExpr2 != null && tExpr2.Result is MethodGroupResolveResult && !tExpr2.Result.IsError)
{
return(factory.CreateTypeParameterDataProvider(document.GetOffset(invoke.Node.StartLocation), CollectMethods(invoke.Node, tExpr2.Result as MethodGroupResolveResult)));
}
}
invoke = GetTypeBeforeCursor();
if (invoke == null || invoke.Node.StartLocation.IsEmpty)
{
return(null);
}
var tExpr = ResolveExpression(invoke);
if (tExpr == null || tExpr.Result == null || tExpr.Result.IsError)
{
return(null);
}
return(factory.CreateTypeParameterDataProvider(document.GetOffset(invoke.Node.StartLocation), CollectAllTypes(tExpr.Result.Type)));
case '[':
invoke = GetIndexerBeforeCursor();
if (invoke == null)
{
return(null);
}
if (invoke.Node is ArrayCreateExpression)
{
return(null);
}
var indexerExpression = ResolveExpression(invoke);
if (indexerExpression == null || indexerExpression.Result == null || indexerExpression.Result.IsError)
{
return(null);
}
return(factory.CreateIndexerParameterDataProvider(document.GetOffset(invoke.Node.StartLocation), indexerExpression.Result.Type, GetAccessibleIndexers(indexerExpression.Result.Type), invoke.Node));
}
return(null);
}
public IParameterDataProvider GetParameterDataProvider(int offset, char completionChar)
{
if (offset <= 0)
{
return(null);
}
if (completionChar != '(' && completionChar != '<' && completionChar != '[' && completionChar != ',')
{
return(null);
}
SetOffset(offset);
if (IsInsideCommentStringOrDirective())
{
return(null);
}
ResolveResult resolveResult;
switch (completionChar)
{
case '(':
var invoke = GetInvocationBeforeCursor(true) ?? GetConstructorInitializerBeforeCursor();
if (invoke == null)
{
return(null);
}
if (invoke.Node is ConstructorInitializer)
{
var init = (ConstructorInitializer)invoke.Node;
if (init.ConstructorInitializerType == ConstructorInitializerType.This)
{
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), ctx.CurrentTypeDefinition));
}
else
{
var baseType = ctx.CurrentTypeDefinition.DirectBaseTypes.FirstOrDefault(bt => bt.Kind != TypeKind.Interface);
if (baseType == null)
{
return(null);
}
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), baseType));
}
}
if (invoke.Node is ObjectCreateExpression)
{
var createType = ResolveExpression(((ObjectCreateExpression)invoke.Node).Type);
if (createType.Item1.Type.Kind == TypeKind.Unknown)
{
return(null);
}
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), createType.Item1.Type));
}
if (invoke.Node is ICSharpCode.NRefactory.CSharp.Attribute)
{
var attribute = ResolveExpression(invoke);
if (attribute == null || attribute.Item1 == null)
{
return(null);
}
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), attribute.Item1.Type));
}
var invocationExpression = ResolveExpression(invoke);
if (invocationExpression == null || invocationExpression.Item1 == null || invocationExpression.Item1.IsError)
{
return(null);
}
resolveResult = invocationExpression.Item1;
if (resolveResult is MethodGroupResolveResult)
{
return(factory.CreateMethodDataProvider(document.GetOffset(invoke.Node.StartLocation), CollectMethods(invoke.Node, resolveResult as MethodGroupResolveResult)));
}
if (resolveResult is MemberResolveResult)
{
var mr = resolveResult as MemberResolveResult;
if (mr.Member is IMethod)
{
return(factory.CreateMethodDataProvider(document.GetOffset(invoke.Node.StartLocation), new [] { (IMethod)mr.Member }));
}
}
if (resolveResult.Type.Kind == TypeKind.Delegate)
{
return(factory.CreateDelegateDataProvider(document.GetOffset(invoke.Node.StartLocation), resolveResult.Type));
}
//
// if (result.ExpressionContext == ExpressionContext.BaseConstructorCall) {
// if (resolveResult is ThisResolveResult)
// return new NRefactoryParameterDataProvider (textEditorData, resolver, resolveResult as ThisResolveResult);
// if (resolveResult is BaseResolveResult)
// return new NRefactoryParameterDataProvider (textEditorData, resolver, resolveResult as BaseResolveResult);
// }
// IType resolvedType = resolver.SearchType (resolveResult.ResolvedType);
// if (resolvedType != null && resolvedType.ClassType == ClassType.Delegate) {
// return new NRefactoryParameterDataProvider (textEditorData, result.Expression, resolvedType);
// }
break;
case ',':
invoke = GetInvocationBeforeCursor(true) ?? GetIndexerBeforeCursor();
if (invoke == null)
{
invoke = GetTypeBeforeCursor();
if (invoke != null)
{
if (GetCurrentParameterIndex(document.GetOffset(invoke.Node.StartLocation), offset) < 0)
{
return(null);
}
var typeExpression = ResolveExpression(invoke);
if (typeExpression == null || typeExpression.Item1 == null || typeExpression.Item1.IsError)
{
return(null);
}
return(factory.CreateTypeParameterDataProvider(document.GetOffset(invoke.Node.StartLocation), CollectAllTypes(typeExpression.Item1.Type)));
}
return(null);
}
if (GetCurrentParameterIndex(document.GetOffset(invoke.Node.StartLocation), offset) < 0)
{
return(null);
}
if (invoke.Node is ObjectCreateExpression)
{
var createType = ResolveExpression(((ObjectCreateExpression)invoke.Node).Type);
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), createType.Item1.Type));
}
if (invoke.Node is ICSharpCode.NRefactory.CSharp.Attribute)
{
var attribute = ResolveExpression(invoke);
if (attribute == null || attribute.Item1 == null)
{
return(null);
}
return(factory.CreateConstructorProvider(document.GetOffset(invoke.Node.StartLocation), attribute.Item1.Type));
}
invocationExpression = ResolveExpression(invoke);
if (invocationExpression == null || invocationExpression.Item1 == null || invocationExpression.Item1.IsError)
{
return(null);
}
resolveResult = invocationExpression.Item1;
if (resolveResult is MethodGroupResolveResult)
{
return(factory.CreateMethodDataProvider(document.GetOffset(invoke.Node.StartLocation), CollectMethods(invoke.Node, resolveResult as MethodGroupResolveResult)));
}
if (resolveResult is MemberResolveResult)
{
if (resolveResult.Type.Kind == TypeKind.Delegate)
{
return(factory.CreateDelegateDataProvider(document.GetOffset(invoke.Node.StartLocation), resolveResult.Type));
}
var mr = resolveResult as MemberResolveResult;
if (mr.Member is IMethod)
{
return(factory.CreateMethodDataProvider(document.GetOffset(invoke.Node.StartLocation), new [] { (IMethod)mr.Member }));
}
}
if (resolveResult != null)
{
return(factory.CreateIndexerParameterDataProvider(document.GetOffset(invoke.Node.StartLocation), resolveResult.Type, invoke.Node));
}
break;
case '<':
invoke = GetTypeBeforeCursor();
if (invoke == null)
{
return(null);
}
var tExpr = ResolveExpression(invoke);
if (tExpr == null || tExpr.Item1 == null || tExpr.Item1.IsError)
{
return(null);
}
return(factory.CreateTypeParameterDataProvider(document.GetOffset(invoke.Node.StartLocation), CollectAllTypes(tExpr.Item1.Type)));
case '[':
invoke = GetIndexerBeforeCursor();
if (invoke == null)
{
return(null);
}
var indexerExpression = ResolveExpression(invoke);
if (indexerExpression == null || indexerExpression.Item1 == null || indexerExpression.Item1.IsError)
{
return(null);
}
return(factory.CreateIndexerParameterDataProvider(document.GetOffset(invoke.Node.StartLocation), indexerExpression.Item1.Type, invoke.Node));
}
return(null);
}
public IParameterDataProvider GetParameterDataProvider(int offset, char completionChar)
{
if (offset <= 0)
{
return(null);
}
if (completionChar != '(' && completionChar != '<' && completionChar != '[' && completionChar != ',')
{
return(null);
}
SetOffset(offset);
if (IsInsideCommentOrString())
{
return(null);
}
ResolveResult resolveResult;
switch (completionChar)
{
case '(':
var invoke = GetInvocationBeforeCursor(true) ?? GetIndexerBeforeCursor();
if (invoke == null)
{
return(null);
}
if (invoke.Item2 is ObjectCreateExpression)
{
var createType = ResolveExpression(invoke.Item1, ((ObjectCreateExpression)invoke.Item2).Type, invoke.Item3);
return(factory.CreateConstructorProvider(createType.Item1.Type));
}
if (invoke.Item2 is ICSharpCode.NRefactory.Cpp.Attribute)
{
var attribute = ResolveExpression(invoke.Item1, invoke.Item2, invoke.Item3);
if (attribute == null || attribute.Item1 == null)
{
return(null);
}
return(factory.CreateConstructorProvider(attribute.Item1.Type));
}
var invocationExpression = ResolveExpression(invoke.Item1, invoke.Item2, invoke.Item3);
if (invocationExpression == null || invocationExpression.Item1 == null || invocationExpression.Item1.IsError)
{
return(null);
}
resolveResult = invocationExpression.Item1;
if (resolveResult is MethodGroupResolveResult)
{
return(factory.CreateMethodDataProvider(resolveResult as MethodGroupResolveResult));
}
if (resolveResult is MemberResolveResult)
{
var mr = resolveResult as MemberResolveResult;
if (mr.Member is IMethod)
{
return(factory.CreateMethodDataProvider((IMethod)mr.Member));
}
}
if (resolveResult.Type.Kind == TypeKind.Delegate)
{
return(factory.CreateDelegateDataProvider(resolveResult.Type));
}
//
// if (result.ExpressionContext == ExpressionContext.BaseConstructorCall) {
// if (resolveResult is ThisResolveResult)
// return new NRefactoryParameterDataProvider (textEditorData, resolver, resolveResult as ThisResolveResult);
// if (resolveResult is BaseResolveResult)
// return new NRefactoryParameterDataProvider (textEditorData, resolver, resolveResult as BaseResolveResult);
// }
// IType resolvedType = resolver.SearchType (resolveResult.ResolvedType);
// if (resolvedType != null && resolvedType.ClassType == ClassType.Delegate) {
// return new NRefactoryParameterDataProvider (textEditorData, result.Expression, resolvedType);
// }
break;
case ',':
invoke = GetInvocationBeforeCursor(true) ?? GetIndexerBeforeCursor();
if (invoke == null)
{
invoke = GetTypeBeforeCursor();
if (invoke != null)
{
var typeExpression = ResolveExpression(invoke.Item1, invoke.Item2, invoke.Item3);
if (typeExpression == null || typeExpression.Item1 == null || typeExpression.Item1.IsError)
{
return(null);
}
return(factory.CreateTypeParameterDataProvider(CollectAllTypes(typeExpression.Item1.Type)));
}
return(null);
}
if (invoke.Item2 is ObjectCreateExpression)
{
var createType = ResolveExpression(invoke.Item1, ((ObjectCreateExpression)invoke.Item2).Type, invoke.Item3);
return(factory.CreateConstructorProvider(createType.Item1.Type));
}
if (invoke.Item2 is ICSharpCode.NRefactory.Cpp.Attribute)
{
var attribute = ResolveExpression(invoke.Item1, invoke.Item2, invoke.Item3);
if (attribute == null || attribute.Item1 == null)
{
return(null);
}
return(factory.CreateConstructorProvider(attribute.Item1.Type));
}
invocationExpression = ResolveExpression(invoke.Item1, invoke.Item2, invoke.Item3);
if (invocationExpression == null || invocationExpression.Item1 == null || invocationExpression.Item1.IsError)
{
return(null);
}
resolveResult = invocationExpression.Item1;
if (resolveResult is MethodGroupResolveResult)
{
return(factory.CreateMethodDataProvider(resolveResult as MethodGroupResolveResult));
}
if (resolveResult is MemberResolveResult)
{
if (resolveResult.Type.Kind == TypeKind.Delegate)
{
return(factory.CreateDelegateDataProvider(resolveResult.Type));
}
var mr = resolveResult as MemberResolveResult;
if (mr.Member is IMethod)
{
return(factory.CreateMethodDataProvider((IMethod)mr.Member));
}
}
if (resolveResult != null)
{
return(factory.CreateIndexerParameterDataProvider(resolveResult.Type, invoke.Item2));
}
break;
case '<':
invoke = GetTypeBeforeCursor();
if (invoke == null)
{
return(null);
}
var tExpr = ResolveExpression(invoke.Item1, invoke.Item2, invoke.Item3);
if (tExpr == null || tExpr.Item1 == null || tExpr.Item1.IsError)
{
return(null);
}
return(factory.CreateTypeParameterDataProvider(CollectAllTypes(tExpr.Item1.Type)));
case '[':
invoke = GetIndexerBeforeCursor();
if (invoke == null)
{
return(null);
}
var indexerExpression = ResolveExpression(invoke.Item1, invoke.Item2, invoke.Item3);
if (indexerExpression == null || indexerExpression.Item1 == null || indexerExpression.Item1.IsError)
{
return(null);
}
return(factory.CreateIndexerParameterDataProvider(indexerExpression.Item1.Type, invoke.Item2));
}
return(null);
}