public override object VisitIdentifierExpression(IdentifierExpression identifierExpression, object data)
{
if (identifierExpression.TypeArguments != null && identifierExpression.TypeArguments.Count > 0)
{
if (resolver.CallingType != null)
{
foreach (var type in resolver.Dom.GetInheritanceTree(resolver.CallingType))
{
IMethod possibleMethod = type.Methods.Where(m => m.Name == identifierExpression.Identifier && m.TypeParameters.Count == identifierExpression.TypeArguments.Count && m.IsAccessibleFrom(resolver.Dom, resolver.CallingType, resolver.CallingMember, true)).FirstOrDefault();
if (possibleMethod != null)
{
MethodResolveResult methodResolveResult = new MethodResolveResult(possibleMethod);
methodResolveResult.CallingType = resolver.CallingType;
methodResolveResult.CallingMember = resolver.CallingMember;
identifierExpression.TypeArguments.ForEach(arg => methodResolveResult.AddGenericArgument(resolver.ResolveType(arg.ConvertToReturnType())));
methodResolveResult.ResolveExtensionMethods();
return(methodResolveResult);
}
}
}
TypeReference reference = new TypeReference(identifierExpression.Identifier);
reference.GenericTypes.AddRange(identifierExpression.TypeArguments);
ResolveResult result = CreateResult(reference);
result.StaticResolve = true;
return(result);
}
// Console.WriteLine ("visit id: " + identifierExpression.Identifier);
var res = resolver.ResolveIdentifier(this, identifierExpression.Identifier.TrimEnd('.'));
// Console.WriteLine ("result: " + res);
return(res);
}
internal ResolveResult ResolveLambda(ResolveVisitor visitor, Expression lambdaExpression)
{
if (expressions.Contains(lambdaExpression))
{
return(null);
}
expressions.Add(lambdaExpression);
if (lambdaExpression.Parent is LambdaExpression)
{
return(ResolveLambda(visitor, lambdaExpression.Parent as Expression));
}
if (lambdaExpression.Parent is ParenthesizedExpression)
{
return(ResolveLambda(visitor, lambdaExpression.Parent as Expression));
}
if (lambdaExpression.Parent is AssignmentExpression)
{
return(visitor.Resolve(((AssignmentExpression)lambdaExpression.Parent).Left));
}
if (lambdaExpression.Parent is CastExpression)
{
return(visitor.Resolve(((CastExpression)lambdaExpression.Parent)));
}
if (lambdaExpression.Parent is VariableDeclaration)
{
VariableDeclaration varDec = (VariableDeclaration)lambdaExpression.Parent;
return(resolver.GetFunctionParameterType(resolver.ResolveIdentifier(visitor, varDec.Name)));
}
if (lambdaExpression.Parent is InvocationExpression)
{
LambdaExpression lambda = (LambdaExpression)lambdaExpression;
ResolveResult lambdaReturnType = null;
if (!lambda.ExpressionBody.IsNull)
{
DomLocation old = resolver.resolvePosition;
try {
resolver.resolvePosition = new DomLocation((resolver.CallingMember != null ? resolver.CallingMember.Location.Line : 0) +
lambda.ExpressionBody.StartLocation.Line - 2,
lambda.ExpressionBody.StartLocation.Column - 1);
lambdaReturnType = visitor.Resolve(lambda.ExpressionBody);
} finally {
resolver.resolvePosition = old;
}
}
InvocationExpression invocation = (InvocationExpression)lambdaExpression.Parent;
MethodResolveResult result = visitor.Resolve(invocation.TargetObject) as MethodResolveResult;
if (result == null)
{
MonoDevelop.Core.LoggingService.LogWarning("No compatible method found :" + invocation.TargetObject);
return(null);
}
result.ResolveExtensionMethods();
for (int i = 0; i < invocation.Arguments.Count; i++)
{
if (invocation.Arguments[i] == lambdaExpression && i < result.MostLikelyMethod.Parameters.Count)
{
IParameter parameter = result.MostLikelyMethod.Parameters[i];
IReturnType returnType = parameter.ReturnType;
IType type = resolver.Dom.GetType(returnType);
bool isResolved = false;
if (type != null && type.ClassType == MonoDevelop.Projects.Dom.ClassType.Delegate)
{
IMethod invocationMethod = type.Methods.First();
if (invocationMethod.Parameters.Count > 0)
{
if (lambdaReturnType == null || lambdaReturnType.ResolvedType == null || string.IsNullOrEmpty(lambdaReturnType.ResolvedType.FullName))
{
returnType = invocationMethod.Parameters[System.Math.Min(i, invocationMethod.Parameters.Count - 1)].ReturnType;
}
else
{
returnType = (IReturnType) new TypeReplaceVisitor(invocationMethod.ReturnType, lambdaReturnType.ResolvedType).Visit(returnType, null);
}
isResolved = true;
}
}
if (!isResolved)
{
while (returnType.GenericArguments.Count > 0)
{
returnType = returnType.GenericArguments[0];
}
}
string invariantString = returnType.ToInvariantString();
if (returnTypeDictionary.ContainsKey(invariantString))
{
return(returnTypeDictionary[invariantString]);
}
ResolveResult createdResult = visitor.CreateResult(returnType);
// if (!(returnType.Type is AnonymousType))
returnTypeDictionary[invariantString] = createdResult;
return(createdResult);
}
}
if (lambdaReturnType != null && !string.IsNullOrEmpty(lambdaReturnType.ResolvedType.FullName))
{
return(lambdaReturnType);
}
foreach (Expression arg in invocation.Arguments)
{
var argType = arg is LambdaExpression ? DomReturnType.Void : visitor.GetTypeSafe(arg);
result.AddArgument(argType);
}
result.ResolveExtensionMethods();
//Console.WriteLine ("maybe method:" + result.MostLikelyMethod);
for (int i = 0; i < invocation.Arguments.Count; i++)
{
if (invocation.Arguments [i] == lambdaExpression && i < result.MostLikelyMethod.Parameters.Count)
{
IParameter parameterType = result.MostLikelyMethod.Parameters [i];
//Console.WriteLine (i + " par: " + parameterType);
if (parameterType.ReturnType.Name == "Func" && parameterType.ReturnType.GenericArguments.Count > 0)
{
return(visitor.CreateResult(parameterType.ReturnType.GenericArguments[0]));
}
}
}
return(result);
}
if (lambdaExpression.Parent is ObjectCreateExpression)
{
ObjectCreateExpression objectCreateExpression = (ObjectCreateExpression)lambdaExpression.Parent;
int index = objectCreateExpression.Parameters.IndexOf(lambdaExpression);
if (index < 0)
{
return(null);
}
MemberResolveResult resolvedCreateExpression = visitor.Resolve(objectCreateExpression) as MemberResolveResult;
if (resolvedCreateExpression != null)
{
IMethod method = resolvedCreateExpression.ResolvedMember as IMethod;
if (method != null && index < method.Parameters.Count)
{
return(new ParameterResolveResult(method.Parameters[index]));
}
else
{
return(null);
}
}
}
return(null);
}