protected ILookupItem GetLookupElement(string replace, TextLookupRanges ranges)
{
var info = new TextualInfo(replace, replace)
{
ReplaceText = replace, Ranges = ranges
};
var item = LookupItemFactory.CreateLookupItem(info)
.WithPresentation(_ => new TextPresentation <TextualInfo>(info))
.WithBehavior(_ => new TextualBehavior <TextualInfo>(info))
.WithMatcher(_ => new TextualMatcher <TextualInfo>(info));
return(item);
}
private static LookupItem <TextualInfo> CreateLookupItem([NotNull] IMethodDeclaration methodDeclaration, [NotNull] CSharpCodeCompletionContext context)
{
var typeParameterName = GetTypeParameterName(methodDeclaration);
var textualInfo = new TextualInfo(typeParameterName, typeParameterName, context.BasicContext)
{
Ranges = context.CompletionRanges
};
var lookupItem = LookupItemFactory.CreateLookupItem(textualInfo)
.WithPresentation(item =>
{
var presentation = new PostfixTemplatePresentation(typeParameterName);
var grayText = TextStyle.FromForeColor(Color.Gray);
presentation.DisplayName.Append("*", grayText);
presentation.DisplayTypeName = new RichText("(create type parameter)", grayText);
return(presentation);
})
.WithMatcher(item => new TextualMatcher <TextualInfo>(item.Info, IdentifierMatchingStyle.Default))
.WithBehavior(item => new TypeParameterFromUsageBehavior(item.Info));
return(lookupItem);
}
private ILookupItem CreateMethodItem(CSharpCodeCompletionContext context,
UnityEventFunction eventFunction, IClassLikeDeclaration declaration,
bool hasReturnType, AccessRights accessRights)
{
if (CSharpLanguage.Instance == null)
{
return(null);
}
// Only show the modifier in the list text if it's not already specified and there isn't a return type, in
// which case we default to `private`. E.g. if someone types `OnAnim`, then show `private void OnAnimate...`
// but if they type `void OnAnim`, they don't want a modifier, and if they type `public void OnAnim` then
// they want to use `public`
var showModifier = false;
if (!hasReturnType && accessRights == AccessRights.NONE)
{
showModifier = true;
accessRights = AccessRights.PRIVATE;
}
// Note that we can't keep this declaration - it will become invalid as the user types to narrow down the
// search and modifies the PSI file. This only affects ReSharper, Rider has different code completion
// mechanism
var factory = CSharpElementFactory.GetInstance(declaration, false);
var methodDeclaration = eventFunction.CreateDeclaration(factory, declaration, accessRights);
if (methodDeclaration.DeclaredElement == null)
{
return(null);
}
// This is effectively the same as GenerateMemberPresentation, but without the overhead that comes
// with the flexibility of formatting any time of declared element. We just hard code the format
var predefinedType = context.PsiModule.GetPredefinedType();
var parameters = string.Empty;
if (eventFunction.Parameters.Length > 0)
{
var sb = new StringBuilder();
for (var i = 0; i < eventFunction.Parameters.Length; i++)
{
if (i > 0)
{
sb.Append(", ");
}
var parameter = eventFunction.Parameters[i];
var type = predefinedType.TryGetType(parameter.ClrTypeName, NullableAnnotation.Unknown);
var typeName = type?.GetPresentableName(CSharpLanguage.Instance) ??
parameter.ClrTypeName.ShortName;
sb.AppendFormat("{0}{1}{2}", parameter.IsByRef ? "out" : string.Empty,
typeName, parameter.IsArray ? "[]" : string.Empty);
}
parameters = sb.ToString();
}
var text = $"{eventFunction.Name}({parameters})";
var parameterOffset = eventFunction.Name.Length;
var modifier = showModifier
? CSharpDeclaredElementPresenter.Instance.Format(accessRights) + " "
: string.Empty;
var psiIconManager = context.BasicContext.LookupItemsOwner.Services.PsiIconManager;
// Note that because this is a text based lookup item, then it won't be included if the normal C# method
// filter is applied. We can't make it a method based lookup item because the DeclaredElement isn't valid in
// this situation - it's not a real method, and a DeclaredElementInfo would try to store a pointer to it,
// and be unable to recreate it when it's needed.
var textualInfo = new TextualInfo(text, text)
{
Ranges = context.CompletionRanges
};
var lookupItem = LookupItemFactory.CreateLookupItem(textualInfo)
.WithPresentation(item =>
{
var displayName = new RichText($"{modifier}{text} {{ ... }}");
// GenerateMemberPresentation marks everything as bold, and the parameters + block syntax as not important
var parameterStartOffset = modifier.Length + parameterOffset;
LookupUtil.MarkAsNotImportant(displayName,
TextRange.FromLength(parameterStartOffset, displayName.Length - parameterStartOffset));
LookupUtil.AddEmphasize(displayName, new TextRange(modifier.Length, displayName.Length));
var image = psiIconManager.GetImage(CLRDeclaredElementType.METHOD);
psiIconManager.AttachExtensions(image, GetAccessExtensions(accessRights));
var marker = item.Info.Ranges.CreateVisualReplaceRangeMarker();
return(new SimplePresentation(displayName, image, marker));
})
.WithBehavior(_ => new UnityEventFunctionBehavior(myShellLocks, textualInfo, eventFunction, accessRights))
.WithMatcher(_ =>
new ShiftedDeclaredElementMatcher(eventFunction.Name, modifier.Length, textualInfo));
var description = GetDescription(context, methodDeclaration);
return(new WrappedLookupItem(lookupItem, description));
}
