private void TestParseUnaryExp(Func <string, NativeXUnaryExpression> parser)
{
{
NativeXExpression e = parser("++--&*-!~a++--");
{
string[] operators = { "++", "--", "&", "*", "-", "!", "~" };
foreach (string op in operators)
{
NativeXUnaryExpression unary = (NativeXUnaryExpression)e;
Assert.AreEqual(op, unary.Operator);
e = unary.Operand;
}
}
{
string[] operators = { "--", "++" };
foreach (string op in operators)
{
NativeXPostUnaryExpression unary = (NativeXPostUnaryExpression)e;
Assert.AreEqual(op, unary.Operator);
e = unary.Operand;
}
}
{
Assert.AreEqual("a", ((NativeXReferenceExpression)e).ReferencedName);
}
}
}
public Tuple <XDocument, TextPosition> OnGetQuickInfoTooltip()
{
if (this.EditingObserverExtension.EditingNode != null &&
this.EditingObserverExtension.EditingNode.Scope != null
)
{
var editingNode = this.EditingObserverExtension.EditingNode;
TextPosition pos = this.EditingObserverExtension.NodePositionToEditing(this.Callback.TextEditorBox.SelectionCaret);
NativeXNode node = editingNode.FindDeepest <NativeXNode>(pos);
if (node != null)
{
NativeXInvokeExpression invoke = (node as NativeXInvokeExpression) ?? node.FindParent <NativeXInvokeExpression>();
while (invoke != null && invoke.Function != null)
{
TextPosition start = invoke.Function.End;
TextPosition end = this.EditingObserverExtension.CodePositionToEditing(this.Callback.TextEditorBox.SelectionCaret);
if (!this.EditingObserverExtension.IsTemporaryEditingNode)
{
start = this.EditingObserverExtension.CodePositionToEditing(start);
}
if (start < end)
{
string inside = this.EditingObserverExtension.EditingNodeCode.GetString(start, end);
int openCount = inside.Where(c => c == '(').Count();
int closeCount = inside.Where(c => c == ')').Count();
if (openCount > closeCount)
{
break;
}
}
invoke = invoke.FindParent <NativeXInvokeExpression>();
}
if (invoke != null && invoke.Function != null)
{
NativeXExpression function = invoke.Function;
int index = 0;
if (invoke.Arguments != null)
{
for (int i = 0; i < invoke.Arguments.Count; i++)
{
NativeXNode argument = invoke.Arguments[i];
if (argument != null && argument.Start <= pos && pos <= argument.End)
{
index = i;
break;
}
else
{
index = Math.Min(index + 1, invoke.Arguments.Count - 1);
}
}
}
Tuple <string, string, string> info = function.GetFormattedFunctionQuickInfo(index);
if (!string.IsNullOrEmpty(info.Item1 + info.Item2 + info.Item3))
{
var content = new RichContent.Content(
new RichContent.Text(info.Item1),
new RichContent.Bold(new RichContent.Text(info.Item2)),
new RichContent.Text(info.Item3)
);
return(Tuple.Create <XDocument, TextPosition>(content, this.EditingObserverExtension.NodePositionToGlobal(invoke.Start)));
}
}
}
}
return(null);
}