// there are two kind of attribute:
// 1) in lined : argument="some value"
// 2) <argument>
// <Expression ....../>
// </argument>
// here, for (1) return the source location of "some value".
// for (2) return null
private static SourceLocation GetInlineAttributeValueLocation(LineColumnPair startPoint, SourceTextScanner sourceTextScanner)
{
const char SingleQuote = '\'';
const char DoubleQuote = '"';
const char StartAngleBracket = '<';
Tuple <LineColumnPair, char> start = sourceTextScanner.SearchCharAfter(startPoint, SingleQuote, DoubleQuote, StartAngleBracket);
if (start == null)
{
return(null);
}
if (start.Item2 == StartAngleBracket)
{
return(null);
}
Tuple <LineColumnPair, char> end = sourceTextScanner.SearchCharAfter(start.Item1, start.Item2);
if (end == null)
{
SharedFx.Assert("end of SourceLocation is not found");
return(null);
}
return(new SourceLocation(null, start.Item1.LineNumber, start.Item1.ColumnNumber, end.Item1.LineNumber, end.Item1.ColumnNumber));
}
internal Tuple <LineColumnPair, char> SearchCharAfter(LineColumnPair startPoint, params char[] charsToSearch)
{
SharedFx.Assert(startPoint != null, "startPoint != null");
int line = startPoint.LineNumber - 1;
int column = startPoint.ColumnNumber - 1;
HashSet <char> charsToSearchSet = new HashSet <char>(charsToSearch);
int index = this.GetIndex(line, column);
if (index < 0)
{
return(null);
}
bool firstLoop = true;
foreach (Tuple <char, int> currentPair in this.Scan(index))
{
if (firstLoop)
{
firstLoop = false;
}
else
{
if (charsToSearchSet.Contains(currentPair.Item1))
{
LineColumnPair location = this.GetLocation(currentPair.Item2);
SharedFx.Assert(location != null, "invalid location");
return(Tuple.Create(location, currentPair.Item1));
}
}
}
return(null);
}
// For dynamic activity property, we needs to collect the source location of
// its default value when the value is inlined.
private KeyValuePair <string, SourceLocation> TransformDynamicActivityProperty(
XamlReader reader,
XamlObjectWriter objectWriter,
SourceTextScanner sourceTextScanner)
{
// (Number of SM -Number of EM) since SM DAP.Name is read.
// SO DAP ---nameReadingLevel=0
// SM NAME ---nameReadingLevel=1
// SO String ---nameReadingLevel=1
// SM Initialize ---nameReadingLevel=2
// VA StringValue ---nameReadingLevel=2
// EM ---nameReadingLevel=1
// SO ---nameReadingLevel=1
// EM ---nameReadingLevel=0
// EO ---nameReadingLevel=0
int nameReadingLevel = 0;
IXamlLineInfo lineInfo = (IXamlLineInfo)reader;
SourceLocation defaultValueLocation = null;
string propertyName = null;
while (reader.Read())
{
switch (reader.NodeType)
{
case XamlNodeType.StartMember:
if (nameReadingLevel > 0 ||
reader.Member == this.dynamicActivityPropertyNameMember)
{
++nameReadingLevel;
}
else if (reader.Member == this.dynamicActivityPropertyValueMember)
{
LineColumnPair startPoint = new LineColumnPair(lineInfo.LineNumber, lineInfo.LinePosition);
defaultValueLocation = GetInlineAttributeValueLocation(startPoint, sourceTextScanner);
}
break;
case XamlNodeType.EndMember:
if (nameReadingLevel > 0)
{
--nameReadingLevel;
}
break;
case XamlNodeType.Value:
if (nameReadingLevel > 0)
{
propertyName = reader.Value as string;
}
break;
}
objectWriter.WriteNode(reader);
}
if (propertyName != null && defaultValueLocation != null)
{
return(new KeyValuePair <string, SourceLocation>(propertyName, defaultValueLocation));
}
return(new KeyValuePair <string, SourceLocation>());
}
