private static void WriteDiff(StreamWriter writer, DiffApiDefinition api, int level)
{
bool hasChildren = api.Children.Any();
string indent = new string(' ', level * 4);
string suffix = hasChildren ? " {" : string.Empty;
DifferenceType diff = api.Difference;
if (diff == DifferenceType.Changed)
{
// Let's see whether the syntax actually changed. For some cases the syntax might not
// diff, for example, when attribute declarations have changed.
string left = api.Left.GetCSharpDeclaration();
string right = api.Right.GetCSharpDeclaration();
if (string.Equals(left, right, StringComparison.OrdinalIgnoreCase))
{
diff = DifferenceType.Unchanged;
}
}
switch (diff)
{
case DifferenceType.Added:
WriteDiff(writer, "+", indent, suffix, api.Right);
break;
case DifferenceType.Removed:
WriteDiff(writer, "-", indent, suffix, api.Left);
break;
case DifferenceType.Changed:
WriteDiff(writer, "-", indent, suffix, api.Left);
WriteDiff(writer, "+", indent, suffix, api.Right);
break;
default:
WriteDiff(writer, " ", indent, suffix, api.Definition);
break;
}
if (hasChildren)
{
foreach (DiffApiDefinition child in api.Children)
{
WriteDiff(writer, child, level + 1);
}
var diffMarker = diff == DifferenceType.Added
? "+"
: diff == DifferenceType.Removed
? "-"
: " ";
writer.Write(diffMarker);
writer.Write(indent);
writer.WriteLine("}");
}
}
private void WriteDiffForNamespace(StreamWriter writer, DiffApiDefinition topLevelApi, bool isStandalone)
{
string heading = _createFilePerNamespace ? "#" : "##";
writer.WriteLine(heading + " " + topLevelApi.Name);
writer.WriteLine();
WriteDiff(writer, topLevelApi);
writer.WriteLine();
}
private void PushApi <T>(ElementMapping <T> elementMapping)
where T : class, IDefinition
{
var left = elementMapping[0];
var right = elementMapping.ElementCount == 1
? null
: elementMapping[1];
var difference = elementMapping.Difference;
var newChildren = new List <DiffApiDefinition>();
var apiDefinition = new DiffApiDefinition(left, right, difference, newChildren)
{
StartLine = _diffRecorder.Line
};
_apis.Add(apiDefinition);
_apiStack.Push(_apis);
_apiDefinitionStack.Push(apiDefinition);
_apis = newChildren;
}
private static void WriteDiff(StreamWriter writer, DiffApiDefinition topLevelApi)
{
writer.WriteLine("``` diff");
WriteDiff(writer, topLevelApi, 0);
writer.WriteLine("```");
}
