private static string GetClassNameFromPath(string path)
{
const string cshtmlExtension = ".cshtml";
if (string.IsNullOrEmpty(path))
{
return(path);
}
if (path.EndsWith(cshtmlExtension, StringComparison.OrdinalIgnoreCase))
{
path = path.Substring(0, path.Length - cshtmlExtension.Length);
}
return(CSharpIdentifier.SanitizeIdentifier(path));
}
// internal for testing.
//
// This code does a best-effort attempt to compute a namespace 'suffix' - the path difference between
// where the @namespace directive appears and where the current document is on disk.
//
// In the event that these two source either don't have FileNames set or don't follow a coherent hierarchy,
// we will just use the namespace verbatim.
internal static string GetNamespace(string source, DirectiveIntermediateNode directive)
{
var directiveSource = NormalizeDirectory(directive.Source?.FilePath);
var baseNamespace = directive.Tokens.FirstOrDefault()?.Content;
if (string.IsNullOrEmpty(baseNamespace))
{
// The namespace directive was incomplete.
return(string.Empty);
}
if (string.IsNullOrEmpty(source) || directiveSource == null)
{
// No sources, can't compute a suffix.
return(baseNamespace);
}
// We're specifically using OrdinalIgnoreCase here because Razor treats all paths as case-insensitive.
if (!source.StartsWith(directiveSource, StringComparison.OrdinalIgnoreCase) ||
source.Length <= directiveSource.Length)
{
// The imports are not from the directory hierarchy, can't compute a suffix.
return(baseNamespace);
}
// OK so that this point we know that the 'imports' file containing this directive is in the directory
// hierarchy of this soure file. This is the case where we can append a suffix to the baseNamespace.
//
// Everything so far has just been defensiveness on our part.
var builder = new StringBuilder(baseNamespace);
var segments = source.Substring(directiveSource.Length).Split(Separators);
// Skip the last segment because it's the FileName.
for (var i = 0; i < segments.Length - 1; i++)
{
builder.Append('.');
builder.Append(CSharpIdentifier.SanitizeIdentifier(segments[i]));
}
return(builder.ToString());
}