if path is an empty string (or a null), include file system is never called.
if path is any string (not even an existing path), then it is called.
Will PR a fix that allows empty path or null string, since in some cases my files are just scripts and have no location, so include handler should still be called.
found this (very small) issue when creating syntax tree with either null string and custom include resolver:
string path = null; var syntaxTree = SyntaxFactory.ParseSyntaxTree(new SourceFile(SourceText.From(code), path), null, myIncludeFileSystem);if path is an empty string (or a null), include file system is never called.
if path is any string (not even an existing path), then it is called.
Will PR a fix that allows empty path or null string, since in some cases my files are just scripts and have no location, so include handler should still be called.