Update

autoload/yats.vim

@@ -0,0 +1,20 @@
+if has_key(g:polyglot_is_disabled, 'typescript')
+  finish
+endif
+
+" Regex of syntax group names that are strings or documentation.
+let s:syng_multiline = 'comment\c'
+
+" Regex of syntax group names that are line comment.
+let s:syng_linecom = 'linecomment\c'
+
+" Check if the character at lnum:col is inside a multi-line comment.
+function yats#IsInMultilineComment(lnum, col)
+  return !s:IsLineComment(a:lnum, a:col) && synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_multiline
+endfunction
+
+" Check if the character at lnum:col is a line comment.
+function yats#IsLineComment(lnum, col)
+  return synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_linecom
+endfunction
+