fixes #269

compiler/docgen.nim

@@ -145,6 +145,9 @@ proc isVisible(n: PNode): bool =
       var v = n.sons[0].ident
       result = v.id == ord(wStar) or v.id == ord(wMinus)
   elif n.kind == nkSym:
+    # we cannot generate code for forwarded symbols here as we have no
+    # exception tracking information here. Instead we copy over the comment
+    # from the proc header.
     result = {sfExported, sfFromGeneric, sfForward}*n.sym.flags == {sfExported}
   elif n.kind == nkPragmaExpr:
     result = isVisible(n.sons[0])

compiler/semstmts.nim

@@ -780,6 +780,8 @@ proc semProcAux(c: PContext, n: PNode, kind: TSymKind,
     n.sons[pragmasPos] = proto.ast.sons[pragmasPos]
     if n.sons[namePos].kind != nkSym: InternalError(n.info, "semProcAux")
     n.sons[namePos].sym = proto
+    if gCmd == cmdDoc and not isNil(proto.ast.comment):
+      n.comment = proto.ast.comment
     proto.ast = n             # needed for code generation
     popOwner()
     pushOwner(s)