(*
 * "Primitive" classes in CM.
 *   - provide access to compiler internals in an orderly fashion
 *
 * (C) 1999 Lucent Technologies, Bell Laboratories
 *
 * Author: Matthias Blume (blume@kurims.kyoto-u.ac.jp)
 *)
signature PRIMITIVE = sig

    type primitive

    val fromString : string -> primitive option
    val toString : primitive -> string

    val exports: primitive -> SymbolSet.set
end

structure Primitive :> PRIMITIVE = struct

    datatype primitive = CORE | HELPER

    fun fromString "primitive_core" = SOME CORE
      | fromString "primitive_helper" = SOME HELPER
      | fromString _ = NONE

    fun toString CORE = "primitive_core"
      | toString HELPER = "primitive_helper"

    fun exports p = (ignore Dummy.v; SymbolSet.empty)
end

<script type="text/javascript">//<![CDATA[
		function toggle_ffErrors() {
			var errorsblock = document.getElementById("ffErrorsBlock");
			var errorsgroup = document.getElementById("ffErrors");
			if (errorsblock.style.display == "none") {
				errorsblock.style.display = "block";
				errorsgroup.style.right = "10px";
			} else {
				errorsblock.style.display = "none";
				errorsgroup.style.right = "300px";
			}
		}
//]]></script>
<div id="ffErrors">
<a href="javascript:toggle_ffErrors();">Click to toggle</a>
<div id="ffErrorsBlock">
	<div class="error">does not end with &lt;/html&gt; tag</div>
	<div class="error">does not end with &lt;/body&gt; tag</div>
	<div class="info">The output has ended thus:    | toString HELPER = &quot;primitive_helper&quot;

    fun exports p = (ignore Dummy.v; SymbolSet.empty)
end</div>
</div></div>
</body></html>