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[smlnj] View of /sml/branches/primop-branch-gkuan/cm/bootstrap/cmb-slave-stub.sml
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View of /sml/branches/primop-branch-gkuan/cm/bootstrap/cmb-slave-stub.sml

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Revision 2787 - (download) (annotate)
Sat Sep 29 05:18:54 2007 UTC (13 years, 6 months ago) by gkuan
File size: 813 byte(s)
Creating private branch of sml/branches/primop-branch-3 for experimental Translate rewrite
 * This is a stub providing "slave" functionality for CMB.
 * (We use dynamic linking technology to avoid loading the target compiler
 *  on the slave side unless it is really needed.)
 * (C) 1999 Lucent Technologies, Bell Laboratories
 * Author: Matthias Blume (blume@kurims.kyoto-u.ac.jp)
structure CMBSlave = struct
	val loaded = ref StringSet.empty (* remember what we already have *)
	fun slave load arch s = let
	    val lib = concat ["$smlnj/cmb/", arch, ".cm"]
	    (* eg. sparc-unix -> $smlnj/cmb/sparc-unix.cm *)
	    if StringSet.member (!loaded, lib) then ()
	    else if load lib then loaded := StringSet.add (!loaded, lib)
	    else  raise Fail (concat ["dynamic linkage for CMB slave ",
				      arch, " failed"]);
	    CMBSlaveHook.slave arch s

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