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[smlnj] View of /sml/trunk/src/cm/depend/ggraph.sml
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View of /sml/trunk/src/cm/depend/ggraph.sml

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Revision 573 - (download) (annotate)
Thu Mar 9 15:23:52 2000 UTC (19 years, 5 months ago) by blume
File size: 1362 byte(s)
merging back changes from blume_devel_v110_26_2
 * Internal data structure representing a CM dependency graph.
 * (coarse-grain: groups)
 * (C) 1999 Lucent Technologies, Bell Laboratories
 * Author: Matthias Blume (blume@kurims.kyoto-u.ac.jp)
structure GroupGraph = struct

    type privileges = StringSet.set

    datatype kind =
	NOLIB of { owner: SrcPath.t option, subgroups: subgrouplist }
      | LIB of { wrapped: privileges, subgroups: subgrouplist }
      | STABLELIB of unit -> unit	(* pickle dropper *)

    (* the "required" field includes everything:
     *   1. privileges required by subgroups
     *   2. newly required privileges
     *   3. privileges that would be wrapped once the group is stabilized
    and group =
	GROUP of { exports: DependencyGraph.impexp SymbolMap.map,
		   kind: kind,
		   required: privileges,
		   grouppath: SrcPath.t,
		   sublibs: subgrouplist }

    withtype subgrouplist = (SrcPath.t * group) list
    (* Note: "sublibs" consists of (srcpath, group) pairs where
     * srcpath is equivalent -- but not necessarily identical -- to
     * the "grouppath" component of "group".  The group might have
     * been known before in which case "grouppath" would carry the
     * path that was used back then to refer to the group.  But for
     * the purpose of stabilization we must know the abstract path
     * that was used this time. *)

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