Last tweaked by Mike Spreitzer on January 6, 1988 4:10:57 pm PST

ArgType: TYPE ~ {None, BiRel, Dir, EndBools, limit, RelOrder, RelOrderFN, remove, Set, SetPair, Side, Want3, When};

ArgTyping: TYPE ~ ARRAY [1 .. 2] OF ArgType;

What: TYPE ~ {l, r, b};

SortOp: TYPE ~ {asIs, reverse, sort};

EasySort: TYPE ~ SortOp[asIs .. reverse];

HalfCost: TYPE ~ RECORD [qs: PACKED ARRAY What OF ImplQuality ← ALL[primitive]];

Cost: TYPE ~ RECORD [a, b: HalfCost ← [], sort: SortCost ← ALL[asIs]];

SortCost: TYPE ~ PACKED ARRAY Side OF SortOp;

Family: TYPE ~ {Empty, EnumSetsTestBR, EnumBRTestSets, REnumBRTestSet, EnumSetImageTestSet};

SubFamily: TYPE ~ {apply, image, scanRestriction, full};

Algorithm: TYPE ~ RECORD [family: Family, s1: Side ← left, sub: SubFamily ← apply];

Analysis: TYPE ~ RECORD [alg: Algorithm, cost: Cost];

SideWhat: ARRAY Side OF What ~ [left: l, right: r];

AB: TYPE ~ {a, b};

PlanDefaultScanRestriction: PROC [br: BiRel, sets: SetPair, ro: RelOrder] RETURNS [can: BOOL, plan: Analysis];

}.