DIRECTORY AMBridge, Asserting, Basics, Convert, InterpreterOps, IO, LichenArrayStuff, Collections, LichenDataOps, LichenDataStructure, PairCollections, LichenPrinting, List, Rope, RopeHash, StructuredStreams, SymTab, UnparserBuffer, ViewerIO;

LichenDataImpl: CEDAR PROGRAM
IMPORTS Asserting, IO, LichenArrayStuff, Collections, LichenDataStructure, PairCollections, LichenPrinting, List, Rope, RopeHash, StructuredStreams, UnparserBuffer, ViewerIO
EXPORTS LichenDataStructure, LichenDataOps
=

BEGIN OPEN LichenDataStructure, LichenArrayStuff, Colls:Collections, PairColls:PairCollections, SS:StructuredStreams, UB:UnparserBuffer;

nyet: PUBLIC ERROR = CODE;
Warning: PUBLIC SIGNAL [msg: ROPE _ NIL, v1, v2, v3, v4, v5: REF ANY _ NIL] = CODE;
Error: PUBLIC ERROR [msg: ROPE, v1, v2, v3, v4, v5: REF ANY _ NIL] = CODE;

nameReln: PUBLIC ATOM _ $LichenName;
partsByNameKey: PUBLIC ATOM _ $LichenNameToPart;

Escape: ERROR = CODE;

nameStepSpace: PUBLIC Colls.Space _ NEW [Colls.SpacePrivate _ [
Equal: StepEqual,
Hash: StepHash,
Compare: StepCompare,
other: List.PutAssoc[key: $Name, val: "name steps", aList: NIL]
]];

StepEqual: PROC [data: REF ANY, elt1, elt2: Colls.Value] RETURNS [BOOL] ~ {
WITH elt1 SELECT FROM
x: REF INT => WITH elt2 SELECT FROM
y: REF INT => RETURN [x^ = y^];
y: ROPE => RETURN [FALSE];
ENDCASE => ERROR;
x: ROPE => WITH elt2 SELECT FROM
y: REF INT => RETURN [FALSE];
y: ROPE => RETURN [x.Equal[y]];
ENDCASE => ERROR;
ENDCASE => ERROR;
};

StepHash: PROC [data: REF ANY, elt: Colls.Value] RETURNS [CARDINAL] ~ {
WITH elt SELECT FROM
x: REF INT => RETURN Colls.HashIntI[x^];
x: ROPE => RETURN [RopeHash.FromRope[rope: x]];
ENDCASE => ERROR;
};

StepCompare: PROC [data: REF ANY, elt1, elt2: Colls.Value] RETURNS [Basics.Comparison] ~ {
WITH elt1 SELECT FROM
x: REF INT => WITH elt2 SELECT FROM
y: REF INT => RETURN [Colls.CompareIntI[x^, y^]];
y: ROPE => RETURN [less];
ENDCASE => ERROR;
x: ROPE => WITH elt2 SELECT FROM
y: REF INT => RETURN [greater];
y: ROPE => RETURN [x.Compare[y]];
ENDCASE => ERROR;
ENDCASE => ERROR;
};

steppyNameSpace: PUBLIC Colls.Space _ NEW [Colls.SpacePrivate _ [
Equal: EqualSteppyNames,
Hash: HashSteppyName,
Compare: CompareSteppyNames,
other: List.PutAssoc[$Name, "steppy names", NIL],
data: NIL]];

EqualSteppyNames: PROC [data: REF ANY, elt1, elt2: REF ANY] RETURNS [BOOL] ~ {
n1: SteppyName ~ NARROW[elt1];
n2: SteppyName ~ NARROW[elt2];
RETURN SteppyNameEqual[n1, n2]};

SteppyNameEqual: PUBLIC PROC [n1, n2: SteppyName, clip1, clip2: SteppyName _ NIL] RETURNS [BOOL] ~ {
WHILE n1#clip1 AND n2#clip2 DO
WITH n1.first SELECT FROM
x: ROPE => WITH n2.first SELECT FROM
y: ROPE => IF NOT x.Equal[y] THEN RETURN [FALSE];
y: REF INT => RETURN [FALSE];
ENDCASE => ERROR;
x: REF INT => WITH n2.first SELECT FROM
y: ROPE => RETURN [FALSE];
y: REF INT => IF x^#y^ THEN RETURN [FALSE];
ENDCASE => ERROR;
ENDCASE => ERROR;
n1 _ n1.rest;
n2 _ n2.rest;
ENDLOOP;
RETURN [(n1=clip1) = (n2=clip2)]};

HashSteppyName: PROC [data: REF ANY, elt: REF ANY] RETURNS [hash: CARDINAL _ 0] ~ {
n: SteppyName _ NARROW[elt];
FOR n _ n, n.rest WHILE n#NIL DO
hash _ hash + (WITH n.first SELECT FROM
x: ROPE => RopeHash.FromRope[x],
x: REF INT => Colls.HashIntI[x^],
ENDCASE => ERROR);
ENDLOOP;
RETURN};

CompareSteppyNames: PROC [data: REF ANY, elt1, elt2: REF ANY] RETURNS [Basics.Comparison] ~ {
n1: SteppyName ~ NARROW[elt1];
n2: SteppyName ~ NARROW[elt2];
len1, len2: NATURAL;
gend1, gend2, glob1, glob2: BOOL;
last1, last2: ROPE;
[len1, gend1, glob1, last1] _ Grade[n1];
[len2, gend2, glob2, last2] _ Grade[n2];
RETURN [SELECT TRUE FROM
glob1<glob2 => greater,
glob1>glob2 => less,
gend1<gend2 => less,
gend1>gend2 => greater,
len1<len2 => less,
len1>len2 => greater,
ENDCASE => SELECT last2.Length[]-last1.Length[] FROM
>0 => less,
<0 => greater,
ENDCASE => last1.Compare[last2]];
};

Grade: PROC [name: SteppyName] RETURNS [length: NATURAL _ 0, gend: BOOL _ TRUE, glob: BOOL _ FALSE, last: ROPE _ NIL] ~ {
FOR name _ name, name.rest WHILE name#NIL DO
length _ length+1;
WITH name.first SELECT FROM
x: ROPE => {
xLen: INT ~ x.Length;
last _ x;
gend _ FALSE;
IF x.Fetch[xLen-1]='! THEN glob _ TRUE ELSE {
FOR i: INT IN [0 .. xLen) DO
SELECT x.Fetch[i] FROM
IN ['a .. 'z], IN ['A .. 'Z], IN ['0 .. '9], '_, '-, '', '~ => NULL;
ENDCASE => {gend _ TRUE; EXIT};
ENDLOOP;
};
};
x: REF INT => NULL;
ENDCASE => ERROR;
ENDLOOP;
IF length=0 THEN length _ NATURAL.LAST;
RETURN};

listClass: PUBLIC Colls.CollectionClass _ Colls.CreateList[vals: NIL, space: steppyNameSpace, mayDuplicate: FALSE, orderStyle: value].class;

CreateSteppyNames: PUBLIC PROC [names: LORA--actually LIST OF SteppyName-- _ NIL] RETURNS [ListData] ~ {
set: Set ~ Colls.CreateList[vals: names, space: steppyNameSpace, mayDuplicate: FALSE, orderStyle: value];
IF set.class#listClass THEN ERROR;
RETURN [set.data]};

endOfQ: PUBLIC Vertex _ NEW [VertexPrivate.intermediate];

WireIndex: PUBLIC PROC [parent, child: Wire] RETURNS [index: INT] = {
index _ 0;
FOR x: Wire _ parent.firstChild, x.next WHILE x # child DO index _ index + 1 ENDLOOP;
RETURN};

SubWire: PUBLIC PROC [parent: Wire, index: INT] RETURNS [child: Wire] = {
FOR child _ parent.firstChild, child.next WHILE index > 0 DO index _ index - 1 ENDLOOP;
RETURN};

PortCCT: PUBLIC PROC [port: Port] RETURNS [containingCT: CellType] = {
DO
WITH port.parent SELECT FROM
ct: CellType => RETURN [ct];
p: Port => port _ p;
ENDCASE => ERROR;
ENDLOOP;
};

PortIndex: PUBLIC PROC [child: Port] RETURNS [index: INT] = {
index _ 0;
FOR x: Port _ NARROW[child.parent, Port].firstChild, x.next WHILE x # child DO index _ index + 1 ENDLOOP;
RETURN};

SubPort: PUBLIC PROC [parent: Port, index: INT] RETURNS [child: Port] = {
FOR child _ parent.firstChild, child.next WHILE index > 0 DO index _ index - 1 ENDLOOP;
RETURN};

portToInternalWire: PUBLIC UWFunction ~ PairColls.FnFromProc[MapPortToInternalWire].AsUW;

MapPortToInternalWire: PROC [data: REF ANY, v: Colls.Value] RETURNS [Colls.MaybeValue] ~ {
port: Port ~ NARROW[v];
RETURN [[port.wire#NIL, port.wire]];
};

EnsureAllIn: PUBLIC PROC [design: Design] = {
IF design.allKnown THEN RETURN;
design.allKnown _ TRUE;
EnumerateCellTypes[design, EnsurePrivate];
};

EnsurePublic: PUBLIC PROC [ct: CellType] = {
IF NOT ct.publicKnown THEN ERROR Error["Broken: Found cell type with undefined interface"];
IF ct.port = NIL THEN ERROR;
};

EnsurePrivate: PUBLIC PROC [ct: CellType] = {
IF NOT ct.privateKnown THEN {
ct.class.DefinePrivates[ct];
IF NOT ct.privateKnown THEN ERROR;
};
};

ExpansionKnown: PUBLIC PROC [ct: CellType] RETURNS [known: BOOL] = {
known _ ct.asUnorganized # NIL OR ct.asArray # NIL;
};

NoteChange: PUBLIC PROC [cellType: CellType] = {
NULL--er, we haven't yet figured out just what to do about the fact that cell types can change--;
};

AddPort: PUBLIC PROC [p: PortPrivate _ []] RETURNS [port: Port] = {
port _ NEW [PortPrivate _ p];
WITH p.parent SELECT FROM
pp: Port => {
port.next _ NIL;
port.prev _ pp.lastChild;
pp.lastChild _ port;
IF port.prev # NIL THEN port.prev.next _ port ELSE pp.firstChild _ port;
IF (port.names=NIL OR port.PortNames.Size=0) AND port.wire#NIL THEN port.names _ port.wire.VertexNames.Copy.data;
};
ct: CellType => {
IF ct.port # NIL THEN ERROR;
ct.port _ port;
port.next _ port.prev _ NIL;
IF port.names=NIL THEN port.names _ CreateSteppyNames[];
[] _ port.PortNames.AddElt[LIST[BeRope["PORTS"]]];
};
ENDCASE => ERROR;
};

ActualName: PROC [instanceName, portName: SteppyName] RETURNS [actualName: SteppyName] ~ {
lastRope: ROPE _ NIL;
FOR l: SteppyName _ portName, l.rest WHILE l#NIL DO
WITH l.first SELECT FROM
x: ROPE => lastRope _ x;
x: REF INT => NULL;
ENDCASE => ERROR;
ENDLOOP;
IF lastRope.Fetch[lastRope.Length-1]='! THEN RETURN [portName];
actualName _ List.Append[instanceName, portName];
RETURN};

FullyAddPort: PUBLIC PROC [p: PortPrivate _ [], andReportConnectionTo: CellInstance _ NIL] RETURNS [port: Port, connection: Wire _ NIL] = {
ct: CellType = PortCCT[port _ AddPort[p]];
portName: SteppyName ~ SteppyDescribe[port, ct.port];
FixInstance: PROC [ci: CellInstance] = {
instanceName: SteppyName ~ SteppyDescribe[ci, ci.containingCT];
wireName: SteppyName ~ ActualName[instanceName, portName];
w: Wire = CreateWire[ci.containingCT, NIL, CreateSteppyNames[LIST[wireName]]];
AddEdge[[cellward: ci, wireward: w], port];
IF andReportConnectionTo = ci THEN connection _ w;
};
FixArray: PROC [act: CellType] ~ {NoteNewEltPort[act.asArray, port]};
IF ct.asUnorganized # NIL THEN {
IF ct.asUnorganized.mirror = NIL THEN ERROR;
IF p.wire = NIL THEN ERROR;
AddEdge[[cellward: ct.asUnorganized.mirror, wireward: port.wire], port];
};
IF ct.asArray # NIL THEN {
NULL--we don't need to do anything--;
};
EnumerateInstances[ct, FixInstance, FALSE];
EnumerateArrays[ct, FixArray];
};

RemovePort: PUBLIC PROC [port: Port] = {
WITH port.parent SELECT FROM
pp: Port => {
IF port.next = NIL THEN pp.lastChild _ port.prev ELSE port.next.prev _ port.prev;
IF port.prev = NIL THEN pp.firstChild _ port.next ELSE port.prev.next _ port.next;
};
ct: CellType => {
ERROR --I don't think we ever really want to Remove the root port--;
};
ENDCASE => ERROR;
};

AddEdge: PUBLIC PROC [vs: ARRAY GraphDirection OF Vertex, port: Port] = {
e: Edge = NEW [EdgePrivate _ [port: port]];
FOR dir: GraphDirection IN GraphDirection DO e.sides[dir].v _ vs[dir] ENDLOOP;
FOR side: GraphDirection IN GraphDirection DO
LinkEdge[vs[side], e, side];
port _ port;
ENDLOOP;
RETURN};

LinkEdge: PROC [v: Vertex, e: Edge, side: GraphDirection] = {
prev, next: Edge;
prevSide: GraphDirection;
SELECT side FROM --we have to choose position carefully to satisfy AI1
cellward => {
IF e.port.prev # NIL THEN {
prev _ FindImmediateEdge[v, e.port.prev, backward].e;
IF prev=NIL THEN ERROR--we only implement AddEdge in increasing port order--;
IF prev.sides[prevSide _ cellward].v#v THEN ERROR Error["Broken"];
}
ELSE IF v.firstEdge=NIL OR v.firstEdge.sides[cellward].v=v THEN prev _ NIL
ELSE {
FOR prev _ v.lastEdge, prev.sides[cellward].prev UNTIL prev.sides[wireward].v=v DO
IF prev.sides[cellward].v#v THEN ERROR Error["Broken"];
ENDLOOP;
prevSide _ wireward};
};
wireward => prev _ NIL;
ENDCASE => ERROR;
e.sides[side].next _ next _ IF prev # NIL THEN prev.sides[prevSide].next ELSE v.firstEdge;
e.sides[side].prev _ prev;
IF prev=NIL THEN v.firstEdge _ e ELSE prev.sides[prevSide].next _ e;
IF next=NIL THEN v.lastEdge _ e ELSE next.sides[next.SideFor[v]].prev _ e;
RETURN};

AddEdges: PUBLIC PROC [vs: ARRAY GraphDirection OF Vertex, port: Port] = {
rootPort: Port = WITH vs[cellward] SELECT FROM
ci: CellInstance => ci.type.port,
im: Intermediary => im.port,
w: Wire => ERROR Error["Broken"],
ENDCASE => ERROR;
FindVertex: PROC [port: Port] RETURNS [v: Vertex] = {
cellward: Vertex;
IF port = rootPort THEN RETURN [vs[cellward]];
cellward _ FindVertex[NARROW[port.parent]];
v _ FindImmediateConnection[cellward, port];
IF v # NIL THEN RETURN;
v _ CreateIntermediary[cellward, wireward, cellward.containingCT, port, port.PortNames.Copy.data];
RETURN};
immediatelyCellward: Vertex = FindVertex[NARROW[port.parent]];
AddEdge[[cellward: immediatelyCellward, wireward: vs[wireward]], port];
RETURN};

RemoveEdge: PUBLIC PROC [e: Edge] = {
e _ e;
FOR dir: GraphDirection IN GraphDirection DO
next: Edge ~ e.sides[dir].next;
prev: Edge ~ e.sides[dir].prev;
v: Vertex ~ e.sides[dir].v;
IF next#NIL THEN next.sides[SideFor[next, v]].prev _ prev ELSE v.lastEdge _ prev;
IF prev#NIL THEN prev.sides[SideFor[prev, v]].next _ next ELSE v.firstEdge _ next;
ENDLOOP;
RETURN};

RemoveEdges: PUBLIC PROC [e: Edge] = {
cellward: Vertex = e.sides[cellward].v;
RemoveEdge[e];
IF ISTYPE[cellward, Intermediary] AND (cellward.lastEdge = NIL OR cellward.lastEdge.sides[wireward].v = cellward--AI1 used here--) THEN DeleteVertex[cellward];
RETURN};

UnlinkPort: PUBLIC PROC [ci: CellInstance, port: Port] = {
RemoveEdge[FindImmediateEdge[ci, port].e]; RETURN};

UnlinkPorts: PUBLIC PROC [ci: CellInstance, ports: ConstSet--of Port--] ~ {
n: NATURAL ~ ports.Size[];
i: NATURAL _ 0;
Work: PROC [port: Port, v: Vertex, e: Edge] ~ {
IF port=NIL THEN ERROR;
IF ports.HasMember[port] THEN {
RemoveEdges[e];
i _ i + 1;
IF i=n THEN Escape;
}
ELSE SELECT v.class FROM
cell => ERROR;
intermediate => EnumerateImmediateEdges[v, Work, [cellward: FALSE, wireward: TRUE]];
wire => NULL;
ENDCASE => ERROR;
RETURN};
EnumerateImmediateEdges[ci, Work !Escape => CONTINUE];
IF i#n THEN ERROR;
RETURN};

Instantiate: PUBLIC PROC [type, containingCT: CellType, names: ListData _ NIL, other: Assertions _ NIL] RETURNS [ci: CellInstance] = {
IF names=NIL THEN names _ CreateSteppyNames[];
ci _ NEW [VertexPrivate.cell _ [
containingCT: containingCT,
names: names,
other: other,
variant: cell[
type: type,
nextInstance: NIL,
prevInstance: type.lastInstance]]];
type.lastInstance _ ci;
IF ci.prevInstance # NIL THEN ci.prevInstance.nextInstance _ ci ELSE ci.type.firstInstance _ ci;
type.useCount _ type.useCount + 1;
[] _ containingCT.asUnorganized.containedInstances.AddElt[ci];
IndexVertexNames[ci];
RETURN};

EnumeratePortsForWire: PUBLIC PROC [w: Wire, Consume: PROC [Port]]= {
See: PROC [p: Port, v: Vertex] = {
IF IsMirror[NARROW[v]] THEN Consume[p];
RETURN};
w.EnumerateTransitiveConnections[See];
w _ w;
RETURN};

EnumerateParts: PUBLIC PROC [ct: CellType, Consume: PROC [Vertex], mirrorToo: BOOL] ~ {
u: Unorganized ~ ct.asUnorganized;
PerCell: PROC [ra: REF ANY] ~ {
ci: CellInstance ~ NARROW[ra];
PassIMs: PROC [p: Port, v: Vertex] ~ {
WITH v SELECT FROM
ci: CellInstance => ERROR;
w: Wire => NULL;
im: Intermediary => {
Consume[im];
EnumerateImmediateConnections[im, PassIMs, [cellward: FALSE, wireward: TRUE]];
};
ENDCASE => ERROR;
RETURN};
Consume[ci];
EnumerateImmediateConnections[ci, PassIMs];
RETURN};
PassChildren: PROC [w: Wire] ~ {
FOR w _ FirstChildWire[w], NextChildWire[w] WHILE w # NIL DO
Consume[w];
PassChildren[w];
ENDLOOP;
RETURN};
IF u=NIL THEN ERROR;
PassChildren[u.internalWire];
u.containedInstances.Enumerate[PerCell];
IF mirrorToo THEN PerCell[u.mirror];
RETURN};

PortForWire: PUBLIC PROC [ct: CellType, internal: Wire, ci: CellInstance, mayAdd: BOOL] RETURNS [port: Port, external: Wire] = {
See: PROC [p: Port, v: Vertex] = {
IF IsMirror[NARROW[v]] THEN port _ p;
RETURN};
IF internal.containingCT # ct THEN ERROR;
internal.EnumerateTransitiveConnections[See];
IF port = NIL THEN {
IF mayAdd THEN {
[port, external] _ FullyAddPort[
[parent: ct.port, wire: internal, names: CreateSteppyNames[LIST[SteppyDescribe[internal, ct.asUnorganized.internalWire]]]],
ci
];
};
}
ELSE IF ci # NIL THEN external _ FindTransitiveConnection[ci, port];
RETURN};

FullyInstantiate: PUBLIC PROC [type, containingCT: CellType, names: ListData _ NIL, other: Assertions _ NIL] RETURNS [ci: CellInstance] ~ {
ci _ Instantiate[type, containingCT, names, other];
{instanceName: SteppyName ~ SteppyDescribe[ci, ci.containingCT];
FOR port: Port _ type.port.FirstChildPort[], port.NextChildPort[] WHILE port # NIL DO
portName: SteppyName ~ SteppyDescribe[port, type.port];
wireName: SteppyName ~ ActualName[instanceName, portName];
w: Wire = CreateWire[ci.containingCT, NIL, CreateSteppyNames[LIST[wireName]]];
AddEdge[[cellward: ci, wireward: w], port];
ENDLOOP;
ci _ ci;
RETURN}};

CreateWire: PUBLIC PROC [containingCT: CellType, containingWire: Wire _ NIL, names: ListData _ NIL, other: Assertions _ NIL, copy: Wire _ NIL] RETURNS [w: Wire] = {
IF containingWire=NIL THEN containingWire _ containingCT.asUnorganized.internalWire;
IF names=NIL THEN names _ CreateSteppyNames[];
w _ NEW [VertexPrivate.wire _ [
containingCT: containingCT,
names: names,
other: other,
variant: wire[
containingWire: containingWire,
next: NIL,
prev: IF containingWire#NIL THEN containingWire.lastChild ELSE NIL
]]];
IF w.containingWire=NIL THEN [] _ w.VertexNames.AddElt[LIST[internalWireName]];
IF w.prev # NIL THEN w.prev.next _ w ELSE IF containingWire#NIL THEN containingWire.firstChild _ w;
IF containingWire#NIL THEN containingWire.lastChild _ w ELSE containingCT.asUnorganized.internalWire _ w;
IF copy # NIL THEN WireCopy[copy, w];
IndexVertexNames[w];
RETURN};
internalWireName: ROPE ~ "INTERNAL";

WireCopy: PROC [from, to: Wire] = {
IF to.VertexNames.Size[]=0 THEN to.names _ from.VertexNames.Copy.data;
FOR child: Wire _ from.FirstChildWire[], child.NextChildWire[] WHILE child # NIL DO
[] _ CreateWire[containingCT: to.containingCT, containingWire: to, copy: child];
ENDLOOP;
RETURN};

CreateIntermediary: PUBLIC PROC [from: Vertex, go: GraphDirection, containingCT: CellType, port: Port, names: ListData _ NIL, other: Assertions _ NIL] RETURNS [im: Intermediary] = {
vs: ARRAY GraphDirection OF Vertex _ ALL[from];
IF names=NIL THEN names _ CreateSteppyNames[];
vs[go] _ im _ NEW [VertexPrivate.intermediate _ [
containingCT: containingCT,
names: names,
other: other,
variant: intermediate[port]]];
AddEdge[vs, port];
IndexVertexNames[im];
RETURN};

IndexVertexNames: PUBLIC PROC [v: Vertex, names: Set _ Colls.nilColl] = {
ct: CellType = v.containingCT;
pbn: VarFunction = PairColls.DeRef[Asserting.FnVal[partsByNameKey, ct.otherPrivate]].AsVar;
top: BOOL ~ WITH v SELECT FROM
x: CellInstance => TRUE,
x: Intermediary => FALSE,
x: Wire => x.containingCT.asUnorganized.internalWire=x.containingWire,
ENDCASE => ERROR;
PerName: PROC [val: REF ANY] ~ {
name: SteppyName ~ NARROW[val];
SELECT pbn.Apply[name].val FROM
Colls.noValue => IF NOT pbn.Store[[name, v]] THEN ERROR;
v => NULL;
ENDCASE => ERROR;
};
IF pbn=PairColls.nilPairColl OR NOT top THEN RETURN;
IF names=Colls.nilColl THEN names _ v.VertexNames;
names.Enumerate[PerName];
RETURN};

UnindexVertexNames: PUBLIC PROC [v: Vertex] = {
ct: CellType = v.containingCT;
pbn: VarFunction = PairColls.DeRef[Asserting.FnVal[partsByNameKey, ct.otherPrivate]].AsVar;
top: BOOL ~ WITH v SELECT FROM
x: CellInstance => TRUE,
x: Intermediary => FALSE,
x: Wire => x.containingCT.asUnorganized.internalWire=x.containingWire,
ENDCASE => ERROR;
PerName: PROC [val: REF ANY] ~ {
name: SteppyName ~ NARROW[val];
SELECT pbn.Apply[name].val FROM
Colls.noValue => NULL;
v => IF NOT pbn.Delete[name] THEN ERROR;
ENDCASE => ERROR;
};
IF pbn=PairColls.nilPairColl OR NOT top THEN RETURN;
v.VertexNames.Enumerate[PerName];
RETURN};

CreateCellType: PUBLIC PROC [design: Design, cellTypeName: ROPE, class: CellClass, internals: BOOL, otherPublic, otherPrivate: Assertions _ NIL] RETURNS [ct: CellType] = {
pbn: VarFunction = PairColls.CreateHashFn[[steppyNameSpace, Colls.refs]];
ct _ NEW [CellTypePrivate _ [
class: class,
designs: Colls.CreateHashSet[],
publicKnown: TRUE,
privateKnown: TRUE,
otherPublic: otherPublic,
otherPrivate: otherPrivate
]];
IF cellTypeName#NIL THEN ct.otherPublic _ Asserting.Assert1[nameReln, cellTypeName, ct.otherPublic];
[] _ AddPort[[parent: ct]];
IF internals THEN {
iw: Wire;
ct.otherPrivate _ Asserting.AssertFn1[partsByNameKey, pbn.Refify, ct.otherPrivate];
ct.asUnorganized _ NEW [UnorganizedPrivate _ [
containedInstances: Colls.CreateHashSet[]
]];
iw _ CreateWire[ct];
IF ct.asUnorganized.internalWire # iw THEN ERROR;
AddMirror[ct];
};
[] _ design.cellTypes.AddElt[ct];
[] _ ct.designs.AddElt[design];
};

CreateArray: PUBLIC PROC [design: Design, cellTypeName: ROPE, class: CellClass, eltType: CellType, size2, basePeriod: Size2, otherPublic, otherPrivate: Assertions _ NIL] RETURNS [ct: CellType] = {
a: Array ~ CreateArrayRep[eltType, size2, basePeriod];
ct _ CreateCellType[design, cellTypeName, class, FALSE, otherPublic, otherPrivate];
ct.asArray _ a;
a.prevArray _ eltType.lastArray;
IF a.prevArray # NIL THEN a.prevArray.asArray.nextArray _ ct ELSE eltType.firstArray _ ct;
eltType.lastArray _ ct;
eltType.useCount _ eltType.useCount + 1;
};

KnowVertexName: PUBLIC PROC [v: Vertex, name: SteppyName] = {
ct: CellType = v.containingCT;
pbn: VarFunction = PairColls.DeRef[Asserting.FnVal[partsByNameKey, ct.otherPrivate]].AsVar;
top: BOOL ~ WITH v SELECT FROM
x: CellInstance => TRUE,
x: Intermediary => FALSE,
x: Wire => x.containingCT.asUnorganized.internalWire=x.containingWire,
ENDCASE => ERROR;
IF top AND pbn#PairColls.nilPairColl THEN {
SELECT pbn.Apply[name].val FROM
v => RETURN;
Colls.noValue => IF NOT pbn.Store[[name, v]] THEN ERROR;
ENDCASE => ERROR;
};
IF NOT v.VertexNames.AddElt[name] THEN ERROR;
RETURN};

ForgetVertexName: PUBLIC PROC [v: Vertex, name: SteppyName] = {
ct: CellType = v.containingCT;
pbn: VarFunction = PairColls.DeRef[Asserting.FnVal[partsByNameKey, ct.otherPrivate]].AsVar;
last: Assertions _ NIL;
next: Assertions _ v.other;
top: BOOL ~ WITH v SELECT FROM
x: CellInstance => TRUE,
x: Intermediary => FALSE,
x: Wire => x.containingCT.asUnorganized.internalWire=x.containingWire,
ENDCASE => ERROR;
IF top AND pbn#PairColls.nilPairColl THEN {
IF NOT pbn.Delete[name] THEN ERROR;
};
IF NOT v.VertexNames.RemoveElt[name] THEN ERROR;
RETURN};

DeleteVertex: PUBLIC PROC [v: Vertex] = {
ct: CellType = v.containingCT;
Killit: PROC [p: Port, w: Vertex, e: Edge] = {
dir: GraphDirection ~ e.SideFor[w];
IF dir=cellward THEN RemoveEdges[e] ELSE RemoveEdge[e];
WITH w SELECT FROM
ci: CellInstance => NULL;
im: Intermediary => IF dir=wireward THEN DeleteVertex[w];
wire: Wire => NULL;
ENDCASE => ERROR;
};
UnindexVertexNames[v];
EnumerateImmediateEdges[v, Killit];
WITH v SELECT FROM
ci: CellInstance => {
IF ci.nextInstance # NIL THEN ci.nextInstance.prevInstance _ ci.prevInstance ELSE ci.type.lastInstance _ ci.prevInstance;
IF ci.prevInstance # NIL THEN ci.prevInstance.nextInstance _ ci.nextInstance ELSE ci.type.firstInstance _ ci.nextInstance;
IF NOT v.containingCT.asUnorganized.containedInstances.RemoveElt[ci] THEN ERROR;
ci.type.useCount _ ci.type.useCount - 1;
};
im: Intermediary => NULL;
w: Wire => {
IF w.next # NIL THEN w.next.prev _ w.prev ELSE w.containingWire.lastChild _ w.prev;
IF w.prev # NIL THEN w.prev.next _ w.next ELSE w.containingWire.firstChild _ w.next;
};
ENDCASE => ERROR;
RETURN};

IsMirror: PUBLIC PROC [v: CellInstance] RETURNS [isMirror: BOOL] = {
isMirror _ v.type = v.containingCT;
};

AddMirror: PUBLIC PROC [lct: CellType] = {
CreateMirrorBinding: PROC [port: Port, cellward: Vertex] = {
FOR subPort: Port _ port.firstChild, subPort.next WHILE subPort # NIL DO
subVertex: Vertex;
IF subPort.wire # NIL THEN {
AddEdge[[cellward: cellward, wireward: subPort.wire], subPort]}
ELSE {
subVertex _ CreateIntermediary[cellward, wireward, lct, subPort, subPort.PortNames.Copy.data];
CreateMirrorBinding[subPort, subVertex];
}
ENDLOOP;
};
v: CellInstance = NEW [VertexPrivate.cell _ [
containingCT: lct,
names: CreateSteppyNames[LIST[LIST[BeRope["mirror"]]]],
variant: cell[type: lct--AM2 says not to link it--]
]];
lct.asUnorganized.mirror _ v;
CreateMirrorBinding[lct.port, v];
};

VarRefSeqAppend: PUBLIC PROC [vrs: VarRefSeq, value: REF ANY] = {
IF vrs.length = vrs.refs.length THEN {
oldRefs: RefSeq = vrs.refs;
vrs.refs _ CreateRefSeq[MAX[oldRefs.length*2, 1]];
FOR i: INT IN [0 .. oldRefs.length) DO
vrs.refs[i] _ oldRefs[i];
ENDLOOP;
};
vrs.refs[vrs.length] _ value;
vrs.length _ vrs.length + 1;
};

Choose2: PROC [n: INT] RETURNS [nChoose2: INT] = INLINE {
nChoose2 _ n*(n-1)/2};

PrintOnLog: PUBLIC PROC [ra: REF ANY] ~ {
OPEN LichenPrinting;
DO
ENABLE IO.Error => IF ec=StreamClosed THEN {log _ NIL; LOOP};
IF log = NIL THEN log _ ViewerIO.CreateViewerStreams["Lichen Debugging Log"].out;
{slog: IO.STREAM ~ SS.Create[UB.NewInittedHandle[[output: [stream[log]], margin: printWidth]]];
WITH ra SELECT FROM
x: Design => PrintDesign[slog, x];
x: CellType => PrintCellType[slog, x];
x: Port => PrintPort[slog, x];
x: Wire => PrintWire[slog, x];
x: CellInstance => PrintInstance[slog, x];
ENDCASE => ERROR;
slog.PutRope["\n"];
slog.Close[];
EXIT;
}ENDLOOP;
RETURN};

printWidth: INT _ 69;

Log: PUBLIC PROC [fmt: ROPE, args: LORA _ NIL] = {
head, tail, this: LIST OF IO.Value _ NIL;
FOR args _ args, args.rest WHILE args#NIL DO
this _ WITH args.first SELECT FROM
x: Design => LIST[[rope[Describe[x]]]],
x: CellType => LIST[[rope[Describe[x]]]],
x: Vertex => LIST[[rope[Describe[x]]]],
x: Port => LIST[[rope[Describe[x]]]],
x: PortList => LIST[[rope[FmtPortList[x]]]],
x: ROPE => LIST[[rope[x]]],
ENDCASE => LIST[[refAny[args.first]]];
IF tail=NIL THEN head _ this ELSE tail.rest _ this;
tail _ this;
ENDLOOP;
DO
ENABLE IO.Error => IF ec=StreamClosed THEN {log _ NIL; LOOP};
IF log = NIL THEN log _ ViewerIO.CreateViewerStreams["Lichen Debugging Log"].out;
log.PutFL[fmt, head];
EXIT;
ENDLOOP;
RETURN};
log: IO.STREAM _ NIL;

FmtPortList: PROC [pl: PortList] RETURNS [asRope: ROPE] ~ {
asRope _ NIL;
FOR pl _ pl, pl.rest WHILE pl#NIL DO
IF asRope#NIL THEN asRope _ asRope.Concat[", "];
asRope _ asRope.Concat[Describe[pl.first]];
ENDLOOP;
asRope _ Rope.Cat["{", asRope, "}"];
RETURN};

NewInt: PUBLIC PROC [i: INT] RETURNS [REF INT] ~ {
IF i IN [0 .. 64] THEN RETURN [intRefs[i]];
RETURN [NEW [INT _ i]]};

IntRefArray: TYPE ~ ARRAY [0 .. 64] OF REF INT;
intRefs: REF IntRefArray ~ NEW [IntRefArray _ ALL[NIL]];

Start: PROC ~ {
FOR i: INT IN [0 .. 64] DO intRefs[i] _ NEW [INT _ i] ENDLOOP;
RETURN};

Start[];

END.
\LichenDataImpl.Mesa
Last tweaked by Mike Spreitzer on October 20, 1987 6:56:23 pm PDT
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