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modified: ../../../../main/java/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java

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isInherited für ? extends wieder mit gleich gesetzt

	modified:   ../../../../main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
Variance = -1 und Oderconstraints Vererbung eingebaut
Variance = 0 min/max eingebaut
This commit is contained in:
pl@gohorb.ba-horb.de 2020-05-05 17:14:52 +02:00
parent 6deeb4105f
commit fd3d4e97a1
2 changed files with 56 additions and 14 deletions
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2
src/main/java/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java
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@ -183,7 +183,7 @@ public class TYPEStmt implements StatementVisitor{
!(x.TA2 instanceof TypePlaceholder))
? new Pair(x.TA1, new ExtendsWildcardType(x.TA2, x.TA2.getOffset()), PairOperator.EQUALSDOT)
: x)
.collect(Collectors.toCollection(() -> new Constraint<Pair>(true)));
.collect(Collectors.toCollection(() -> new Constraint<Pair>(oneMethodConstraint.isInherited())));
oneMethodConstraint.setExtendConstraint(extendsOneMethodConstraint);
extendsOneMethodConstraint.setExtendConstraint(oneMethodConstraint);
methodConstraints.add(extendsOneMethodConstraint);

62
src/main/java/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
View File

@ -633,8 +633,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
oderConstraint = true;
}
UnifyPair oderRec = null;
if (oderConstraint) {
if (oderConstraint) {//Varianz-Bestimmung Oder-Constraints
if (printtag) System.out.println("nextSetasList " + nextSetasList);
Optional<Integer> optVariance =
nextSetasList.iterator()
@ -662,9 +661,10 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
/* sameEqSet-Bestimmung: Wenn a = ty \in nextSet dann enthaelt sameEqSet alle Paare a < ty1 oder ty2 < a aus fstElems */
Set<UnifyPair> sameEqSet = new HashSet<>();
Optional<UnifyPair> optOrigPair = null;
//if (variance != 2) {
if (!oderConstraint) {
Optional<UnifyPair> optOrigPair = nextSetElem.stream().filter(x -> (
optOrigPair = nextSetElem.stream().filter(x -> (
//x.getBasePair() != null && ist gegeben wenn variance != 2
//x.getBasePair().getPairOp().equals(PairOperator.SMALLERDOT) &&
(x.getPairOp().equals(PairOperator.EQUALSDOT)
@ -695,13 +695,16 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
/* sameEqSet-Bestimmung Ende */
Set<UnifyPair> a = null;
UnifyPair a_rec = null;
while (nextSetasList.size() > 0) { //(nextSetasList.size() != 0) {
Set<UnifyPair> a_last = a;
//Liste der Faelle für die parallele Verarbeitung
List<Set<UnifyPair>> nextSetasListRest = new ArrayList<>();
//Liste der Faelle, bei dem Receiver jeweils "? extends" enthaelt bzw. nicht enthaelt
//In der Regel ein Element
List<Set<UnifyPair>> nextSetasListOderConstraints = new ArrayList<>();
//List<Set<UnifyPair>> nextSetasListRestMin = new ArrayList<>();
//List<Set<UnifyPair>> nextSetasListRestOder = new ArrayList<>();
writeLog("nextSet: " + nextSet.toString());
writeLog("nextSetasList: " + nextSetasList.toString());
if (variance == 1) {
@ -710,7 +713,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
if (oderConstraint) {
nextSetasListOderConstraints.add(((Constraint<UnifyPair>)a).getExtendConstraint());
}
writeLog("nextSetasListOderConstraints: " + nextSetasListOderConstraints);
writeLog("nextSetasListOderConstraints 1: " + nextSetasListOderConstraints);
nextSetasListRest = new ArrayList<>(nextSetasList);
Iterator<Set<UnifyPair>> nextSetasListItRest = new ArrayList<Set<UnifyPair>>(nextSetasListRest).iterator();
while (nextSetasListItRest.hasNext()) {
@ -741,6 +744,10 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
else if (variance == -1) {
a = oup.min(nextSetasList.iterator());
writeLog("Min: a in " + variance + " "+ a);
if (oderConstraint) {
nextSetasListOderConstraints.add(((Constraint<UnifyPair>)a).getExtendConstraint());
}
writeLog("nextSetasListOderConstraints -1: " + nextSetasListOderConstraints);
nextSetasList.remove(a);
nextSetasListRest = new ArrayList<>(nextSetasList);
Iterator<Set<UnifyPair>> nextSetasListItRest = new ArrayList<Set<UnifyPair>>(nextSetasListRest).iterator();
@ -774,8 +781,21 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
nextSetasListRest = new ArrayList<>(nextSetasList);
}
else if (variance == 0) {
//wenn a <. theta dann ist ein maximales Element sehr wahrscheinlich
//wenn theta <. a dann ist ein minimales Element sehr wahrscheinlich
if (!oderConstraint && optOrigPair != null && optOrigPair.isPresent()) {
if (optOrigPair.get().getBasePair().getLhsType() instanceof PlaceholderType) {
a = oup.max(nextSetasList.iterator());
}
else {
a = oup.min(nextSetasList.iterator());
}
nextSetasList.remove(a);
}
else {
a = nextSetasList.remove(0);
}
}
//writeLog("nextSet: " + nextSetasList.toString()+ "\n");
//nextSetasList.remove(a);
/* zu loeschen
@ -898,7 +918,9 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
}
}
/* PL 2019-03-13 Ende eingefuegt Vergleich mit anderen Paaren ggf. loeschen */
else {
nextSetasListOderConstraints.add(((Constraint<UnifyPair>)nSaL).getExtendConstraint());
}
Set<UnifyPair> newEq = new HashSet<>(eq);
Set<Set<UnifyPair>> newElems = new HashSet<>(elems);
List<Set<Constraint<UnifyPair>>> newOderConstraints = new ArrayList<>(oderConstraints);
@ -1006,7 +1028,9 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
}
}
/* PL 2019-03-13 Ende eingefuegt Vergleich mit anderen Paaren ggf. loeschen */
else {
nextSetasListOderConstraints.add(((Constraint<UnifyPair>)nSaL).getExtendConstraint());
}
Set<UnifyPair> newEq = new HashSet<>(eq);
Set<Set<UnifyPair>> newElems = new HashSet<>(elems);
List<Set<Constraint<UnifyPair>>> newOderConstraints = new ArrayList<>(oderConstraints);
@ -1296,6 +1320,7 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
if (oderConstraint) {
nextSetasList.removeAll(nextSetasListOderConstraints);
nextSetasListOderConstraints = new ArrayList<>();
writeLog("Removed: " + nextSetasListOderConstraints);
while(aParDefIt.hasNext()) {
Set<UnifyPair> a_new = aParDefIt.next();
List<Set<UnifyPair>> smallerSetasList = oup.smallerThan(a_new, nextSetasList);
@ -1376,14 +1401,31 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
aParDef.add(a);
Iterator<Set<UnifyPair>> aParDefIt = aParDef.iterator();
if (oderConstraint) {
nextSetasList.removeAll(nextSetasListOderConstraints);
writeLog("Removed: " + nextSetasListOderConstraints);
nextSetasListOderConstraints = new ArrayList<>();
while(aParDefIt.hasNext()) {
Set<UnifyPair> a_new = aParDefIt.next();
List<Set<UnifyPair>> greaterSetasList = oup.greaterThan(a_new, nextSetasList);
//a_new muss hingefuegt werden, wenn es nicht vererbt ist, dann wird es spaeter wieder geloescht
if (!((Constraint<UnifyPair>)a_new).isInherited()) {
greaterSetasList.add(a_new);
}
List<Set<UnifyPair>> notInherited = greaterSetasList.stream()
.filter(x -> !((Constraint<UnifyPair>)x).isInherited())
.collect(Collectors.toCollection(ArrayList::new));
List<Set<UnifyPair>> notErased = new ArrayList<>();
notInherited.stream().forEach(x -> { notErased.addAll(oup.greaterThan(x, greaterSetasList)); });
//Wenn x nicht vererbt ist, beginnt beim naechstgroesseren Element die naechste Ueberladung
notInherited.stream().forEach(x -> { notErased.addAll(oup.greaterEqThan(x, greaterSetasList)); });
//das kleineste Element ist das Element von dem a_new geerbt hat
//muss deshalb geloescht werden
Set<UnifyPair> min = oup.min(notErased.iterator());
notErased.remove(min);
notErased.remove(((Constraint<UnifyPair>)min).getExtendConstraint());
List<Set<UnifyPair>> erased = new ArrayList<>(greaterSetasList);
erased.removeAll(notErased);
nextSetasList.removeAll(erased);