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modified: src/de/dhbwstuttgart/core/JavaTXCompiler.java

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varianceInheritance nach TypeUnifyTask.java verschoben
Kommentar eingefuegt

TODO:
1. compare-Funktinen nochmals ueberpruefen
2. Undef-Pairs in JavaTXiCompiler.java abfangen
3. ? extends bei allen Argumenttypen und Returntypen rauslassen
This commit is contained in:
Martin Plümicke 2018-04-20 23:52:12 +02:00
parent 087170bdbf
commit 0ae777b4ac
3 changed files with 55 additions and 38 deletions
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39
src/de/dhbwstuttgart/core/JavaTXCompiler.java
View File

@ -23,6 +23,7 @@ import de.dhbwstuttgart.typeinference.result.ResultSet;
import de.dhbwstuttgart.typeinference.typeAlgo.TYPE;
import de.dhbwstuttgart.typeinference.unify.RuleSet;
import de.dhbwstuttgart.typeinference.unify.TypeUnify;
import de.dhbwstuttgart.typeinference.unify.inheritVariance;
import de.dhbwstuttgart.typeinference.unify.model.FiniteClosure;
import de.dhbwstuttgart.typeinference.unify.model.PlaceholderType;
import de.dhbwstuttgart.typeinference.unify.model.UnifyPair;
@ -143,7 +144,6 @@ public class JavaTXCompiler {
}
return x;
}).collect(Collectors.toCollection(HashSet::new));
varianceInferitance(xConsSet);
Set<Set<UnifyPair>> result = unify.unifySequential(xConsSet, finiteClosure, logFile);
//Set<Set<UnifyPair>> result = unify.unify(xConsSet, finiteClosure);
System.out.println("RESULT: " + result);
@ -158,42 +158,7 @@ public class JavaTXCompiler {
new ResultSet(UnifyTypeFactory.convert(unifyPairs, generateTPHMap(cons))))).collect(Collectors.toList());
}
private void varianceInferitance(Set<UnifyPair> xConsSet) {
Set<PlaceholderType> phSet = xConsSet.stream().map(x -> {
Set<PlaceholderType> pair = new HashSet<>();
if (x.getLhsType() instanceof PlaceholderType) pair.add((PlaceholderType)x.getLhsType());
if (x.getRhsType() instanceof PlaceholderType) pair.add((PlaceholderType)x.getRhsType());
return pair;
}).reduce(new HashSet<>(), (a,b) -> { a.addAll(b); return a;} , (c,d) -> { c.addAll(d); return c;});
ArrayList<PlaceholderType> phSetVariance = new ArrayList<>(phSet);
phSetVariance.removeIf(x -> (x.getVariance() == 0));
while(!phSetVariance.isEmpty()) {
PlaceholderType a = phSetVariance.remove(0);
xConsSet.stream().forEach(x -> { if (x.getLhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getLhsType()).equals(a)) {
((PlaceholderType)x.getLhsType()).setVariance(a.getVariance());
if (x.getRhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getRhsType()).getVariance() == 0) {
((PlaceholderType)x.getRhsType()).setVariance(a.getVariance());
phSetVariance.add((PlaceholderType)x.getRhsType());
}
};
}
);
xConsSet.stream().forEach(x -> { if (x.getRhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getRhsType()).equals(a)) {
((PlaceholderType)x.getRhsType()).setVariance(a.getVariance());
if (x.getLhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getLhsType()).getVariance() == 0) {
((PlaceholderType)x.getLhsType()).setVariance(a.getVariance());
phSetVariance.add((PlaceholderType)x.getLhsType());
}
};
}
);
}
}
private Map<String, TypePlaceholder> generateTPHMap(ConstraintSet<Pair> constraints) {
HashMap<String, TypePlaceholder> ret = new HashMap<>();

53
src/de/dhbwstuttgart/typeinference/unify/TypeUnifyTask.java
View File

@ -86,7 +86,53 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
this.logFile = logFile;
rules = new RuleSet(logFile);
}
/**
* Vererbt alle Variancen
* @param eq The set of constraints
*/
private void varianceInheritance(Set<UnifyPair> eq) {
Set<PlaceholderType> phSet = eq.stream().map(x -> {
Set<PlaceholderType> pair = new HashSet<>();
if (x.getLhsType() instanceof PlaceholderType) pair.add((PlaceholderType)x.getLhsType());
if (x.getRhsType() instanceof PlaceholderType) pair.add((PlaceholderType)x.getRhsType());
return pair;
}).reduce(new HashSet<>(), (a,b) -> { a.addAll(b); return a;} , (c,d) -> { c.addAll(d); return c;});
ArrayList<PlaceholderType> phSetVariance = new ArrayList<>(phSet);
phSetVariance.removeIf(x -> (x.getVariance() == 0));
while(!phSetVariance.isEmpty()) {
PlaceholderType a = phSetVariance.remove(0);
HashMap<PlaceholderType,Integer> ht = new HashMap<>();
ht.put(a, a.getVariance());
eq.stream().forEach(x -> {
x.getLhsType().accept(new inheritVariance(), ht);
if (x.getLhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getLhsType()).equals(a)//) {
//((PlaceholderType)x.getLhsType()).setVariance(a.getVariance());
//if
&& x.getRhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getRhsType()).getVariance() == 0) {
((PlaceholderType)x.getRhsType()).setVariance(a.getVariance());
phSetVariance.add((PlaceholderType)x.getRhsType());
//}
};
});
eq.stream().forEach(x -> {
x.getRhsType().accept(new inheritVariance(), ht);
if (x.getRhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getRhsType()).equals(a)//) {
//((PlaceholderType)x.getRhsType()).setVariance(a.getVariance());
//if
&& x.getLhsType() instanceof PlaceholderType
&& ((PlaceholderType)x.getLhsType()).getVariance() == 0) {
((PlaceholderType)x.getLhsType()).setVariance(a.getVariance());
phSetVariance.add((PlaceholderType)x.getLhsType());
//}
};
});
}
}
@Override
protected Set<Set<UnifyPair>> compute() {
return unify(eq, fc, parallel);
@ -105,6 +151,11 @@ public class TypeUnifyTask extends RecursiveTask<Set<Set<UnifyPair>>> {
writeLog("Unifikation: " + eq.toString());
//eq = eq.stream().map(x -> {x.setVariance((byte)-1); return x;}).collect(Collectors.toCollection(HashSet::new));
/*
* Variancen auf alle Gleichungen vererben
*/
varianceInheritance(eq);
/*
* ? extends ? extends Theta rausfiltern
*/

1
src/de/dhbwstuttgart/typeinference/unify/model/OrderingUnifyPair.java
View File

@ -149,6 +149,7 @@ public class OrderingUnifyPair extends Ordering<Set<UnifyPair>> {
if (rseq.getRhsType().getName().equals("Object")) return -1;
}
if (leftlewc.size() == rightlewc.size()) {
//TODO: Hier wird bei Wildcards nicht das richtige compare aufgerufen PL 18-04-20
Pair<Integer, Set<UnifyPair>> int_Unifier = compare(lseq.getRhsType(), rseq.getRhsType());
Unifier uni = new Unifier();
int_Unifier.getValue().stream().forEach(x -> uni.add((PlaceholderType) x.getLhsType(), x.getRhsType()));