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

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modified:   ../../src/de/dhbwstuttgart/typeinference/constraints/ConstraintSet.java
This commit is contained in:
Martin Plümicke 2018-10-18 23:47:38 +02:00
parent 60be47c0f1
commit 6ce9f4415e
2 changed files with 173 additions and 0 deletions
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155
src/de/dhbwstuttgart/core/JavaTXCompiler.java
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@ -215,6 +215,118 @@ public class JavaTXCompiler {
new ResultSet(UnifyTypeFactory.convert(unifyPairs, generateTPHMap(cons))))).collect(Collectors.toList());
}
public List<ResultSet> typeInferenceNew() throws ClassNotFoundException {
List<ClassOrInterface> allClasses = new ArrayList<>();//environment.getAllAvailableClasses();
//Alle Importierten Klassen in allen geparsten Sourcefiles kommen ins FC
for(SourceFile sf : this.sourceFiles.values()) {
allClasses.addAll(getAvailableClasses(sf));
allClasses.addAll(sf.getClasses());
}
final ConstraintSet<Pair> cons = getConstraints();
FiniteClosure finiteClosure = UnifyTypeFactory.generateFC(allClasses);
System.out.println(finiteClosure);
ConstraintSet<UnifyPair> unifyCons = UnifyTypeFactory.convert(cons);
TypeUnify unify = new TypeUnify();
Set<Set<UnifyPair>> results = new HashSet<>();
try {
FileWriter logFile = new FileWriter(new File(System.getProperty("user.dir")+"/test/logFiles/"+"log"));
logFile.write("FC:\\" + finiteClosure.toString()+"\n");
for(SourceFile sf : this.sourceFiles.values()) {
logFile.write(ASTTypePrinter.print(sf));
}
logFile.flush();
Set<List<Constraint<UnifyPair>>> cardProd = unifyCons.cartesianProduct();
for (List<Constraint<UnifyPair>> xCons : cardProd ){
Set<UnifyPair> xConsSet = new HashSet<>();
for (Constraint<UnifyPair> constraint : xCons) {
xConsSet.addAll(constraint);
}
//.collect(Collectors.toCollection(ArrayList::new))))
System.out.println(xConsSet);
Set<String> paraTypeVarNames = allClasses.stream().map(x -> x.getMethods().stream().map(y -> y.getParameterList().getFormalparalist()
.stream().filter(z -> z.getType() instanceof TypePlaceholder)
.map(z -> ((TypePlaceholder)z.getType()).getName()).collect(Collectors.toCollection(HashSet::new)))
.reduce(new HashSet<String>(), (a,b) -> { a.addAll(b); return a;}, (a,b) -> { a.addAll(b); return a;} ) )
.reduce(new HashSet<String>(), (a,b) -> { a.addAll(b); return a;} );
Set<String> returnTypeVarNames = allClasses.stream().map(x -> x.getMethods().stream().filter(y -> y.getReturnType() instanceof TypePlaceholder)
.map(z -> ((TypePlaceholder)z.getReturnType()).getName()).collect(Collectors.toCollection(HashSet::new))).reduce((a,b) -> { a.addAll(b); return a;} ).get();
Set<String> fieldTypeVarNames = allClasses.stream().map(x -> x.getFieldDecl().stream().filter(y -> y.getReturnType() instanceof TypePlaceholder)
.map(z -> ((TypePlaceholder)z.getReturnType()).getName()).collect(Collectors.toCollection(HashSet::new))).reduce((a,b) -> { a.addAll(b); return a;} ).get();
returnTypeVarNames.addAll(fieldTypeVarNames);
unifyCons = unifyCons.map(x -> {
//Hier muss ueberlegt werden, ob
//1. alle Argument- und Retuntyp-Variablen in allen UnifyPairs
// mit disableWildcardtable() werden.
//2. alle Typvariablen mit Argument- oder Retuntyp-Variablen
//in Beziehung auch auf disableWildcardtable() gesetzt werden muessen
//PL 2018-04-23
if ((x.getLhsType() instanceof PlaceholderType)) {
if (paraTypeVarNames.contains(x.getLhsType().getName())) {
((PlaceholderType)x.getLhsType()).setVariance((byte)1);
((PlaceholderType)x.getLhsType()).disableWildcardtable();
}
if (returnTypeVarNames.contains(x.getLhsType().getName())) {
((PlaceholderType)x.getLhsType()).setVariance((byte)-1);
((PlaceholderType)x.getLhsType()).disableWildcardtable();
}
}
if ((x.getRhsType() instanceof PlaceholderType)) {
if (paraTypeVarNames.contains(x.getRhsType().getName())) {
((PlaceholderType)x.getRhsType()).setVariance((byte)1);
((PlaceholderType)x.getRhsType()).disableWildcardtable();
}
if (returnTypeVarNames.contains(x.getRhsType().getName())) {
((PlaceholderType)x.getRhsType()).setVariance((byte)-1);
((PlaceholderType)x.getRhsType()).disableWildcardtable();
}
}
return x;//HIER DIE JEWEILS RECHT BZW. LINKE SEITE AUF GLEICHE VARIANZ SETZEN WIE DIE JEWEILS ANDERE SEITE
}).map( y -> {
if ((y.getLhsType() instanceof PlaceholderType) && (y.getRhsType() instanceof PlaceholderType)) {
if (((PlaceholderType)y.getLhsType()).getVariance() != 0 && ((PlaceholderType)y.getRhsType()).getVariance() == 0) {
((PlaceholderType)y.getRhsType()).setVariance(((PlaceholderType)y.getLhsType()).getVariance());
}
if (((PlaceholderType)y.getLhsType()).getVariance() == 0 && ((PlaceholderType)y.getRhsType()).getVariance() != 0) {
((PlaceholderType)y.getLhsType()).setVariance(((PlaceholderType)y.getRhsType()).getVariance());
}
}
return y; } );
varianceInheritanceConstrainSet(unifyCons);
Set<Set<UnifyPair>> result = unify.unifySequential(xConsSet, finiteClosure, logFile, log);
//Set<Set<UnifyPair>> result = unify.unify(xConsSet, finiteClosure);
System.out.println("RESULT: " + result);
logFile.write("RES: " + result.toString()+"\n");
logFile.flush();
results.addAll(result);
}
results = results.stream().map(x -> {
Optional<Set<UnifyPair>> res = new RuleSet().subst(x.stream().map(y -> {
if (y.getPairOp() == PairOperator.SMALLERDOTWC) y.setPairOp(PairOperator.EQUALSDOT);
return y; //alle Paare a <.? b erden durch a =. b ersetzt
}).collect(Collectors.toCollection(HashSet::new)));
if (res.isPresent()) {//wenn subst ein Erg liefert wurde was veraendert
return new TypeUnifyTask().applyTypeUnificationRules(res.get(), finiteClosure);
}
else return x; //wenn nichts veraendert wurde wird x zurueckgegeben
}).collect(Collectors.toCollection(HashSet::new));
System.out.println("RESULT Final: " + results);
logFile.write("RES_FINAL: " + results.toString()+"\n");
logFile.flush();
}
catch (IOException e) { }
return results.stream().map((unifyPairs ->
new ResultSet(UnifyTypeFactory.convert(unifyPairs, generateTPHMap(cons))))).collect(Collectors.toList());
}
/**
* Vererbt alle Variancen
* @param eq The set of constraints
@ -245,6 +357,49 @@ public class JavaTXCompiler {
phSetVariance.removeIf(x -> (x.getVariance() == 0 || usedTPH.contains(x)));
}
}
/**
* Vererbt alle Variancen
* @param eq The set of constraints
*/
private void varianceInheritanceConstrainSet(ConstraintSet<UnifyPair> cons) {
Set<UnifyPair> eq = cons.getAll();
Set<PlaceholderType> usedTPH = new HashSet<>();
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);
usedTPH.add(a);
//HashMap<PlaceholderType,Integer> ht = new HashMap<>();
//ht.put(a, a.getVariance());
//ConstraintSet<UnifyPair> eq1 = cons;
//eq1.removeIf(x -> !(x.getLhsType() instanceof PlaceholderType && ((PlaceholderType)x.getLhsType()).equals(a)));
//durch if-Abfrage im foreach geloest
cons.forEach(x -> {
if (x.getLhsType() instanceof PlaceholderType && ((PlaceholderType)x.getLhsType()).equals(a)) {
x.getRhsType().accept(new distributeVariance(), a.getVariance());
}
});
//` eq1 = new HashSet<>(eq);
//eq1.removeIf(x -> !(x.getRhsType() instanceof PlaceholderType && ((PlaceholderType)x.getRhsType()).equals(a)));
//durch if-Abfrage im foreach geloest
cons.forEach(x -> {
if (x.getRhsType() instanceof PlaceholderType && ((PlaceholderType)x.getRhsType()).equals(a)) {
x.getLhsType().accept(new distributeVariance(), a.getVariance());
}
});
//phSetVariance = new ArrayList<>(phSet); macht vermutlich keinen Sinn PL 2018-10-18
//phSetVariance.removeIf(x -> (x.getVariance() == 0 || usedTPH.contains(x)));
}
}
private Map<String, TypePlaceholder> generateTPHMap(ConstraintSet<Pair> constraints) {
HashMap<String, TypePlaceholder> ret = new HashMap<>();

18
src/de/dhbwstuttgart/typeinference/constraints/ConstraintSet.java
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@ -5,6 +5,7 @@ import de.dhbwstuttgart.typeinference.unify.GuavaSetOperations;
import de.dhbwstuttgart.typeinference.unify.model.UnifyPair;
import java.util.*;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Collectors;
@ -52,4 +53,21 @@ public class ConstraintSet<A> {
ret.oderConstraints = newOder;
return ret;
}
public void forEach (Consumer<? super A> c) {
undConstraints.stream().forEach(c);
for(Set<Constraint<A>> oderConstraint : oderConstraints){
oderConstraint.parallelStream().forEach((Constraint<A> as) ->
as.stream().forEach(c));
}
}
public Set<A> getAll () {
Set<A> ret = new HashSet<>();
ret.addAll(undConstraints);
for(Set<Constraint<A>> oderConstraint : oderConstraints){
oderConstraint.parallelStream().forEach((Constraint<A> as) -> ret.addAll(as));
}
return ret;
}
}