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Added missing rules

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This commit is contained in:
Florian Steurer 2016-03-22 20:41:24 +01:00
parent 21c6aef7fd
commit 0e524caae7
2 changed files with 106 additions and 0 deletions
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8
src/de/dhbwstuttgart/typeinference/unify/interfaces/IRuleSet.java
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@ -16,6 +16,14 @@ public interface IRuleSet {
public Optional<Set<MPair>> reduce1(MPair pair);
public Optional<Set<MPair>> reduce2(MPair pair);
public Optional<MPair> reduceWildcardLow(MPair pair);
public Optional<MPair> reduceWildcardLowRight(MPair pair);
public Optional<MPair> reduceWildcardUp(MPair pair);
public Optional<MPair> reduceWildcardUpRight(MPair pair);
public Optional<MPair> reduceWildCardLowUp(MPair pair);
public Optional<MPair> reduceWildcardUpLow(MPair pair);
public Optional<MPair> reduceWildcardLeft(MPair pair);
public boolean erase1(MPair pair);
public boolean erase2(MPair pair);
public boolean erase3(MPair pair);

98
src/de/dhbwstuttgart/typeinference/unifynew/RuleSet.java
View File

@ -559,4 +559,102 @@ public class RuleSet implements IRuleSet{
return applied ? Optional.of(new HashSet<>(result)) : Optional.empty();
}
@Override
public Optional<MPair> reduceWildcardLow(MPair pair) {
if(pair.getPairOp() != PairOperator.SMALLERDOTWC)
return Optional.empty();
Type lhsType = pair.getLhsType();
Type rhsType = pair.getRhsType();
if(!(lhsType instanceof ExtendsType) || !(rhsType instanceof ExtendsType))
return Optional.empty();
return Optional.of(new MPair(((ExtendsType) lhsType).getExtendedType(), ((ExtendsType) rhsType).getExtendedType(), PairOperator.SMALLERDOT));
}
@Override
public Optional<MPair> reduceWildcardLowRight(MPair pair) {
if(pair.getPairOp() != PairOperator.SMALLERDOTWC)
return Optional.empty();
Type lhsType = pair.getLhsType();
Type rhsType = pair.getRhsType();
if((lhsType instanceof ExtendsType) || !(rhsType instanceof ExtendsType))
return Optional.empty();
return Optional.of(new MPair(lhsType, ((ExtendsType) rhsType).getExtendedType(), PairOperator.SMALLERDOT));
}
@Override
public Optional<MPair> reduceWildcardUp(MPair pair) {
if(pair.getPairOp() != PairOperator.SMALLERDOTWC)
return Optional.empty();
Type lhsType = pair.getLhsType();
Type rhsType = pair.getRhsType();
if(!(lhsType instanceof SuperType) || !(rhsType instanceof SuperType))
return Optional.empty();
return Optional.of(new MPair(((SuperType) rhsType).getSuperedType(), ((SuperType) lhsType).getSuperedType(), PairOperator.SMALLERDOT));
}
@Override
public Optional<MPair> reduceWildcardUpRight(MPair pair) {
if(pair.getPairOp() != PairOperator.SMALLERDOTWC)
return Optional.empty();
Type lhsType = pair.getLhsType();
Type rhsType = pair.getRhsType();
if((lhsType instanceof SuperType) || !(rhsType instanceof SuperType))
return Optional.empty();
return Optional.of(new MPair(((SuperType) rhsType).getSuperedType(), lhsType, PairOperator.SMALLERDOT));
}
@Override
public Optional<MPair> reduceWildCardLowUp(MPair pair) {
if(pair.getPairOp() != PairOperator.SMALLERDOTWC)
return Optional.empty();
Type lhsType = pair.getLhsType();
Type rhsType = pair.getRhsType();
if(!(lhsType instanceof ExtendsType) || !(rhsType instanceof SuperType))
return Optional.empty();
return Optional.of(new MPair(((ExtendsType) lhsType).getExtendedType(), ((SuperType) rhsType).getSuperedType(), PairOperator.EQUALSDOT));
}
@Override
public Optional<MPair> reduceWildcardUpLow(MPair pair) {
if(pair.getPairOp() != PairOperator.SMALLERDOTWC)
return Optional.empty();
Type lhsType = pair.getLhsType();
Type rhsType = pair.getRhsType();
if(!(lhsType instanceof SuperType) || !(rhsType instanceof ExtendsType))
return Optional.empty();
return Optional.of(new MPair(((SuperType) lhsType).getSuperedType(), ((ExtendsType) rhsType).getExtendedType(), PairOperator.EQUALSDOT));
}
@Override
public Optional<MPair> reduceWildcardLeft(MPair pair) {
if(pair.getPairOp() != PairOperator.SMALLERDOTWC)
return Optional.empty();
Type rhsType = pair.getRhsType();
if((rhsType instanceof SuperType) || (rhsType instanceof ExtendsType))
return Optional.empty();
Type lhsType = pair.getLhsType();
if(lhsType instanceof SuperType)
return Optional.of(new MPair(((SuperType) lhsType).getSuperedType(), rhsType, PairOperator.EQUALSDOT));
if(lhsType instanceof ExtendsType)
return Optional.of(new MPair(((ExtendsType) lhsType).getExtendedType(), rhsType, PairOperator.EQUALSDOT));
return Optional.empty();
}
}