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modified: src/main/java/de/dhbwstuttgart/syntaxtree/type/TypePlaceholder.java

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modified:   src/main/java/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java
This commit is contained in:
pl@gohorb.ba-horb.de 2020-02-06 18:35:33 +01:00
parent 23384f413d
commit 5c97d80eb0
2 changed files with 8 additions and 12 deletions
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6
src/main/java/de/dhbwstuttgart/syntaxtree/type/TypePlaceholder.java
View File

@ -19,6 +19,10 @@ public class TypePlaceholder extends RefTypeOrTPHOrWildcardOrGeneric
{
private final String name;
/**
* wird bisher nicht genutzt
* setVariance muss ggf. auskommentiert werden.
*/
int variance = 0;
@ -70,9 +74,11 @@ public class TypePlaceholder extends RefTypeOrTPHOrWildcardOrGeneric
return name;
}
/* wird bisher nicht genutzt
public void setVariance(int variance) {
this.variance= variance;
}
*/
public int getVariance() {
return this.variance;

14
src/main/java/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java
View File

@ -573,17 +573,10 @@ public class TYPEStmt implements StatementVisitor{
*/
RefTypeOrTPHOrWildcardOrGeneric retType = assumption.getReceiverType(resolver);
RefTypeOrTPHOrWildcardOrGeneric zwSp;
methodConstraint.add(new Pair(zwSp = forMethod.receiver.getType(), retType,
methodConstraint.add(new Pair(forMethod.receiver.getType(), retType,
PairOperator.SMALLERDOT));
if (zwSp instanceof TypePlaceholder) {
((TypePlaceholder) zwSp).setVariance(1);
}
methodConstraint.add(new Pair(assumption.getReturnType(resolver), zwSp = forMethod.getType(),
methodConstraint.add(new Pair(assumption.getReturnType(resolver), forMethod.getType(),
PairOperator.EQUALSDOT));
if (zwSp instanceof TypePlaceholder) {
((TypePlaceholder) zwSp).setVariance(-1);
}
methodConstraint.addAll(generateParameterConstraints(forMethod, assumption, info, resolver));
return methodConstraint;
}
@ -596,9 +589,6 @@ public class TYPEStmt implements StatementVisitor{
RefTypeOrTPHOrWildcardOrGeneric argType = foMethod.arglist.getArguments().get(i).getType();
RefTypeOrTPHOrWildcardOrGeneric assType = assumption.getArgTypes(resolver).get(i);
ret.add(new Pair(argType, assType, PairOperator.SMALLERDOT));
if (argType instanceof TypePlaceholder) {
((TypePlaceholder) argType).setVariance(1);
}
}
return ret;
}