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package com.github.javaparser.symbolsolver.resolution.typeinference.bounds;
import com.github.javaparser.symbolsolver.resolution.typeinference.Bound;
import com.github.javaparser.symbolsolver.resolution.typeinference.InferenceVariable;
import com.github.javaparser.symbolsolver.resolution.typeinference.InferenceVariableSubstitution;
import java.util.HashSet;
import java.util.Set;
/**
* The inference variable α appears in a throws clause.
*
* A bound of the form throws α is purely informational: it directs resolution to optimize the instantiation of α so
* that, if possible, it is not a checked exception type.
*
* @author Federico Tomassetti
*/
public class ThrowsBound extends Bound {
private InferenceVariable inferenceVariable;
public ThrowsBound(InferenceVariable inferenceVariable) {
this.inferenceVariable = inferenceVariable;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ThrowsBound that = (ThrowsBound) o;
return inferenceVariable.equals(that.inferenceVariable);
}
@Override
public String toString() {
return "ThrowsBound{" +
"inferenceVariable=" + inferenceVariable +
'}';
}
@Override
public int hashCode() {
return inferenceVariable.hashCode();
}
@Override
public Set<InferenceVariable> usedInferenceVariables() {
Set<InferenceVariable> variables = new HashSet<>();
variables.add(inferenceVariable);
return variables;
}
@Override
public boolean isSatisfied(InferenceVariableSubstitution inferenceVariableSubstitution) {
throw new UnsupportedOperationException();
}
public boolean isThrowsBoundOn(InferenceVariable inferenceVariable) {
return inferenceVariable.equals(this.inferenceVariable);
}
}
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