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Tree visit(varTerm), dafür Konstruktor von VarStep erweitert
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@ -150,7 +150,19 @@ public class Tree implements TermVisitorTree {
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}
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@Override
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public InferenceStep visit(VarTerm varTerm, Map<VarTerm, TypeAbstraction> typeAssumptions, Type conclusionType) {
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return null; // TODO
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public InferenceStep visit(VarTerm varTerm, Map<VarTerm, TypeAbstraction> typeAssumptions, Type conclusionType)
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throws IllegalStateException {
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TypeAbstraction premiseAbs = typeAssumptions.get(varTerm);
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if (premiseAbs == null) {
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throw new IllegalStateException("Cannot create VarStep for VarTerm '"
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+ varTerm.getName() + "' without appropriate type assumption");
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}
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Type instantiation = premiseAbs.instantiate(typeVarFactory);
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Constraint newConstraint = new Constraint(conclusionType, instantiation);
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constraints.add(newConstraint);
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Conclusion conclusion = new Conclusion(typeAssumptions, varTerm, conclusionType);
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return stepFactory.createVarStep(premiseAbs, instantiation, conclusion, newConstraint);
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}
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}
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@ -2,6 +2,7 @@ package edu.kit.typicalc.model.step;
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import edu.kit.typicalc.model.Conclusion;
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import edu.kit.typicalc.model.Constraint;
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import edu.kit.typicalc.model.type.Type;
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import edu.kit.typicalc.model.type.TypeAbstraction;
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/**
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@ -34,14 +35,16 @@ public interface StepFactory {
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* @return the created ConstStep
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*/
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ConstStep createConstStep(Conclusion conclusion, Constraint constraint);
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/**
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* Creates a VarStep.
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* @param typeAbstraction the type abstraction of this step
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* @param instantiatedTypeAbs an instantiation of the type abstraction used in this step
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* @param conclusion the conclusion of this step
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* @param constraint the constraint that can be derived from this step
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* @return the created AbsStep
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*/
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VarStep createVarStep(TypeAbstraction typeAbstraction, Conclusion conclusion,
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Constraint constraint);
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VarStep createVarStep(TypeAbstraction typeAbstraction, Type instantiatedTypeAbs,
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Conclusion conclusion, Constraint constraint);
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//TODO LetStep
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}
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@ -2,12 +2,14 @@ package edu.kit.typicalc.model.step;
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import edu.kit.typicalc.model.Conclusion;
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import edu.kit.typicalc.model.Constraint;
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import edu.kit.typicalc.model.type.Type;
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import edu.kit.typicalc.model.type.TypeAbstraction;
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/**
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* A factory to create InferenceStep objects when let polymorphism is not used.
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*/
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public class StepFactoryDefault implements StepFactory {
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/**
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* Creates an AbsStepDefault.
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* @param premise the premise of this step
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@ -15,6 +17,7 @@ public class StepFactoryDefault implements StepFactory {
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* @param constraint the constraint that can be derived from this step
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* @return the created AbsStepDefault
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*/
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@Override
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public AbsStepDefault createAbsStep(InferenceStep premise, Conclusion conclusion, Constraint constraint) {
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return new AbsStepDefault(premise, conclusion, constraint);
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}
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@ -27,28 +30,34 @@ public class StepFactoryDefault implements StepFactory {
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* @param constraint the constraint that can be derived from this step
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* @return the created AppStepDefault
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*/
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@Override
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public AppStepDefault createAppStep(InferenceStep premise1, InferenceStep premise2,
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Conclusion conclusion, Constraint constraint) {
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return new AppStepDefault(premise1, premise2, conclusion, constraint);
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}
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/**
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* Creates an ConstStepDefault.
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* @param conclusion the conclusion of this step
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* @param constraint the constraint that can be derived from this step
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* @return the created ConstStepDefault
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*/
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@Override
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public ConstStepDefault createConstStep(Conclusion conclusion, Constraint constraint) {
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return new ConstStepDefault(conclusion, constraint);
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}
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/**
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* Creates a VarStepDefault.
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* @param typeAbstraction the type abstraction of this step
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* @param instantiatedTypeAbs an instantiation of the type abstraction used in this step
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* @param conclusion the conclusion of this step
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* @param constraint the constraint that can be derived from this step
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* @return the created AbsStepDefault
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*/
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public VarStepDefault createVarStep(TypeAbstraction typeAbstraction, Conclusion conclusion,
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Constraint constraint) {
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return new VarStepDefault(typeAbstraction, conclusion, constraint);
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@Override
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public VarStepDefault createVarStep(TypeAbstraction typeAbstraction, Type instantiatedTypeAbs,
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Conclusion conclusion, Constraint constraint) {
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return new VarStepDefault(typeAbstraction, instantiatedTypeAbs, conclusion, constraint);
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}
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}
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@ -2,12 +2,14 @@ package edu.kit.typicalc.model.step;
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import edu.kit.typicalc.model.Conclusion;
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import edu.kit.typicalc.model.Constraint;
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import edu.kit.typicalc.model.type.Type;
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import edu.kit.typicalc.model.type.TypeAbstraction;
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/**
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* A factory to create InferenceStep objects when let polymorphism is used.
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*/
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public class StepFactoryWithLet implements StepFactory {
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/**
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* Creates an AbsStepWithLet.
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* @param premise the premise of this step
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@ -15,6 +17,7 @@ public class StepFactoryWithLet implements StepFactory {
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* @param constraint the constraint that can be derived from this step
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* @return the created AbsStepWithLet
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*/
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@Override
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public AbsStepWithLet createAbsStep(InferenceStep premise, Conclusion conclusion, Constraint constraint) {
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return new AbsStepWithLet(premise, conclusion, constraint);
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}
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@ -27,28 +30,35 @@ public class StepFactoryWithLet implements StepFactory {
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* @param constraint the constraint that can be derived from this step
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* @return the created AppStepDefault
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*/
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@Override
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public AppStepDefault createAppStep(InferenceStep premise1, InferenceStep premise2,
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Conclusion conclusion, Constraint constraint) {
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return new AppStepDefault(premise1, premise2, conclusion, constraint);
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}
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/**
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* Creates an ConstStepDefault.
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* @param conclusion the conclusion of this step
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* @param constraint the constraint that can be derived from this step
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* @return the created ConstStepDefault
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*/
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@Override
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public ConstStepDefault createConstStep(Conclusion conclusion, Constraint constraint) {
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return new ConstStepDefault(conclusion, constraint);
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}
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/**
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* Creates a VarStepWithLet.
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*
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* @param typeAbstraction the type abstraction of this step
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* @param instantiatedTypeAbs an instantiation of the type abstraction used in this step
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* @param conclusion the conclusion of this step
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* @param constraint the constraint that can be derived from this step
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* @return the created VarStepWithLet
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*/
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public VarStepWithLet createVarStep(TypeAbstraction typeAbstraction, Conclusion conclusion,
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Constraint constraint) {
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return new VarStepWithLet(typeAbstraction, conclusion, constraint);
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@Override
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public VarStepWithLet createVarStep(TypeAbstraction typeAbstraction, Type instantiatedTypeAbs,
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Conclusion conclusion, Constraint constraint) {
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return new VarStepWithLet(typeAbstraction, instantiatedTypeAbs, conclusion, constraint);
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}
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}
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@ -2,6 +2,7 @@ package edu.kit.typicalc.model.step;
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import edu.kit.typicalc.model.Conclusion;
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import edu.kit.typicalc.model.Constraint;
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import edu.kit.typicalc.model.type.Type;
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import edu.kit.typicalc.model.type.TypeAbstraction;
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/**
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@ -9,24 +10,40 @@ import edu.kit.typicalc.model.type.TypeAbstraction;
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* abstraction that is identified as the type of the variable in the premise of the step.
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*/
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public abstract class VarStep extends InferenceStep {
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private TypeAbstraction typeAbstractionInPremise;
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private final TypeAbstraction typeAbstractionInPremise;
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private final Type instantiatedTypeAbs;
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/**
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* Initializes a new VarStep with the given values.
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*
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* @param typeAbstractionInPremise the type abstraction in the premise of this step
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* @param instantiatedTypeAbs an instantiation of the type abstraction used in this step
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* @param conclusion the conclusion of this step
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* @param constraint the constraint added in this step
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* @param typeAbstractionInPremise the type abstraction in the premise of this step
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*/
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protected VarStep(TypeAbstraction typeAbstractionInPremise, Conclusion conclusion, Constraint constraint) {
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protected VarStep(TypeAbstraction typeAbstractionInPremise, Type instantiatedTypeAbs, Conclusion conclusion,
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Constraint constraint) {
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super(conclusion, constraint);
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this.typeAbstractionInPremise = typeAbstractionInPremise;
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this.instantiatedTypeAbs = instantiatedTypeAbs;
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}
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/**
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* Returns the type abstraction in the premise of the step, that is identified as the
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* variable’s type.
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*
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* @return the type abstraction in the premise of this step
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*/
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public TypeAbstraction getTypeAbsInPremise() {
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return typeAbstractionInPremise;
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}
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/**
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* Returns the instantiation of the type abstraction.
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*
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* @return the instantiation of the type abstraction.
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*/
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public Type getInstantiatedTypeAbs() {
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return instantiatedTypeAbs;
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}
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}
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@ -2,17 +2,21 @@ package edu.kit.typicalc.model.step;
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import edu.kit.typicalc.model.Conclusion;
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import edu.kit.typicalc.model.Constraint;
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import edu.kit.typicalc.model.type.Type;
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import edu.kit.typicalc.model.type.TypeAbstraction;
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public class VarStepDefault extends VarStep {
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/**
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* Initializes a new VarStep with the given values.
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*
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* @param typeAbstractionInPremise the type abstraction in the premise of this step
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* @param instantiatedTypeAbs an instantiation of the type abstraction used in this step
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* @param conclusion the conclusion of this step
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* @param constraint the constraint added in this step
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* @param typeAbstractionInPremise the type abstraction in the premise of this step
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*/
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public VarStepDefault(TypeAbstraction typeAbstractionInPremise, Conclusion conclusion, Constraint constraint) {
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super(typeAbstractionInPremise, conclusion, constraint);
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public VarStepDefault(TypeAbstraction typeAbstractionInPremise, Type instantiatedTypeAbs, Conclusion conclusion,
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Constraint constraint) {
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super(typeAbstractionInPremise, instantiatedTypeAbs, conclusion, constraint);
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}
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/**
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@ -2,17 +2,21 @@ package edu.kit.typicalc.model.step;
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import edu.kit.typicalc.model.Conclusion;
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import edu.kit.typicalc.model.Constraint;
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import edu.kit.typicalc.model.type.Type;
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import edu.kit.typicalc.model.type.TypeAbstraction;
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public class VarStepWithLet extends VarStep {
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/**
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* Initializes a new VarStep with the given values.
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*
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* @param typeAbstractionInPremise the type abstraction in the premise of this step
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* @param instantiatedTypeAbs an instantiation of the type abstraction used in this step
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* @param conclusion the conclusion of this step
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* @param constraint the constraint added in this step
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* @param typeAbstractionInPremise the type abstraction in the premise of this step
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*/
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public VarStepWithLet(TypeAbstraction typeAbstractionInPremise, Conclusion conclusion, Constraint constraint) {
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super(typeAbstractionInPremise, conclusion, constraint);
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public VarStepWithLet(TypeAbstraction typeAbstractionInPremise, Type instantiatedTypeAbs, Conclusion conclusion,
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Constraint constraint) {
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super(typeAbstractionInPremise, instantiatedTypeAbs, conclusion, constraint);
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}
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/**
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@ -75,5 +75,6 @@ public interface TermVisitorTree {
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* of the returned inference step will be assigned
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* @return an {@link edu.kit.typicalc.model.step.VarStep}
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*/
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InferenceStep visit(VarTerm varTerm, Map<VarTerm, TypeAbstraction> typeAssumptions, Type conclusionType);
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InferenceStep visit(VarTerm varTerm, Map<VarTerm, TypeAbstraction> typeAssumptions, Type conclusionType)
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throws IllegalStateException;
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}
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@ -1,5 +1,7 @@
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package edu.kit.typicalc.model.type;
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import edu.kit.typicalc.model.TypeVariableFactory;
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import java.util.List;
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public class TypeAbstraction {
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@ -9,4 +11,7 @@ public class TypeAbstraction {
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public TypeAbstraction(Type type) {
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}
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public Type instantiate(TypeVariableFactory typeVarFactory) {
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return null;
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}
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}
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