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MPSTypechecking.java
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MPSTypechecking.java
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/*
* Copyright 2003-2023 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.typechecking.internal;
import jetbrains.mps.classloading.ClassLoaderManager;
import jetbrains.mps.components.ComponentHost;
import jetbrains.mps.components.ComponentPlugin;
import jetbrains.mps.components.CoreComponent;
import jetbrains.mps.languageScope.LanguageScopeFactory;
import jetbrains.mps.smodel.language.LanguageRegistry;
import jetbrains.mps.typechecking.backend.TypecheckingBackend;
import jetbrains.mps.typechecking.backend.TypecheckingFacadeComponent;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.module.SRepository;
/**
* MPS Core Component ® responsible for management of TypecheckingFaçade.
*
* @author Fedor Isakov
*/
public class MPSTypechecking extends ComponentPlugin implements ComponentHost {
// dependencies
@NotNull private final LanguageRegistry myLanguageRegistry;
@NotNull private final SRepository myRepository;
// internal components
private LanguageScopeFactory myLanguageScopeFactory;
private TypecheckingFacadeComponent myTypecheckingFacadeComponent;
private TypecheckingBackend myTypecheckingBackend;
/**
* This class is to be instantiated only by the appropriate component manager, who is solely authorized to do so.
* What, never heard of dependency injection?
*/
public MPSTypechecking(@NotNull LanguageRegistry languageRegistry,
@NotNull SRepository repository) {
myLanguageRegistry = languageRegistry;
myRepository = repository;
}
@NotNull
public TypecheckingBackend getBackend() {
return myTypecheckingBackend;
}
@Override
public void init() {
super.init();
this.myTypecheckingBackend = init(new TypecheckingBackend());
this.myLanguageScopeFactory = init(new LanguageScopeFactory(myLanguageRegistry, myRepository));
this.myTypecheckingFacadeComponent = init(new TypecheckingFacadeComponent(myLanguageRegistry, myLanguageScopeFactory, myTypecheckingBackend));
}
@Override
public void dispose() {
super.dispose();
this.myTypecheckingBackend = null;
this.myLanguageScopeFactory = null;
this.myTypecheckingFacadeComponent = null;
}
@Override
public <T extends CoreComponent> T findComponent(@NotNull Class<T> componentClass) {
if (TypecheckingFacadeComponent.class.equals(componentClass)) {
return componentClass.cast(myTypecheckingFacadeComponent);
}
if (LanguageScopeFactory.class.equals(componentClass)) {
return componentClass.cast(myLanguageScopeFactory);
}
if (TypecheckingBackend.class.equals(componentClass)) {
return componentClass.cast(myTypecheckingBackend);
}
return null;
}
}