/*
* Copyright 2003-2015 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.languageScope;
import jetbrains.mps.smodel.Language;
import jetbrains.mps.smodel.SModelOperations;
import jetbrains.mps.smodel.adapter.MetaAdapterByDeclaration;
import jetbrains.mps.util.Computable;
import org.jetbrains.mps.openapi.language.SLanguage;
import org.jetbrains.mps.openapi.model.SModel;
import java.util.Collection;
import java.util.Collections;
public class LanguageScopeExecutor {
public static <T> T execWithModelScope(SModel sModel, Computable<T> computable) {
LanguageScope languageScope = sModel == null ? LanguageScope.getGlobal() :
LanguageScopeFactory.getInstance().getLanguageScope(SModelOperations.getAllLanguageImports(sModel));
try{
LanguageScope.pushCurrent(languageScope, computable);
return computable.compute();
}
finally {
LanguageScope.popCurrent(languageScope, computable);
}
}
public static <T> T execWithLanguageScope(Language lang, Computable<T> computable) {
LanguageScope languageScope = lang == null ? LanguageScope.getGlobal() :
LanguageScopeFactory.getInstance().getLanguageScope(
Collections.singleton(MetaAdapterByDeclaration.getLanguage(lang)));
try{
LanguageScope.pushCurrent(languageScope, computable);
return computable.compute();
}
finally {
LanguageScope.popCurrent(languageScope, computable);
}
}
public static <T> T execWithTwoLanguageScope(Language lang1, Language lang2, Computable<T> computable) {
if (lang1 == null || lang2 == null) return execWithLanguageScope(lang1 != null ? lang1 : lang2, computable);
LanguageScope languageScope = LanguageScopeFactory.getInstance().getLanguageScope(
Collections.singleton(MetaAdapterByDeclaration.getLanguage(lang1)),
Collections.singleton(MetaAdapterByDeclaration.getLanguage(lang2)));
try{
LanguageScope.pushCurrent(languageScope, computable);
return computable.compute();
}
finally {
LanguageScope.popCurrent(languageScope, computable);
}
}
public static <T> T execWithMultiLanguageScope(Collection<SLanguage> langs, Computable<T> computable) {
LanguageScope languageScope = LanguageScopeFactory.getInstance().getLanguageScope(langs);
try{
LanguageScope.pushCurrent(languageScope, computable);
return computable.compute();
}
finally {
LanguageScope.popCurrent(languageScope, computable);
}
}
}