TestHelper.java

/*
 * ******************************************************************************
 * MontiCore Language Workbench
 * Copyright (c) 2015, MontiCore, All rights reserved.
 *
 * This project is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3.0 of the License, or (at your option) any later version.
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this project. If not, see <http://www.gnu.org/licenses/>.
 * ******************************************************************************
 */

package de.monticore.codegen.mc2cd;

import de.monticore.MontiCoreScript;
import de.monticore.generating.templateengine.GlobalExtensionManagement;
import de.monticore.grammar.grammar._ast.ASTMCGrammar;
import de.monticore.io.paths.ModelPath;
import de.monticore.symboltable.GlobalScope;
import de.monticore.types.types._ast.ASTSimpleReferenceType;
import de.monticore.types.types._ast.ASTType;
import de.monticore.umlcd4a.cd4analysis._ast.ASTCDClass;
import de.monticore.umlcd4a.cd4analysis._ast.ASTCDCompilationUnit;
import de.monticore.umlcd4a.cd4analysis._ast.ASTCDInterface;
import de.se_rwth.commons.Names;
import parser.MCGrammarParser;

import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Optional;

/**
 * @author Sebastian Oberhoff
 */
public class TestHelper {

  /**
   * Convenience bundling of parsing and transformation
   *
   * @param model the .mc4 file that is to be parsed and transformed
   * @return the root node of the resulting CD AST
   */
  public static Optional<ASTCDCompilationUnit> parseAndTransform(Path model) {
    Optional<ASTMCGrammar> grammar = MCGrammarParser.parse(model);
    if (!grammar.isPresent()) {
      return Optional.empty();
    }
    MontiCoreScript mc = new MontiCoreScript();
    GlobalScope symbolTable = mc.initSymbolTable(new ModelPath(Paths.get("src/test/resources")));
    mc.createSymbolsFromAST(symbolTable, grammar.get());
    ASTCDCompilationUnit cdCompilationUnit = new MC2CDTransformation(
        new GlobalExtensionManagement()).apply(grammar.get());
    return Optional.of(cdCompilationUnit);
  }

  public static Optional<ASTCDClass> getCDClass(ASTCDCompilationUnit cdCompilationUnit, String cdClassName) {
    return cdCompilationUnit.getCDDefinition().getCDClasses().stream()
        .filter(cdClass -> cdClass.getName().equals(cdClassName))
        .findAny();
  }

  public static Optional<ASTCDInterface> getCDInterface(ASTCDCompilationUnit cdCompilationUnit, String cdInterfaceName) {
    return cdCompilationUnit.getCDDefinition().getCDInterfaces().stream()
        .filter(cdClass -> cdClass.getName().equals(cdInterfaceName))
        .findAny();
  }

  public static boolean isListOfType(ASTType typeRef, String typeArg) {
    if (!TransformationHelper.typeToString(typeRef).equals("java.util.List")) {
      return false;
    }
    if (!(typeRef instanceof ASTSimpleReferenceType)) {
      return false;
    }
    ASTSimpleReferenceType type = (ASTSimpleReferenceType) typeRef;
    if (!type.getTypeArguments().isPresent()) {
      return false;
    }
    if (type.getTypeArguments().get().getTypeArguments().size() != 1) {
      return false;
    }
    if (!(type.getTypeArguments().get().getTypeArguments()
        .get(0) instanceof ASTSimpleReferenceType)) {
      return false;
    }
    return Names.getQualifiedName(
        ((ASTSimpleReferenceType) type.getTypeArguments().get().getTypeArguments().get(0))
            .getNames())
        .equals(typeArg);
  }
}