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/*
* Copyright 2016 Federico Tomassetti
*
* 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 com.github.javaparser.symbolsolver.resolution;
import com.github.javaparser.JavaParser;
import com.github.javaparser.ParseException;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.expr.NameExpr;
import com.github.javaparser.resolution.declarations.ResolvedTypeParameterDeclaration;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.javaparser.Navigator;
import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFacade;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.CombinedTypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.JavaParserTypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
/**
* We analize a more recent version of JavaParser, after the project moved to Java 8.
*/
public class AnalyseNewJavaParserHelpersTest extends AbstractResolutionTest {
private static final File src = adaptPath(new File("src/test/test_sourcecode/javaparser_new_src/javaparser-core"));
private static TypeSolver TYPESOLVER = typeSolver();
private static TypeSolver typeSolver() {
CombinedTypeSolver combinedTypeSolver = new CombinedTypeSolver();
combinedTypeSolver.add(new ReflectionTypeSolver());
combinedTypeSolver.add(new JavaParserTypeSolver(src));
combinedTypeSolver.add(new JavaParserTypeSolver(adaptPath(new File("src/test/test_sourcecode/javaparser_new_src/javaparser-generated-sources"))));
return combinedTypeSolver;
}
private CompilationUnit parse(String fileName) throws IOException {
File sourceFile = new File(src.getAbsolutePath() + "/" + fileName + ".java");
return JavaParser.parse(sourceFile);
}
// @Test
// public void o1TypeIsCorrect() throws IOException, ParseException {
// CompilationUnit cu = parse("com/github/javaparser/utils/PositionUtils");
// NameExpr o1 = Navigator.findAllNodesOfGivenClass(cu, NameExpr.class).stream().filter(it -> it.getName()!=null && it.getName().equals("o1")).findFirst().get();
// System.out.println(JavaParserFacade.get(TYPESOLVER).solve(o1).getCorrespondingDeclaration().getType());
// }
//
// @Test
// public void o2TypeIsCorrect() throws IOException, ParseException {
// CompilationUnit cu = parse("com/github/javaparser/utils/PositionUtils");
// NameExpr o2 = Navigator.findAllNodesOfGivenClass(cu, NameExpr.class).stream().filter(it -> it.getName()!=null && it.getName().equals("o2")).findFirst().get();
// System.out.println(JavaParserFacade.get(TYPESOLVER).solve(o2).getCorrespondingDeclaration().getType());
// }
//
// // To calculate the type of o1 and o2 I need to first calculate the type of the lambda
// @Test
// public void lambdaTypeIsCorrect() throws IOException, ParseException {
// CompilationUnit cu = parse("com/github/javaparser/utils/PositionUtils");
// LambdaExpr lambda = Navigator.findAllNodesOfGivenClass(cu, LambdaExpr.class).stream().filter(it -> it.getRange().begin.line == 50).findFirst().get();
// System.out.println(JavaParserFacade.get(TYPESOLVER).getType(lambda));
// }
@Test
public void nodesTypeIsCorrect() throws IOException {
CompilationUnit cu = parse("com/github/javaparser/utils/PositionUtils");
NameExpr nodes = cu.findAll(NameExpr.class).stream().filter(it -> it.getName() != null && it.getName().getId().equals("nodes")).findFirst().get();
ResolvedType type = JavaParserFacade.get(TYPESOLVER).solve(nodes).getCorrespondingDeclaration().getType();
assertEquals("java.util.List<T>", type.describe());
assertEquals(1, type.asReferenceType().typeParametersValues().size());
assertEquals(true, type.asReferenceType().typeParametersValues().get(0).isTypeVariable());
assertEquals("T", type.asReferenceType().typeParametersValues().get(0).asTypeParameter().getName());
assertEquals("com.github.javaparser.utils.PositionUtils.sortByBeginPosition(java.util.List<T>).T", type.asReferenceType().typeParametersValues().get(0).asTypeParameter().getQualifiedName());
assertEquals(1, type.asReferenceType().typeParametersValues().get(0).asTypeParameter().getBounds().size());
ResolvedTypeParameterDeclaration.Bound bound = type.asReferenceType().typeParametersValues().get(0).asTypeParameter().getBounds().get(0);
assertEquals(true, bound.isExtends());
assertEquals("com.github.javaparser.ast.Node", bound.getType().describe());
}
}
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