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FieldsResolutionTest.java
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FieldsResolutionTest.java
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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.ParseException;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.body.MethodDeclaration;
import com.github.javaparser.ast.expr.*;
import com.github.javaparser.ast.stmt.ExpressionStmt;
import com.github.javaparser.ast.stmt.ReturnStmt;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration;
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.SymbolReference;
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 static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class FieldsResolutionTest extends AbstractResolutionTest {
@Test
public void accessClassFieldThroughThis() throws ParseException {
CompilationUnit cu = parseSample("AccessClassMemberThroughThis");
com.github.javaparser.ast.body.ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "AccessClassMemberThroughThis");
MethodDeclaration method = Navigator.demandMethod(clazz, "getLabel2");
ReturnStmt returnStmt = (ReturnStmt) method.getBody().get().getStatements().get(0);
Expression expression = returnStmt.getExpression().get();
ResolvedType ref = JavaParserFacade.get(new ReflectionTypeSolver()).getType(expression);
assertEquals("java.lang.String", ref.describe());
}
@Test
public void accessClassFieldThroughThisWithCompetingSymbolInParentContext() throws ParseException {
CompilationUnit cu = parseSample("AccessClassMemberThroughThis");
com.github.javaparser.ast.body.ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "AccessClassMemberThroughThis");
MethodDeclaration method = Navigator.demandMethod(clazz, "setLabel");
ExpressionStmt expressionStmt = (ExpressionStmt) method.getBody().get().getStatements().get(0);
AssignExpr assignExpr = (AssignExpr) expressionStmt.getExpression();
FieldAccessExpr fieldAccessExpr = (FieldAccessExpr) assignExpr.getTarget();
File src = adaptPath(new File("src/test/resources"));
CombinedTypeSolver typeSolver = new CombinedTypeSolver(new JavaParserTypeSolver(src), new ReflectionTypeSolver());
SymbolSolver symbolSolver = new SymbolSolver(typeSolver);
SymbolReference<? extends ResolvedValueDeclaration> ref = symbolSolver.solveSymbol(fieldAccessExpr.getField().getId(), fieldAccessExpr);
assertTrue(ref.isSolved());
assertTrue(ref.getCorrespondingDeclaration().isField());
}
@Test
public void accessEnumFieldThroughThis() throws ParseException {
CompilationUnit cu = parseSample("AccessEnumMemberThroughThis");
com.github.javaparser.ast.body.EnumDeclaration enumDecl = Navigator.demandEnum(cu, "AccessEnumMemberThroughThis");
MethodDeclaration method = Navigator.demandMethod(enumDecl, "getLabel");
SimpleName expression = Navigator.findSimpleName(method, "label");
SymbolReference ref = JavaParserFacade.get(new ReflectionTypeSolver()).solve(expression);
assertTrue(ref.isSolved());
assertEquals("label", ref.getCorrespondingDeclaration().getName());
}
@Test
public void accessEnumMethodThroughThis() throws ParseException {
CompilationUnit cu = parseSample("AccessEnumMemberThroughThis");
com.github.javaparser.ast.body.EnumDeclaration enumDecl = Navigator.demandEnum(cu, "AccessEnumMemberThroughThis");
MethodDeclaration method = Navigator.demandMethod(enumDecl, "getLabel2");
ReturnStmt returnStmt = (ReturnStmt) method.getBody().get().getStatements().get(0);
Expression expression = returnStmt.getExpression().get();
ResolvedType ref = JavaParserFacade.get(new ReflectionTypeSolver()).getType(expression);
assertEquals("java.lang.String", ref.describe());
}
@Test
public void accessFieldThroughSuper() throws ParseException {
CompilationUnit cu = parseSample("AccessThroughSuper");
com.github.javaparser.ast.body.ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "AccessThroughSuper.SubClass");
MethodDeclaration method = Navigator.demandMethod(clazz, "fieldTest");
ReturnStmt returnStmt = (ReturnStmt) method.getBody().get().getStatements().get(0);
Expression expression = returnStmt.getExpression().get();
ResolvedType ref = JavaParserFacade.get(new ReflectionTypeSolver()).getType(expression);
assertEquals("java.lang.String", ref.describe());
}
}