Issue2764Test.java

/*
 * Copyright (C) 2013-2024 The JavaParser Team.
 *
 * This file is part of JavaParser.
 *
 * JavaParser can be used either under the terms of
 * a) the GNU Lesser General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * b) the terms of the Apache License
 *
 * You should have received a copy of both licenses in LICENCE.LGPL and
 * LICENCE.APACHE. Please refer to those files for details.
 *
 * JavaParser 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.
 */

package com.github.javaparser.symbolsolver;

import static org.junit.jupiter.api.Assertions.assertTrue;

import com.github.javaparser.*;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.expr.NameExpr;
import com.github.javaparser.ast.expr.UnaryExpr;
import com.github.javaparser.resolution.TypeSolver;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration;
import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

public class Issue2764Test {
    private JavaParser javaParser;

    @BeforeEach
    void setUp() {
        TypeSolver typeSolver = new ReflectionTypeSolver();
        ParserConfiguration config = new ParserConfiguration();
        config.setSymbolResolver(new JavaSymbolSolver(typeSolver));
        javaParser = new JavaParser(config);
    }

    @Test
    void resolveUnaryExpr() {
        String code = "class A {" + "  void a() {" + "    int e;" + "    for(e++;;){}" + "  }" + "}";

        ParseResult<CompilationUnit> parseResult =
                javaParser.parse(ParseStart.COMPILATION_UNIT, Providers.provider(code));
        assertTrue(parseResult.isSuccessful());
        assertTrue(parseResult.getResult().isPresent());

        CompilationUnit cu = parseResult.getResult().get();
        NameExpr name = (NameExpr) cu.findFirst(UnaryExpr.class).get().getExpression();
        ResolvedValueDeclaration resolve = name.resolve();

        assertTrue("int".contentEquals(resolve.getType().describe()));
    }
}