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package com.github.javaparser.symbolsolver;
import com.github.javaparser.ParseException;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.body.ClassOrInterfaceDeclaration;
import com.github.javaparser.ast.body.MethodDeclaration;
import com.github.javaparser.ast.expr.Expression;
import com.github.javaparser.ast.expr.LambdaExpr;
import com.github.javaparser.ast.expr.MethodCallExpr;
import com.github.javaparser.ast.stmt.ExpressionStmt;
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.AbstractResolutionTest;
import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
import org.junit.Test;
import java.util.List;
import static org.junit.Assert.assertEquals;
public class Issue186 extends AbstractResolutionTest {
@Test
public void lambdaFlatMapIssue() {
CompilationUnit cu = parseSample("Issue186");
ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "JavaTest");
MethodDeclaration methodDeclaration = Navigator.demandMethod(clazz, "foo");
MethodCallExpr methodCallExpr = Navigator.findMethodCall(methodDeclaration, "flatMap").get();
TypeSolver typeSolver = new ReflectionTypeSolver();
JavaParserFacade javaParserFacade = JavaParserFacade.get(typeSolver);
assertEquals("java.util.stream.Stream<java.lang.String>", javaParserFacade.getType(methodCallExpr).describe());
}
@Test
public void lambdaPrimitivesIssue() {
CompilationUnit cu = parseSample("Issue186");
ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "JavaTest");
MethodDeclaration methodDeclaration = Navigator.demandMethod(clazz, "bar");
List<LambdaExpr> lambdas = methodDeclaration.findAll(LambdaExpr.class);
TypeSolver typeSolver = new ReflectionTypeSolver();
JavaParserFacade javaParserFacade = JavaParserFacade.get(typeSolver);
assertEquals("java.util.function.Predicate<? super java.lang.String>", javaParserFacade.getType(lambdas.get(0)).describe());
assertEquals("java.util.function.Function<? super java.lang.String, ? extends java.lang.Integer>", javaParserFacade.getType(lambdas.get(1)).describe());
assertEquals("java.util.function.Predicate<? super java.lang.Integer>", javaParserFacade.getType(lambdas.get(2)).describe());
}
}
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