1 files changed, 112 insertions, 0 deletions
diff --git a/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/resolution/javaparser/contexts/LambdaExprContextResolutionTest.java b/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/resolution/javaparser/contexts/LambdaExprContextResolutionTest.java
new file mode 100644
index 000000000..63e513c7a
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+++ b/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/resolution/javaparser/contexts/LambdaExprContextResolutionTest.java
@@ -0,0 +1,112 @@
+/*
+ * 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.javaparser.contexts;
+
+import com.github.javaparser.ast.CompilationUnit;
+import com.github.javaparser.ast.body.MethodDeclaration;
+import com.github.javaparser.ast.body.VariableDeclarator;
+import com.github.javaparser.ast.expr.LambdaExpr;
+import com.github.javaparser.ast.expr.MethodCallExpr;
+import com.github.javaparser.ast.stmt.ReturnStmt;
+import com.github.javaparser.symbolsolver.core.resolution.Context;
+import com.github.javaparser.symbolsolver.javaparser.Navigator;
+import com.github.javaparser.symbolsolver.javaparsermodel.contexts.LambdaExprContext;
+import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
+import com.github.javaparser.symbolsolver.model.resolution.Value;
+import com.github.javaparser.symbolsolver.resolution.AbstractResolutionTest;
+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.Before;
+import org.junit.Test;
+
+import java.io.File;
+import java.util.Optional;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author Malte Langkabel
+ */
+public class LambdaExprContextResolutionTest extends AbstractResolutionTest {
+
+    private TypeSolver typeSolver;
+
+    @Before
+    public void setup() {
+        typeSolver = new ReflectionTypeSolver();
+    }
+
+    @Test
+    public void solveParameterOfLambdaInMethodCallExpr() {
+        CompilationUnit cu = parseSample("Lambda");
+
+        com.github.javaparser.ast.body.ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "Agenda");
+        MethodDeclaration method = Navigator.demandMethod(clazz, "lambdaMap");
+        ReturnStmt returnStmt = Navigator.findReturnStmt(method);
+        MethodCallExpr methodCallExpr = (MethodCallExpr) returnStmt.getExpression().get();
+        LambdaExpr lambdaExpr = (LambdaExpr) methodCallExpr.getArguments().get(0);
+
+        Context context = new LambdaExprContext(lambdaExpr, typeSolver);
+
+        Optional<Value> ref = context.solveSymbolAsValue("p", typeSolver);
+        assertTrue(ref.isPresent());
+        assertEquals("? super java.lang.String", ref.get().getType().describe());
+    }
+
+    @Test
+    public void solveParameterOfLambdaInFieldDecl() {
+        CompilationUnit cu = parseSample("Lambda");
+
+        com.github.javaparser.ast.body.ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "Agenda");
+        VariableDeclarator field = Navigator.demandField(clazz, "functional");
+        LambdaExpr lambdaExpr = (LambdaExpr) field.getInitializer().get();
+
+        File src = new File("src/test/resources");
+        CombinedTypeSolver combinedTypeSolver = new CombinedTypeSolver();
+        combinedTypeSolver.add(new ReflectionTypeSolver());
+        combinedTypeSolver.add(new JavaParserTypeSolver(adaptPath(src)));
+
+        Context context = new LambdaExprContext(lambdaExpr, combinedTypeSolver);
+
+        Optional<Value> ref = context.solveSymbolAsValue("p", typeSolver);
+        assertTrue(ref.isPresent());
+        assertEquals("java.lang.String", ref.get().getType().describe());
+    }
+
+    @Test
+    public void solveParameterOfLambdaInVarDecl() {
+        CompilationUnit cu = parseSample("Lambda");
+
+        com.github.javaparser.ast.body.ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "Agenda");
+        MethodDeclaration method = Navigator.demandMethod(clazz, "testFunctionalVar");
+        VariableDeclarator varDecl = Navigator.demandVariableDeclaration(method, "a").get();
+        LambdaExpr lambdaExpr = (LambdaExpr) varDecl.getInitializer().get();
+
+        File src = adaptPath(new File("src/test/resources"));
+        CombinedTypeSolver combinedTypeSolver = new CombinedTypeSolver();
+        combinedTypeSolver.add(new ReflectionTypeSolver());
+        combinedTypeSolver.add(new JavaParserTypeSolver(src));
+
+        Context context = new LambdaExprContext(lambdaExpr, combinedTypeSolver);
+
+        Optional<Value> ref = context.solveSymbolAsValue("p", typeSolver);
+        assertTrue(ref.isPresent());
+        assertEquals("java.lang.String", ref.get().getType().describe());
+    }
+}