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/*

 * @test

 * @bug 8131027

 * @summary Test Type Inference

 * @library /tools/lib

 * @modules jdk.compiler/com.sun.tools.javac.api

 *          jdk.compiler/com.sun.tools.javac.main

 *          jdk.jdeps/com.sun.tools.javap

 * @run testng InferTypeTest

 */

import org.testng.annotations.Test;

@Test

public class InferTypeTest extends KullaTesting {

    public void testTypeInference() {

        assertInferredType("1", "int");

        assertEval("import java.util.*;");

        assertInferredType("new ArrayList<String>()", "ArrayList<String>");

        assertInferredType("null", "Object");

        assertInferredType("1 + ", null); //incomplete

        assertInferredType("undef", null);  //unresolvable

        assertEval("List<String> l1;");

        assertEval("List<? extends String> l2;");

        assertEval("List<? super String> l3;");

        assertInferredType("l1", "List<String>");

        assertInferredType("l2", "List<? extends String>");

        assertInferredType("l3", "List<? super String>");

        assertInferredType("l1.get(0)", "String");

        assertInferredType("l2.get(0)", "String");

        assertInferredType("l3.get(0)", "Object");

        assertInferredType("\"\" + 1", "String");

        assertEval("int i = 0;");

        assertInferredType("i++", "int");

        assertInferredType("++i", "int");

        assertInferredType("i == 0 ? l1.get(0) : l2.get(0)", "String");

        assertInferredType("", null);

        assertInferredType("void test() { }", null);

        assertInferredType("class Test { }", null);

        assertInferredType("enum Test { A; }", null);

        assertInferredType("interface Test { }", null);

        assertInferredType("@interface Test { }", null);

        assertInferredType("Object o;", null);

    }

}