method refs: resolve constructors; static problems

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/methodRef/ConstructorRefs.java

@@ -0,0 +1,76 @@
+class MyTest {
+    MyTest() {
+    }
+
+    interface I {
+        MyTest m();
+    }
+
+    static void test(I s) {
+        s.m();
+    }
+
+    public static void main(String[] args) {
+        I s = MyTest::new;
+        s.m();
+        test(MyTest::new);
+    }
+}
+
+class MyTest1 {
+
+    MyTest1(Object o) {
+    }
+
+    MyTest1(Number n) {
+    }
+
+    interface I {
+        MyTest1 m(Object o);
+    }
+
+    static void test(I s, Object arg) {
+        s.m(arg);
+    }
+
+    public static void main(String[] args) {
+        I s = MyTest1::new;
+        s.m("");
+        test(MyTest1::new, "");
+    }
+}
+
+class MyTest2<X> {
+    MyTest2(X x) {
+    }
+
+    interface I<Z> {
+        MyTest2<Z> m(Z z);
+    }
+
+    static <Y> void test(I<Y> s, Y arg) {
+        s.m(arg);
+    }
+
+    public static void main(String[] args) {
+        I<String> s = MyTest2<String>::new;
+        s.m("");
+        //todo test(MyTest2<String>::new, "");
+    }
+}
+
+class MyTest3<X> {
+
+    MyTest3(X x) { }
+
+    interface I<Z> {
+        MyTest3<Z> m(Z z);
+    }
+
+    static void test(I<Integer> s) {   }
+
+    public static void main(String[] args) {
+        <error descr="Incompatible types. Found: '<method reference>', required: 'MyTest3.I<java.lang.Integer>'">I<Integer> s = MyTest3<String>::new;</error>
+        test<error descr="'test(MyTest3.I<java.lang.Integer>)' in 'MyTest3' cannot be applied to '(<method reference>)'">(MyTest3<String>::new)</error>;
+    }
+}