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53 lines
839 B
53 lines
839 B
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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package codetoanalyze.java.tracing;
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interface I {
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T2 get();
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}
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class A implements I {
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public T2 get() {
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return new T2();
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}
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}
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class B extends A {
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public T2 get() {
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return null;
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}
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}
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public class LazyDynamicDispatchExample {
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static T2 fromSupertype(A a) {
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return a.get();
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}
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static T2 fromInterface(I i) {
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return i.get();
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}
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static void callWithSubtype() {
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B b = new B();
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fromSupertype(b).f();
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}
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static void shouldNotReportLocalVarTypeIsKnown() {
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A a = new A();
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fromInterface(a).f();
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}
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static void shouldReportLocalVarTypeIsKnown() {
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B b = new B();
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fromInterface(b).f();
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}
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}
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