checker/tests/guieffect/TestProgram.java

import org.checkerframework.checker.guieffect.qual.AlwaysSafe;
import org.checkerframework.checker.guieffect.qual.UI;
import org.checkerframework.checker.guieffect.qual.UIEffect;
import packagetests.SafeByDecl;
import packagetests.UIByPackageDecl;

public class TestProgram {
  public void nonUIStuff(
      final UIElement e,
      final GenericTaskUIConsumer uicons,
      final GenericTaskSafeConsumer safecons) {
    // :: error: (call.ui)
    e.dangerous(); // should be bad
    e.runOnUIThread(
        new IAsyncUITask() {
          final UIElement e2 = e;

          @Override
          public void doStuff() { // should inherit UI effect
            e2.dangerous(); // should be okay
          }
        });
    uicons.runAsync(
        new @UI IGenericTask() {
          final UIElement e2 = e;

          @Override
          public void doGenericStuff() { // Should be inst. w/ @UI eff.
            e2.dangerous(); // should be okay
          }
        });
    safecons.runAsync(
        new @AlwaysSafe IGenericTask() {
          final UIElement e2 = e;

          @Override
          public void doGenericStuff() { // Should be inst. w/ @AlwaysSafe
            // :: error: (call.ui)
            e2.dangerous(); // should be an error
            safecons.runAsync(this); // Should be okay, this:@AlwaysSafe
          }
        });
    safecons.runAsync(
        // :: error: (argument)
        new @UI IGenericTask() {
          final UIElement e2 = e;

          @Override
          public void doGenericStuff() { // Should be inst. w/ @UI
            e2.dangerous(); // should be ok
            // :: error: (argument)
            safecons.runAsync(this); // Should be error, this:@UI
          }
        });
    // Test that the package annotation works
    // :: error: (call.ui)
    UIByPackageDecl.implicitlyUI();
    // Test that @SafeType works: SafeByDecl is inside a @UIPackage
    SafeByDecl.safeByTypeDespiteUIPackage();
    safecons.runAsync(
        // :: error: (argument)
        new IGenericTask() {
          @Override
          public void doGenericStuff() {
            // Safe here due to anonymous inner class effect inference, but will trigger
            // an error above due to safecons.runAsync not taking an @UI IGenericTask.
            UIByPackageDecl.implicitlyUI();
          }
        });
    safecons.runAsync(
        new IGenericTask() {
          @Override
          @UIEffect
          // :: error: (override.effect.nonui)
          public void doGenericStuff() {
            UIByPackageDecl.implicitlyUI();
          }
        });
  }
}