Examples with Context org.graalvm.polyglot.Context used on opensource projects

Example 16 with Context

use of org.graalvm.polyglot.Context in project graal by oracle.

the class LanguageSPITest method testImplicitCloseFromOtherThread.

@Test
public void testImplicitCloseFromOtherThread() throws InterruptedException {
    Engine engine = Engine.create();
    Context context = Context.newBuilder().engine(engine).build();
    langContext = null;
    context.initialize(LanguageSPITestLanguage.ID);
    Thread t = new Thread(new Runnable() {

        public void run() {
            engine.close();
        }
    });
    t.start();
    t.join(10000);
    assertEquals(1, langContext.disposeCalled);
}

Example 17 with Context

use of org.graalvm.polyglot.Context in project graal by oracle.

the class LanguageSPITest method testLazyOptionInit.

@Test
@SuppressWarnings("all")
public void testLazyOptionInit() {
    AtomicInteger getOptionDescriptors = new AtomicInteger(0);
    AtomicInteger iterator = new AtomicInteger(0);
    AtomicInteger get = new AtomicInteger(0);
    ProxyLanguage.setDelegate(new ProxyLanguage() {

        final OptionKey<String> option = new OptionKey<>("");

        final List<OptionDescriptor> descriptors;

        {
            descriptors = new ArrayList<>();
            descriptors.add(OptionDescriptor.newBuilder(option, ProxyLanguage.ID + ".option").build());
        }

        @Override
        protected OptionDescriptors getOptionDescriptors() {
            getOptionDescriptors.incrementAndGet();
            return new OptionDescriptors() {

                public Iterator<OptionDescriptor> iterator() {
                    iterator.incrementAndGet();
                    return descriptors.iterator();
                }

                public OptionDescriptor get(String optionName) {
                    get.incrementAndGet();
                    for (OptionDescriptor optionDescriptor : descriptors) {
                        if (optionDescriptor.getName().equals(optionName)) {
                            return optionDescriptor;
                        }
                    }
                    return null;
                }
            };
        }
    });
    Context c = Context.create();
    c.close();
    assertEquals(0, getOptionDescriptors.get());
    assertEquals(0, iterator.get());
    assertEquals(0, get.get());
    c = Context.newBuilder(ProxyLanguage.ID).option(ProxyLanguage.ID + ".option", "foobar").build();
    assertEquals(1, getOptionDescriptors.get());
    assertEquals(1, get.get());
    boolean assertionsEnabled = false;
    assert assertionsEnabled = true;
    if (assertionsEnabled) {
        // with assertions enabled we assert the options.
        assertEquals(1, iterator.get());
    } else {
        // for valid options we should not need the iterator
        assertEquals(0, iterator.get());
    }
    c.close();
    // test lazyness when using meta-data
    getOptionDescriptors.set(0);
    iterator.set(0);
    get.set(0);
    c = Context.create();
    OptionDescriptors descriptors = c.getEngine().getLanguages().get(ProxyLanguage.ID).getOptions();
    assertEquals(1, getOptionDescriptors.get());
    if (assertionsEnabled) {
        // with assertions enabled we assert the options.
        assertEquals(1, iterator.get());
    } else {
        // for valid options we should not need the iterator
        assertEquals(0, iterator.get());
    }
    assertEquals(0, get.get());
    for (OptionDescriptor descriptor : descriptors) {
    }
    assertEquals(1, getOptionDescriptors.get());
    if (assertionsEnabled) {
        // with assertions enabled we assert the options.
        assertEquals(2, iterator.get());
    } else {
        // for valid options we should not need the iterator
        assertEquals(1, iterator.get());
    }
    assertEquals(0, get.get());
    assertNotNull(descriptors.get(ProxyLanguage.ID + ".option"));
    assertEquals(1, getOptionDescriptors.get());
    assertEquals(1, get.get());
    c.close();
}

Example 18 with Context

use of org.graalvm.polyglot.Context in project graal by oracle.

the class LanguageSPITest method testExportSymbolInCreate.

@SuppressWarnings("deprecation")
@Test
public void testExportSymbolInCreate() {
    ProxyLanguage.setDelegate(new ProxyLanguage() {

        @Override
        protected LanguageContext createContext(com.oracle.truffle.api.TruffleLanguage.Env env) {
            env.exportSymbol("symbol", env.asGuestValue(env));
            return super.createContext(env);
        }
    });
    Context c = Context.create();
    c.initialize(ProxyLanguage.ID);
    assertTrue(c.importSymbol("symbol").isHostObject());
    c.close();
}

Example 19 with Context

use of org.graalvm.polyglot.Context in project graal by oracle.

the class LanguageSPITest method testBindingsWithDefaultScope.

@Test
public void testBindingsWithDefaultScope() {
    Context c = Context.create();
    Value bindings = c.getBindings(ProxyLanguage.ID);
    assertTrue(bindings.hasMembers());
    assertFalse(bindings.hasMember(""));
    assertTrue(bindings.getMemberKeys().isEmpty());
    assertNull(bindings.getMember(""));
    ValueAssert.assertFails(() -> bindings.putMember("", ""), UnsupportedOperationException.class);
    assertFalse(bindings.removeMember(""));
    ValueAssert.assertValue(c, bindings);
    c.close();
}

Example 20 with Context

use of org.graalvm.polyglot.Context in project graal by oracle.

the class LanguageSPITest method testErrorInFindMetaObject.

@Test
public void testErrorInFindMetaObject() {
    ProxyLanguage.setDelegate(new ProxyLanguage() {

        @Override
        protected Object findMetaObject(LanguageContext context, Object value) {
            throw new RuntimeException();
        }

        @Override
        protected CallTarget parse(com.oracle.truffle.api.TruffleLanguage.ParsingRequest request) throws Exception {
            return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(42));
        }
    });
    Context c = Context.create();
    Value v = c.eval(ProxyLanguage.ID, "");
    testFails(() -> v.getMetaObject());
    testFails(() -> v.getMetaObject());
    c.close();
}