Regression test of the optional invocation of a foreign function.

graal-js/src/com.oracle.truffle.js.test/js/GR-54723.js

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+/*
+ * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Licensed under the Universal Permissive License v 1.0 as shown at http://oss.oracle.com/licenses/upl.
+ */
+
+load("assert.js");
+
+var time = java.lang.System.currentTimeMillis?.();
+assertSame('number', typeof time);
+
+var result = java.lang.System.iDontExist?.();
+assertSame('undefined', typeof result);

graal-js/src/com.oracle.truffle.js.test/src/com/oracle/truffle/js/test/regress/GR54723.java

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+/*
+ * Copyright (c) 2024, 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * The Universal Permissive License (UPL), Version 1.0
+ *
+ * Subject to the condition set forth below, permission is hereby granted to any
+ * person obtaining a copy of this software, associated documentation and/or
+ * data (collectively the "Software"), free of charge and under any and all
+ * copyright rights in the Software, and any and all patent rights owned or
+ * freely licensable by each licensor hereunder covering either (i) the
+ * unmodified Software as contributed to or provided by such licensor, or (ii)
+ * the Larger Works (as defined below), to deal in both
+ *
+ * (a) the Software, and
+ *
+ * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+ * one is included with the Software each a "Larger Work" to which the Software
+ * is contributed by such licensors),
+ *
+ * without restriction, including without limitation the rights to copy, create
+ * derivative works of, display, perform, and distribute the Software and make,
+ * use, sell, offer for sale, import, export, have made, and have sold the
+ * Software and the Larger Work(s), and to sublicense the foregoing rights on
+ * either these or other terms.
+ *
+ * This license is subject to the following condition:
+ *
+ * The above copyright notice and either this complete permission notice or at a
+ * minimum a reference to the UPL must be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.oracle.truffle.js.test.regress;
+
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Map;
+
+import org.graalvm.polyglot.Context;
+import org.graalvm.polyglot.Value;
+import org.graalvm.polyglot.proxy.ProxyExecutable;
+import org.graalvm.polyglot.proxy.ProxyObject;
+import org.junit.Test;
+
+import com.oracle.truffle.js.test.JSTest;
+
+public class GR54723 {
+
+    @Test
+    public void testIt() {
+        try (Context ctx = JSTest.newContextBuilder().build()) {
+            ProxyObject internal = ProxyObject.fromMap(Map.of("value", "internalValue"));
+            ProxyExecutable proxyExecutable = args -> Value.asValue("test");
+            Map<String, Object> val = Map.of("func", proxyExecutable, "object", internal);
+            ProxyObject p = ProxyObject.fromMap(val);
+
+            ctx.getBindings("js").putMember("p", p);
+
+            assertSame("internalValue", ctx.eval("js", "p?.object?.value").asString());
+            assertTrue(ctx.eval("js", "p?.nonexistent?.value").isNull());
+            assertSame("test", ctx.eval("js", "p?.func?.()").asString());
+            assertTrue(ctx.eval("js", "p?.nonexistent?.()").isNull());
+        }
+    }
+
+}