Add a test for CI

Author: olyagpl

.github/workflows/web-image-export-function-demo.yml

@@ -2,11 +2,11 @@ name: web-image-export-java-function
 on:
   push:
     paths:
-      - 'native-image/web-image/export-java-function/**'
+      - 'web-image/export-java-function/**'
       - '.github/workflows/web-image-export-function-demo.yml'
   pull_request:
     paths:
-      - 'native-image/web-image/export-java-function/**'
+      - 'web-image/export-java-function/**'
       - '.github/workflows/web-image-export-java-function.yml'
   schedule:
     - cron: "0 0 1 * *"  # run every month
@@ -36,11 +36,7 @@ jobs:
           echo "$(pwd)/binaryen-version_122/bin" >> "$GITHUB_PATH"
       - name: Run 'native-image/wasm-javac'
         run: |
-          cd native-image/web-image/export-java-function
+          cd web-image/export-java-function
           javac Adder.java
           native-image --tool:svm-wasm -H:-AutoRunVM Adder
-          jwebserver -p 8000 &
-          SERVER_PID=$!
-          sleep 5
-          curl -i http://127.0.0.1:8000
-          kill $SERVER_PID
+          node --experimental-wasm-exnref log.js

.gitignore

@@ -238,8 +238,6 @@ micronaut-webapp/docker-compose.yml
 /hello-graal/Hello
 /hello-graal/Hello.build_artifacts.txt
 /native-heapdump-examples/helloworld
-native-list-dir/listdir
-native-list-dir/listdir.build_artifacts.txt
 shared
 micronaut-hello-rest-gradle/hello/
 micronaut-webapp/loadTests/results-*
@@ -262,7 +260,6 @@ fastR-examples/*.*
 venv/
 espresso-jshell/espresso-jshell
 espresso-jshell/espresso-jshell.build_artifacts.txt
-native-list-dir/extlistdir
-native-list-dir/extlistdir.build_artifacts.txt
 *.pyc
 *.iprof
+web-image/export-java-function/*.js

…eb-image/export-java-function/Adder.java web-image/export-java-function/Adder.javanative-image/web-image/export-java-function/Adder.java renamed to web-image/export-java-function/Adder.java native-image/web-image/export-java-function/Adder.java renamed to web-image/export-java-function/Adder.java

@@ -1,10 +1,10 @@
 # Web Image: Export Java Method Example
 
-This demo illustrates the use of **Web Image** - an experimental backend for [GraalVM Native Image](https://www.graalvm.org/latest/reference-manual/native-image/) that compiles a Java application ahead-of-time and produces a WebAssembly (WASM) module with a JavaScript wrapper.
+This demo illustrates the use of **Web Image** - an experimental backend for [GraalVM Native Image](https://www.graalvm.org/latest/reference-manual/native-image/) that compiles a Java application ahead-of-time and produces a WebAssembly (Wasm) module with a JavaScript wrapper.
 Then it can be run in browsers or with Node.js.
 
 The key idea is to show how you can currently **call Java methods directly from JavaScript** without relying on the `main()` method.
-This demo exposes a simple Java `add(int a, int b)` method to the global JavaScript scope using the `@JS` annotation from the [Annotation Interface](https://www.graalvm.org/sdk/javadoc/org/graalvm/webimage/api/JS.html).
+This demo exposes a simple Java method to the global JavaScript scope using the `@JS` annotation from the [Annotation Interface](https://www.graalvm.org/sdk/javadoc/org/graalvm/webimage/api/JS.html).
 
 > Note: Web Image is an experimental technology and under active development. APIs, tooling, and capabilities may change.
 
@@ -70,7 +70,7 @@ public class Adder {
 ```
 
 - `@JS` annotation is part of [GraalVM Web Image API](https://www.graalvm.org/sdk/javadoc/org/graalvm/webimage/api/JS.html). It allows you to bridge Java and JavaScript.
-- `args = {"adder"}` tells GraalVM that the BiFunction you pass in Java will be available as a JavaScript variable `adder`.
+- `args = {"adder"}` tells GraalVM that the BiFunction you pass in Java will be available as a JavaScript variable `adder` (not necessary if the Java source code is compiled with the `-parameters` option).
 - `value = "globalThis.adder = adder;"` is a raw JavaScript code executed when the export happens; it sets a variable called `adder` to be globally accessible in browsers.
 
 Further down you see the `export` method:
@@ -87,7 +87,7 @@ This makes the lambda directly callable from JS as `globalThis.adder(...)`.
 The next part is calling from JavaScript in HTML, which happens in this part of _index.html_:
 ```js
 <script>
-GraalVM.run([], {}).then(() => {
+GraalVM.run([]).then(() => {
     ...
     addButton.addEventListener("click", () => {
         const a = parseInt(document.getElementById("num1").value);
@@ -103,10 +103,10 @@ GraalVM.run([], {}).then(() => {
 </script>
 ```
 
-- `GraalVM.run([], {})` initializes the WASM module and the Java runtime inside the browser.
+- `GraalVM.run([], {})` initializes the Wasm module and the Java runtime inside the browser.
 - `globalThis.adder(a, b)` calls the `add` function you exported via WebAssembly.
 
 ### Conclusion
 
 The focus of this demo is to demonstrate direct interaction between Java and JavaScript in the browser via WebAssembly.
-Note that the [GraalVM Web Image API](https://www.graalvm.org/sdk/javadoc/org/graalvm/webimage/api/JS.html) is still under active development.
+Note that the [GraalVM Web Image API](https://www.graalvm.org/sdk/javadoc/org/graalvm/webimage/api/JS.html) is still under active development, there will be better ways to export Java methods to JavaScript.

…web-image/export-java-function/README.md web-image/export-java-function/README.mdnative-image/web-image/export-java-function/README.md renamed to web-image/export-java-function/README.md native-image/web-image/export-java-function/README.md renamed to web-image/export-java-function/README.md

@@ -16,7 +16,7 @@ <h2>GraalVM Web Image</h2>
 
     <script src="adder.js"></script>
     <script>
-    GraalVM.run([], {}).then(() => {
+    GraalVM.run([]).then(() => {
         const addButton = document.getElementById("addButton");
         const clearButton = document.getElementById("clearButton");
         const output = document.getElementById("output");

…eb-image/export-java-function/index.html web-image/export-java-function/index.htmlnative-image/web-image/export-java-function/index.html renamed to web-image/export-java-function/index.html native-image/web-image/export-java-function/index.html renamed to web-image/export-java-function/index.html

@@ -0,0 +1,10 @@
+require("./adder.js");
+
+GraalVM.run([]).then(() => {
+  const a = 3;
+  const b = 4;
+
+  const result = globalThis.adder(a, b);
+  console.log(`Result: ${result}`);
+
+});