Add initial C# WebAssembly support

.gitignore

@@ -8,3 +8,4 @@ out/
 splashkit/
 generated/
 __pycache__/
+_framework/

Browser_IDE/CSharpWasm/main.js

@@ -0,0 +1,58 @@
+import { dotnet } from "./wwwroot/_framework/dotnet.js";
+
+const loadDotNet = async () => {
+    const { setModuleImports, getAssemblyExports, getConfig } = await dotnet
+        .withDiagnosticTracing(false)
+        .withApplicationArgumentsFromQuery()
+        .create();
+
+    setModuleImports("main.js", {
+        window: {
+            location: {
+                href: () => globalThis.window.location.href,
+            },
+        },
+        SplashKitBackendWASM: {
+            // TODO: Pass the rest of the SplashKit functions
+            write_line,
+            refresh_screen,
+            open_window,
+            fill_ellipse: () => {
+                // Research how to pass a JS object in WASM
+                fill_ellipse(color_black(), 260, 260, 200, 200);
+            },
+        },
+    });
+
+    const config = getConfig();
+    const exports = await getAssemblyExports(config.mainAssemblyName);
+    return exports;
+};
+
+const CompileAndRun = async (code, reportError) => {
+    try {
+        const exports = await loadDotNet();
+        const result = await exports.CSharpCodeRunner.CompileAndRun(code);
+        if (result.includes("Compilation failed")) {
+            const errors = result.split(":");
+            const errorLine = errors[1].split("Line");
+
+            const indexCorrector = 1;
+            const filePath = "__USERCODE__/code/main.cs";
+            reportError(
+                filePath,
+                result,
+                Number(errorLine[1]) + indexCorrector,
+                null,
+                true,
+            );
+        }
+    } catch (error) {
+        console.error("Error during code execution:", error);
+    }
+};
+
+// This event will be trigger by the csharp compiler
+document.addEventListener("compileAndRun", (ev) => {
+    CompileAndRun(ev.detail.program[0].source, ev.detail.reportError);
+});

Browser_IDE/compilers/csharp/csharpCompiler.js

@@ -0,0 +1,33 @@
+"use strict";
+
+class CSharpCompiler extends Compiler {
+    constructor() {
+        super();
+        this.signalReady();
+    }
+
+    async compileAll(compileList, sourceList, print) {
+        let compiled = {
+            output: null,
+        };
+
+        let hasErrors = false;
+
+        // If all good, then output the 'compiled' result
+        if (!hasErrors) {
+            compiled.output = [];
+            for (let i = 0; i < sourceList.length; i++) {
+                compiled.output.push({
+                    name: sourceList[i].name,
+                    source: sourceList[i].source,
+                });
+            }
+        }
+
+        return compiled;
+    }
+
+}
+
+// The name has to match the one in languageDefinitions.js
+registerCompiler("csharpCompiler", new CSharpCompiler());

Browser_IDE/executionEnvironment.html

@@ -41,5 +41,4 @@
 <script src="downloadHandler.js"></script>
 <script src="executionEnvironment_Page.js"></script>
 <script src="runtimes/ExecutionEnvironmentInternalLoader.js"></script>
-
 </html>

Browser_IDE/executionEnvironment.js

@@ -285,7 +285,7 @@ class ExecutionEnvironment extends EventTarget{
 
         iframe.id="iframetest"; // this code is primordial...
         if (language.needsSandbox)
-            iframe.sandbox = 'allow-scripts allow-modals';
+            iframe.sandbox = 'allow-scripts allow-modals allow-same-origin';
 
         container.appendChild(iframe);
         iframe.src="executionEnvironment.html";

Browser_IDE/languageDefinitions.js

@@ -11,6 +11,41 @@
 // should inherit from Compiler, and need to register themselves to be used
 
 let SplashKitOnlineLanguageDefinitions = [
+    {
+        name: "CSharp",
+        userVisibleName: "C#",
+        aliases: ['C#', 'CSharp'],
+        sourceExtensions: ['cs'],
+        compilableExtensions: ['cs'],
+        defaultSourceExtension: "cs",
+        setups: [{
+            name: "C#",
+            runtimeFiles: [
+                { src: "moduleEventTarget.js", type: "text/javascript" },
+                { src: "loadsplashkit.js", type: "text/javascript" },
+                { src: "fsevents.js", type: "text/javascript" },
+                { src: "CSharpWasm/main.js", type: "module" },
+                { src: "runtimes/ExecutionEnvironmentInternal.js", type: "text/javascript" },
+                { src: "runtimes/csharp/csharpRuntime.js", type: "text/javascript" },
+            ],
+            runtimeDependencies: [
+                "runtimes/javascript/bin/SplashKitBackendWASM.js",
+                "runtimes/javascript/bin/SplashKitBackendWASM.wasm",
+            ],
+            compilerFiles: [
+                "compilers/csharp/csharpCompiler.js",
+            ],
+            runtimeSizeAprox: 20,
+            compilerSizeAprox: 150,
+            compilerName: "csharpCompiler",
+            supportHotReloading: false,
+            getDefaultProject: ()=>{return makeNewProject_CSharp;},
+            persistentFilesystem: false,
+            compiled: true,
+            needsSandbox: false,
+            needsServiceWorker: false,
+        }]
+    },
     {
         name: "JavaScript",
         userVisibleName: "JavaScript",
@@ -21,12 +56,12 @@ let SplashKitOnlineLanguageDefinitions = [
         setups: [{
             name: "JavaScript Native",
             runtimeFiles: [
-                "babel/babel.js", //intention is to make this a compilerFile instead
-                "moduleEventTarget.js",
-                "loadsplashkit.js",
-                "fsevents.js",
-                "executionEnvironment_CodeProcessor.js", //intention is to make this a compilerFile instead
-                "executionEnvironment_Internal.js", // and this should be based on ExecutionEnvironmentInternal.js
+                { src: "babel/babel.js", type: "text/javascript" }, //intention is to make this a compilerFile instead
+                { src: "moduleEventTarget.js", type: "text/javascript" },
+                { src: "loadsplashkit.js", type: "text/javascript" },
+                { src: "fsevents.js", type: "text/javascript" },
+                { src: "executionEnvironment_CodeProcessor.js", type: "text/javascript" }, //intention is to make this a compilerFile instead
+                { src: "executionEnvironment_Internal.js", type: "text/javascript" }, // and this should be based on ExecutionEnvironmentInternal.js
             ],
             runtimeDependencies: [
                 "runtimes/javascript/bin/SplashKitBackendWASM.js",
@@ -56,9 +91,9 @@ let SplashKitOnlineLanguageDefinitions = [
         setups: [{
             name: "C++ (Clang)",
             runtimeFiles: [
-                "runtimes/ExecutionEnvironmentInternal.js",
-                "runtimes/cxx/cxxRuntime.js",
-                "runtimes/cxx/bin/SplashKitBackendWASMCPP.js",
+                { src: "runtimes/ExecutionEnvironmentInternal.js", type: "text/javascript" },
+                { src: "runtimes/cxx/cxxRuntime.js", type: "text/javascript" },
+                { src: "runtimes/cxx/bin/SplashKitBackendWASMCPP.js", type: "text/javascript" },
             ],
             runtimeDependencies: [
                 "runtimes/cxx/bin/SplashKitBackendWASMCPP.js",