From 0f07ef8ebfcbb7f9077246eec08fd1435cdaee46 Mon Sep 17 00:00:00 2001
From: Your Name <agrawalshagun07@gmail.com>
Date: Sat, 26 Apr 2025 01:35:36 +0530
Subject: Compile library to WASM using GraalVM.

Add main functions for library.

Convert to WASM image.

Setup public for cljcc website.
---
 frontend/script.js | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 frontend/script.js

(limited to 'frontend/script.js')

diff --git a/frontend/script.js b/frontend/script.js
new file mode 100644
index 0000000..6e95792
--- /dev/null
+++ b/frontend/script.js
@@ -0,0 +1,52 @@
+// Assuming your WASM file is named "mymodule.wasm"
+async function loadWasmModule() {
+    // Fetch the WASM file
+    const wasmResponse = await fetch('../target/lib/cljcc-lib-wasm.js.wasm');
+    const wasmBuffer = await wasmResponse.arrayBuffer();
+
+    // Instantiate the WASM module
+    const wasmResult = await WebAssembly.instantiate(wasmBuffer, {
+        env: {
+            // Any imported functions needed by your WASM module
+            // For example, if your Java code uses console logging:
+            printString: function(ptr, len) {
+                // Implementation to handle string output
+                const bytes = new Uint8Array(memory.buffer, ptr, len);
+                const string = new TextDecoder('utf8').decode(bytes);
+                console.log(string);
+                document.getElementById('output').innerText += string + '\n';
+            }
+        }
+    });
+
+    // Store the instance and memory
+    const instance = wasmResult.instance;
+    const memory = instance.exports.memory;
+
+    // Call the exported function that returns a string
+    // For example, if your Java code exports a function called "getString"
+    const stringPointer = instance.exports.getString();
+
+    // Now we need to read the string from memory
+    // This depends on how your GraalVM WASM image handles strings
+    // Typically you would:
+    // 1. Get the length of the string (via another export or a convention)
+    const stringLength = instance.exports.getStringLength(); // If this is exported
+
+    // 2. Convert the pointer and length to a JavaScript string
+    const bytes = new Uint8Array(memory.buffer, stringPointer, stringLength);
+    const result = new TextDecoder('utf8').decode(bytes);
+
+    // 3. Display the result
+    document.getElementById('output').innerText = result;
+
+    return instance;
+}
+
+// Load the WASM module when the page loads
+window.onload = function() {
+    loadWasmModule().catch(err => {
+        console.error("Failed to load WASM module:", err);
+        document.getElementById('output').innerText = "Error: " + err.message;
+    });
+};
-- 
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