moar stuff

codecs/oxipng/tmp/lol.js

@@ -0,0 +1,47 @@
+// const oxipng = require("./oxipng_wasm");
+const repl = require("repl");
+const fs = require("fs");
+
+const dec = new TextDecoder();
+let buffer = '';
+async function init() {
+  const { instance } = await WebAssembly.instantiate(
+    fs.readFileSync("./target/wasm32-unknown-unknown/release/loltest.wasm"),
+    {
+      __wbindgen_placeholder__: {
+        __wbindgen_describe(v) {
+          console.log(`__wbindgen_desribe(${v})`);
+        }
+      },
+      env: {
+        // See https://github.com/rust-lang/rust/blob/master/src/libstd/sys/wasm/mod.rs
+        rust_wasm_syscall(syscall, ptr) {
+          switch(syscall) {
+            case 1: // Write
+              const [fd, dataPtr, len] = new Uint32Array(instance.exports.memory.buffer, ptr, 3 * 4);
+              const fragment = new Uint8Array(instance.exports.memory.buffer, dataPtr, len);
+              buffer += dec.decode(fragment);
+              const idx = buffer.indexOf('\n');
+              if(idx !== -1) {
+                console.log(buffer.slice(0, idx));
+                buffer = buffer.slice(idx);
+              }
+              return 1;
+            case 6: // Time
+              return 1;
+            default:
+              return 0; // False, unimplemented
+          }
+        }
+      }
+    }
+  );
+
+  try {
+    instance.exports.doit();
+  } catch{}
+  const r = repl.start("node> ");
+  r.context.i = instance;
+}
+
+init();