update deno intergration

integrations/deno/README.md

@@ -0,0 +1,51 @@
+<p align="center">
+    <img alt="Melody Logo" height="250px" src="https://user-images.githubusercontent.com/14347895/159069181-53bce5b3-a831-43f1-8c14-af6c6ed7b92b.svg">
+</p>
+
+<p align="center">
+Deno bindings for the Melody language compiler
+</p>
+
+## Usage
+
+```ts
+import init, { compiler } from "https://deno.land/x/melody/melody_wasm.js";
+
+await init();
+
+const source = `
+  <start>;
+
+  option of "v";
+
+  capture major {
+    some of <digit>;
+  }
+
+  ".";
+
+  capture minor {
+    some of <digit>;
+  }
+
+  ".";
+
+  capture patch {
+    some of <digit>;
+  }
+
+  <end>;
+`;
+
+try {
+  const output = compiler(source);
+  new RegExp(output).test("v1.1.1"); // true
+} catch (error) {
+  // handle compilation error
+}
+```
+
+## Links
+
+- [Language Documentation](https://yoav-lavi.github.io/melody/book/)
+- [Repository](https://github.com/yoav-lavi/melody)

integrations/deno/melody_wasm.js

@@ -0,0 +1,257 @@
+let wasm;
+
+let cachedTextDecoder = new TextDecoder("utf-8", {
+  ignoreBOM: true,
+  fatal: true,
+});
+
+cachedTextDecoder.decode();
+
+let cachegetUint8Memory0 = null;
+function getUint8Memory0() {
+  if (
+    cachegetUint8Memory0 === null ||
+    cachegetUint8Memory0.buffer !== wasm.memory.buffer
+  ) {
+    cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer);
+  }
+  return cachegetUint8Memory0;
+}
+
+function getStringFromWasm0(ptr, len) {
+  return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
+}
+
+const heap = new Array(32).fill(undefined);
+
+heap.push(undefined, null, true, false);
+
+let heap_next = heap.length;
+
+function addHeapObject(obj) {
+  if (heap_next === heap.length) heap.push(heap.length + 1);
+  const idx = heap_next;
+  heap_next = heap[idx];
+
+  heap[idx] = obj;
+  return idx;
+}
+
+let WASM_VECTOR_LEN = 0;
+
+let cachedTextEncoder = new TextEncoder("utf-8");
+
+const encodeString =
+  typeof cachedTextEncoder.encodeInto === "function"
+    ? function (arg, view) {
+        return cachedTextEncoder.encodeInto(arg, view);
+      }
+    : function (arg, view) {
+        const buf = cachedTextEncoder.encode(arg);
+        view.set(buf);
+        return {
+          read: arg.length,
+          written: buf.length,
+        };
+      };
+
+function passStringToWasm0(arg, malloc, realloc) {
+  if (realloc === undefined) {
+    const buf = cachedTextEncoder.encode(arg);
+    const ptr = malloc(buf.length);
+    getUint8Memory0()
+      .subarray(ptr, ptr + buf.length)
+      .set(buf);
+    WASM_VECTOR_LEN = buf.length;
+    return ptr;
+  }
+
+  let len = arg.length;
+  let ptr = malloc(len);
+
+  const mem = getUint8Memory0();
+
+  let offset = 0;
+
+  for (; offset < len; offset++) {
+    const code = arg.charCodeAt(offset);
+    if (code > 0x7f) break;
+    mem[ptr + offset] = code;
+  }
+
+  if (offset !== len) {
+    if (offset !== 0) {
+      arg = arg.slice(offset);
+    }
+    ptr = realloc(ptr, len, (len = offset + arg.length * 3));
+    const view = getUint8Memory0().subarray(ptr + offset, ptr + len);
+    const ret = encodeString(arg, view);
+
+    offset += ret.written;
+  }
+
+  WASM_VECTOR_LEN = offset;
+  return ptr;
+}
+
+let cachegetInt32Memory0 = null;
+function getInt32Memory0() {
+  if (
+    cachegetInt32Memory0 === null ||
+    cachegetInt32Memory0.buffer !== wasm.memory.buffer
+  ) {
+    cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer);
+  }
+  return cachegetInt32Memory0;
+}
+
+function getObject(idx) {
+  return heap[idx];
+}
+
+function dropObject(idx) {
+  if (idx < 36) return;
+  heap[idx] = heap_next;
+  heap_next = idx;
+}
+
+function takeObject(idx) {
+  const ret = getObject(idx);
+  dropObject(idx);
+  return ret;
+}
+/**
+ *
+ *Compiles Melody source code to a regular expression
+ *
+ *# Errors
+ *
+ *Throws an error if a compilation error is encountered
+ *
+ *# Example
+ *
+ *```js
+ *import init, { compiler } from "https://deno.land/x/melody/melody_wasm.js";
+ *
+ *await init();
+ *
+ *const source = `
+ *  <start>;
+ *
+ *  option of "v";
+ *
+ *  capture major {
+ *    some of <digit>;
+ *  }
+ *
+ *  ".";
+ *
+ *  capture minor {
+ *    some of <digit>;
+ *  }
+ *
+ *  ".";
+ *
+ *  capture patch {
+ *    some of <digit>;
+ *  }
+ *
+ *  <end>;
+ *`;
+ *
+ *try {
+ *  const output = compiler(source);
+ *  new RegExp(output).test("v1.1.1"); // true
+ *} catch (error) {
+ *  // handle compilation error
+ *}
+ *```
+ * @param {string} source
+ * @returns {string}
+ */
+export function compiler(source) {
+  try {
+    const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
+    var ptr0 = passStringToWasm0(
+      source,
+      wasm.__wbindgen_malloc,
+      wasm.__wbindgen_realloc
+    );
+    var len0 = WASM_VECTOR_LEN;
+    wasm.compiler(retptr, ptr0, len0);
+    var r0 = getInt32Memory0()[retptr / 4 + 0];
+    var r1 = getInt32Memory0()[retptr / 4 + 1];
+    var r2 = getInt32Memory0()[retptr / 4 + 2];
+    var r3 = getInt32Memory0()[retptr / 4 + 3];
+    var ptr1 = r0;
+    var len1 = r1;
+    if (r3) {
+      ptr1 = 0;
+      len1 = 0;
+      throw takeObject(r2);
+    }
+    return getStringFromWasm0(ptr1, len1);
+  } finally {
+    wasm.__wbindgen_add_to_stack_pointer(16);
+    wasm.__wbindgen_free(ptr1, len1);
+  }
+}
+
+async function load(module, imports) {
+  if (typeof Response === "function" && module instanceof Response) {
+    if (typeof WebAssembly.instantiateStreaming === "function") {
+      try {
+        return await WebAssembly.instantiateStreaming(module, imports);
+      } catch (e) {
+        if (module.headers.get("Content-Type") != "application/wasm") {
+          console.warn(
+            "`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n",
+            e
+          );
+        } else {
+          throw e;
+        }
+      }
+    }
+
+    const bytes = await module.arrayBuffer();
+    return await WebAssembly.instantiate(bytes, imports);
+  } else {
+    const instance = await WebAssembly.instantiate(module, imports);
+
+    if (instance instanceof WebAssembly.Instance) {
+      return { instance, module };
+    } else {
+      return instance;
+    }
+  }
+}
+
+async function init(input) {
+  if (typeof input === "undefined") {
+    input = new URL("melody_wasm_bg.wasm", import.meta.url);
+  }
+  const imports = {};
+  imports.wbg = {};
+  imports.wbg.__wbindgen_error_new = function (arg0, arg1) {
+    var ret = new Error(getStringFromWasm0(arg0, arg1));
+    return addHeapObject(ret);
+  };
+
+  if (
+    typeof input === "string" ||
+    (typeof Request === "function" && input instanceof Request) ||
+    (typeof URL === "function" && input instanceof URL)
+  ) {
+    input = fetch(input);
+  }
+
+  const { instance, module } = await load(await input, imports);
+
+  wasm = instance.exports;
+  init.__wbindgen_wasm_module = module;
+
+  return wasm;
+}
+
+export default init;