wasmbuild 0.0.3

// @generated file from wasmbuild -- do not edit
// deno-lint-ignore-file
// deno-fmt-ignore-file
// source-hash: abfb31399130a738d2ce5094f57af22d7ad46946
let wasm;
let cachedInt32Memory0;

/**
 * add two i32 numbers
 * @param {number} a
 * @param {number} b
 * @returns {number}
 */
export function add(a, b) {
  const ret = wasm.add(a, b);
  return ret;
}

let WASM_VECTOR_LEN = 0;

let cachedUint8Memory0;
function getUint8Memory0() {
  if (cachedUint8Memory0.byteLength === 0) {
    cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);
  }
  return cachedUint8Memory0;
}

const cachedTextEncoder = new TextEncoder("utf-8");

const encodeString = function (arg, view) {
  return cachedTextEncoder.encodeInto(arg, view);
};

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;
}
/**
 * get string length
 * @param {string} s
 * @returns {number}
 */
export function strlen(s) {
  const ptr0 = passStringToWasm0(
    s,
    wasm.__wbindgen_malloc,
    wasm.__wbindgen_realloc,
  );
  const len0 = WASM_VECTOR_LEN;
  const ret = wasm.strlen(ptr0, len0);
  return ret >>> 0;
}

/**
 * log message to stderr
 * @param {string} s
 */
export function logstderr(s) {
  const ptr0 = passStringToWasm0(
    s,
    wasm.__wbindgen_malloc,
    wasm.__wbindgen_realloc,
  );
  const len0 = WASM_VECTOR_LEN;
  wasm.logstderr(ptr0, len0);
}

const imports = {
  __wbindgen_placeholder__: {},
};

const wasm_url = new URL("wasmbuild_bg.wasm", import.meta.url);

/**
 * Decompression callback
 *
 * @callback decompressCallback
 * @param {Uint8Array} compressed
 * @return {Uint8Array} decompressed
 */

/** Instantiates an instance of the Wasm module returning its functions.
 * @remarks It is safe to call this multiple times and once successfully
 * loaded it will always return a reference to the same object.
 * @param {decompressCallback=} transform
 */
export async function instantiate(transform) {
  return (await instantiateWithInstance(transform)).exports;
}

let instanceWithExports;
let lastLoadPromise;

/** Instantiates an instance of the Wasm module along with its exports.
 * @remarks It is safe to call this multiple times and once successfully
 * loaded it will always return a reference to the same object.
 * @param {decompressCallback=} transform
 * @returns {Promise<{
 *   instance: WebAssembly.Instance;
 *   exports: { add: typeof add; strlen: typeof strlen; logstderr: typeof logstderr }
 * }>}
 */
export function instantiateWithInstance(transform) {
  if (instanceWithExports != null) {
    return Promise.resolve(instanceWithExports);
  }
  if (lastLoadPromise == null) {
    lastLoadPromise = (async () => {
      try {
        const instance = (await instantiateModule(transform)).instance;
        wasm = instance.exports;
        cachedInt32Memory0 = new Int32Array(wasm.memory.buffer);
        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);
        instanceWithExports = {
          instance,
          exports: getWasmInstanceExports(),
        };
        return instanceWithExports;
      } finally {
        lastLoadPromise = null;
      }
    })();
  }
  return lastLoadPromise;
}

function getWasmInstanceExports() {
  return { add, strlen, logstderr };
}

/** Gets if the Wasm module has been instantiated. */
export function isInstantiated() {
  return instanceWithExports != null;
}

async function instantiateModule(transform) {
  switch (wasm_url.protocol) {
    case "file:": {
      if (typeof Deno !== "object") {
        throw new Error("file urls are not supported in this environment");
      }

      if ("permissions" in Deno) {
        Deno.permissions.request({ name: "read", path: wasm_url });
      }
      const wasmCode = await Deno.readFile(wasm_url);
      return WebAssembly.instantiate(
        !transform ? wasmCode : transform(wasmCode),
        imports,
      );
    }
    case "https:":
    case "http:": {
      if (typeof Deno === "object" && "permissions" in Deno) {
        Deno.permissions.request({ name: "net", host: wasm_url.host });
      }
      const wasmResponse = await fetch(wasm_url);
      if (transform) {
        const wasmCode = new Uint8Array(await wasmResponse.arrayBuffer());
        return WebAssembly.instantiate(transform(wasmCode), imports);
      }
      if (
        wasmResponse.headers.get("content-type")?.toLowerCase().startsWith(
          "application/wasm",
        )
      ) {
        return WebAssembly.instantiateStreaming(wasmResponse, imports);
      } else {
        return WebAssembly.instantiate(
          await wasmResponse.arrayBuffer(),
          imports,
        );
      }
    }
    default:
      throw new Error(`Unsupported protocol: ${wasm_url.protocol}`);
  }
}