@wasmer/wasi - npm Package Compare versions

Comparing version 1.0.2 to 1.1.0

package.json

 {
   "name": "@wasmer/wasi",
-  "version": "1.0.2",
+  "version": "1.1.0",
   "main": "dist/Library.cjs.min.js",
@@ -5,0 +5,0 @@ "module": "dist/Library.esm.min.js",

tests/index.spec.js

@@ -6,7 +6,7 @@ const fs = require('fs');
 
-async function initWasi(moduleBytes, config) {
+async function initWasi(moduleBytes, config, imports = {}) {
   let wasi = new WASI(config);
   const module = await WebAssembly.compile(moduleBytes);
-  await wasi.instantiate(module, {});
-  return wasi;
+  const instance = await wasi.instantiate(module, imports);
+  return [wasi, instance];
 }
@@ -19,3 +19,3 @@
 test('envvar works', async () => {
-  let wasi = await initWasi(fs.readFileSync(__dirname + '/envvar.wasm'), {
+  let [wasi, instance] = await initWasi(fs.readFileSync(__dirname + '/envvar.wasm'), {
     env: {
@@ -27,3 +27,3 @@ DOG: "X",
   });
-  let code = wasi.start();
+  let code = wasi.start(instance);
   expect(wasi.getStdoutString()).toBe(`Env vars:
@@ -41,4 +41,4 @@ DOG=X
   let contents = fs.readFileSync(__dirname + '/demo.wasm');
-  let wasi = await initWasi(contents, {});
-  let code = wasi.start();
+  let [wasi, instance] = await initWasi(contents, {});
+  let code = wasi.start(instance);
   expect(wasi.getStdoutString()).toBe("hello world\n");
@@ -49,5 +49,5 @@ });
   let contents = fs.readFileSync(__dirname + '/pipe_reverse.wasm');
-  let wasi = await initWasi(contents, {});
+  let [wasi, instance] = await initWasi(contents, {});
   wasi.setStdinString("Hello World!");
-  let code = wasi.start();
+  let code = wasi.start(instance);
   expect(wasi.getStdoutString()).toBe("!dlroW olleH\n");
@@ -58,3 +58,3 @@ });
   let contents = fs.readFileSync(__dirname + '/mapdir.wasm');
-  let wasi = await initWasi(contents, {});
+  let [wasi, instance] = await initWasi(contents, {});
   wasi.fs.createDir("/a");
@@ -67,4 +67,102 @@ wasi.fs.createDir("/b");
   // console.log(wasi.fs.readDir("/"));
-  let code = wasi.start();
+  let code = wasi.start(instance);
   expect(wasi.getStdoutString()).toBe(`"./a"\n"./b"\n"./file"\n`);
 });
+
+test('testing wasm', async() => {
+
+  let contents = fs.readFileSync(__dirname + '/test.wasm');
+  let [wasi, instance] = await initWasi(contents, {}, {
+    'module': {
+        'external': function() { console.log("external: hello world!") }
+    }});
+
+  // Run the start function
+  let exitCode = wasi.start(instance);
+  let stdout = wasi.getStdoutString();
+
+  // This should print "hello world (exit code: 0)"
+  console.log(`${stdout}(exit code: ${exitCode})`);
+})
+
+test('wasi start empty fails', async() => {
+  let moduleBytes = fs.readFileSync(__dirname + '/test.wasm');
+  let wasi = new WASI({});
+  const module = await WebAssembly.compile(moduleBytes);
+  let imports = wasi.get_imports(module);
+  // console.log(imports);
+  let instance = await WebAssembly.instantiate(module, {
+    ...imports,
+    'module': {
+      'external': function() { console.log("external: hello world!") }
+    }
+  });
+  expect(() => wasi.start()).toThrow("`wasi.start` now receives the instance as the first argument (received none)");
+});
+
+test('get imports', async() => {
+  let moduleBytes = fs.readFileSync(__dirname + '/test.wasm');
+  let wasi = new WASI({});
+  const module = await WebAssembly.compile(moduleBytes);
+  let imports = wasi.get_imports(module);
+  // console.log(imports);
+  let instance = await WebAssembly.instantiate(module, {
+    ...imports,
+    'module': {
+      'external': function() { console.log("external: hello world!") }
+    }
+  });
+  let exitCode = wasi.start(instance);
+  let stdout = wasi.getStdoutString();
+
+  // This should print "hello world (exit code: 0)"
+  console.log(`${stdout}(exit code: ${exitCode})`);
+
+  // expect(Object.keys(imports["wasi_snapshot_preview1"])).toStrictEqual([
+  //   "fd_datasync",
+  //   "fd_write",
+  //   "poll_oneoff",
+  //   "fd_advise",
+  //   "sock_shutdown",
+  //   "fd_prestat_dir_name",
+  //   "path_readlink",
+  //   "args_sizes_get",
+  //   "fd_sync",
+  //   "path_symlink",
+  //   "path_rename",
+  //   "clock_res_get",
+  //   "path_unlink_file",
+  //   "path_link",
+  //   "path_remove_directory",
+  //   "fd_allocate",
+  //   "path_create_directory",
+  //   "environ_sizes_get",
+  //   "proc_exit",
+  //   "random_get",
+  //   "fd_fdstat_set_flags",
+  //   "fd_close",
+  //   "environ_get",
+  //   "fd_readdir",
+  //   "fd_read",
+  //   "fd_seek",
+  //   "fd_filestat_get",
+  //   "path_open",
+  //   "proc_raise",
+  //   "fd_tell",
+  //   "fd_fdstat_get",
+  //   "sched_yield",
+  //   "fd_pread",
+  //   "fd_renumber",
+  //   "fd_pwrite",
+  //   "path_filestat_set_times",
+  //   "sock_recv",
+  //   "fd_fdstat_set_rights",
+  //   "fd_prestat_get",
+  //   "path_filestat_get",
+  //   "fd_filestat_set_times",
+  //   "fd_filestat_set_size",
+  //   "sock_send",
+  //   "args_get",
+  //   "clock_time_get"
+  // ]);
+})

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Found 1 instance in 1 package

Uses eval

Supply chain risk

Package uses dynamic code execution (e.g., eval()), which is a dangerous practice. This can prevent the code from running in certain environments and increases the risk that the code may contain exploits or malicious behavior.

Found 1 instance in 1 package

Long strings

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Contains long string literals, which may be a sign of obfuscated or packed code.

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Fixed alerts

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License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Long strings

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Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

16154804

increased by14.47%

Number of package files

73

increased by2.82%

Lines of code

45960

increased by1.69%

No dependency changes