@std/esm - npm Package Compare versions

Comparing version 0.7.1 to 0.8.0

index.js

 /* eslint strict: off, node/no-unsupported-features: ["error", { version: 4 }] */
 "use strict"
 
-const Module = module.constructor
+const fs = require("fs")
+const path = require("path")
+const util = require("util")
+const vm = require("vm")
+const zlib = require("zlib")
 
-const gunzipSync = require("zlib").gunzipSync
-const join = require("path").join
-const readFileSync = require("fs").readFileSync
+const esmPath = path.join(__dirname, "esm.js.gz")
+const inspectKey = util.inspect.custom || "inspect"
 
-const filePath = join(__dirname, "esm.js.gz")
-const content = gunzipSync(readFileSync(filePath)).toString()
-const mod = new Module(filePath, module.parent)
+const descriptor = Object.create(null)
+descriptor.value = () => "@std/esm enabled"
 
-mod.filename = filePath
-mod._compile(content, filePath)
-module.exports = mod.exports
+const mod = new module.constructor(module.id)
+mod.filename = __filename
+mod.parent = module.parent
+
+const scriptOptions = Object.create(null)
+scriptOptions.filename = esmPath
+
+const content =
+  "(function(require,module,__filename){" +
+  zlib.gunzipSync(fs.readFileSync(esmPath)).toString() +
+  "\n})"
+
+const compiled = vm.runInThisContext(content, scriptOptions)
+
+function makeLoaderFunction() {
+  compiled(require, mod, __filename)
+  return mod.exports
+}
+
+const loader = makeLoaderFunction()
+
+module.exports = (mod, options) => {
+  const type = typeof options
+
+  if (options === true ||
+      type === "function" ||
+      (type === "object" && options !== null)) {
+    return makeLoaderFunction()(mod, options)
+  }
+
+  return loader(mod, options)
+}
+
+Object.freeze(Object.defineProperty(module.exports, inspectKey, descriptor))

package.json

 {
   "name": "@std/esm",
-  "version": "0.7.1",
+  "version": "0.8.0",
   "description": "Enable ES modules in Node today!",
@@ -5,0 +5,0 @@ "keywords": "commonjs, ecmascript, export, import, modules, node, require",

README.md

@@ -22,2 +22,14 @@ # @std/esm
 
+     By default, `@std/esm` **only** processes files of packages that opt-in
+     with a `@std/esm` options object or `@std/esm` as a dependency, dev
+     dependency, or peer dependency in their package.json. However, you can
+     enable processing **all** files with specific options by passing an options
+     object as the second argument or passing `true` to use the options from
+     your package.json.
+
+     ```js
+     const loader1 = require("@std/esm")(module, { cjs: true, esm: "js" })
+     const loader2 = require("@std/esm")(module, true)
+     ```
+
 Enable ESM in the Node CLI by loading `@std/esm` with the [`-r` option](https://nodejs.org/api/cli.html#cli_r_require_module):
@@ -24,0 +36,0 @@

New alerts

License Policy Violation

License

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

Found 1 instance in 1 package

Debug access

Supply chain risk

Uses debug, reflection and dynamic code execution features.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

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

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

52008

increased by3.93%

Lines of code

36

increased by200%

Number of lines in readme file

132

increased by10%

Worsened metrics

Number of low supply chain risk alerts

3

increased by50%

No dependency changes