stream: treat compression web stream format per its WebIDL definition

PR-URL: #50631
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>

Author: panva

lib/internal/crypto/webidl.js

@@ -19,44 +19,29 @@ const {
   MathTrunc,
   Number,
   NumberIsFinite,
-  ObjectAssign,
   ObjectPrototypeIsPrototypeOf,
   SafeArrayIterator,
-  SafeSet,
   String,
   SymbolIterator,
   TypedArrayPrototypeGetBuffer,
   TypedArrayPrototypeGetSymbolToStringTag,
-  TypeError,
   globalThis: {
     SharedArrayBuffer,
   },
 } = primordials;
 
+const {
+  makeException,
+  createEnumConverter,
+} = require('internal/webidl');
+
 const {
   kEmptyObject,
   setOwnProperty,
 } = require('internal/util');
 const { CryptoKey } = require('internal/crypto/webcrypto');
 const { getDataViewOrTypedArrayBuffer } = require('internal/crypto/util');
 
-function codedTypeError(message, errorProperties = kEmptyObject) {
-  // eslint-disable-next-line no-restricted-syntax
-  const err = new TypeError(message);
-  ObjectAssign(err, errorProperties);
-  return err;
-}
-
-function makeException(message, opts = kEmptyObject) {
-  const prefix = opts.prefix ? opts.prefix + ': ' : '';
-  const context = opts.context?.length === 0 ?
-    '' : (opts.context ?? 'Value') + ' ';
-  return codedTypeError(
-    `${prefix}${context}${message}`,
-    { code: opts.code || 'ERR_INVALID_ARG_TYPE' },
-  );
-}
-
 // https://tc39.es/ecma262/#sec-tonumber
 function toNumber(value, opts = kEmptyObject) {
   switch (typeof value) {
@@ -308,22 +293,6 @@ function createDictionaryConverter(name, dictionaries) {
   };
 }
 
-function createEnumConverter(name, values) {
-  const E = new SafeSet(values);
-
-  return function(V, opts = kEmptyObject) {
-    const S = String(V);
-
-    if (!E.has(S)) {
-      throw makeException(
-        `value '${S}' is not a valid enum value of type ${name}.`,
-        { __proto__: null, ...opts, code: 'ERR_INVALID_ARG_VALUE' });
-    }
-
-    return S;
-  };
-}
-
 function createSequenceConverter(converter) {
   return function(V, opts = kEmptyObject) {
     if (type(V) !== 'Object') {

lib/internal/webidl.js

@@ -10,7 +10,10 @@ const {
   NumberIsNaN,
   NumberMAX_SAFE_INTEGER,
   NumberMIN_SAFE_INTEGER,
+  ObjectAssign,
+  SafeSet,
   String,
+  TypeError,
 } = primordials;
 
 const {
@@ -173,8 +176,43 @@ converters.DOMString = function DOMString(V) {
   return String(V);
 };
 
+function codedTypeError(message, errorProperties = kEmptyObject) {
+  // eslint-disable-next-line no-restricted-syntax
+  const err = new TypeError(message);
+  ObjectAssign(err, errorProperties);
+  return err;
+}
+
+function makeException(message, opts = kEmptyObject) {
+  const prefix = opts.prefix ? opts.prefix + ': ' : '';
+  const context = opts.context?.length === 0 ?
+    '' : (opts.context ?? 'Value') + ' ';
+  return codedTypeError(
+    `${prefix}${context}${message}`,
+    { code: opts.code || 'ERR_INVALID_ARG_TYPE' },
+  );
+}
+
+function createEnumConverter(name, values) {
+  const E = new SafeSet(values);
+
+  return function(V, opts = kEmptyObject) {
+    const S = String(V);
+
+    if (!E.has(S)) {
+      throw makeException(
+        `value '${S}' is not a valid enum value of type ${name}.`,
+        { __proto__: null, ...opts, code: 'ERR_INVALID_ARG_VALUE' });
+    }
+
+    return S;
+  };
+}
+
 module.exports = {
+  converters,
   convertToInt,
+  createEnumConverter,
   evenRound,
-  converters,
+  makeException,
 };

lib/internal/webstreams/compression.js

@@ -4,10 +4,6 @@ const {
   ObjectDefineProperties,
 } = primordials;
 
-const {
-  codes: { ERR_INVALID_ARG_VALUE },
-} = require('internal/errors');
-
 const {
   newReadableWritablePairFromDuplex,
 } = require('internal/webstreams/adapters');
@@ -19,12 +15,20 @@ const {
   kEnumerableProperty,
 } = require('internal/util');
 
+const { createEnumConverter } = require('internal/webidl');
+
 let zlib;
 function lazyZlib() {
   zlib ??= require('zlib');
   return zlib;
 }
 
+const formatConverter = createEnumConverter('CompressionFormat', [
+  'deflate',
+  'deflate-raw',
+  'gzip',
+]);
+
 /**
  * @typedef {import('./readablestream').ReadableStream} ReadableStream
  * @typedef {import('./writablestream').WritableStream} WritableStream
@@ -38,6 +42,10 @@ class CompressionStream {
    * @param {'deflate'|'deflate-raw'|'gzip'} format
    */
   constructor(format) {
+    format = formatConverter(format, {
+      prefix: "Failed to construct 'CompressionStream'",
+      context: '1st argument',
+    });
     switch (format) {
       case 'deflate':
         this.#handle = lazyZlib().createDeflate();
@@ -48,8 +56,6 @@ class CompressionStream {
       case 'gzip':
         this.#handle = lazyZlib().createGzip();
         break;
-      default:
-        throw new ERR_INVALID_ARG_VALUE('format', format);
     }
     this.#transform = newReadableWritablePairFromDuplex(this.#handle);
   }
@@ -86,6 +92,10 @@ class DecompressionStream {
    * @param {'deflate'|'deflate-raw'|'gzip'} format
    */
   constructor(format) {
+    format = formatConverter(format, {
+      prefix: "Failed to construct 'DecompressionStream'",
+      context: '1st argument',
+    });
     switch (format) {
       case 'deflate':
         this.#handle = lazyZlib().createInflate();
@@ -96,8 +106,6 @@ class DecompressionStream {
       case 'gzip':
         this.#handle = lazyZlib().createGunzip();
         break;
-      default:
-        throw new ERR_INVALID_ARG_VALUE('format', format);
     }
     this.#transform = newReadableWritablePairFromDuplex(this.#handle);
   }

test/wpt/status/compression.json

@@ -2,26 +2,12 @@
   "compression-bad-chunks.tentative.any.js": {
     "skip": "Execution \"hangs\", ArrayBuffer and TypedArray is not accepted and throws, instead of rejects during writer.write"
   },
-  "compression-constructor-error.tentative.any.js": {
-    "fail": {
-      "expected": [
-        "non-string input should cause the constructor to throw"
-      ]
-    }
-  },
   "decompression-bad-chunks.tentative.any.js": {
     "skip": "Execution \"hangs\", ArrayBuffer and TypedArray is not accepted and throws, instead of rejects during writer.write"
   },
   "decompression-buffersource.tentative.any.js": {
     "skip": "ArrayBuffer and TypedArray is not accepted and throws, instead of rejects during writer.write"
   },
-  "decompression-constructor-error.tentative.any.js": {
-    "fail": {
-      "expected": [
-        "non-string input should cause the constructor to throw"
-      ]
-    }
-  },
   "compression-with-detach.tentative.window.js": {
     "requires": ["crypto"]
   },