tc39 · codehag · May 27, 2021 · May 27, 2021
diff --git a/_data/de/stage3.yml b/_data/de/stage3.yml
@@ -32,59 +32,6 @@
     - Bradley Farias
   tests:
     - 'https://github.com/tc39/test262/pull/2065'
-- title: Top-level <code>await</code>
-  id: proposal-top-level-await
-  example: |-
-    // file.html
-    &#x3C;script type=module src=&#x22;a.mjs&#x22;&#x3E;&#x3C;/script&#x3E;
-    // a.mjs
-    await import(&#x22;./b.mjs&#x22;);
-    // b.mjs
-    await import(&#x22;./a.mjs&#x22;);
-  presented:
-    - date: Juni&#xA0;2019
-      url: >-
-        https://github.com/tc39/notes/blob/master/meetings/2019-06/june-6.md#top-level-await-for-stage-3
-  has_specification: true
-  description: Top-level <code>await</code> erlaubt es JS-Modulen sich wie große <code>async</code> Funktionen zu verhalten. Mit Top-level <code>await</code> können ECMAScript Module (ESM) die Ausführung von anderen Modulen, die diese importieren, verzögern, wenn diese selbst auf Ressourcen warten.
-  authors:
-    - Myles Borins
-  champions:
-    - Myles Borins
-  tests:
-    - 'https://github.com/tc39/test262/pull/2274'
-- title: RegExp Match Indizes
-  id: proposal-regexp-match-indices
-  example: |-
-    const re1 = /a+(?&#x3C;Z&#x3E;z)?/;
-    // indices are relative to start of the input string:
-    const s1 = &#x22;xaaaz&#x22;;
-    const m1 = re1.exec(s1);
-    m1.indices[0][0] === 1;
-    m1.indices[0][1] === 5;
-    s1.slice(...m1.indices[0]) === &#x22;aaaz&#x22;;
-    m1.indices[1][0] === 4;
-    m1.indices[1][1] === 5;
-    s1.slice(...m1.indices[1]) === &#x22;z&#x22;;
-    m1.indices.groups[&#x22;Z&#x22;][0] === 4;
-    m1.indices.groups[&#x22;Z&#x22;][1] === 5;
-    s1.slice(...m1.indices.groups[&#x22;Z&#x22;]) === &#x22;z&#x22;;
-    // capture groups that are not matched return &#x60;undefined&#x60;:
-    const m2 = re1.exec(&#x22;xaaay&#x22;);
-    m2.indices[1] === undefined;
-    m2.indices.groups[&#x22;Z&#x22;] === undefined;
-  presented:
-    - date: December&#xA0;2019
-      url: >-
-        https://github.com/tc39/notes/blob/master/meetings/2019-12/december-3.md#regexp-match-indices-performance-feedback
-  has_specification: false
-  description: ECMAScript RegExp Match Indizes liefern zusätzliche Informationen über die Start- und Endindizes der erfassten Teilzeichenketten relativ zum Anfang der Eingabezeichenkette.
-  authors:
-    - Ron Buckton
-  champions:
-    - Ron Buckton
-  tests:
-    - 'https://github.com/tc39/test262/pull/2309'
 - title: <code>Atomics.waitAsync</code>
   id: proposal-atomics-wait-async
   presented:
@@ -262,3 +209,48 @@
     - date: "March\_2021"
       url: >-
         https://github.com/tc39/notes/blob/master/meetings/2021-03/mar-9.md#temporal-for-stage-3
+- id: proposal-accessible-object-hasownproperty
+  title: Accessible Object.prototype.hasOwnProperty()
+  authors:
+    - James Kyle
+    - Tierney Cyren
+  champions:
+    - Tierney Cyren
+  description: Proposal for an Object.hasOwn() method to make Object.prototype.hasOwnProperty() more accessible.
+  example: >-
+    if (Object.hasOwn(object, "foo")) {
+      console.log("has property foo")
+    }
+  has_specification: true
+  presented:
+    - date: "May\_2021"
+- id: proposal-resizablearraybuffer
+  title: In-Place Resizable and Growable ArrayBuffers
+  authors:
+    - Shu-yu Guo
+  champions:
+    - Shu-yu Guo
+  description: ArrayBuffers have enabled in-memory handling of binary data and have enjoyed great success. This proposal extends the ArrayBuffer constructors to take an additional maximum length that allows in-place growth and shrinking of buffers. Similarly, SharedArrayBuffer is extended to take an additional maximum length that allows in-place growth. The transfer method is also re-introduced here as a standard way to detach ArrayBuffers, perform zero-copy moves, and to "fix" resizable ArrayBuffer instances to ArrayBuffer instances.
+  example: |-
+    // Resizable ArrayBuffer
+
+    let rab = new ArrayBuffer(1024, { maximumByteLength: 1024 ** 2 });
+    assert(rab.byteLength === 1024);
+    assert(rab.maximumByteLength === 1024 ** 2);
+    assert(rab.resizable);
+    rab.resize(rab.byteLength * 2);
+    assert(rab.byteLength === 1024 * 2);
+
+    // Transfer the first 1024 bytes.
+    let ab = rab.transfer(1024);
+
+    // rab is now detached
+    assert(rab.byteLength === 0);
+    assert(rab.maximumByteLength === 0);
+
+    // The contents are moved to ab.
+    assert(!ab.resizable);
+    assert(ab.byteLength === 1024);
+  has_specification: true
+  presented:
+    - date: "May\_2021"
diff --git a/_data/en/stage3.yml b/_data/en/stage3.yml
@@ -32,59 +32,6 @@
     - Bradley Farias
   tests:
     - 'https://github.com/tc39/test262/pull/2065'
-- title: Top-level <code>await</code>
-  id: proposal-top-level-await
-  example: |-
-    // file.html
-    &#x3C;script type=module src=&#x22;a.mjs&#x22;&#x3E;&#x3C;/script&#x3E;
-    // a.mjs
-    await import(&#x22;./b.mjs&#x22;);
-    // b.mjs
-    await import(&#x22;./a.mjs&#x22;);
-  presented:
-    - date: June&#xA0;2019
-      url: >-
-        https://github.com/tc39/notes/blob/master/meetings/2019-06/june-6.md#top-level-await-for-stage-3
-  has_specification: true
-  description: Top-level <code>await</code> enables modules to act as big async functions. With top-level <code>await</code>, ECMAScript Modules (ESM) can await resources, causing other modules who import them to wait before they start evaluating their body.
-  authors:
-    - Myles Borins
-  champions:
-    - Myles Borins
-  tests:
-    - 'https://github.com/tc39/test262/pull/2274'
-- title: RegExp Match Indices
-  id: proposal-regexp-match-indices
-  example: |-
-    const re1 = /a+(?&#x3C;Z&#x3E;z)?/;
-    // indices are relative to start of the input string:
-    const s1 = &#x22;xaaaz&#x22;;
-    const m1 = re1.exec(s1);
-    m1.indices[0][0] === 1;
-    m1.indices[0][1] === 5;
-    s1.slice(...m1.indices[0]) === &#x22;aaaz&#x22;;
-    m1.indices[1][0] === 4;
-    m1.indices[1][1] === 5;
-    s1.slice(...m1.indices[1]) === &#x22;z&#x22;;
-    m1.indices.groups[&#x22;Z&#x22;][0] === 4;
-    m1.indices.groups[&#x22;Z&#x22;][1] === 5;
-    s1.slice(...m1.indices.groups[&#x22;Z&#x22;]) === &#x22;z&#x22;;
-    // capture groups that are not matched return &#x60;undefined&#x60;:
-    const m2 = re1.exec(&#x22;xaaay&#x22;);
-    m2.indices[1] === undefined;
-    m2.indices.groups[&#x22;Z&#x22;] === undefined;
-  presented:
-    - date: December&#xA0;2019
-      url: >-
-        https://github.com/tc39/notes/blob/master/meetings/2019-12/december-3.md#regexp-match-indices-performance-feedback
-  has_specification: false
-  description: ECMAScript RegExp Match Indicies provide additional information about the start and end indices of captured substrings relative to the start of the input string.
-  authors:
-    - Ron Buckton
-  champions:
-    - Ron Buckton
-  tests:
-    - 'https://github.com/tc39/test262/pull/2309'
 - title: <code>Atomics.waitAsync</code>
   id: proposal-atomics-wait-async
   presented:
@@ -262,3 +209,48 @@
     - date: "March\_2021"
       url: >-
         https://github.com/tc39/notes/blob/master/meetings/2021-03/mar-9.md#temporal-for-stage-3
+- id: proposal-accessible-object-hasownproperty
+  title: Accessible Object.prototype.hasOwnProperty()
+  authors:
+    - James Kyle
+    - Tierney Cyren
+  champions:
+    - Tierney Cyren
+  description: Proposal for an Object.hasOwn() method to make Object.prototype.hasOwnProperty() more accessible.
+  example: >-
+    if (Object.hasOwn(object, "foo")) {
+      console.log("has property foo")
+    }
+  has_specification: true
+  presented:
+    - date: "May\_2021"
+- id: proposal-resizablearraybuffer
+  title: In-Place Resizable and Growable ArrayBuffers
+  authors:
+    - Shu-yu Guo
+  champions:
+    - Shu-yu Guo
+  description: ArrayBuffers have enabled in-memory handling of binary data and have enjoyed great success. This proposal extends the ArrayBuffer constructors to take an additional maximum length that allows in-place growth and shrinking of buffers. Similarly, SharedArrayBuffer is extended to take an additional maximum length that allows in-place growth. The transfer method is also re-introduced here as a standard way to detach ArrayBuffers, perform zero-copy moves, and to "fix" resizable ArrayBuffer instances to ArrayBuffer instances.
+  example: |-
+    // Resizable ArrayBuffer
+
+    let rab = new ArrayBuffer(1024, { maximumByteLength: 1024 ** 2 });
+    assert(rab.byteLength === 1024);
+    assert(rab.maximumByteLength === 1024 ** 2);
+    assert(rab.resizable);
+    rab.resize(rab.byteLength * 2);
+    assert(rab.byteLength === 1024 * 2);
+
+    // Transfer the first 1024 bytes.
+    let ab = rab.transfer(1024);
+
+    // rab is now detached
+    assert(rab.byteLength === 0);
+    assert(rab.maximumByteLength === 0);
+
+    // The contents are moved to ab.
+    assert(!ab.resizable);
+    assert(ab.byteLength === 1024);
+  has_specification: true
+  presented:
+    - date: "May\_2021"
diff --git a/_data/ja/stage3.yml b/_data/ja/stage3.yml
@@ -32,59 +32,6 @@
     - Bradley Farias
   tests:
     - 'https://github.com/tc39/test262/pull/2065'
-- title: Top-level <code>await</code>
-  id: proposal-top-level-await
-  example: |-
-    // file.html
-    &#x3C;script type=module src=&#x22;a.mjs&#x22;&#x3E;&#x3C;/script&#x3E;
-    // a.mjs
-    await import(&#x22;./b.mjs&#x22;);
-    // b.mjs
-    await import(&#x22;./a.mjs&#x22;);
-  presented:
-    - date: 6月&#xA0;2019
-      url: >-
-        https://github.com/tc39/notes/blob/master/meetings/2019-06/june-6.md#top-level-await-for-stage-3
-  has_specification: true
-  description: トップレベル<code>await</code>はモジュールを大きな非同期関数として実行することを可能にします。トップレベル<code>await</code>を使うことで、ECMAScript Modules (ESM)はリソースを待機することが可能となり、それらのモジュールをインポートする他のモジュールは自身の評価が始まる前に待機することになります。
-  authors:
-    - Myles Borins
-  champions:
-    - Myles Borins
-  tests:
-    - 'https://github.com/tc39/test262/pull/2274'
-- title: RegExp Match Indices
-  id: proposal-regexp-match-indices
-  example: |-
-    const re1 = /a+(?&#x3C;Z&#x3E;z)?/;
-    // indices are relative to start of the input string:
-    const s1 = &#x22;xaaaz&#x22;;
-    const m1 = re1.exec(s1);
-    m1.indices[0][0] === 1;
-    m1.indices[0][1] === 5;
-    s1.slice(...m1.indices[0]) === &#x22;aaaz&#x22;;
-    m1.indices[1][0] === 4;
-    m1.indices[1][1] === 5;
-    s1.slice(...m1.indices[1]) === &#x22;z&#x22;;
-    m1.indices.groups[&#x22;Z&#x22;][0] === 4;
-    m1.indices.groups[&#x22;Z&#x22;][1] === 5;
-    s1.slice(...m1.indices.groups[&#x22;Z&#x22;]) === &#x22;z&#x22;;
-    // capture groups that are not matched return &#x60;undefined&#x60;:
-    const m2 = re1.exec(&#x22;xaaay&#x22;);
-    m2.indices[1] === undefined;
-    m2.indices.groups[&#x22;Z&#x22;] === undefined;
-  presented:
-    - date: 12月&#xA0;2019
-      url: >-
-        https://github.com/tc39/notes/blob/master/meetings/2019-12/december-3.md#regexp-match-indices-performance-feedback
-  has_specification: false
-  description: ECMAScript RegExp Match Indiciesは入力された文字列の先頭を基準にキャプチャされた部分文字列の開始インデックスと終了インデックスについての追加の情報を提供します。
-  authors:
-    - Ron Buckton
-  champions:
-    - Ron Buckton
-  tests:
-    - 'https://github.com/tc39/test262/pull/2309'
 - title: <code>Atomics.waitAsync</code>
   id: proposal-atomics-wait-async
   presented:
@@ -263,3 +210,48 @@
     - date: 3月&#xA0;2021
       url: >-
         https://github.com/tc39/notes/blob/master/meetings/2021-03/mar-9.md#temporal-for-stage-3
+- id: proposal-accessible-object-hasownproperty
+  title: Accessible Object.prototype.hasOwnProperty()
+  authors:
+    - James Kyle
+    - Tierney Cyren
+  champions:
+    - Tierney Cyren
+  description: Proposal for an Object.hasOwn() method to make Object.prototype.hasOwnProperty() more accessible.
+  example: >-
+    if (Object.hasOwn(object, "foo")) {
+      console.log("has property foo")
+    }
+  has_specification: true
+  presented:
+    - date: "May\_2021"
+- id: proposal-resizablearraybuffer
+  title: In-Place Resizable and Growable ArrayBuffers
+  authors:
+    - Shu-yu Guo
+  champions:
+    - Shu-yu Guo
+  description: ArrayBuffers have enabled in-memory handling of binary data and have enjoyed great success. This proposal extends the ArrayBuffer constructors to take an additional maximum length that allows in-place growth and shrinking of buffers. Similarly, SharedArrayBuffer is extended to take an additional maximum length that allows in-place growth. The transfer method is also re-introduced here as a standard way to detach ArrayBuffers, perform zero-copy moves, and to "fix" resizable ArrayBuffer instances to ArrayBuffer instances.
+  example: |-
+    // Resizable ArrayBuffer
+
+    let rab = new ArrayBuffer(1024, { maximumByteLength: 1024 ** 2 });
+    assert(rab.byteLength === 1024);
+    assert(rab.maximumByteLength === 1024 ** 2);
+    assert(rab.resizable);
+    rab.resize(rab.byteLength * 2);
+    assert(rab.byteLength === 1024 * 2);
+
+    // Transfer the first 1024 bytes.
+    let ab = rab.transfer(1024);
+
+    // rab is now detached
+    assert(rab.byteLength === 0);
+    assert(rab.maximumByteLength === 0);
+
+    // The contents are moved to ab.
+    assert(!ab.resizable);
+    assert(ab.byteLength === 1024);
+  has_specification: true
+  presented:
+    - date: "May\_2021"