fixup! [js-api] Extend the WebAssembly.Table API.

Author: Ms2ger

document/js-api/index.bs

@@ -766,8 +766,10 @@ which can be simultaneously referenced by multiple {{Instance}} objects. Each
     1. let |initial| be |descriptor|["initial"].
     1. If |descriptor|["maximum"] is [=present=], let |maximum| be |descriptor|["maximum"]; otherwise, let |maximum| be empty.
     1. If |maximum| is not empty and |maximum| < |initial|, throw a {{RangeError}} exception.
-    1. If |value| is missing, set |value| to [=DefaultValue=](|elementType|).
-    1. Let |ref| be ? [=ToWebAssemblyValue=](|value|, |elementType|).
+    1. If |value| is missing,
+        1. Let |ref| be [=DefaultValue=](|elementType|).
+    1. Otherwise,
+        1. Let |ref| be ? [=ToWebAssemblyValue=](|value|, |elementType|).
     1. Let |type| be the [=table type=] {[=table type|𝗆𝗂𝗇=] |initial|, [=table type|𝗆𝖺𝗑=] |maximum|} |elementType|.
     1. Let |store| be the [=surrounding agent=]'s [=associated store=].
     1. Let (|store|, |tableaddr|) be [=table_alloc=](|store|, |type|, |ref|). <!-- TODO(littledan): Report allocation failure https://github.com/WebAssembly/spec/issues/584 -->
@@ -783,8 +785,10 @@ which can be simultaneously referenced by multiple {{Instance}} objects. Each
     1. Let |initialSize| be the length of **this**.\[[Values]].
     1. Let |store| be the [=surrounding agent=]'s [=associated store=].
     1. Let (<var ignore>limits</var>, |elementType|) be [=table_type=](|tableaddr|).
-    1. If |value| is missing, set |value| to [=DefaultValue=](|elementType|).
-    1. Let |ref| be ? [=ToWebAssemblyValue=](|value|, |elementType|).
+    1. If |value| is missing,
+        1. Let |ref| be [=DefaultValue=](|elementType|).
+    1. Otherwise,
+        1. Let |ref| be ? [=ToWebAssemblyValue=](|value|, |elementType|).
     1. Let |result| be [=table_grow=](|store|, |tableaddr|, |delta|, |ref|).
     1. If |result| is [=error=], throw a {{RangeError}} exception.
 
@@ -812,8 +816,10 @@ which can be simultaneously referenced by multiple {{Instance}} objects. Each
     1. Let |tableaddr| be **this**.\[[Table]].
     1. Let |values| be **this**.\[[Values]].
     1. Let (<var ignore>limits</var>, |elementType|) be [=table_type=](|tableaddr|).
-    1. If |value| is missing, set |value| to [=DefaultValue=](|elementType|).
-    1. Let |ref| be ? [=ToWebAssemblyValue=](|value|, |elementType|).
+    1. If |value| is missing,
+        1. Let |ref| be [=DefaultValue=](|elementType|).
+    1. Otherwise,
+        1. Let |ref| be ? [=ToWebAssemblyValue=](|value|, |elementType|).
     1. Let |store| be the [=surrounding agent=]'s [=associated store=].
     1. Let |store| be [=table_write=](|store|, |tableaddr|, |index|, |ref|).
     1. If |store| is [=error=], throw a {{RangeError}} exception.