Editorial: use abstract closure in Proxy.revocable (tc39#2439)

mathiasbynens · Jun 24, 2021 · 08d2018 · 08d2018
1 parent 5872981
commit 08d2018
Showing 1 changed file with 9 additions and 20 deletions.
diff --git a/spec.html b/spec.html
@@ -40466,27 +40466,12 @@ <h1>Properties of the Proxy Constructor</h1>
         <li>has the following properties:</li>
       </ul>
 
-      <emu-clause id="sec-proxy.revocable">
+      <emu-clause id="sec-proxy.revocable" oldids="sec-proxy-revocation-functions">
         <h1>Proxy.revocable ( _target_, _handler_ )</h1>
         <p>The `Proxy.revocable` function is used to create a revocable Proxy object. When `Proxy.revocable` is called with arguments _target_ and _handler_, the following steps are taken:</p>
         <emu-alg>
           1. Let _p_ be ? ProxyCreate(_target_, _handler_).
-          1. Let _steps_ be the algorithm steps defined in <emu-xref href="#sec-proxy-revocation-functions" title></emu-xref>.
-          1. Let _length_ be the number of non-optional parameters of the function definition in <emu-xref href="#sec-proxy-revocation-functions" title></emu-xref>.
-          1. Let _revoker_ be ! CreateBuiltinFunction(_steps_, _length_, *""*, &laquo; [[RevocableProxy]] &raquo;).
-          1. Set _revoker_.[[RevocableProxy]] to _p_.
-          1. Let _result_ be ! OrdinaryObjectCreate(%Object.prototype%).
-          1. Perform ! CreateDataPropertyOrThrow(_result_, *"proxy"*, _p_).
-          1. Perform ! CreateDataPropertyOrThrow(_result_, *"revoke"*, _revoker_).
-          1. Return _result_.
-        </emu-alg>
-
-        <emu-clause id="sec-proxy-revocation-functions">
-          <h1>Proxy Revocation Functions</h1>
-          <p>A Proxy revocation function is an anonymous built-in function that has the ability to invalidate a specific Proxy object.</p>
-          <p>Each Proxy revocation function has a [[RevocableProxy]] internal slot.</p>
-          <p>When a Proxy revocation function is called, the following steps are taken:</p>
-          <emu-alg>
+          1. Let _revokerClosure_ be a new Abstract Closure with no parameters that captures nothing and performs the following steps when called:
             1. Let _F_ be the active function object.
             1. Let _p_ be _F_.[[RevocableProxy]].
             1. If _p_ is *null*, return *undefined*.
@@ -40495,9 +40480,13 @@ <h1>Proxy Revocation Functions</h1>
             1. Set _p_.[[ProxyTarget]] to *null*.
             1. Set _p_.[[ProxyHandler]] to *null*.
             1. Return *undefined*.
-          </emu-alg>
-          <p>The *"length"* property of a Proxy revocation function is *+0*<sub>𝔽</sub>.</p>
-        </emu-clause>
+          1. Let _revoker_ be ! CreateBuiltinFunction(_revokerClosure_, 0, *""*, &laquo; [[RevocableProxy]] &raquo;).
+          1. Set _revoker_.[[RevocableProxy]] to _p_.
+          1. Let _result_ be ! OrdinaryObjectCreate(%Object.prototype%).
+          1. Perform ! CreateDataPropertyOrThrow(_result_, *"proxy"*, _p_).
+          1. Perform ! CreateDataPropertyOrThrow(_result_, *"revoke"*, _revoker_).
+          1. Return _result_.
+        </emu-alg>
       </emu-clause>
     </emu-clause>
   </emu-clause>