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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/built-ins/AsyncFunction/instance-construct-throws.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/AsyncFunction/instance-construct-throws.js')
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diff --git a/js/src/tests/test262/built-ins/AsyncFunction/instance-construct-throws.js b/js/src/tests/test262/built-ins/AsyncFunction/instance-construct-throws.js
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+// Copyright 2016 Microsoft, Inc. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+author: Brian Terlson <brian.terlson@microsoft.com>
+esid: sec-async-function-instances
+description: >
+ Async function instances are not constructors and do not have a
+ [[Construct]] slot.
+info: |
+ 25.5.1.1 AsyncFunction( p1, p2, … , pn, body )
+
+ ...
+ 3. Return CreateDynamicFunction(C, NewTarget, "async", args).
+
+ 19.2.1.1.1 Runtime Semantics: CreateDynamicFunction( constructor, newTarget, kind, args )
+
+ ...
+ 33. Perform FunctionInitialize(F, Normal, parameters, body, scope).
+ 34. If kind is "generator", then
+ ...
+ 35. Else if kind is "normal", perform MakeConstructor(F).
+ 36. NOTE: Async functions are not constructable and do not have a [[Construct]] internal method
+ or a "prototype" property.
+ ...
+---*/
+
+async function foo() {}
+assert.throws(TypeError, function() {
+ new foo();
+});
+
+var AsyncFunction = Object.getPrototypeOf(foo).constructor;
+var instance = AsyncFunction();
+
+assert.throws(TypeError, function() {
+ new instance();
+})
+
+reportCompare(0, 0);