Merge pull request #41 from gibson042/gh-1-slicetoimmutable-clamping

Normative: Align ArrayBuffer sliceToImmutable length clamping with slice as suggested by @waldemarhorwat. Thanks!
tc39 · Feb 19, 2025 · c5a96d3 · c5a96d3
2 parents 1dd81c7 + 9fe3f1f
commit c5a96d3
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/spec.emu b/spec.emu
@@ -683,9 +683,7 @@ contributors: Mark S. Miller, Richard Gibson
             1. Let _bounds_ be ? ResolveBounds(_len_, _start_, _end_).
             1. Let _first_ be _bounds_.[[From]].
             1. Let _final_ be _bounds_.[[To]].
-            1. Let _newLen_ be _final_ - _first_.
-            1. NOTE: This differs from <emu-xref href="#sec-arraybuffer.prototype.slice" title></emu-xref>, which instead clamps _newLen_ to be non-negative.
-            1. If _newLen_ &lt; 0, throw a *RangeError* exception.
+            1. Let _newLen_ be max(_final_ - _first_, 0).
             1. NOTE: Side-effects of the above steps may have detached or resized _O_.
             1. If IsDetachedBuffer(_O_) is *true*, throw a *TypeError* exception.
             1. Let _fromBuf_ be _O_.[[ArrayBufferData]].