Normative: Call NumberToRawBytes instead of the conversion operation …

…to get the byte values list in Atomics.compareExchange
tc39 · Feb 14, 2017 · 90ed6ce · 90ed6ce
1 parent 7949fae
commit 90ed6ce
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/spec.html b/spec.html
@@ -34724,10 +34724,10 @@ <h1>Atomics.compareExchange( _typedArray_, _index_, _expectedValue_, _replacemen
         1. Let _expected_ be ? ToInteger(_expectedValue_).
         1. Let _replacement_ be ? ToInteger(_replacementValue_).
         1. Let _arrayTypeName_ be _typedArray_.[[TypedArrayName]].
-        1. Let _convOp_ be the conversion operation specified in <emu-xref href="#table-49"></emu-xref> for _arrayTypeName_.
-        1. Let _expectedBytes_ be _convOp_(_expected_).
-        1. Let _elementSize_ be the Number value of the Element Size value specified in <emu-xref href="#table-49"></emu-xref> for _arrayTypeName_.
         1. Let _elementType_ be the String value of the Element Type value in <emu-xref href="#table-49"></emu-xref> for _arrayTypeName_.
+        1. Let _isLittleEndian_ be the value of the [[LittleEndian]] field of the surrounding agent's Agent Record.
+        1. Let _expectedBytes_ be NumberToRawBytes(_elementType_, _expected_, _isLittleEndian_).
+        1. Let _elementSize_ be the Number value of the Element Size value specified in <emu-xref href="#table-49"></emu-xref> for _arrayTypeName_.
         1. Let _offset_ be _typedArray_.[[ByteOffset]].
         1. Let _indexedPosition_ be (_i_ &times; _elementSize_) + _offset_.
         1. Let `compareExchange` denote a semantic function of two List of byte values arguments that returns the second argument if the first argument is element-wise equal to _expectedBytes_.