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LibJS: Guard IntegerIndexedElementSet with receiver check
This is a normative change in the ECMA-262 spec. See:
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2 changed files with 42 additions and 4 deletions
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@ -331,11 +331,18 @@ public:
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auto numeric_index = canonical_numeric_index_string(property_key, CanonicalIndexMode::DetectNumericRoundtrip);
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// b. If numericIndex is not undefined, then
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if (!numeric_index.is_undefined()) {
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// i. Perform ? IntegerIndexedElementSet(O, numericIndex, V).
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TRY(integer_indexed_element_set<T>(*this, numeric_index, value));
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// i. If SameValue(O, Receiver) is true, then
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if (same_value(this, receiver)) {
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// 1. Perform ? IntegerIndexedElementSet(O, numericIndex, V).
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TRY(integer_indexed_element_set<T>(*this, numeric_index, value));
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// ii. Return true.
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return true;
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// 2. Return true.
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return true;
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}
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// ii. If IsValidIntegerIndex(O, numericIndex) is false, return true.
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if (!is_valid_integer_index(*this, numeric_index))
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return true;
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}
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}
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