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LibJS: Use array-like size for IndexedProperties::is_empty()

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Some things, like (the non-generic version of) Array.prototype.pop(),
check is_empty() to determine whether an action, like removing elements,
can be performed. We need to know the array-like size for that, not the
size of the underlying storage, which can be different - and is not
something IndexedProperties should expose so I removed its size().

Fixes #3948.
This commit is contained in:
Linus Groh 2020-11-05 18:39:02 +00:00 • committed by Andreas Kling
parent 0bb66890c8
commit dec6c0a207
2 changed files with 7 additions and 2 deletions
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3
Libraries/LibJS/Runtime/IndexedProperties.h
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@ -161,8 +161,7 @@ public:
IndexedPropertyIterator begin(bool skip_empty = true) const { return IndexedPropertyIterator(*this, 0, skip_empty); };
IndexedPropertyIterator end() const { return IndexedPropertyIterator(*this, array_like_size(), false); };
size_t size() const { return m_storage->size(); }
bool is_empty() const { return size() == 0; }
bool is_empty() const { return array_like_size() == 0; }
size_t array_like_size() const { return m_storage->array_like_size(); }
void set_array_like_size(size_t);