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LibJS+AK: Use Vector<u16, 1> for UTF-16 string storage
It's very common to encounter single-character strings in JavaScript on the web. We can make such strings significantly lighter by having a 1-character inline capacity on the Vectors.
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7 changed files with 27 additions and 26 deletions
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@ -20,18 +20,18 @@ public:
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~Utf16StringImpl() = default;
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static NonnullRefPtr<Utf16StringImpl> create();
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static NonnullRefPtr<Utf16StringImpl> create(Vector<u16>);
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static NonnullRefPtr<Utf16StringImpl> create(Vector<u16, 1>);
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static NonnullRefPtr<Utf16StringImpl> create(StringView const&);
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static NonnullRefPtr<Utf16StringImpl> create(Utf16View const&);
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Vector<u16> const& string() const;
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Vector<u16, 1> const& string() const;
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Utf16View view() const;
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private:
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Utf16StringImpl() = default;
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explicit Utf16StringImpl(Vector<u16> string);
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explicit Utf16StringImpl(Vector<u16, 1> string);
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Vector<u16> m_string;
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Vector<u16, 1> m_string;
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};
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}
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@ -39,11 +39,11 @@ private:
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class Utf16String {
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public:
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Utf16String();
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explicit Utf16String(Vector<u16>);
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explicit Utf16String(Vector<u16, 1>);
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explicit Utf16String(StringView const&);
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explicit Utf16String(Utf16View const&);
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Vector<u16> const& string() const;
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Vector<u16, 1> const& string() const;
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Utf16View view() const;
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Utf16View substring_view(size_t code_unit_offset, size_t code_unit_length) const;
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Utf16View substring_view(size_t code_unit_offset) const;
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