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AK: Implement string formatting for FixedStringBuffers

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To ensure this happens without duplicating code, we allow forcing a
StringBuilder object to only use the inline buffer, so the code in the
AK/Format.cpp file doesn't need to deal with different underlying
storage types (expandable or inline-fixed) at all.
This commit is contained in:
Liav A 2023-08-12 00:38:01 +03:00 • committed by Andrew Kaster
parent b096f39e92
commit b2fd51f561
3 changed files with 76 additions and 6 deletions
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20
AK/StringBuilder.h
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@ -16,11 +16,19 @@ namespace AK {
class StringBuilder {
public:
static constexpr size_t inline_capacity = 256;
using OutputType = DeprecatedString;
static ErrorOr<StringBuilder> create(size_t initial_capacity = inline_capacity);
explicit StringBuilder(size_t initial_capacity = inline_capacity);
enum class UseInlineCapacityOnly {
Yes,
No,
};
explicit StringBuilder(UseInlineCapacityOnly use_inline_capacity_only);
~StringBuilder() = default;
ErrorOr<void> try_append(StringView);
@ -73,9 +81,9 @@ public:
[[nodiscard]] StringView string_view() const;
void clear();
[[nodiscard]] size_t length() const { return m_buffer.size(); }
[[nodiscard]] bool is_empty() const { return m_buffer.is_empty(); }
void trim(size_t count) { m_buffer.resize(m_buffer.size() - count); }
[[nodiscard]] size_t length() const;
[[nodiscard]] bool is_empty() const;
void trim(size_t count);
template<class SeparatorType, class CollectionType>
void join(SeparatorType const& separator, CollectionType const& collection, StringView fmtstr = "{}"sv)
@ -98,10 +106,10 @@ public:
private:
ErrorOr<void> will_append(size_t);
u8* data() { return m_buffer.data(); }
u8 const* data() const { return m_buffer.data(); }
u8* data();
u8 const* data() const;
static constexpr size_t inline_capacity = 256;
UseInlineCapacityOnly m_use_inline_capacity_only { UseInlineCapacityOnly::No };
Detail::ByteBuffer<inline_capacity> m_buffer;
};