79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
#pragma once
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#include "glacier/container/vector.h"
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#include "glacier/string/string.h"
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#include "glacier/string/string_view.h"
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namespace glcr {
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class StringBuilder {
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public:
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virtual uint64_t size() const = 0;
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virtual void PushBack(const StringView& str) = 0;
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virtual void PushBack(const char str) = 0;
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virtual void DeleteLast() = 0;
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virtual void Reset() = 0;
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virtual String ToString() const = 0;
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virtual operator StringView() const = 0;
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};
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class VariableStringBuilder : public StringBuilder {
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public:
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VariableStringBuilder() = default;
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VariableStringBuilder(const VariableStringBuilder&) = delete;
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VariableStringBuilder(VariableStringBuilder&&) = default;
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~VariableStringBuilder() = default;
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virtual uint64_t size() const override;
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virtual void PushBack(const StringView& str) override;
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virtual void PushBack(const char str) override;
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virtual void DeleteLast() override;
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virtual void Reset() override;
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virtual String ToString() const override;
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// Note that this could become invalidated
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// at any time if more characters are pushed
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// onto the builder.
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virtual operator StringView() const override;
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private:
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Vector<char> data_;
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};
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class FixedStringBuilder : public StringBuilder {
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public:
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FixedStringBuilder() = delete;
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FixedStringBuilder(const FixedStringBuilder&) = delete;
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FixedStringBuilder(FixedStringBuilder&&) = delete;
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~FixedStringBuilder() = default;
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FixedStringBuilder(char* buffer, uint64_t size)
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: buffer_(buffer), capacity_(size), size_(0) {}
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virtual uint64_t size() const override { return size_; }
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virtual void PushBack(const StringView& str) override;
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virtual void PushBack(const char str) override;
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virtual void DeleteLast() override;
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virtual void Reset() override;
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virtual String ToString() const override;
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virtual operator StringView() const override;
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private:
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char* buffer_;
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uint64_t capacity_;
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uint64_t size_;
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};
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} // namespace glcr
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