mirror of https://github.com/axmolengine/axmol.git
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
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#ifndef STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#define STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#if defined(_MSC_VER) || \
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(defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
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(__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
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#pragma once
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#endif
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#include "yaml-cpp/noexcept.h"
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#include "stream.h"
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#include <cstddef>
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namespace YAML {
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class StreamCharSource {
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public:
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StreamCharSource(const Stream& stream) : m_offset(0), m_stream(stream) {}
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StreamCharSource(const StreamCharSource& source) = default;
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StreamCharSource(StreamCharSource&&) YAML_CPP_NOEXCEPT = default;
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StreamCharSource& operator=(const StreamCharSource&) = delete;
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StreamCharSource& operator=(StreamCharSource&&) = delete;
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~StreamCharSource() = default;
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operator bool() const;
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char operator[](std::size_t i) const { return m_stream.CharAt(m_offset + i); }
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bool operator!() const { return !static_cast<bool>(*this); }
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const StreamCharSource operator+(int i) const;
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private:
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std::size_t m_offset;
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const Stream& m_stream;
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};
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inline StreamCharSource::operator bool() const {
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return m_stream.ReadAheadTo(m_offset);
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}
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inline const StreamCharSource StreamCharSource::operator+(int i) const {
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StreamCharSource source(*this);
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if (static_cast<int>(source.m_offset) + i >= 0)
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source.m_offset += static_cast<std::size_t>(i);
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else
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source.m_offset = 0;
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return source;
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}
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} // namespace YAML
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#endif // STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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