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b12420725f
console: switch to /Zc:wchar_t (native wchar_t)
This matches what we use in OpenConsole and makes {fmt} play nice.
I've also removed the workaround we introduced into OutputCellIterator
to work around not using /Zc:wchar_t.
Fixes MSFT:27626309.
Fixes GH-2673.
Retrieved from https://microsoft.visualstudio.com os.2020 OS official/rs_onecore_dep_uxp 1508f7c232ec58bebc37fedfdec3eb8f9bff5502
126 lines
4.4 KiB
C++
126 lines
4.4 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- OutputCellIterator.hpp
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Abstract:
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- Read-only view into an entire batch of data to be written into the output buffer.
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- This is done for performance reasons (avoid heap allocs and copies).
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Author:
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- Michael Niksa (MiNiksa) 06-Oct-2018
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Revision History:
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- Based on work from OutputCell.hpp/cpp by Austin Diviness (AustDi)
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--*/
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#pragma once
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#include "TextAttribute.hpp"
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#include "OutputCell.hpp"
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#include "OutputCellView.hpp"
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class OutputCellIterator final
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{
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public:
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using iterator_category = std::input_iterator_tag;
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using value_type = OutputCellView;
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using difference_type = ptrdiff_t;
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using pointer = OutputCellView*;
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using reference = OutputCellView&;
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OutputCellIterator(const wchar_t& wch, const size_t fillLimit = 0) noexcept;
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OutputCellIterator(const TextAttribute& attr, const size_t fillLimit = 0) noexcept;
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OutputCellIterator(const wchar_t& wch, const TextAttribute& attr, const size_t fillLimit = 0) noexcept;
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OutputCellIterator(const CHAR_INFO& charInfo, const size_t fillLimit = 0) noexcept;
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OutputCellIterator(const std::wstring_view utf16Text);
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OutputCellIterator(const std::wstring_view utf16Text, const TextAttribute attribute);
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OutputCellIterator(const std::basic_string_view<WORD> legacyAttributes) noexcept;
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OutputCellIterator(const std::basic_string_view<CHAR_INFO> charInfos) noexcept;
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OutputCellIterator(const std::basic_string_view<OutputCell> cells);
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~OutputCellIterator() = default;
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OutputCellIterator& operator=(const OutputCellIterator& it) = default;
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operator bool() const noexcept;
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ptrdiff_t GetCellDistance(OutputCellIterator other) const noexcept;
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ptrdiff_t GetInputDistance(OutputCellIterator other) const noexcept;
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friend ptrdiff_t operator-(OutputCellIterator one, OutputCellIterator two) = delete;
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OutputCellIterator& operator++();
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OutputCellIterator operator++(int);
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const OutputCellView& operator*() const noexcept;
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const OutputCellView* operator->() const noexcept;
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private:
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enum class Mode
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{
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// Loose mode is where we're given text and attributes in a raw sort of form
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// like while data is being inserted from an API call.
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Loose,
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// Loose mode with only text is where we're given just text and we want
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// to use the attribute already in the buffer when writing
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LooseTextOnly,
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// Fill mode is where we were given one thing and we just need to keep giving
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// that back over and over for eternity.
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Fill,
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// Given a run of legacy attributes, convert each of them and insert only attribute data.
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LegacyAttr,
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// CharInfo mode is where we've been given a pair of text and attribute for each
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// cell in the legacy format from an API call.
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CharInfo,
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// Cell mode is where we have an already fully structured cell data usually
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// from accessing/copying data already put into the OutputBuffer.
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Cell,
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};
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Mode _mode;
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std::basic_string_view<WORD> _legacyAttrs;
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std::variant<
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std::wstring_view,
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std::basic_string_view<WORD>,
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std::basic_string_view<CHAR_INFO>,
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std::basic_string_view<OutputCell>,
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std::monostate>
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_run;
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TextAttribute _attr;
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bool _TryMoveTrailing() noexcept;
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static OutputCellView s_GenerateView(const std::wstring_view view);
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static OutputCellView s_GenerateView(const std::wstring_view view,
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const TextAttribute attr);
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static OutputCellView s_GenerateView(const std::wstring_view view,
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const TextAttribute attr,
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const TextAttributeBehavior behavior);
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static OutputCellView s_GenerateView(const wchar_t& wch) noexcept;
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static OutputCellView s_GenerateViewLegacyAttr(const WORD& legacyAttr) noexcept;
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static OutputCellView s_GenerateView(const TextAttribute& attr) noexcept;
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static OutputCellView s_GenerateView(const wchar_t& wch, const TextAttribute& attr) noexcept;
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static OutputCellView s_GenerateView(const CHAR_INFO& charInfo) noexcept;
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static OutputCellView s_GenerateView(const OutputCell& cell);
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OutputCellView _currentView;
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size_t _pos;
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size_t _distance;
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size_t _fillLimit;
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};
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