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Remove most uses of CompareInBounds #13244

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Jul 1, 2022
Merged

Remove most uses of CompareInBounds #13244

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9596b06
Remove most uses of `CompareInBounds`
carlos-zamora Jun 7, 2022
4ce925e
address PR comments
carlos-zamora Jun 9, 2022
b105d68
clamp to inclusive pos & compare returns 0/1
carlos-zamora Jun 9, 2022
e9b2ffc
fix test
carlos-zamora Jun 9, 2022
e0695ec
make 'MoveToNextGlyph' prettier
carlos-zamora Jun 10, 2022
49c33d9
Merge branch 'main' into dev/cazamor/remove-compareInBounds
carlos-zamora Jun 10, 2022
c98940a
backwards
carlos-zamora Jun 30, 2022
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28 changes: 17 additions & 11 deletions src/buffer/out/textBuffer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1138,7 +1138,7 @@ til::point TextBuffer::GetWordStart(const til::point target, const std::wstring_
// that it actually points to a space in the buffer
copy = bufferSize.BottomRightInclusive();
}
else if (bufferSize.CompareInBounds(target, limit, true) >= 0)
else if (target >= limit)
{
// if at/past the limit --> clamp to limit
copy = limitOptional.value_or(bufferSize.BottomRightInclusive());
Expand Down Expand Up @@ -1254,7 +1254,7 @@ til::point TextBuffer::GetWordEnd(const til::point target, const std::wstring_vi
// Already at/past the limit. Can't move forward.
const auto bufferSize{ GetSize() };
const auto limit{ limitOptional.value_or(bufferSize.EndExclusive()) };
if (bufferSize.CompareInBounds(target, limit, true) >= 0)
if (target >= limit)
{
return target;
}
Expand Down Expand Up @@ -1282,7 +1282,7 @@ til::point TextBuffer::_GetWordEndForAccessibility(const til::point target, cons
const auto bufferSize{ GetSize() };
auto result{ target };

if (bufferSize.CompareInBounds(target, limit, true) >= 0)
if (target >= limit)
{
// if we're already on/past the last RegularChar,
// clamp result to that position
Expand Down Expand Up @@ -1419,7 +1419,7 @@ bool TextBuffer::MoveToNextWord(til::point& pos, const std::wstring_view wordDel
const auto limit{ limitOptional.value_or(bufferSize.EndExclusive()) };
const auto copy{ _GetWordEndForAccessibility(pos, wordDelimiters, limit) };

if (bufferSize.CompareInBounds(copy, limit, true) >= 0)
if (copy >= limit)
{
return false;
}
Expand Down Expand Up @@ -1466,7 +1466,7 @@ til::point TextBuffer::GetGlyphStart(const til::point pos, std::optional<til::po
const auto limit{ limitOptional.value_or(bufferSize.EndExclusive()) };

// Clamp pos to limit
if (bufferSize.CompareInBounds(resultPos, limit, true) > 0)
if (resultPos > limit)
{
resultPos = limit;
}
Expand Down Expand Up @@ -1494,7 +1494,7 @@ til::point TextBuffer::GetGlyphEnd(const til::point pos, bool accessibilityMode,
const auto limit{ limitOptional.value_or(bufferSize.EndExclusive()) };

// Clamp pos to limit
if (bufferSize.CompareInBounds(resultPos, limit, true) > 0)
if (resultPos > limit)
{
resultPos = limit;
}
Expand Down Expand Up @@ -1524,9 +1524,15 @@ til::point TextBuffer::GetGlyphEnd(const til::point pos, bool accessibilityMode,
bool TextBuffer::MoveToNextGlyph(til::point& pos, bool allowExclusiveEnd, std::optional<til::point> limitOptional) const
{
const auto bufferSize = GetSize();
const auto limit{ limitOptional.value_or(bufferSize.EndExclusive()) };

const auto distanceToLimit{ bufferSize.CompareInBounds(pos, limit, true) };
bool pastEndExclusive = false;
const auto limit = [bufferSize, limitOptional](bool& pastEndExclusive) {
const auto endExclusive{ bufferSize.EndExclusive() };
const auto val = limitOptional.value_or(endExclusive);
pastEndExclusive = val > endExclusive;
return pastEndExclusive ? endExclusive : val;
}(pastEndExclusive);

const auto distanceToLimit{ bufferSize.CompareInBounds(pos, limit) + (pastEndExclusive ? 1 : 0) };
if (distanceToLimit >= 0)
{
// Corner Case: we're on/past the limit
Expand Down Expand Up @@ -1569,7 +1575,7 @@ bool TextBuffer::MoveToPreviousGlyph(til::point& pos, std::optional<til::point>
const auto bufferSize = GetSize();
const auto limit{ limitOptional.value_or(bufferSize.EndExclusive()) };

if (bufferSize.CompareInBounds(pos, limit, true) > 0)
if (pos > limit)
{
// we're past the end
// clamp us to the limit
Expand Down Expand Up @@ -1611,7 +1617,7 @@ const std::vector<til::inclusive_rect> TextBuffer::GetTextRects(til::point start
// (0,0) is the top-left of the screen
// the physically "higher" coordinate is closer to the top-left
// the physically "lower" coordinate is closer to the bottom-right
const auto [higherCoord, lowerCoord] = bufferSize.CompareInBounds(start, end) <= 0 ?
const auto [higherCoord, lowerCoord] = start <= end ?
std::make_tuple(start, end) :
std::make_tuple(end, start);

Expand Down
6 changes: 3 additions & 3 deletions src/cascadia/TerminalCore/TerminalSelection.cpp
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Expand Up @@ -182,7 +182,7 @@ void Terminal::SetSelectionEnd(const til::point viewportPos, std::optional<Selec
// - the new start/end for a selection
std::pair<til::point, til::point> Terminal::_PivotSelection(const til::point targetPos, bool& targetStart) const
{
if (targetStart = _activeBuffer().GetSize().CompareInBounds(targetPos, _selection->pivot) <= 0)
if (targetStart = targetPos <= _selection->pivot)
{
// target is before pivot
// treat target as start
Expand Down Expand Up @@ -424,7 +424,7 @@ void Terminal::_MoveByWord(SelectionDirection direction, til::point& pos)
case SelectionDirection::Left:
{
const auto wordStartPos{ _activeBuffer().GetWordStart(pos, _wordDelimiters) };
if (_activeBuffer().GetSize().CompareInBounds(_selection->pivot, pos) < 0)
if (_selection->pivot < pos)
{
// If we're moving towards the pivot, move one more cell
pos = wordStartPos;
Expand All @@ -447,7 +447,7 @@ void Terminal::_MoveByWord(SelectionDirection direction, til::point& pos)
case SelectionDirection::Right:
{
const auto wordEndPos{ _activeBuffer().GetWordEnd(pos, _wordDelimiters) };
if (_activeBuffer().GetSize().CompareInBounds(pos, _selection->pivot) < 0)
if (pos < _selection->pivot)
{
// If we're moving towards the pivot, move one more cell
pos = _activeBuffer().GetWordEnd(pos, _wordDelimiters);
Expand Down
46 changes: 20 additions & 26 deletions src/types/UiaTextRangeBase.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -70,7 +70,7 @@ try
RETURN_IF_FAILED(RuntimeClassInitialize(pData, pProvider, wordDelimiters));

// start is before/at end, so this is valid
if (_pData->GetTextBuffer().GetSize().CompareInBounds(start, end, true) <= 0)
if (start <= end)
{
_start = start;
_end = end;
Expand Down Expand Up @@ -166,7 +166,7 @@ bool UiaTextRangeBase::SetEndpoint(TextPatternRangeEndpoint endpoint, const til:
case TextPatternRangeEndpoint_End:
_end = val;
// if end is before start...
if (bufferSize.CompareInBounds(_end, _start, true) < 0)
if (_end < _start)
{
// make this range degenerate at end
_start = _end;
Expand All @@ -175,7 +175,7 @@ bool UiaTextRangeBase::SetEndpoint(TextPatternRangeEndpoint endpoint, const til:
case TextPatternRangeEndpoint_Start:
_start = val;
// if start is after end...
if (bufferSize.CompareInBounds(_start, _end, true) > 0)
if (_start > _end)
{
// make this range degenerate at start
_end = _start;
Expand Down Expand Up @@ -249,10 +249,10 @@ try
// This is a temporary solution to comparing two UTRs from different TextBuffers
// Ensure both endpoints fit in the current buffer.
const auto bufferSize = _pData->GetTextBuffer().GetSize();
RETURN_HR_IF(E_FAIL, !bufferSize.IsInBounds(mine, true) || !bufferSize.IsInBounds(other, true));
RETURN_HR_IF(E_FAIL, !bufferSize.IsInBounds(mine) || !bufferSize.IsInBounds(other));
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// compare them
*pRetVal = bufferSize.CompareInBounds(mine, other, true);
*pRetVal = bufferSize.CompareInBounds(mine, other);
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UiaTracing::TextRange::CompareEndpoints(*this, endpoint, *range, targetEndpoint, *pRetVal);
return S_OK;
Expand Down Expand Up @@ -293,7 +293,7 @@ void UiaTextRangeBase::_expandToEnclosingUnit(TextUnit unit)
// If we're past document end,
// set us to ONE BEFORE the document end.
// This allows us to expand properly.
if (bufferSize.CompareInBounds(_start, documentEnd, true) >= 0)
if (_start >= documentEnd)
{
_start = documentEnd;
bufferSize.DecrementInBounds(_start, true);
Expand Down Expand Up @@ -653,8 +653,8 @@ try
bufferSize.IncrementInBounds(end, true);

// make sure what was found is within the bounds of the current range
if ((searchDirection == Search::Direction::Forward && bufferSize.CompareInBounds(end, _end, true) < 0) ||
(searchDirection == Search::Direction::Backward && bufferSize.CompareInBounds(start, _start) > 0))
if ((searchDirection == Search::Direction::Forward && end < _end) ||
(searchDirection == Search::Direction::Backward && start > _start))
{
RETURN_IF_FAILED(Clone(ppRetVal));
auto& range = static_cast<UiaTextRangeBase&>(**ppRetVal);
Expand Down Expand Up @@ -872,15 +872,15 @@ IFACEMETHODIMP UiaTextRangeBase::GetBoundingRectangles(_Outptr_result_maybenull_

// startAnchor: the earliest til::point we will get a bounding rect for
auto startAnchor = GetEndpoint(TextPatternRangeEndpoint_Start);
if (bufferSize.CompareInBounds(startAnchor, viewportOrigin, true) < 0)
if (startAnchor < viewportOrigin)
{
// earliest we can be is the origin
startAnchor = viewportOrigin;
}

// endAnchor: the latest til::point we will get a bounding rect for
auto endAnchor = GetEndpoint(TextPatternRangeEndpoint_End);
if (bufferSize.CompareInBounds(endAnchor, viewportEnd, true) > 0)
if (endAnchor > viewportEnd)
{
// latest we can be is the viewport end
endAnchor = viewportEnd;
Expand All @@ -889,7 +889,7 @@ IFACEMETHODIMP UiaTextRangeBase::GetBoundingRectangles(_Outptr_result_maybenull_
// _end is exclusive, let's be inclusive so we don't have to think about it anymore for bounding rects
bufferSize.DecrementInBounds(endAnchor, true);

if (IsDegenerate() || bufferSize.CompareInBounds(_start, viewportEnd, true) > 0 || bufferSize.CompareInBounds(_end, viewportOrigin, true) < 0)
if (IsDegenerate() || _start > viewportEnd || _end < viewportOrigin)
{
// An empty array is returned for a degenerate (empty) text range.
// reference: https://docs.microsoft.com/en-us/windows/win32/api/uiautomationclient/nf-uiautomationclient-iuiautomationtextrange-getboundingrectangles
Expand Down Expand Up @@ -994,10 +994,7 @@ std::wstring UiaTextRangeBase::_getTextValue(til::CoordType maxLength) const
// TODO GH#5406: create a different UIA parent object for each TextBuffer
// nvaccess/nvda#11428: Ensure our endpoints are in bounds
// otherwise, we'll FailFast catastrophically
if (!bufferSize.IsInBounds(_start, true) || !bufferSize.IsInBounds(_end, true))
{
THROW_HR(E_FAIL);
}
THROW_HR_IF(E_FAIL, !bufferSize.IsInBounds(_start) || !bufferSize.IsInBounds(_end));

// convert _end to be inclusive
auto inclusiveEnd = _end;
Expand Down Expand Up @@ -1045,11 +1042,11 @@ try
constexpr auto endpoint = TextPatternRangeEndpoint::TextPatternRangeEndpoint_Start;
const auto bufferSize{ _pData->GetTextBuffer().GetSize() };
const auto documentEnd = _getDocumentEnd();
if (bufferSize.CompareInBounds(_start, documentEnd, true) > 0)
if (_start > documentEnd)
{
_start = documentEnd;
}
if (bufferSize.CompareInBounds(_end, documentEnd, true) > 0)
if (_end > documentEnd)
{
_end = documentEnd;
}
Expand Down Expand Up @@ -1119,11 +1116,11 @@ IFACEMETHODIMP UiaTextRangeBase::MoveEndpointByUnit(_In_ TextPatternRangeEndpoin
}
CATCH_LOG();

if (bufferSize.CompareInBounds(_start, documentEnd, true) > 0)
if (_start > documentEnd)
{
_start = documentEnd;
}
if (bufferSize.CompareInBounds(_end, documentEnd, true) > 0)
if (_end > documentEnd)
{
_end = documentEnd;
}
Expand Down Expand Up @@ -1173,7 +1170,7 @@ try
const auto bufferSize = _pData->GetTextBuffer().GetSize();
const auto mine = GetEndpoint(endpoint);
const auto other = range->GetEndpoint(targetEndpoint);
RETURN_HR_IF(E_FAIL, !bufferSize.IsInBounds(mine, true) || !bufferSize.IsInBounds(other, true));
RETURN_HR_IF(E_FAIL, !bufferSize.IsInBounds(mine) || !bufferSize.IsInBounds(other));

SetEndpoint(endpoint, range->GetEndpoint(targetEndpoint));

Expand All @@ -1199,10 +1196,7 @@ try
else
{
const auto bufferSize = _pData->GetTextBuffer().GetSize();
if (!bufferSize.IsInBounds(_start, true) || !bufferSize.IsInBounds(_end, true))
{
return E_FAIL;
}
RETURN_HR_IF(E_FAIL, !bufferSize.IsInBounds(_start) || !bufferSize.IsInBounds(_end));
auto inclusiveEnd = _end;
bufferSize.DecrementInBounds(inclusiveEnd);
_pData->SelectNewRegion(_start, inclusiveEnd);
Expand Down Expand Up @@ -1516,7 +1510,7 @@ void UiaTextRangeBase::_moveEndpointByUnitWord(_In_ const int moveCount,
{
case MovementDirection::Forward:
{
if (bufferSize.CompareInBounds(nextPos, documentEnd, true) >= 0)
if (nextPos >= documentEnd)
{
success = false;
}
Expand Down Expand Up @@ -1737,7 +1731,7 @@ void UiaTextRangeBase::_moveEndpointByUnitDocument(_In_ const int moveCount,
}
CATCH_LOG();

if (preventBoundary || bufferSize.CompareInBounds(target, documentEnd, true) >= 0)
if (preventBoundary || target >= documentEnd)
{
return;
}
Expand Down
4 changes: 2 additions & 2 deletions src/types/inc/viewport.hpp
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Expand Up @@ -55,7 +55,7 @@ namespace Microsoft::Console::Types
til::size Dimensions() const noexcept;

bool IsInBounds(const Viewport& other) const noexcept;
bool IsInBounds(const til::point pos, bool allowEndExclusive = false) const noexcept;
bool IsInBounds(const til::point pos) const noexcept;

void Clamp(til::point& pos) const;
Viewport Clamp(const Viewport& other) const noexcept;
Expand All @@ -65,7 +65,7 @@ namespace Microsoft::Console::Types
bool IncrementInBoundsCircular(til::point& pos) const noexcept;
bool DecrementInBounds(til::point& pos, bool allowEndExclusive = false) const noexcept;
bool DecrementInBoundsCircular(til::point& pos) const noexcept;
int CompareInBounds(const til::point first, const til::point second, bool allowEndExclusive = false) const noexcept;
int CompareInBounds(const til::point first, const til::point second) const noexcept;

enum class XWalk
{
Expand Down
15 changes: 5 additions & 10 deletions src/types/viewport.cpp
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Expand Up @@ -208,13 +208,8 @@ bool Viewport::IsInBounds(const Viewport& other) const noexcept
// includes the last til::point in a given viewport.
// Return Value:
// - True if it lies inside the viewport. False otherwise.
bool Viewport::IsInBounds(const til::point pos, bool allowEndExclusive) const noexcept
bool Viewport::IsInBounds(const til::point pos) const noexcept
{
if (allowEndExclusive && pos == EndExclusive())
{
return true;
}

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return pos.X >= Left() && pos.X < RightExclusive() &&
pos.Y >= Top() && pos.Y < BottomExclusive();
}
Expand Down Expand Up @@ -365,11 +360,11 @@ bool Viewport::DecrementInBoundsCircular(til::point& pos) const noexcept
// - This is so you can do s_CompareCoords(first, second) <= 0 for "first is left or the same as second".
// (the < looks like a left arrow :D)
// - The magnitude of the result is the distance between the two coordinates when typing characters into the buffer (left to right, top to bottom)
int Viewport::CompareInBounds(const til::point first, const til::point second, bool allowEndExclusive) const noexcept
int Viewport::CompareInBounds(const til::point first, const til::point second) const noexcept
{
// Assert that our coordinates are within the expected boundaries
FAIL_FAST_IF(!IsInBounds(first, allowEndExclusive));
FAIL_FAST_IF(!IsInBounds(second, allowEndExclusive));
FAIL_FAST_IF(!IsInBounds(first));
FAIL_FAST_IF(!IsInBounds(second));
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// First set the distance vertically
// If first is on row 4 and second is on row 6, first will be -2 rows behind second * an 80 character row would be -160.
Expand Down Expand Up @@ -432,7 +427,7 @@ bool Viewport::WalkInBounds(til::point& pos, const WalkDir dir, bool allowEndExc
bool Viewport::WalkInBoundsCircular(til::point& pos, const WalkDir dir, bool allowEndExclusive) const noexcept
{
// Assert that the position given fits inside this viewport.
FAIL_FAST_IF(!IsInBounds(pos, allowEndExclusive));
assert((allowEndExclusive && pos == EndExclusive()) || IsInBounds(pos));

if (dir.x == XWalk::LeftToRight)
{
Expand Down