build: clear 50 warnings - pessimizing moves and null checks that cannot fail (#15408)

* build: remove std::move that blocks copy elision

std::move wrapped around a temporary, or around a local being returned,
stops the compiler constructing it in place. Each edit is the fix clang
suggests, which is to delete the std::move call and keep its argument.

Three of the 39 sites save a move, the two return std::move(local) in
Print.cpp and TreeSupport.cpp:2749. The rest are equivalent either way
and match how the codebase already writes this elsewhere.

Clears 39 -Wpessimizing-move warnings.

* build: drop null checks on references and this

A reference cannot be bound to null and this cannot be null, so the
compiler folds these conditions to true and drops the guard. Seven are
if (&bitmap && bitmap.IsOk()), where IsOk() already does the work; two
test this directly. The guarded code runs either way, so removing the
dead operand changes nothing.

Clears 11 -Wundefined-bool-conversion warnings.
This commit is contained in:
Kris Austin
2026-08-28 08:05:59 -03:00
committed by GitHub
parent cc390f11ee
commit db29f570bd
20 changed files with 59 additions and 61 deletions
+8 -8
View File
@@ -13,8 +13,8 @@ Slic3r::Polylines Paths64_to_polylines(const Clipper2Lib::Paths64& in)
Slic3r::Points points;
points.reserve(path64.size());
for (const Clipper2Lib::Point64& point64 : path64)
points.emplace_back(std::move(Slic3r::Point(point64.x, point64.y)));
out.emplace_back(std::move(Slic3r::Polyline(points)));
points.emplace_back(Slic3r::Point(point64.x, point64.y));
out.emplace_back(Slic3r::Polyline(points));
}
return out;
}
@@ -29,7 +29,7 @@ Clipper2Lib::Paths64 Slic3rPoints_to_Paths64(const Container& in)
Clipper2Lib::Path64 path;
path.reserve(item.size());
for (const Slic3r::Point& point : item.points)
path.emplace_back(std::move(Clipper2Lib::Point64(point.x(), point.y())));
path.emplace_back(Clipper2Lib::Point64(point.x(), point.y()));
out.emplace_back(std::move(path));
}
return out;
@@ -44,7 +44,7 @@ Points Path64ToPoints(const Clipper2Lib::Path64& path64)
{
Points points;
points.reserve(path64.size());
for (const Clipper2Lib::Point64 &point64 : path64) points.emplace_back(std::move(Slic3r::Point(point64.x, point64.y)));
for (const Clipper2Lib::Point64 &point64 : path64) points.emplace_back(Slic3r::Point(point64.x, point64.y));
return points;
}
@@ -99,7 +99,7 @@ Clipper2Lib::Paths64 Slic3rPolygons_to_Paths64(const Polygons &in)
for (const Polygon &poly : in) {
Clipper2Lib::Path64 path;
path.reserve(poly.points.size());
for (const Slic3r::Point &point : poly.points) path.emplace_back(std::move(Clipper2Lib::Point64(point.x(), point.y())));
for (const Slic3r::Point &point : poly.points) path.emplace_back(Clipper2Lib::Point64(point.x(), point.y()));
out.emplace_back(std::move(path));
}
return out;
@@ -114,7 +114,7 @@ Clipper2Lib::Paths64 Slic3rExPolygons_to_Paths64(const ExPolygons& in)
const auto &poly = expolygon.contour_or_hole(i);
Clipper2Lib::Path64 path;
path.reserve(poly.points.size());
for (const Slic3r::Point &point : poly.points) path.emplace_back(std::move(Clipper2Lib::Point64(point.x(), point.y())));
for (const Slic3r::Point &point : poly.points) path.emplace_back(Clipper2Lib::Point64(point.x(), point.y()));
out.emplace_back(std::move(path));
}
}
@@ -134,8 +134,8 @@ Polylines _clipper2_pl_open(Clipper2Lib::ClipType clipType, const Slic3r::Polyli
Slic3r::Polylines out;
out.reserve(solution.size() + solution_open.size());
polylines_append(out, std::move(Paths64_to_polylines(solution)));
polylines_append(out, std::move(Paths64_to_polylines(solution_open)));
polylines_append(out, Paths64_to_polylines(solution));
polylines_append(out, Paths64_to_polylines(solution_open));
return out;
}