PropertyExpressionEngine is changed to derived from a new class
PropertyExpressionContainer, which is in turn derives from
PropertyXLinkContainer. This makes PropertyExpressionEngine a link type
property that is capable of external linking. It now uses the unified
link property APIs for dependency management and tracking of object
life time, re-labeling, etc.
ObjectIdentifier is modified to support sub-object reference, but is
not exposed to end-user, because expression syntax is kept mostly
unchanged, which will be submitted in future PR. There is, however,
one small change in expression syntax (ExpressionParser.y) to introduce
local property reference to avoid ambiguity mentioned in
FreeCAD/FreeCAD#1619
Modified Expression/ExpressionModifier interface to support various link
property API for link modification.
Found via `codespell -q 3 -I ../fc-word-whitelist.txt -S ./.git,*.po,*.ts,./ChangeLog.txt,./src/3rdParty,./src/Mod/Assembly/App/opendcm,./src/CXX,./src/zipios++,./src/Base/swig*,./src/Mod/Robot/App/kdl_cp,./src/Mod/Import/App/SCL,./src/WindowsInstaller`
====================================================
fixes#3973https://forum.freecadweb.org/viewtopic.php?p=316251#p316198
This commit disables an old "axis orientation correction mode", which tried to
solve a problem with orientation of the axis. It never worked fine and it should
have never been introduced, as everything it intends to do should be done by
setting the appropriate placement offset.
=============================================
fixes#3926
Points made of construction type are special non-constrainable points, such as (current) bspline knots.
This was not intended in Carbon Copy.
==============================================
In maximum verbose debug mode, information is given about the groups of Sketcher Constraints that the solver is considering for redundancy or conflict.
This is before the popularity contest selects the constraint shown in the solver messages.
The main reason for showing this is to enable to diagnose problems with sketches in which the constraint indicated as the redundant one appears not to
be the right one. Intended for power users with "iteration level" debug mode.
=================================
Copy constructor made private, as copies are handled via copy() and clone() methods which generate pointers, not objects.
Private copy constructor, used for copy(), made default implementation.
Destructor made default.
Copy and Clone made non-virtual, as the class does not have children.
Added override to persistance inherited virtual functions.
move operators explicitly disallowed to note that they are not intended in the current implementation.
Perfectly ok to have only private copy constructor for internal use
