For implementing full move semantics when passing parameters by value.
Based on SWIGTYPE && and std::unique_ptr typemaps which implement move
semantics.
Added for all languages, but untested for: Go, Ocaml, R, Scilab (and
unlikely to be fully functional for same reasons as for std::unique_ptr
support).
Issue #999
Recent change to SwigValueWrapper required the <utility> header.
Included headers should be after the include of the language
specific header files (which go into the earlier runtime section).
Testcase required -Winit-list-lifetime warning suppression change
for Perl which somehow lost the warning suppression when put
into the %begin section.
The directorin typemaps in the director methods now use std::move on the
input parameter when copying the object from the stack to the heap prior
to the callback into the target language, thereby taking advantage of
move semantics if available.
Since the recent inclusion of <utility>, the warning suppressions in
swiglabels.swg stopped working as they appear after this include file.
In particular, The _MSC_VER warnings were not working.
Enhance SWIGTYPE "out" typemaps to use std::move when copying
objects, thereby making use of move semantics when wrapping a function returning
by value if the returned type supports move semantics.
Wrapping functions that return move only types 'by value' now work out the box
without having to provide custom typemaps.
The implementation removed all casts in the "out" typemaps to allow the compiler to
appropriately choose calling a move constructor, where possible, otherwise a copy
constructor. The implementation alsoand required modifying SwigValueWrapper to
change a cast operator from:
SwigValueWrapper::operator T&() const;
to
#if __cplusplus >=201103L
SwigValueWrapper::operator T&&() const;
#else
SwigValueWrapper::operator T&() const;
#endif
This is not backwards compatible for C++11 and later when using the valuewrapper feature
if a cast is explicitly being made in user supplied "out" typemaps. Suggested change
in custom "out" typemaps for C++11 and later code:
1. Try remove the cast altogether to let the compiler use an appropriate implicit cast.
2. Change the cast, for example, from static_cast<X &> to static_cast<X &&>, using the
__cplusplus macro if all versions of C++ need to be supported.
Issue #999Closes#1044
More about the commit:
Added some missing "varout" typemaps for Ocaml which was falling back to
use "out" typemaps as they were missing.
Ruby std::set fix for SwigValueWrapper C++11 changes.
Tests that the `%contract` code (viz., each target language's
implementation of SWIG_contract_assert) compiles in C as expected. Update
the note in the source code since `%contract` is in the official
documentation.
Use std::move on this pointer as the default approach to supporting
rvalue ref-qualifiers if a user really wants to wrap.
std::move requires <memory> headers so add swigfragments.swg for all
languages to use common fragments. Just header file fragments for now.
These work much like any of the other STL containers except Python slicing
is somewhat limited because the array is a fixed size. Only slices of
the full size are supported.
* nested:
Deprecation of the 'nestedworkaround' feature
Ensure -c++out is not used with -c++
Add missing header to new source file
Nested C class setters restored in c++out mode for Octave
Classprefix fixed after private nested classes some comments and spaces added
Fix template partial specialization detection
Minor tweaks in Swig_feature_set
Swig_offset_string moved to misc.c
nested private classes are discarded while parsing nested relate functions are moved to nested.cxx and renamed accordingly
out-of-scope template definitions fixed nested_private test disabled again
fixed out-of-scope nested class definitions, added a test enabled nested C structs assignment (still disabled for Octave), added Java runtime test fixed nested_private test case for Java & C#
Testcase of private nested class usage causing segfault
C nested struct passed by value example
Add in Travis testing for nested branch
Add C++ nested class example
Minor code improvements
Cosmetics/code beautification of nested class support
Nested classes support
Closes#89
Squash merge branch 'master' of https://github.com/wkalinin/swig into wkalinin-nested
By Vladimir Kalinin
* 'master' of https://github.com/wkalinin/swig:
CPlusPlusOut mode for Octave
nested class illustration
fixed "Abstract" flag for nested classes added an example enabled anonymous nested structs runtime test
porting
warnings disabled
porting fixes
java runtime tests ported
nested class closing bracket offset fixed
removed double nested template (not supported by %template parsing)
template_nested test extended
parent field made public
property access fixed
replaced tabs with spaces
warning W-reorder
deprecated warnings removed, derived_nested runtime test added
optimized string indenting
Nested classes indenting
nested classes docs
fixed the order in which flattened inner classes are added after the outer
Private nested classes were getting into the type table.
Java getProxyName() fix for nested classes fixes the case when nested classes is forward declared
Fix for a case when a nested class inherits from the same base as the outer. (Base class constructor declaration is found first in this case)
merge fix
nested C struct first immediate declaration incorrectly renamed sample fixed
tests updated to reflect nested classes support
Java nested classes support (1)
flattening should remove the link to the outer class
access mode correctly set/restored for nested classes
nested templates should be skipped while flattening (template nodes themselves, not expanded versions) also non-public nested classes should be ignored
If nested classes are not supported, default behaviour is flattening, not ignoring flag "nested" is preserved, so, the nested classes can be ignored by user
nested workaround test updated
template instantiated within a class is marked as nested for ignoring purposes
%ignore not applied to the nested classed, because "nested" flag is set too late
typedef name takes precedence over the real name (reason?)
unnamed structs should be processed for all the languages
nested C struct instances are wrapped as "immutable"
tree building
typedef declaration for unnamed C structures fixed
nested classes "flattening"
fixed %ignoring nested classes
renamed "nested" attribute to "nested:outer" added "nested" flag, to be used with $ignore (it is not removed while flattening) added nestedClassesSupported() function to the Language interface
renamed "nested" attribute to "nested:outer" added "nested" flag, to be used with $ignore (it is not removed while flattening) added nestedClassesSupported() function to the Language interface
tree iteration fix
dirclassname variable names unified memory issue fixed
merge error
ignore unnamed structs for C++
unnamed nested C structs naming & unnesting
class added to classes hash under typedef name
private nested classes skipped
test updated due to nested templates support
anonymous structs with inheritance fixed nested_class test to allow anonymous structs w/o declarator
tests updated: nested workaround removed from namespace_class.i propagated nested template declaration to the C++ file
injected members scope
nested tempplates fixes, nested structures in "C" mode parsing added utility function "appendSibling" (like "appendChild")
nested unnamed structures parsing fixes, access mode restored on nested class end, tdname is properly patched with outer class name prefix
memory management fixes
nested templates (1)
Nested unnamed structs
Nested class support (1)
Nested class support (1)
It is still a bit rough around some edges, particularly with regard to multi-threading and operator overloading, and there are some documentation bits missing, but it should be fine for basic use.
The test-suite should build and run fine with the current versions of DMD, LDC and Tango (at least) on Linux x86_64 and Mac OS X 10.6.
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12299 626c5289-ae23-0410-ae9c-e8d60b6d4f22
- Instead of using the swig_up flag in each director method (Python, Ruby, Ocaml) to indicate
whether the explicit C++ call to the appropriate base class method or a normal
polymorphic C++ call should be made, the new approach makes one of these calls
directly from the wrapper method.
- Java/C# recursive director method calls fixed (no need for explicitcall feature to solve this now)
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@9272 626c5289-ae23-0410-ae9c-e8d60b6d4f22
