Commit Graph

3029 Commits

Author SHA1 Message Date
Jason Rhinelander
12ce07a2c2 Remove useless convert argument from argument_loader
Since the argument loader split off from the tuple converter, it is
never called with a `convert` argument set to anything but true.  This
removes the argument entirely, passing a literal `true` from within
`argument_loader` to the individual value casters.
2016-12-14 20:40:49 +01:00
Jason Rhinelander
23e59c8633 Work around gcc 7 ICE
Current g++ 7 snapshot fails to compile pybind under -std=c++17 with:

```
$ make
[  3%] Building CXX object tests/CMakeFiles/pybind11_tests.dir/pybind11_tests.cpp.o
In file included from /home/jagerman/src/pybind11/tests/pybind11_tests.h:2:0,
                 from /home/jagerman/src/pybind11/tests/pybind11_tests.cpp:10:
/home/jagerman/src/pybind11/include/pybind11/pybind11.h: In instantiation of 'pybind11::cpp_function::initialize(Func&&, Return (*)(Args ...), const Extra& ...)::<lambda(pybind11::detail::function_record*, pybind11::handle, pybind11::handle, pybind11::handle)> [with Func = pybind11::cpp_function::cpp_function(Return (Class::*)(Arg ...), const Extra& ...) [with Return = int; Class = ConstructorStats; Arg = {}; Extra = {pybind11::name, pybind11::is_method, pybind11::sibling}]::<lambda(ConstructorStats*)>; Return = int; Args = {ConstructorStats*}; Extra = {pybind11::name, pybind11::is_method, pybind11::sibling}]':
/home/jagerman/src/pybind11/include/pybind11/pybind11.h:120:22:   required from 'struct pybind11::cpp_function::initialize(Func&&, Return (*)(Args ...), const Extra& ...) [with Func = pybind11::cpp_function::cpp_function(Return (Class::*)(Arg ...), const Extra& ...) [with Return = int; Class = ConstructorStats; Arg = {}; Extra = {pybind11::name, pybind11::is_method, pybind11::sibling}]::<lambda(ConstructorStats*)>; Return = int; Args = {ConstructorStats*}; Extra = {pybind11::name, pybind11::is_method, pybind11::sibling}]::<lambda(struct pybind11::detail::function_record*, class pybind11::handle, class pybind11::handle, class pybind11::handle)>'
/home/jagerman/src/pybind11/include/pybind11/pybind11.h:120:19:   required from 'void pybind11::cpp_function::initialize(Func&&, Return (*)(Args ...), const Extra& ...) [with Func = pybind11::cpp_function::cpp_function(Return (Class::*)(Arg ...), const Extra& ...) [with Return = int; Class = ConstructorStats; Arg = {}; Extra = {pybind11::name, pybind11::is_method, pybind11::sibling}]::<lambda(ConstructorStats*)>; Return = int; Args = {ConstructorStats*}; Extra = {pybind11::name, pybind11::is_method, pybind11::sibling}]'
/home/jagerman/src/pybind11/include/pybind11/pybind11.h:62:9:   required from 'pybind11::cpp_function::cpp_function(Return (Class::*)(Arg ...), const Extra& ...) [with Return = int; Class = ConstructorStats; Arg = {}; Extra = {pybind11::name, pybind11::is_method, pybind11::sibling}]'
/home/jagerman/src/pybind11/include/pybind11/pybind11.h:984:22:   required from 'pybind11::class_<type_, options>& pybind11::class_<type_, options>::def(const char*, Func&&, const Extra& ...) [with Func = int (ConstructorStats::*)(); Extra = {}; type_ = ConstructorStats; options = {}]'
/home/jagerman/src/pybind11/tests/pybind11_tests.cpp:24:47:   required from here
/home/jagerman/src/pybind11/include/pybind11/pybind11.h:147:9: sorry, unimplemented: unexpected AST of kind cleanup_stmt
         };
         ^
/home/jagerman/src/pybind11/include/pybind11/pybind11.h:147:9: internal compiler error: in potential_constant_expression_1, at cp/constexpr.c:5593
0x84c52a potential_constant_expression_1
	../../src/gcc/cp/constexpr.c:5593
0x84c3c0 potential_constant_expression_1
	../../src/gcc/cp/constexpr.c:5154
0x645511 finish_function(int)
	../../src/gcc/cp/decl.c:15527
0x66e80b instantiate_decl(tree_node*, int, bool)
	../../src/gcc/cp/pt.c:22558
0x6b61e2 instantiate_class_template_1
	../../src/gcc/cp/pt.c:10444
0x6b61e2 instantiate_class_template(tree_node*)
	../../src/gcc/cp/pt.c:10514
0x75a676 complete_type(tree_node*)
	../../src/gcc/cp/typeck.c:133
0x67d5a4 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool, bool)
	../../src/gcc/cp/pt.c:17516
0x67ca19 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool, bool)
	../../src/gcc/cp/pt.c:16655
0x672cce tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
	../../src/gcc/cp/pt.c:16140
0x6713dc tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
	../../src/gcc/cp/pt.c:15408
0x671915 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
	../../src/gcc/cp/pt.c:15394
0x671fc0 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
	../../src/gcc/cp/pt.c:15618
0x66e97f tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
	../../src/gcc/cp/pt.c:15379
0x66e97f instantiate_decl(tree_node*, int, bool)
	../../src/gcc/cp/pt.c:22536
0x6ba0cb instantiate_pending_templates(int)
	../../src/gcc/cp/pt.c:22653
0x6fd7f8 c_parse_final_cleanups()
	../../src/gcc/cp/decl2.c:4512
```

which looks a lot like https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77545.

The error seems to be that it gets confused about the `std::tuple<...>
value` in argument_loader: it is apparently not being initialized
properly.  Adding a default constructor with an explicit
default-initialization of `value` works around the problem.
2016-12-14 20:40:49 +01:00
Jason Rhinelander
cb63770978 Silence warnings from eigen under g++ 7
-Wint-in-bool-context triggers many warnings when compiling eigen code,
so disable it locally in eigen.h.
2016-12-14 20:40:49 +01:00
Lori A. Burns
f4b81b36bf reflow some docs paragraphs 2016-12-13 21:44:19 +01:00
Lori A. Burns
eb09af5e58 test installed pybind 2016-12-13 21:44:19 +01:00
Lori A. Burns
545b4dbc19 separate main CMakeLists.txt into Tools file also available upon installation 2016-12-13 21:44:19 +01:00
Lori A. Burns
5cafc99884 add CMake exported interface library and Config detection file 2016-12-13 21:44:19 +01:00
Lori A. Burns
44d7c59c55 make installation include and Config dirs configurable. set CMake project version from source. 2016-12-13 21:44:19 +01:00
Dean Moldovan
76e993a3f4 Set maximum line length for Python style checker (#552) 2016-12-13 00:59:28 +01:00
Wenzel Jakob
de2c6df200 check-style.sh: check for accidentally committed CRLF line endings 2016-12-13 00:24:08 +01:00
Jason Rhinelander
3f1ff3f4d1 Adds automatic casting on assignment of non-pyobject types (#551)
This adds automatic casting when assigning to python types like dict,
list, and attributes.  Instead of:

    dict["key"] = py::cast(val);
    m.attr("foo") = py::cast(true);
    list.append(py::cast(42));

you can now simply write:

    dict["key"] = val;
    m.attr("foo") = true;
    list.append(42);

Casts needing extra parameters (e.g. for a non-default rvp) still
require the py::cast() call. set::add() is also supported.

All usage is channeled through a SFINAE implementation which either just returns or casts. 

Combined non-converting handle and autocasting template methods via a
helper method that either just returns (handle) or casts (C++ type).
2016-12-12 23:42:52 +01:00
Wenzel Jakob
7c9ef7b553 stable documentation link in README.md 2016-12-12 23:35:25 +01:00
Wenzel Jakob
f8571ea1bc workaround for sphinx/docutils issue
https://github.com/sphinx-doc/sphinx/issues/3212
2016-12-11 18:51:46 +01:00
Wenzel Jakob
8fadade225 add valarray to documentation, update docutils on travis 2016-12-09 16:08:16 +01:00
Dean Moldovan
4e959c9af4 Add syntax sugar for resolving overloaded functions (#541) 2016-12-08 11:07:52 +01:00
Jason Rhinelander
ae185b7f19 std::valarray support for stl.h (#545)
* Added ternary support with descr args

Current the `_<bool>(a, b)` ternary support only works for `char[]` `a`
and `b`; this commit allows it to work for `descr` `a` and `b` arguments
as well.

* Add support for std::valarray to stl.h

This abstracts the std::array into a `array_caster` which can then be
used with either std::array or std::valarray, the main difference being
that std::valarray is resizable.  (It also lets the array_caster be
potentially used for other std::array-like interfaces, much as the
list_caster and map_caster currently provide).

* Small stl.h cleanups

- Remove redundant `type` typedefs
- make internal list_caster methods private
2016-12-08 00:43:29 +01:00
Dean Moldovan
ab90ec6ce9 Allow references to objects held by smart pointers (#533) 2016-12-07 02:36:44 +01:00
Dean Moldovan
8c85a85747 Use C++14 index_sequence when possible
Newer standard libraries use compiler intrinsics for std::index_sequence
which makes it ‘free’. This prevents hitting instantiation limits for
recursive templates (-ftemplate-depth).
2016-12-03 23:13:53 +01:00
Dean Moldovan
107285b353 Accept any sequence type as std::tuple or std::pair
This is more Pythonic and compliments the std::vector and std::list
casters which also accept sequences.
2016-12-03 23:13:53 +01:00
Dean Moldovan
719c1733dd Split up tuple caster and function argument loader
This is needed in order to allow the tuple caster to accept any sequence
while keeping the argument loader fast. There is also very little overlap
between the two classes which makes the separation clean. It’s also good
practice not to have completely new functionality in a specialization.
2016-12-03 23:13:53 +01:00
Alessandro Bacchini
9f13a30c6e Add missing C++ headers. Sort headers (#540) 2016-12-01 15:22:17 +01:00
esquires
67a68f1394 print traceback on failed import (#537) 2016-12-01 11:35:34 +01:00
Jason Rhinelander
14bfe622f8 Simplify cast_op return type (#532)
Using a complicated declval here was pointlessly complicated: we
already know the type, because that's what cast_op_type<T> is in the
first place.  (The declval also broke MSVC).
2016-11-25 19:23:01 +01:00
Jason Rhinelander
db86f7f285 Clean up cast operator invocations (#531)
This adds a `detail::cast_op<T>(caster)` function which handles the
rather verbose:

    caster.operator typename CasterType::template cast_op_type<T>()

which allows various places to use the shorter and clearer:

    cast_op<T>(caster)

instead of the full verbose cast operator invocation.
2016-11-25 18:35:00 +01:00
Jason Rhinelander
f200493716 Fixed stl casters to use the appropriate type_caster cast_op_type (#529)
stl casters were using a value cast to (Value) or (Key), but that isn't
always appropriate.  This changes it to use the appropriate value
converter's cast_op_type.
2016-11-25 13:06:18 +01:00
Wenzel Jakob
8d396fcff2 use pybind11::gil_scoped_acquire instead of PyGILState_* 2016-11-24 23:11:11 +01:00
Wenzel Jakob
099d6e9c48 Improved implementation of error_already_set::~error_already_set()
C++ exceptions are destructed in the context of the code that catches
them. At this point, the Python GIL may not be held, which could lead
to crashes with the previous implementation.

PyErr_Fetch and PyErr_Restore should always occur in pairs, which was
not the case for the previous implementation. To clear the exception,
the new approach uses PyErr_Restore && PyErr_Clear instead of simply
decreasing the reference counts of the exception objects.
2016-11-24 18:52:33 +01:00
Wenzel Jakob
e72d958a5d detail::error_string: handle call stacks that switch between C++ and Python multiple times 2016-11-24 12:48:31 +01:00
Wenzel Jakob
fbec17ce90 error_already_set: move-only semantics 2016-11-24 12:30:11 +01:00
Jason Rhinelander
2ac2d69418 Improve FindPythonLibsNew detection of python library directory (#523)
* Use LIBDIR and MULTIARCH on linux to find python library

* Remove apple-specific setting; the non-windows one should work fine on OS X

* Default LIBDIR/MULTIARCH to '' (to avoid getting None)

* Remove trailing whitespace from FindPythonLibsNew
2016-11-22 22:01:03 +01:00
Patrick Stewart
5271576828 Use correct itemsize when constructing a numpy dtype from a buffer_info 2016-11-22 22:01:03 +01:00
patstew
47681c183d Only mark unaligned types in buffers (#505)
Previously all types are marked unaligned in buffer format strings,
now we test for alignment before adding the '=' marker.
2016-11-22 12:17:07 +01:00
Sylvain Corlay
b14f065fa9 numpy.h replace macros with functions (#514) 2016-11-22 11:29:55 +01:00
Jason Rhinelander
7146d6299c Changed "Invoked with" output to use repr() instead of str() (#518)
This gives more informative output, often including the type (or at
least some hint about the type).
2016-11-22 11:28:40 +01:00
Wenzel Jakob
c4d8196607 include LICENSE, README.md, CONTRIBUTING.md in pip archive (fixes #512) 2016-11-20 23:21:19 +01:00
Dean Moldovan
bad1740213 Add checks to maintain a consistent Python code style and prevent bugs (#515)
A flake8 configuration is included in setup.cfg and the checks are
executed automatically on Travis:

* Ensures a consistent PEP8 code style
* Does basic linting to prevent possible bugs
2016-11-20 21:21:54 +01:00
Wenzel Jakob
df81546965 added forgotten initialization 2016-11-20 05:41:38 +01:00
Dean Moldovan
d079f41c26 Always use return_value_policy::move for rvalues (#510)
Fixes #509.

The move policy was already set for rvalues in PR #473, but this only
applied to directly cast user-defined types. The problem is that STL
containers cast values indirectly and the rvalue information is lost.
Therefore the move policy was not set correctly. This commit fixes it.

This also makes an additional adjustment to remove the `copy` policy
exception: rvalues now always use the `move` policy. This is also safe
for copy-only rvalues because the `move` policy has an internal fallback
to copying.
2016-11-20 05:31:02 +01:00
Wenzel Jakob
31fbf18ac7 replace redundant function_record->class_ field with 1 bit 2016-11-20 05:27:05 +01:00
Wenzel Jakob
7c2461eefd resolve issue involving inheritance + def_static + override (fixes #511) 2016-11-20 05:26:02 +01:00
Wenzel Jakob
405f6d1dfd make arithmetic operators of enum_ optional (#508)
Following commit 90d278, the object code generated by the python
bindings of nanogui (github.com/wjakob/nanogui) went up by a whopping
12%. It turns out that that project has quite a few enums where we don't
really care about arithmetic operators.

This commit thus partially reverts the effects of #503 by introducing
an additional attribute py::arithmetic() that must be specified if the
arithmetic operators are desired.
2016-11-17 23:24:47 +01:00
Lori A. Burns
99ddc9ac1a equals needed for test_copy_move_policies to build icpc 2016.3 (#507) 2016-11-17 11:01:11 +01:00
Dean Moldovan
4de271027d Improve consistency of array and array_t with regard to other pytypes
* `array_t(const object &)` now throws on error
* `array_t::ensure()` is intended for casters —- old constructor is
  deprecated
* `array` and `array_t` get default constructors (empty array)
* `array` gets a converting constructor
* `py::isinstance<array_T<T>>()` checks the type (but not flags)

There is only one special thing which must remain: `array_t` gets
its own `type_caster` specialization which uses `ensure` instead
of a simple check.
2016-11-17 08:55:42 +01:00
Dean Moldovan
c7ac16bb2e Add py::reinterpret_borrow<T>()/steal<T>() for low-level unchecked casts
The pytype converting constructors are convenient and safe for user
code, but for library internals the additional type checks and possible
conversions are sometimes not desired. `reinterpret_borrow<T>()` and
`reinterpret_steal<T>()` serve as the low-level unsafe counterparts
of `cast<T>()`.

This deprecates the `object(handle, bool)` constructor.

Renamed `borrowed` parameter to `is_borrowed` to avoid shadowing
warnings on MSVC.
2016-11-17 08:55:42 +01:00
Dean Moldovan
e18bc02fc9 Add default and converting constructors for all concrete Python types
* Deprecate the `py::object::str()` member function since `py::str(obj)`
  is now equivalent and preferred

* Make `py::repr()` a free function

* Make sure obj.cast<T>() works as expected when T is a Python type

`obj.cast<T>()` should be the same as `T(obj)`, i.e. it should convert
the given object to a different Python type. However, `obj.cast<T>()`
usually calls `type_caster::load()` which only checks the type without
doing any actual conversion. That causes a very unexpected `cast_error`.
This commit makes it so that `obj.cast<T>()` and `T(obj)` are the same
when T is a Python type.

* Simplify pytypes converting constructor implementation

It's not necessary to maintain a full set of converting constructors
and assignment operators + const& and &&. A single converting const&
constructor will work and there is no impact on binary size. On the
other hand, the conversion functions can be significantly simplified.
2016-11-17 08:55:42 +01:00
Dean Moldovan
b4498ef44d Add py::isinstance<T>(obj) for generalized Python type checking
Allows checking the Python types before creating an object instead of
after. For example:
```c++
auto l = list(ptr, true);
if (l.check())
   // ...
```
The above is replaced with:
```c++
if (isinstance<list>(ptr)) {
    auto l = reinterpret_borrow(ptr);
    // ...
}
```

This deprecates `py::object::check()`. `py::isinstance()` covers the
same use case, but it can also check for user-defined types:
```c++
class Pet { ... };
py::class_<Pet>(...);

m.def("is_pet", [](py::object obj) {
    return py::isinstance<Pet>(obj); // works as expected
});
```
2016-11-17 08:55:42 +01:00
Wenzel Jakob
281ccc692c exception constructor consistency improvements (fixes #492) 2016-11-16 17:59:56 +01:00
Sylvain Corlay
5027c4f95b Switch NumPy variadic indexing to per-value arguments (#500)
* Also added unsafe version without checks
2016-11-16 17:53:37 +01:00
Wenzel Jakob
2fb5f1d0c3 added message about recursion limits 2016-11-16 17:37:10 +01:00
Pim Schellart
90d27805b9 Extended enum support (#503)
* Allow enums to be ordered
* Support binary operators
2016-11-16 17:28:11 +01:00