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GeezerVison is showing github.com — Added call policies to def(init<...>) and added tests to see that the… · boostorg/python@acbb5be

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  • include/boost/python
    • class.hpp
    • init.hpp
  • test
    • defaults.cpp
    • defaults.py
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‎include/boost/python/class.hpp‎

Copy file name to clipboardExpand all lines: include/boost/python/class.hpp
+15-2Lines changed: 15 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -168,9 +168,22 @@ class class_ : public objects::class_base
168168
}
169169

170170
template <BOOST_PP_ENUM_PARAMS(BOOST_PYTHON_MAX_ARITY, class T)>
171-
self& def(init<BOOST_PP_ENUM_PARAMS(BOOST_PYTHON_MAX_ARITY, T)> const& i, char const* doc = 0)
171+
self& def(init<BOOST_PP_ENUM_PARAMS(BOOST_PYTHON_MAX_ARITY, T)> const& i)
172172
{
173-
define_init(*this, i, doc);
173+
define_init(*this, i, default_call_policies(), 0);
174+
return *this;
175+
}
176+
177+
template <class CallPolicyOrDoc, BOOST_PP_ENUM_PARAMS(BOOST_PYTHON_MAX_ARITY, class T)>
178+
self& def(
179+
init<BOOST_PP_ENUM_PARAMS(BOOST_PYTHON_MAX_ARITY, T)> const& i,
180+
CallPolicyOrDoc const& policy_or_doc,
181+
char const* doc = 0)
182+
{
183+
typedef detail::def_helper<CallPolicyOrDoc> helper;
184+
define_init(*this, i,
185+
helper::get_policy(policy_or_doc),
186+
helper::get_doc(policy_or_doc, doc));
174187
return *this;
175188
}
176189

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‎include/boost/python/init.hpp‎

Copy file name to clipboardExpand all lines: include/boost/python/init.hpp
+10-10Lines changed: 10 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -352,12 +352,12 @@ namespace detail {
352352
template <int N>
353353
struct define_class_init_helper {
354354

355-
template <class ClassT, class ArgsT>
356-
static void apply(ClassT& cl, ArgsT const& args, char const* doc)
355+
template <class ClassT, class CallPoliciesT, class ArgsT>
356+
static void apply(ClassT& cl, CallPoliciesT const& policies, ArgsT const& args, char const* doc)
357357
{
358-
cl.def_init(args, default_call_policies(), doc);
358+
cl.def_init(args, policies, doc);
359359
typename boost::mpl::pop_back<ArgsT>::sequence next;
360-
define_class_init_helper<N-1>::apply(cl, next, doc);
360+
define_class_init_helper<N-1>::apply(cl, policies, next, doc);
361361
}
362362
};
363363

@@ -374,10 +374,10 @@ namespace detail {
374374
template <>
375375
struct define_class_init_helper<0> {
376376

377-
template <class ClassT, class ArgsT>
378-
static void apply(ClassT& cl, ArgsT const& args, char const* doc)
377+
template <class ClassT, class CallPoliciesT, class ArgsT>
378+
static void apply(ClassT& cl, CallPoliciesT const& policies, ArgsT const& args, char const* doc)
379379
{
380-
cl.def_init(args, default_call_policies(), doc);
380+
cl.def_init(args, policies, doc);
381381
}
382382
};
383383
}
@@ -403,13 +403,13 @@ namespace detail {
403403
// __init__(int)
404404
//
405405
///////////////////////////////////////////////////////////////////////////////
406-
template <class ClassT, class InitT>
406+
template <class ClassT, class CallPoliciesT, class InitT>
407407
void
408-
define_init(ClassT& cl, InitT const& i, char const* doc)
408+
define_init(ClassT& cl, InitT const& i, CallPoliciesT const& policies, char const* doc)
409409
{
410410
enum { n_defaults_plus_1 = InitT::n_defaults + 1 };
411411
typedef typename InitT::sequence args_t;
412-
detail::define_class_init_helper<n_defaults_plus_1>::apply(cl, args_t(), doc);
412+
detail::define_class_init_helper<n_defaults_plus_1>::apply(cl, policies, args_t(), doc);
413413
}
414414

415415
}} // namespace boost::python
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‎test/defaults.cpp‎

Copy file name to clipboardExpand all lines: test/defaults.cpp
+33-8Lines changed: 33 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -10,6 +10,7 @@
1010
#include <boost/python/tuple.hpp>
1111
#include <boost/python/list.hpp>
1212
#include <boost/python/module.hpp>
13+
#include <boost/python/return_internal_reference.hpp>
1314

1415
#if defined(_AIX) && defined(__EDG_VERSION__) && __EDG_VERSION__ < 245
1516
# include <iostream> // works around a KCC intermediate code generation bug
@@ -69,6 +70,20 @@ BOOST_PYTHON_FUNCTION_OVERLOADS(foo_stubs, foo, 1, 4)
6970
// Overloaded member functions with default arguments
7071
//
7172
///////////////////////////////////////////////////////////////////////////////
73+
struct Y {
74+
75+
Y() {}
76+
77+
object
78+
get_state() const
79+
{
80+
return format % make_tuple(a, b, c, d);
81+
}
82+
83+
int a; char b; std::string c; double d;
84+
};
85+
86+
7287
struct X {
7388

7489
X() {}
@@ -83,11 +98,15 @@ struct X {
8398
return format % make_tuple(a, b, c, d);
8499
}
85100

86-
object
87-
bar2(int a = 0, char b = 'D', std::string c = "default", double d = 0.0) const
101+
Y const&
102+
bar2(int a = 0, char b = 'D', std::string c = "default", double d = 0.0)
88103
{
89-
// tests zero arg member function
90-
return format % make_tuple(a, b, c, d);
104+
// tests zero arg member function and return_internal_reference policy
105+
y.a = a;
106+
y.b = b;
107+
y.c = c;
108+
y.d = d;
109+
return y;
91110
}
92111

93112
object
@@ -114,19 +133,20 @@ struct X {
114133
return state;
115134
}
116135

136+
Y y;
117137
object state;
118138
};
119139

120140
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(X_bar_stubs, bar, 1, 4)
121-
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(X_bar2_stubs, bar2, 0, 4) // tests zero arg member function
141+
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(X_bar_stubs2, bar2, 0, 4)
122142
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(X_foo_2_stubs, foo, 1, 2)
123143
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(X_foo_3_stubs, foo, 2, 3)
124144

125145
///////////////////////////////////////////////////////////////////////////////
126146

127147
BOOST_PYTHON_MODULE_INIT(defaults_ext)
128148
{
129-
def("foo", foo, foo_stubs(), default_call_policies());
149+
def("foo", foo, foo_stubs());
130150
def("bar", (object(*)(int, char, std::string, double))0, bar_stubs());
131151

132152
// Show that this works with the old obsolete module version of def().
@@ -135,6 +155,10 @@ BOOST_PYTHON_MODULE_INIT(defaults_ext)
135155
.def("barfoo", (object(*)(int, char, std::string, double))0, bar_stubs())
136156
;
137157

158+
class_<Y>("Y", no_init)
159+
.def("get_state", &Y::get_state)
160+
;
161+
138162
class_<X>("X")
139163

140164
# if (!defined(BOOST_INTEL_CXX_VERSION) || BOOST_INTEL_CXX_VERSION > 600)
@@ -145,9 +169,10 @@ BOOST_PYTHON_MODULE_INIT(defaults_ext)
145169
.def_init(args<int, char, std::string>())
146170
.def_init(args<int, char, std::string, double>())
147171
# endif
148-
.def("get_state", &X::get_state)
172+
.def("get_state", &X::get_state)
149173
.def("bar", &X::bar, X_bar_stubs())
150-
.def("foo", (object(X::*)(std::string, bool) const)0, X_foo_2_stubs(), default_call_policies())
174+
.def("bar2", &X::bar2, X_bar_stubs2(), return_internal_reference<>())
175+
.def("foo", (object(X::*)(std::string, bool) const)0, X_foo_2_stubs())
151176
.def("foo", (object(X::*)(int, bool) const)0, X_foo_2_stubs())
152177
.def("foo", (object(X::*)(list, list, bool) const)0, X_foo_3_stubs())
153178
;
Collapse file

‎test/defaults.py‎

Copy file name to clipboardExpand all lines: test/defaults.py
+10-1Lines changed: 10 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -56,7 +56,16 @@
5656
>>> x = X(1, 'X', "Phoenix", 3.65)
5757
>>> x.get_state()
5858
'int(1); char(X); string(Phoenix); double(3.65); '
59-
59+
>>> x.bar2().get_state()
60+
'int(0); char(D); string(default); double(0.0); '
61+
>>> x.bar2(1).get_state()
62+
'int(1); char(D); string(default); double(0.0); '
63+
>>> x.bar2(1, 'K').get_state()
64+
'int(1); char(K); string(default); double(0.0); '
65+
>>> x.bar2(1, 'K', "Kim").get_state()
66+
'int(1); char(K); string(Kim); double(0.0); '
67+
>>> x.bar2(1, 'K', "Kim", 9.9).get_state()
68+
'int(1); char(K); string(Kim); double(9.9); '
6069
6170
"""
6271
def run(args = None):

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