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pybind11
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Allow pybind11::arg to have 0, false, or "" as default values.

This commit is contained in:
Jerry Gamache 2016-06-15 12:48:15 -04:00
parent 663513cf23
commit c6e0cdfa54
4 changed files with 13 additions and 4 deletions
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1
example/example11.cpp
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@ -58,4 +58,5 @@ void init_ex11(py::module &m) {
using namespace py::literals;
m.def("kw_func_udl", &kw_func, "x"_a, "y"_a=300);
m.def("kw_func_udl_z", &kw_func, "x"_a, "y"_a=0);
}

4
example/example11.py
View File

@ -6,13 +6,14 @@ import pydoc
sys.path.append('.')
from example import kw_func, kw_func2, kw_func3, kw_func4, call_kw_func
from example import args_function, args_kwargs_function, kw_func_udl
from example import args_function, args_kwargs_function, kw_func_udl, kw_func_udl_z
print(pydoc.render_doc(kw_func, "Help on %s"))
print(pydoc.render_doc(kw_func2, "Help on %s"))
print(pydoc.render_doc(kw_func3, "Help on %s"))
print(pydoc.render_doc(kw_func4, "Help on %s"))
print(pydoc.render_doc(kw_func_udl, "Help on %s"))
print(pydoc.render_doc(kw_func_udl_z, "Help on %s"))
kw_func(5, 10)
kw_func(5, y=10)
@ -42,3 +43,4 @@ args_function('arg1_value', 'arg2_value', 3)
args_kwargs_function('arg1_value', 'arg2_value', arg3='arg3_value', arg4=4)
kw_func_udl(x=5, y=10)
kw_func_udl_z(x=5)

6
example/example11.ref
View File

@ -23,6 +23,11 @@ Help on built-in function kw_func_udl in module example
kkww__ffuunncc__uuddll(...)
kw_func_udl(x : int, y : int = 300L) -> NoneType
Help on built-in function kw_func_udl_z in module example
kkww__ffuunncc__uuddll__zz(...)
kw_func_udl_z(x : int, y : int = 0L) -> NoneType
kw_func(x=5, y=10)
kw_func(x=5, y=10)
kw_func(x=5, y=10)
@ -47,3 +52,4 @@ got keyword argument: arg3 -> arg3_value
got keyword argument: arg4 -> 4
kw_func(x=5, y=10)
kw_func(x=5, y=0)

6
include/pybind11/attr.h
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@ -18,14 +18,14 @@ template <typename T> struct arg_t;
/// Annotation for keyword arguments
struct arg {
constexpr arg(const char *name) : name(name) { }
constexpr explicit arg(const char *name) : name(name) { }
template <typename T>
constexpr arg_t<T> operator=(const T &value) const { return {name, value}; }
template <typename T, size_t N>
constexpr arg_t<const T *> operator=(T const (&value)[N]) const {
return operator=((const T *) value);
};
}
const char *name;
};
@ -40,7 +40,7 @@ template <typename T> struct arg_t : public arg {
inline namespace literals {
/// String literal version of arg
constexpr arg operator"" _a(const char *name, size_t) { return {name}; }
constexpr arg operator"" _a(const char *name, size_t) { return {arg(name)}; }
}
/// Annotation for methods