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Add _a literal for named arguments
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@ -55,4 +55,7 @@ void init_ex11(py::module &m) {
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m.def("args_function", &args_function);
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m.def("args_kwargs_function", &args_kwargs_function);
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using namespace py::literals;
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m.def("kw_func_udl", &kw_func, "x"_a, "y"_a=300);
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}
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@ -6,12 +6,13 @@ import pydoc
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sys.path.append('.')
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from example import kw_func, kw_func2, kw_func3, kw_func4, call_kw_func
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from example import args_function, args_kwargs_function
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from example import args_function, args_kwargs_function, kw_func_udl
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print(pydoc.render_doc(kw_func, "Help on %s"))
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print(pydoc.render_doc(kw_func2, "Help on %s"))
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print(pydoc.render_doc(kw_func3, "Help on %s"))
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print(pydoc.render_doc(kw_func4, "Help on %s"))
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print(pydoc.render_doc(kw_func_udl, "Help on %s"))
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kw_func(5, 10)
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kw_func(5, y=10)
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@ -39,3 +40,5 @@ call_kw_func(kw_func2)
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args_function('arg1_value', 'arg2_value', 3)
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args_kwargs_function('arg1_value', 'arg2_value', arg3='arg3_value', arg4=4)
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kw_func_udl(x=5, y=10)
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@ -18,6 +18,11 @@ Help on built-in function kw_func4 in module example
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kkww__ffuunncc44(...)
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kw_func4(myList : list<int> = [13L, 17L]) -> NoneType
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Help on built-in function kw_func_udl in module example
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kkww__ffuunncc__uuddll(...)
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kw_func_udl(x : int, y : int = 300L) -> NoneType
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kw_func(x=5, y=10)
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kw_func(x=5, y=10)
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kw_func(x=5, y=10)
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@ -40,3 +45,5 @@ got argument: arg1_value
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got argument: arg2_value
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got keyword argument: arg3 -> arg3_value
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got keyword argument: arg4 -> 4
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kw_func(x=5, y=10)
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@ -18,23 +18,29 @@ template <typename T> struct arg_t;
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/// Annotation for keyword arguments
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struct arg {
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arg(const char *name) : name(name) { }
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template <typename T> arg_t<T> operator=(const T &value);
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template <typename T, size_t N> arg_t<const T *> operator=(T const (&value)[N]);
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constexpr arg(const char *name) : name(name) { }
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template <typename T>
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constexpr arg_t<T> operator=(const T &value) const { return {name, value}; }
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template <typename T, size_t N>
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constexpr arg_t<const T *> operator=(T const (&value)[N]) const {
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return operator=((const T *) value);
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};
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const char *name;
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};
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/// Annotation for keyword arguments with default values
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template <typename T> struct arg_t : public arg {
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arg_t(const char *name, const T &value, const char *descr = nullptr)
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constexpr arg_t(const char *name, const T &value, const char *descr = nullptr)
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: arg(name), value(value), descr(descr) { }
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T value;
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const char *descr;
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};
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template <typename T> arg_t<T> arg::operator=(const T &value) { return arg_t<T>(name, value); }
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template <typename T, size_t N> arg_t<const T *> arg::operator=(T const (&value)[N]) {
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return operator=((const T *) value);
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inline namespace literals {
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/// String literal version of arg
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constexpr arg operator"" _a(const char *name, size_t) { return {name}; }
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}
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/// Annotation for methods
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