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Reimplement static properties by extending PyProperty_Type

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Instead of creating a new unique metaclass for each type, the builtin
`property` type is subclassed to support static properties. The new
setter/getters always pass types instead of instances in their `self`
argument. A metaclass is still required to support this behavior, but
it doesn't store any data anymore, so a new one doesn't need to be
created for each class. There is now only one common metaclass which
is shared by all pybind11 types.
This commit is contained in:
Dean Moldovan
2017-02-13 18:11:24 +01:00
committed by Wenzel Jakob
parent a3f4a02cf8
commit c91f8bd627
9 changed files with 207 additions and 51 deletions
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5
tests/test_methods_and_attributes.cpp
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@@ -214,7 +214,10 @@ test_initializer methods_and_attributes([](py::module &m) {
[](py::object) { return TestProperties::static_get(); })
.def_property_static("def_property_static",
[](py::object) { return TestProperties::static_get(); },
[](py::object, int v) { return TestProperties::static_set(v); });
[](py::object, int v) { TestProperties::static_set(v); })
.def_property_static("static_cls",
[](py::object cls) { return cls; },
[](py::object cls, py::function f) { f(cls); });
py::class_<SimpleValue>(m, "SimpleValue")
.def_readwrite("value", &SimpleValue::value);