improved handling of shared/smart pointers
Previously, pybind11 required classes using std::shared_ptr<> to derive
from std::enable_shared_from_this<> (or compilation failures would ensue).
Everything now also works for classes that don't do this, assuming that
some basic rules are followed (e.g. never passing "raw" pointers of
instances manged by shared pointers). The safer
std::enable_shared_from_this<> approach continues to be supported.
diff --git a/example/example8.ref b/example/example8.ref
index 26f42e3..641abd0 100644
--- a/example/example8.ref
+++ b/example/example8.ref
@@ -1,275 +1,243 @@
-MyObject[1] constructor
-Initialized ref from pointer 0x7ffdb2c16a50
-MyObject[2] constructor
-Initialized ref from pointer 0x7ffdb2c167a0
-Initialized ref from pointer 0x7ffdb2c167a0
-Destructing ref 0x7ffdb2c167a0
-MyObject[3] constructor
-Initialized ref from pointer 0x7ffdb2c17420
+MyObject1[1] constructor
+Initialized ref from pointer 0x1347ba0
+MyObject1[2] constructor
+Initialized ref from pointer 0x12b9270
+Initialized ref from ref 0x12b9270
+Destructing ref 0x12b9270
+MyObject1[3] constructor
+Initialized ref from pointer 0x12a2a90
+MyObject1[1]
+Created empty ref
+Assigning ref 0x1347ba0
+Initialized ref from ref 0x1347ba0
+MyObject1[1]
+Destructing ref 0x1347ba0
+Destructing ref 0x1347ba0
+Created empty ref
+Assigning ref 0x1347ba0
+MyObject1[1]
+Destructing ref 0x1347ba0
+Created empty ref
+Assigning ref 0x1347ba0
+MyObject1[1]
+Destructing ref 0x1347ba0
+MyObject1[2]
+Created empty ref
+Assigning ref 0x12b9270
+Initialized ref from ref 0x12b9270
+MyObject1[2]
+Destructing ref 0x12b9270
+Destructing ref 0x12b9270
+Created empty ref
+Assigning ref 0x12b9270
+MyObject1[2]
+Destructing ref 0x12b9270
+Created empty ref
+Assigning ref 0x12b9270
+MyObject1[2]
+Destructing ref 0x12b9270
+MyObject1[3]
+Created empty ref
+Assigning ref 0x12a2a90
+Initialized ref from ref 0x12a2a90
+MyObject1[3]
+Destructing ref 0x12a2a90
+Destructing ref 0x12a2a90
+Created empty ref
+Assigning ref 0x12a2a90
+MyObject1[3]
+Destructing ref 0x12a2a90
+Created empty ref
+Assigning ref 0x12a2a90
+MyObject1[3]
+Destructing ref 0x12a2a90
+Destructing ref 0x12b9270
+MyObject1[2] destructor
+Destructing ref 0x1347ba0
+MyObject1[1] destructor
+MyObject1[4] constructor
+Initialized ref from pointer 0x1347ba0
+MyObject1[5] constructor
+Initialized ref from pointer 0x1299190
+Initialized ref from ref 0x1299190
+Destructing ref 0x1299190
+MyObject1[6] constructor
+Initialized ref from pointer 0x133e2f0
+Destructing ref 0x12a2a90
+MyObject1[3] destructor
+MyObject1[4]
+Created empty ref
+Assigning ref 0x1347ba0
+Initialized ref from ref 0x1347ba0
+MyObject1[4]
+Destructing ref 0x1347ba0
+Destructing ref 0x1347ba0
+Created empty ref
+Assigning ref 0x1347ba0
+MyObject1[4]
+Destructing ref 0x1347ba0
+Created empty ref
+Assigning ref 0x1347ba0
+MyObject1[4]
+Destructing ref 0x1347ba0
+MyObject1[4]
+Created empty ref
+Assigning ref 0x1347ba0
+Initialized ref from ref 0x1347ba0
+MyObject1[4]
+Destructing ref 0x1347ba0
+Destructing ref 0x1347ba0
+Created empty ref
+Assigning ref 0x1347ba0
+MyObject1[4]
+Destructing ref 0x1347ba0
+Created empty ref
+Assigning ref 0x1347ba0
+MyObject1[4]
+Destructing ref 0x1347ba0
+MyObject1[5]
+Created empty ref
+Assigning ref 0x1299190
+Initialized ref from ref 0x1299190
+MyObject1[5]
+Destructing ref 0x1299190
+Destructing ref 0x1299190
+Created empty ref
+Assigning ref 0x1299190
+MyObject1[5]
+Destructing ref 0x1299190
+Created empty ref
+Assigning ref 0x1299190
+MyObject1[5]
+Destructing ref 0x1299190
+MyObject1[5]
+Created empty ref
+Assigning ref 0x1299190
+Initialized ref from ref 0x1299190
+MyObject1[5]
+Destructing ref 0x1299190
+Destructing ref 0x1299190
+Created empty ref
+Assigning ref 0x1299190
+MyObject1[5]
+Destructing ref 0x1299190
+Created empty ref
+Assigning ref 0x1299190
+MyObject1[5]
+Destructing ref 0x1299190
+MyObject1[6]
+Created empty ref
+Assigning ref 0x133e2f0
+Initialized ref from ref 0x133e2f0
+MyObject1[6]
+Destructing ref 0x133e2f0
+Destructing ref 0x133e2f0
+Created empty ref
+Assigning ref 0x133e2f0
+MyObject1[6]
+Destructing ref 0x133e2f0
+Created empty ref
+Assigning ref 0x133e2f0
+MyObject1[6]
+Destructing ref 0x133e2f0
+MyObject1[6]
+Created empty ref
+Assigning ref 0x133e2f0
+Initialized ref from ref 0x133e2f0
+MyObject1[6]
+Destructing ref 0x133e2f0
+Destructing ref 0x133e2f0
+Created empty ref
+Assigning ref 0x133e2f0
+MyObject1[6]
+Destructing ref 0x133e2f0
+Created empty ref
+Assigning ref 0x133e2f0
+MyObject1[6]
+Destructing ref 0x133e2f0
+MyObject1[7] constructor
+Initialized ref from pointer 0x133f3a0
+MyObject1[7]
+Destructing ref 0x133f3a0
+MyObject1[7] destructor
+Created empty ref
+MyObject1[7] constructor
+Initialized ref from pointer 0x12a2a90
+Assigning ref 0x12a2a90
+Initialized ref from ref 0x12a2a90
+MyObject1[7]
+Destructing ref 0x12a2a90
+Destructing ref 0x12a2a90
+Destructing ref 0x12a2a90
+MyObject1[7] destructor
+Created empty ref
+MyObject1[7] constructor
+Initialized ref from pointer 0x133f3a0
+Assigning ref 0x133f3a0
+MyObject1[7]
+Destructing ref 0x133f3a0
+Destructing ref 0x133f3a0
+MyObject1[7] destructor
+Created empty ref
+MyObject1[7] constructor
+Initialized ref from pointer 0x12a2a90
+Assigning ref 0x12a2a90
+MyObject1[7]
+Destructing ref 0x12a2a90
+Destructing ref 0x12a2a90
+MyObject1[7] destructor
+Destructing ref 0x133e2f0
+MyObject1[6] destructor
+Destructing ref 0x1299190
+MyObject1[5] destructor
+Destructing ref 0x1347ba0
+MyObject1[4] destructor
+MyObject2[8] constructor
+MyObject2[6] constructor
+MyObject2[7] constructor
+MyObject2[8]
+MyObject2[8]
+MyObject2[8]
+MyObject2[8]
+MyObject2[6]
+MyObject2[6]
+MyObject2[6]
+MyObject2[6]
+MyObject2[7]
+MyObject2[7]
+MyObject2[7]
+MyObject2[7]
+MyObject2[6] destructor
+MyObject2[8] destructor
+MyObject3[9] constructor
+MyObject3[8] constructor
+MyObject3[9] constructor
+MyObject2[7] destructor
+MyObject3[9]
+MyObject3[9]
+MyObject3[9]
+MyObject3[9]
+MyObject3[8]
+MyObject3[8]
+MyObject3[8]
+MyObject3[8]
+MyObject3[9]
+MyObject3[9]
+MyObject3[9]
+MyObject3[9]
+MyObject3[8] destructor
+MyObject3[9] destructor
Reference count = 1
-MyObject[1]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c16a50
-MyObject[1]
-Destructing ref 0x7ffdb2c16a50
-Destructing ref 0x7ffdb2c16a50
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-MyObject[1]
-Destructing ref 0x7ffdb2c16a50
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-MyObject[1]
-Destructing ref 0x7ffdb2c16a50
Reference count = 1
-MyObject[2]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c167a0
-MyObject[2]
-Destructing ref 0x7ffdb2c167a0
-Destructing ref 0x7ffdb2c167a0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-MyObject[2]
-Destructing ref 0x7ffdb2c167a0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-MyObject[2]
-Destructing ref 0x7ffdb2c167a0
Reference count = 1
-MyObject[3]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c17420
-Move-assigning ref 0x7ffdb2c17420
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c17420
-MyObject[3]
-Destructing ref 0x7ffdb2c17420
-Destructing ref 0x7ffdb2c17420
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c17420
-Move-assigning ref 0x7ffdb2c17420
-Destructing ref 0x0
-MyObject[3]
-Destructing ref 0x7ffdb2c17420
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c17420
-Move-assigning ref 0x7ffdb2c17420
-Destructing ref 0x0
-MyObject[3]
-Destructing ref 0x7ffdb2c17420
-Destructing ref 0x7ffdb2c167a0
-MyObject[2] destructor
-Destructing ref 0x7ffdb2c16a50
-MyObject[1] destructor
-MyObject[4] constructor
-Initialized ref from pointer 0x7ffdb2c16a50
-MyObject[5] constructor
-Initialized ref from pointer 0x7ffdb2c167a0
-Initialized ref from pointer 0x7ffdb2c167a0
-Destructing ref 0x7ffdb2c167a0
-MyObject[6] constructor
-Initialized ref from pointer 0x7ffdb2c161d0
-Destructing ref 0x7ffdb2c17420
-MyObject[3] destructor
-<example.MyObject object at 0x10cf67600>
-MyObject[4]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c16a50
-MyObject[4]
-Destructing ref 0x7ffdb2c16a50
-Destructing ref 0x7ffdb2c16a50
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-MyObject[4]
-Destructing ref 0x7ffdb2c16a50
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-MyObject[4]
-Destructing ref 0x7ffdb2c16a50
-MyObject[4]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c16a50
-MyObject[4]
-Destructing ref 0x7ffdb2c16a50
-Destructing ref 0x7ffdb2c16a50
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-MyObject[4]
-Destructing ref 0x7ffdb2c16a50
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c16a50
-Move-assigning ref 0x7ffdb2c16a50
-Destructing ref 0x0
-MyObject[4]
-Destructing ref 0x7ffdb2c16a50
-<example.MyObject object at 0x10cf7d210>
-MyObject[5]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c167a0
-MyObject[5]
-Destructing ref 0x7ffdb2c167a0
-Destructing ref 0x7ffdb2c167a0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-MyObject[5]
-Destructing ref 0x7ffdb2c167a0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-MyObject[5]
-Destructing ref 0x7ffdb2c167a0
-MyObject[5]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c167a0
-MyObject[5]
-Destructing ref 0x7ffdb2c167a0
-Destructing ref 0x7ffdb2c167a0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-MyObject[5]
-Destructing ref 0x7ffdb2c167a0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c167a0
-Move-assigning ref 0x7ffdb2c167a0
-Destructing ref 0x0
-MyObject[5]
-Destructing ref 0x7ffdb2c167a0
-<example.MyObject object at 0x10cf7d270>
-MyObject[6]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c161d0
-Move-assigning ref 0x7ffdb2c161d0
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c161d0
-MyObject[6]
-Destructing ref 0x7ffdb2c161d0
-Destructing ref 0x7ffdb2c161d0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c161d0
-Move-assigning ref 0x7ffdb2c161d0
-Destructing ref 0x0
-MyObject[6]
-Destructing ref 0x7ffdb2c161d0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c161d0
-Move-assigning ref 0x7ffdb2c161d0
-Destructing ref 0x0
-MyObject[6]
-Destructing ref 0x7ffdb2c161d0
-MyObject[6]
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c161d0
-Move-assigning ref 0x7ffdb2c161d0
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c161d0
-MyObject[6]
-Destructing ref 0x7ffdb2c161d0
-Destructing ref 0x7ffdb2c161d0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c161d0
-Move-assigning ref 0x7ffdb2c161d0
-Destructing ref 0x0
-MyObject[6]
-Destructing ref 0x7ffdb2c161d0
-Created empty ref
-Initialized ref from pointer 0x7ffdb2c161d0
-Move-assigning ref 0x7ffdb2c161d0
-Destructing ref 0x0
-MyObject[6]
-Destructing ref 0x7ffdb2c161d0
+<example.MyObject1 object at 0x7f830b500e68>
+<example.MyObject1 object at 0x7f830b4fc688>
+<example.MyObject1 object at 0x7f830b4fc5a8>
7
-MyObject[7] constructor
-Initialized ref from pointer 0x7ffdb2c17420
-MyObject[7]
-Destructing ref 0x7ffdb2c17420
-MyObject[7] destructor
-Created empty ref
-MyObject[7] constructor
-Initialized ref from pointer 0x7ffdb2c17420
-Initialized ref from pointer 0x7ffdb2c17420
-Move-assigning ref 0x7ffdb2c17420
-Destructing ref 0x0
-Initialized ref from ref 0x7ffdb2c17420
-MyObject[7]
-Destructing ref 0x7ffdb2c17420
-Destructing ref 0x7ffdb2c17420
-Destructing ref 0x7ffdb2c17420
-MyObject[7] destructor
-Created empty ref
-MyObject[7] constructor
-Initialized ref from pointer 0x7ffdb2c17420
-Initialized ref from pointer 0x7ffdb2c17420
-Move-assigning ref 0x7ffdb2c17420
-Destructing ref 0x0
-MyObject[7]
-Destructing ref 0x7ffdb2c17420
-Destructing ref 0x7ffdb2c17420
-MyObject[7] destructor
-Created empty ref
-MyObject[7] constructor
-Initialized ref from pointer 0x7ffdb2c17420
-Initialized ref from pointer 0x7ffdb2c17420
-Move-assigning ref 0x7ffdb2c17420
-Destructing ref 0x0
-MyObject[7]
-Destructing ref 0x7ffdb2c17420
-Destructing ref 0x7ffdb2c17420
-MyObject[7] destructor
-Destructing ref 0x7ffdb2c161d0
-MyObject[6] destructor
-Destructing ref 0x7ffdb2c167a0
-MyObject[5] destructor
-Destructing ref 0x7ffdb2c16a50
-MyObject[4] destructor
-MyObject2[1] constructor
-MyObject2[2] constructor
-<example.MyObject2 object at 0x10cf5c378>
-MyObject2[1]
-MyObject2[1]
-MyObject2[1]
-MyObject2[1]
-<example.MyObject2 object at 0x10cf5c340>
-MyObject2[2]
-MyObject2[2]
-MyObject2[2]
-MyObject2[2]
-MyObject2[1] destructor
-MyObject2[2] destructor
+<example.MyObject2 object at 0x7f830b50b330>
+<example.MyObject2 object at 0x7f830b50bdb0>
+<example.MyObject2 object at 0x7f83098f6330>
+<example.MyObject3 object at 0x7f830b50b330>
+<example.MyObject3 object at 0x7f830b50bdb0>
+<example.MyObject3 object at 0x7f83098f6370>
+MyObject3[9] destructor