Add Tcl support for std::unique_ptr and std::auto_ptr

Equivalent to Ruby/Python implementations.

Examples/test-suite/cpp11_std_unique_ptr.i

@@ -1,6 +1,6 @@
 %module cpp11_std_unique_ptr
 
-#if defined(SWIGCSHARP) || defined(SWIGJAVA) || defined(SWIGPYTHON) || defined(SWIGRUBY) || defined(SWIGPERL)
+#if defined(SWIGCSHARP) || defined(SWIGJAVA) || defined(SWIGPYTHON) || defined(SWIGRUBY) || defined(SWIGPERL) || defined(SWIGTCL)
 
 %include "std_string.i"
 %include "std_unique_ptr.i"

Examples/test-suite/li_std_auto_ptr.i

@@ -12,7 +12,7 @@
 #endif
 %}
 
-#if defined(SWIGCSHARP) || defined(SWIGJAVA) || defined(SWIGPYTHON) || defined(SWIGRUBY) || defined(SWIGPERL)
+#if defined(SWIGCSHARP) || defined(SWIGJAVA) || defined(SWIGPYTHON) || defined(SWIGRUBY) || defined(SWIGPERL) || defined(SWIGTCL)
 
 %include "std_string.i"
 %include "std_auto_ptr.i"

Examples/test-suite/tcl/cpp11_std_unique_ptr_runme.tcl

@@ -0,0 +1,140 @@
+
+if [ catch { load ./cpp11_std_unique_ptr[info sharedlibextension] cpp11_std_unique_ptr} err_msg ] {
+	puts stderr "Could not load shared object:\n$err_msg"
+}
+
+
+proc checkCount {expected_count} {
+  set actual_count [Klass_getTotal_count]
+  if {$actual_count != $expected_count} {
+    error "Counts incorrect, expected: $expected_count actual: $actual_count"
+  }
+}
+
+################################# Tcl pointer recycling bug start
+#
+# ### Possibly related to premature object deletion problem mentioned in newobject1_runme.tcl. ###
+#
+# While this won't be repeatable on all machines, the following caused the underlying C++
+# pointer value for k1 to be reused for k4.
+#
+# If the C/C++ memory allocator uses the same pointer value again, then a command name that
+# contains a pointer encoding, such as, _b09b1148bd550000_p_Klass (not a variable name) will be
+# re-used in SWIG_Tcl_NewInstanceObj. The command should have disappeared from the Tcl side when
+# the object was deleted, but there is some sort of bug preventing this from happening in this
+# scenario as follows:
+#
+# Below creates a struct via the call to Tcl_CreateObjCommand in
+# SWIG_Tcl_NewInstanceObj (creates a command name with a pointer encoding such as
+# _50fb3608ce550000_p_Klass) which also makes a second call to Tcl_CreateObjCommand in
+# SWIG_Tcl_ObjectConstructor (creates a command name with the name k1).
+Klass k1 "one"
+# Line below calls Tcl_DeleteCommandFromToken but is only called for the command created in the
+# second call (k1) and not the first call to Tcl_CreateObjCommand.
+k1 -delete
+set k2 [makeKlassUniquePtr "two"]
+set k3 [makeKlassUniquePtr "three"]
+$k2 -delete
+# If the memory allocator uses the same pointer value, then SWIG_Tcl_NewInstanceObj will find
+# the undeleted command _50fb3608ce550000_p_Klass and re-use it. This command should surely
+# have been deleted !??
+set k4 [makeKlassUniquePtr "four"]
+$k3 -delete
+$k4 -delete
+checkCount 0
+################################# Tcl pointer recycling bug end
+
+
+# unique_ptr as input
+Klass kin "KlassInput"
+checkCount 1
+set s [takeKlassUniquePtr kin]
+checkCount 0
+if {[kin cget -thisown]} {
+  error "thisown should be false"
+}
+if {$s != "KlassInput"} {
+  error "Incorrect string: $s"
+}
+if {![is_nullptr kin]} {
+  error "is_nullptr failed"
+}
+kin -delete # Should not fail, even though already deleted
+checkCount 0
+
+Klass kin "KlassInput"
+checkCount 1
+set s [takeKlassUniquePtr kin]
+checkCount 0
+if {[kin cget -thisown]} {
+  error "thisown should be false"
+}
+if {$s != "KlassInput"} {
+  error "Incorrect string: $s"
+}
+if {![is_nullptr kin]} {
+  error "is_nullptr failed"
+}
+set exception_thrown 0
+if [ catch { set s [takeKlassUniquePtr kin] } e ] {
+  if {[string first "cannot release ownership as memory is not owned" $e] == -1} {
+    error "incorrect exception message: $e"
+  }
+  set exception_thrown 1
+}
+if {!$exception_thrown} {
+  error "double usage of takeKlassUniquePtr should have been an error"
+}
+kin -delete # Should not fail, even though already deleted
+checkCount 0
+
+Klass kin "KlassInput"
+set exception_thrown 0
+if [ catch {
+  set notowned [get_not_owned_ptr kin]
+  takeKlassUniquePtr notowned
+} ] {
+  set exception_thrown 1
+}
+if {!$exception_thrown} {
+  error "Should have thrown 'Cannot release ownership as memory is not owned' error"
+}
+kin -delete
+checkCount 0
+
+KlassInheritance kini "KlassInheritanceInput"
+checkCount 1
+set s [takeKlassUniquePtr kini]
+checkCount 0
+if {[kini cget -thisown]} {
+  error "thisown should be false"
+}
+if {$s != "KlassInheritanceInput"} {
+  error "Incorrect string: $s"
+}
+if {![is_nullptr kini]} {
+  error "is_nullptr failed"
+}
+kini -delete # Should not fail, even though already deleted
+checkCount 0
+
+# unique_ptr as output
+set k1 [makeKlassUniquePtr "first"]
+set k2 [makeKlassUniquePtr "second"]
+if {[Klass_getTotal_count] != 2} {
+  error "number of objects should be 2"
+}
+
+$k1 -delete
+if {[Klass_getTotal_count] != 1} {
+  error "number of objects should be 1"
+}
+
+if {[$k2 getLabel] != "second"} {
+  error "wrong object label"
+}
+
+$k2 -delete
+if {[Klass_getTotal_count] != 0} {
+  error "no objects should be left"
+}

Examples/test-suite/tcl/li_std_auto_ptr_runme.tcl

@@ -0,0 +1,111 @@
+
+if [ catch { load ./li_std_auto_ptr[info sharedlibextension] li_std_auto_ptr} err_msg ] {
+	puts stderr "Could not load shared object:\n$err_msg"
+}
+
+
+proc checkCount {expected_count} {
+  set actual_count [Klass_getTotal_count]
+  if {$actual_count != $expected_count} {
+    error "Counts incorrect, expected: $expected_count actual: $actual_count"
+  }
+}
+
+################################# Tcl pointer recycling bug start
+# Not copied from cpp11_std_unique_ptr_runme.tcl
+################################# Tcl pointer recycling bug end
+
+
+# auto_ptr as input
+Klass kin "KlassInput"
+checkCount 1
+set s [takeKlassAutoPtr kin]
+checkCount 0
+if {[kin cget -thisown]} {
+  error "thisown should be false"
+}
+if {$s != "KlassInput"} {
+  error "Incorrect string: $s"
+}
+if {![is_nullptr kin]} {
+  error "is_nullptr failed"
+}
+kin -delete # Should not fail, even though already deleted
+checkCount 0
+
+Klass kin "KlassInput"
+checkCount 1
+set s [takeKlassAutoPtr kin]
+checkCount 0
+if {[kin cget -thisown]} {
+  error "thisown should be false"
+}
+if {$s != "KlassInput"} {
+  error "Incorrect string: $s"
+}
+if {![is_nullptr kin]} {
+  error "is_nullptr failed"
+}
+set exception_thrown 0
+if [ catch { set s [takeKlassAutoPtr kin] } e ] {
+  if {[string first "cannot release ownership as memory is not owned" $e] == -1} {
+    error "incorrect exception message: $e"
+  }
+  set exception_thrown 1
+}
+if {!$exception_thrown} {
+  error "double usage of takeKlassAutoPtr should have been an error"
+}
+kin -delete # Should not fail, even though already deleted
+checkCount 0
+
+Klass kin "KlassInput"
+set exception_thrown 0
+if [ catch {
+  set notowned [get_not_owned_ptr kin]
+  takeKlassAutoPtr notowned
+} ] {
+  set exception_thrown 1
+}
+if {!$exception_thrown} {
+  error "Should have thrown 'Cannot release ownership as memory is not owned' error"
+}
+kin -delete
+checkCount 0
+
+KlassInheritance kini "KlassInheritanceInput"
+checkCount 1
+set s [takeKlassAutoPtr kini]
+checkCount 0
+if {[kini cget -thisown]} {
+  error "thisown should be false"
+}
+if {$s != "KlassInheritanceInput"} {
+  error "Incorrect string: $s"
+}
+if {![is_nullptr kini]} {
+  error "is_nullptr failed"
+}
+kini -delete # Should not fail, even though already deleted
+checkCount 0
+
+# auto_ptr as output
+set k1 [makeKlassAutoPtr "first"]
+set k2 [makeKlassAutoPtr "second"]
+if {[Klass_getTotal_count] != 2} {
+  error "number of objects should be 2"
+}
+
+$k1 -delete
+if {[Klass_getTotal_count] != 1} {
+  error "number of objects should be 1"
+}
+
+if {[$k2 getLabel] != "second"} {
+  error "wrong object label"
+}
+
+$k2 -delete
+if {[Klass_getTotal_count] != 0} {
+  error "no objects should be left"
+}