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Unwrap director classes only when returning a pointer or reference to an object

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This involves properly counting the number of references and pointers in the return
type of a function and only generate unwrapping code if this number is 1.
For template instances some post-processing code is added to fix the 'decl' and
'type' attributes of functions if changed in an unfavorable way during template
expansion.
This commit fixes swig#1811.
This commit is contained in:
Thomas Reitmayr 2020-06-09 21:58:47 +02:00
commit 01277d700c
9 changed files with 369 additions and 6 deletions
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4
Source/Modules/python.cxx
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@ -3118,9 +3118,7 @@ public:
#if 1
int unwrap = 0;
String *decl = Getattr(n, "decl");
int is_pointer = SwigType_ispointer_return(decl);
int is_reference = SwigType_isreference_return(decl);
if (is_pointer || is_reference) {
if (SwigType_refptr_count_return(decl) == 1) {
String *type = Getattr(n, "type");
//Node *classNode = Swig_methodclass(n);
//Node *module = Getattr(classNode, "module");