Restrict the name used in %extend to be just the struct/class name and not a typedef to a class/struct. Typedefs were only partially working anyway. Anonymous struct typedefs excluded. Deprecate with a warning for now.

Examples/test-suite/errors/expected.log

@@ -188,6 +188,10 @@ pp_variable_args.i:6: Error: Variable length macro argument must be last paramet
 :::::::::::::::::::::::::::::::: swig_apply_nargs.i :::::::::::::::::::::::::::::::::::
 swig_apply_nargs.i:6: Error: Can't apply (char *str,int len) to (int x).  Number of arguments don't match.
 
+:::::::::::::::::::::::::::::::: swig_extend.i :::::::::::::::::::::::::::::::::::
+swig_extend.i:19: Warning 326: Deprecated %extend name used - the struct name 'StructBName' should be used instead of the typedef name 'StructB'.
+swig_extend.i:34: Warning 303: %extend defined for an undeclared class StructDName.
+
 :::::::::::::::::::::::::::::::: swig_identifier.i :::::::::::::::::::::::::::::::::::
 swig_identifier.i:5: Warning 503: Can't wrap 'foo bar' unless renamed to a valid identifier.
 

Examples/test-suite/errors/make.sh

@@ -54,6 +54,7 @@ pp_unterm_comment
 pp_unterm_string
 pp_variable_args
 swig_apply_nargs
+swig_extend
 swig_identifier
 swig_insert_bad
 swig_typemap_copy

Examples/test-suite/errors/swig_extend.i

@@ -0,0 +1,35 @@
+%module xxx
+
+typedef struct {
+  int myint;
+} StructA;
+
+typedef struct StructBName {
+  int myint;
+} StructB;
+
+typedef struct StructC {
+  int myint;
+} StructC;
+
+%extend StructA {
+  void method() {}
+}
+
+%extend StructB {
+  void method() {}
+}
+
+%extend StructC {
+  void method() {}
+}
+
+struct StructD {
+  int myint;
+};
+typedef struct StructD StructDName;
+
+%extend StructDName {
+  void method() {}
+}
+

Examples/test-suite/extend_constructor_destructor.i

@@ -1,5 +1,8 @@
 %module extend_constructor_destructor
 
+%warnfilter(SWIGWARN_PARSE_EXTEND_NAME) Space::tagCStruct;
+%warnfilter(SWIGWARN_PARSE_EXTEND_NAME) tagEStruct;
+
 %inline %{
 int globalVar = 0;
 

Examples/test-suite/extend_typedef_class.i

@@ -1,5 +1,8 @@
 %module extend_typedef_class
 
+%warnfilter(SWIGWARN_PARSE_EXTEND_NAME) tagCClass;
+%warnfilter(SWIGWARN_PARSE_EXTEND_NAME) tagCStruct;
+
 // classes in global namespace
 %inline %{
   typedef struct tagAClass {