Fix python code generation for bounded strings (#440) (#442)

* Refs #22835. SWIG extend to set fixed_string from std::string.

Signed-off-by: Miguel Company <[email protected]>

* Refs #22835. SWIG export template for fixed_string members.

Signed-off-by: Miguel Company <[email protected]>

* Refs #22835. Fix access to typecode.

Signed-off-by: Miguel Company <[email protected]>

* Refs #22835. Fix max size typo.

Signed-off-by: Miguel Company <[email protected]>

* Refs #22835. Fix exported template name.

Signed-off-by: Miguel Company <[email protected]>

* Refs #22835. Fix extend code.

Signed-off-by: Miguel Company <[email protected]>

* Refs #22850. Apply suggestions from review.

Signed-off-by: Miguel Company <[email protected]>

---------

Signed-off-by: Miguel Company <[email protected]>
(cherry picked from commit 8eaca9a)

Co-authored-by: Miguel Company <[email protected]>

Author: mergify[bot]

src/main/java/com/eprosima/fastcdr/idl/templates/TypesSwigInterface.stg

@@ -52,7 +52,12 @@ $ctx.directIncludeDependencies : {include | %include "$include$.i"}; separator="
 %}
 
 %include <fastcdr/config.h>
+$if(ctx.thereIsOptionalAnnotation)$
 %import(module="fastdds") "fastcdr/xcdr/optional.hpp"
+$endif$
+$if(ctx.thereIsString)$
+%import(module="fastdds") "fastcdr/cdr/fixed_size_string.hpp"
+$endif$
 %import(module="fastdds") "fastdds/dds/core/LoanableCollection.hpp"
 %import(module="fastdds") "fastdds/dds/core/LoanableTypedCollection.hpp"
 %import(module="fastdds") "fastdds/dds/core/LoanableSequence.hpp"
@@ -188,6 +193,18 @@ $else$
 %ignore $struct_name$::$member.name$();
 %rename("%s") $struct_name$::$member.name$() const;
 
+$if(member.typecode.isStringType && member.typecode.isBounded)$
+%template(fixed_string_$member.typecode.maxsize$) eprosima::fastcdr::fixed_string<$member.typecode.maxsize$>;
+%extend $struct_name$
+{
+    void $member.name$(const std::string& value)
+    {
+        eprosima::fastcdr::fixed_string<$member.typecode.maxsize$> tmp(value);
+        \$self->$member.name$(tmp);
+    }
+}
+$endif$
+
 $endif$
 
 >>