Anonymous struct arrays in namespace

[ninotarantino]

There's an issue when trying to index into an array of anonymous structs when the datatype is a struct within a namespace. Not sure if this is SWIG's fault or possibly ICG.

SWIG version: 3.0.12
Trick version: 19.3.1
GCC version: 7.5.0

Example

test.hh:

#ifndef _TEST_HH_
#define _TEST_HH_

namespace nino {

typedef struct {
    double num[3][5]; /* (--) Test */
    double den[3][5]; /* (--) Test */
} FilterCoeffs;

typedef struct {
    FilterCoeffs filters[4]; /* (--) Test */
} Control;

} // namespace nino

#endif // _TEST_HH_

S_define:

#include "sim_objects/default_trick_sys.sm"
##include "test.hh"

class FilterSimObject : public Trick::SimObject {
    public:
        nino::Control control; /* (--) Test */

        FilterSimObject() {
        }
};
FilterSimObject filter;

Input file:

filter.control.filters[0].num[0] = [1,2,3,4,5]

Outputs

I get the following error when trying to run this unit sim:

Traceback (most recent call last): 
File "RUN_test/input.py", line 3, in <module>
filter.control.filters[0].num[0] = [1,2,3,4,5]
TypeError: 'FilterCoeffs' object does not support indexing

Other notes

This code does work when the FilterCoeffs struct isn't in a namespace, or if it's a class. The workaround right now is to not use C-style struct definitions and instead do

struct MyType {
    // data
};

I messaged Scott about this earlier this year so I thought I'd document it here. It can be a pain to track down.

[jdeans289]

This is being addressed by a refactor of ICG. We will update this issue once it has been completed.