What causes SyntaxError: get_local_var_idx: -1 when loading .rb with Ruby Encoder

Ruby
1

Hello! I’ve been developing SketchUp extensions using Ruby since 2006 but just joined this forum. I’m using Ruby Encoder for the first time in a project but have ran into an issue where an error is getting triggered when the Ruby Encoder loader is loading one of my encoded files.

Error Loading File /Users/trevorbone/Library/Application Support/SketchUp 2023/SketchUp/Plugins/DM_ProfileBuilder4/PBAPI/fence.rb
Error: #<SyntaxError: /Users/trevorbone/Library/Application Support/SketchUp 2023/SketchUp/Plugins/DM_ProfileBuilder4/PBAPI/fence.rb: get_local_var_idx: -1

I think the code that raises this error is found in compile.c:

get_dyna_var_idx_at_raw(const rb_iseq_t *iseq, ID id)
{
    unsigned int i;

    for (i = 0; i < ISEQ_BODY(iseq)->local_table_size; i++) {
        if (ISEQ_BODY(iseq)->local_table[i] == id) {
            return (int)i;
        }
    }
    return -1;
}

static int
get_local_var_idx(const rb_iseq_t *iseq, ID id)
{
    int idx = get_dyna_var_idx_at_raw(ISEQ_BODY(iseq)->local_iseq, id);

    if (idx < 0) {
        COMPILE_ERROR(iseq, ISEQ_LAST_LINE(iseq),
                      "get_local_var_idx: %d", idx);
    }

    return idx;
}

It looks like the function get_dyna_var_idx_at_raw is returning -1.

Any ideas what would cause that? I have contacted the Ruby Encoder support team as well but because the error seems to be raised within the core Ruby code, I thought I’d make a post here as well.

Thanks!