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This commit adds a `debug_scopes` container, which can collect metadata about scopes in a design. Currently the only scope is that of a module. A module scope can be represented either by a module and cell pair, or a `$scopeinfo` cell in a flattened netlist. The metadata produced by the C++ API is identical between these two cases, so flattening remains transparent to a netlist with CXXRTL. The existing `debug_items` method is deprecated. This isn't strictly necessary, but the user experience is better if the path is provided as e.g. `"top "` (as some VCD viewers make it awkward to select topmost anonymous scope), and the upgrade flow encourages that, which should reduce frustration later. While the new `debug_items` method could still be broken in the future as the C++ API permits, this seems unlikely since the debug information can now capture all common netlist aspects and includes several extension points (via `debug_item`, `debug_scope` types). Also, naming of scope paths was normalized to `path` or `top_path`, as applicable. |
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| .. | ||
| cxxrtl_capi.cc | ||
| cxxrtl_capi.h | ||
| cxxrtl_capi_vcd.cc | ||
| cxxrtl_capi_vcd.h | ||