37 lines
1.4 KiB
Markdown
37 lines
1.4 KiB
Markdown
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# Bug Report: Missing SWIG binding for `write_gate_spice_cmd`
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## Summary
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`write_gate_spice` Tcl command always fails with `invalid command name "write_gate_spice_cmd"` because the underlying C++ SWIG binding is not registered.
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## Details
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- **`write_gate_spice`** is defined as a Tcl proc in `spice/WriteSpice.tcl:138`
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- It calls `write_gate_spice_cmd` at line 198 to invoke the C++ implementation
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- **`write_gate_spice_cmd` is not registered** in any Tcl namespace (neither global nor `::sta::`)
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- In contrast, `write_path_spice_cmd` IS correctly registered as `::sta::write_path_spice_cmd`
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## Reproduction
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```tcl
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sta::sta -no_init -no_splash -exit /dev/stdin <<'EOF'
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puts [info commands ::sta::write_path_spice_cmd] ;# returns ::sta::write_path_spice_cmd
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puts [info commands ::sta::write_gate_spice_cmd] ;# returns empty
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EOF
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```
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## Impact
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All `write_gate_spice` calls silently fail when wrapped in `catch`, or crash `sta` when called directly. The C++ implementation likely exists in `WriteSpice.cc` but the SWIG `.i` file is missing the binding declaration for `write_gate_spice_cmd`.
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## Affected Test Files
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The following test files had `write_gate_spice` catch blocks that always produced error output:
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- `spice/test/spice_gate_advanced.tcl`
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- `spice/test/spice_gate_cells.tcl`
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- `spice/test/spice_gcd_gate.tcl`
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- `spice/test/spice_gcd_path.tcl`
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- `spice/test/spice_multipath.tcl`
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- `spice/test/spice_subckt_file.tcl`
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- `spice/test/spice_write_options.tcl`
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