Tag invalid-value errors with an opaque field+value locator#20
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Tag the otherwise-anonymous "invalid value" with <dbr_instances.tag>.<dbr_tables.id>.<dbr_fields.id>:<value-shape> so it can be traced to a field and value-shape from logs, without leaking schema names or the offending value to outside consumers. Inserted before the "at FILE line N" backtrace so UnRPC's strip still removes the path and code=internal_error is preserved. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Field::makevaluenow stamps the otherwise-anonymousinvalid valueerror with an opaque locator:Format:
<dbr_instances.tag>.<dbr_tables.id>.<dbr_fields.id>:<value-shape>— numeric ids + a value shape (length/char-classes/ref/undef), never schema names or the raw value, so it's safe for external consumers. Resolve the ids against the dbr config to recover the field.Inserted before the
at FILE line Nbacktrace so UnRPC's$-anchored strip still removes the file path andcode=internal_erroris preserved. Locator-building is guarded so it can never mask the original error.(Rebased clean onto current master; supersedes #19, which was cut from a stale master and carried an unrelated CI commit.)
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