connectSsaDriverFromMappings static method

Implementation

@protected
static void connectSsaDriverFromMappings(
    Logic driver, Map<Logic, Logic> mappings,
    {required int context}) {
  final ssaDrivers = Conditional._findSsaDriversFrom(driver, context);

  // take all the "current" names for these signals
  for (final ssaDriver in ssaDrivers) {
    final reference = SsaLogic.referenceOf(ssaDriver, context: context);
    if (!mappings.containsKey(reference)) {
      throw UninitializedSignalException(reference.name);
    }

    // if these are already connected, just skip it, we're fine already
    if (ssaDriver.srcConnection != null &&
        ssaDriver.srcConnection == mappings[reference]!) {
      continue;
    }

    // if these are the same signal, also just skip it
    if (ssaDriver == mappings[reference]!) {
      continue;
    }

    // if at this point there's still a srcConnection, then something is wrong
    // and someone probably reused a signal when they shouldn't have
    if (ssaDriver.srcConnection != null) {
      throw MappedSignalAlreadyAssignedException(reference.name);
    }

    ssaDriver <= mappings[reference]!;
  }
}