Function VariableHelper

Source/cmCMakePresetsGraphReadJSONConfigurePresets.cxx:174–201

    .Bind("value"_s, &CacheVariable::Value, VariableValueHelper);

bool VariableHelper(cm::optional<CacheVariable>& out, Json::Value const* value,
                    cmJSONState* state)
{
  if (value->isBool()) {
    out = CacheVariable{
      /*Type=*/"BOOL",
      /*Value=*/value->asBool() ? "TRUE" : "FALSE",
    };
    return true;
  }
  if (value->isString()) {
    out = CacheVariable{
      /*Type=*/"",
      /*Value=*/value->asString(),
    };
    return true;
  }
  if (value->isObject()) {
    out.emplace();
    return VariableObjectHelper(*out, value, state);
  }
  if (value->isNull()) {
    out = cm::nullopt;
    return true;
  }
  cmCMakePresetsErrors::INVALID_VARIABLE(value, state);
  return false;
}

auto const VariablesHelper =
  JSONHelperBuilder::Map<cm::optional<CacheVariable>>(