Type containing the string representation of a setting as well as the static metadata associated with it. Used as the "source" in setting conversion.
Declared in <folly/settings/Types.h>
struct SettingValueAndMetadata;| Name | Description |
|---|---|
SettingValueAndMetadata [constructor] | Constructs a value and metadata pair from a string value and metadata. |
| Name | Description |
|---|---|
meta | The static metadata associated with the setting. |
value | The string representation of the setting value. |
| Name | Description |
|---|---|
convertTo | Like parseTo in folly/Conv.h, but the "source" is SettingValueAndMetadata instead of a StringPiece. Defaults to folly::tryTo<T>(StringPiece) but can be overridden using ADL for user defined types. |
to | Converts a setting value and metadata to type T, throwing on error. |
tryTo | Conversion functions for converting a SettingValueAndMetadata to a setting type T. Implementation is similar to folly/Conv and allows for customization using the convertTo function above. |