/// <summary>
/// Saves the unevaluated value of <paramref name="propertyName"/>, if defined in context, to <paramref name="storage"/>.
/// </summary>
public static async Task SaveValueIfCurrentlySetAsync(this IProjectProperties properties, string propertyName, ITemporaryPropertyStorage storage)
{
if (!await properties.IsValueInheritedAsync(propertyName))
{
string?currentPropertyValue = await properties.GetUnevaluatedPropertyValueAsync(propertyName);
if (!Strings.IsNullOrEmpty(currentPropertyValue))
{
storage.AddOrUpdatePropertyValue(propertyName, currentPropertyValue);
}
}
}
/// <summary>
/// Restores the saved value of <paramref name="propertyName"/>, if not defined in context, from <paramref name="storage"/>.
/// </summary>
public static async Task RestoreValueIfNotCurrentlySetAsync(this IProjectProperties properties, string propertyName, ITemporaryPropertyStorage storage, IReadOnlyDictionary <string, string>?dimensionalConditions = null)
{
if (storage.GetPropertyValue(propertyName) is string previousValue)
{
bool inherited = await properties.IsValueInheritedAsync(propertyName);
string?currentPropertyValue = await properties.GetUnevaluatedPropertyValueAsync(propertyName);
if (inherited || string.IsNullOrEmpty(currentPropertyValue))
{
await properties.SetPropertyValueAsync(propertyName, previousValue, dimensionalConditions);
}
}
}
public virtual Task <bool> IsValueInheritedAsync(string propertyName) => DelegatedProperties.IsValueInheritedAsync(propertyName);
