/// <summary>
/// Returns enumerable collection of <see cref="Snippet"/> contained by a specified <see cref="Stream"/>.
/// </summary>
/// <param name="stream">The <see cref="Stream"/> that contains snippets to deserialize.</param>
/// <returns>Enumerable collection of snippets being deserialized.</returns>
/// <exception cref="ArgumentNullException"><paramref name="stream"/> is <c>null</c>.</exception>
public static IEnumerable <Snippet> Deserialize(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
return(Deserialize());
IEnumerable <Snippet> Deserialize()
{
using (XmlReader xmlReader = XmlReader.Create(stream, XmlReaderSettings))
{
while (xmlReader.Read() && xmlReader.NodeType != XmlNodeType.Element)
{
}
switch (xmlReader.Name)
{
case "CodeSnippet":
{
CodeSnippetElement element = Deserialize <CodeSnippetElement>(xmlReader, CodeSnippetElementXmlSerializer);
yield return(SnippetMapper.MapFromElement(element));
break;
}
case "CodeSnippets":
{
CodeSnippetsElement element = Deserialize <CodeSnippetsElement>(xmlReader, CodeSnippetsElementXmlSerializer);
if (element.Snippets == null)
{
break;
}
for (int i = 0; i < element.Snippets.Length; i++)
{
yield return(SnippetMapper.MapFromElement(element.Snippets[i]));
}
break;
}
}
}
}
}
/// <summary>
/// Maps each element of <see cref="CodeSnippetElement"/> sequence to the newly created <see cref="CodeSnippetElement"/>, optionally modifying serialization process.
/// </summary>
/// <param name="snippets">An enumerable collection of code snippets to be serialized.</param>
/// <param name="settings">A <see cref="SaveSettings"/> that modify serialization process.</param>
/// <returns>An enumerable collection of <see cref="CodeSnippetElement"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="snippets"/> is <c>null</c>.</exception>
public static IEnumerable <CodeSnippetElement> MapToElement(IEnumerable <Snippet> snippets, SaveSettings settings)
{
if (snippets == null)
{
throw new ArgumentNullException(nameof(snippets));
}
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
return(MapToElement());
IEnumerable <CodeSnippetElement> MapToElement()
{
foreach (Snippet snippet in snippets)
{
yield return(SnippetMapper.MapToElement(snippet, settings));
}
}
}
private static void Serialize(XmlWriter xmlWriter, IEnumerable <Snippet> snippets, SaveSettings settings)
{
Serialize(xmlWriter, SnippetMapper.MapToElement(snippets, settings).ToArray(), settings);
}
private static void Serialize(XmlWriter xmlWriter, Snippet snippet, SaveSettings settings)
{
Serialize(xmlWriter, new CodeSnippetElement[] { SnippetMapper.MapToElement(snippet, settings) }, settings);
}
