/// <summary>
/// Gets an ordered <see cref="IReadOnlyList{T}"/> of parsed <see cref="CodeTree"/> for each
/// <c>_GlobalImport</c> that is applicable to the page located at <paramref name="pagePath"/>. The list is
/// ordered so that the <see cref="CodeTree"/> for the <c>_GlobalImport</c> closest to the
/// <paramref name="pagePath"/> in the file system appears first.
/// </summary>
/// <param name="pagePath">The path of the page to locate inherited chunks for.</param>
/// <returns>A <see cref="IReadOnlyList{CodeTree}"/> of parsed <c>_GlobalImport</c>
/// <see cref="CodeTree"/>s.</returns>
public virtual IReadOnlyList <CodeTree> GetInheritedCodeTrees([NotNull] string pagePath)
{
var inheritedCodeTrees = new List <CodeTree>();
var templateEngine = new RazorTemplateEngine(_razorHost);
foreach (var globalImportPath in ViewHierarchyUtility.GetGlobalImportLocations(pagePath))
{
// globalImportPath contains the app-relative path of the _GlobalImport.
// Since the parsing of a _GlobalImport would cause parent _GlobalImports to be parsed
// we need to ensure the paths are app-relative to allow the GetGlobalFileLocations
// for the current _GlobalImport to succeed.
var codeTree = _codeTreeCache.GetOrAdd(globalImportPath,
fileInfo => ParseViewFile(templateEngine,
fileInfo,
globalImportPath));
if (codeTree != null)
{
inheritedCodeTrees.Add(codeTree);
}
}
return(inheritedCodeTrees);
}
