/// <summary>
/// Compiles an Ultraviolet Style Sheet (UVSS) document from the specified abstract syntax tree.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="tree">A <see cref="UvssDocumentSyntax"/> that represents the
/// abstract syntax tree to compile.</param>
/// <returns>A new instance of <see cref="UvssDocument"/> that represents the compiled data.</returns>
public static UvssDocument Compile(UltravioletContext uv, UvssDocumentSyntax tree)
{
Contract.Require(uv, nameof(uv));
Contract.Require(tree, nameof(tree));
return(UvssCompiler.Compile(uv, tree));
}
/// <summary>
/// Compiles an Ultraviolet Style Sheet (UVSS) document from the specified abstract syntax tree.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="tree">A <see cref="UvssDocumentSyntax"/> that represents the
/// abstract syntax tree to compile.</param>
/// <returns>A new instance of <see cref="UvssDocument"/> that represents the compiled data.</returns>
public static UvssDocument Compile(UltravioletContext uv, UvssDocumentSyntax tree)
{
Contract.Require(uv, nameof(uv));
// Fail to compile if the tree reports any error diagnostics.
var errors = tree.GetDiagnostics().Where(x => x.Severity == DiagnosticSeverity.Error);
if (errors.Any())
{
throw new UvssException(PresentationStrings.StyleSheetParserError,
errors.Select(x => UvssError.FromDiagnosticInfo(x)));
}
// Determine the document's culture.
var cultureDirective = GetLastDirective <UvssCultureDirectiveSyntax>(tree);
var culture = (cultureDirective == null) ? UvssDocument.DefaultCulture :
CultureInfo.GetCultureInfo(cultureDirective.CultureValue.Value);
// Compile a list of rule sets and storyboards.
var docRuleSets = new List <UvssRuleSet>();
var docStoryboards = new List <UvssStoryboard>();
for (int i = 0; i < tree.Content.Count; i++)
{
var contentNode = tree.Content[i];
switch (contentNode.Kind)
{
case SyntaxKind.RuleSet:
var ruleSet = CompileRuleSet((UvssRuleSetSyntax)contentNode, culture);
docRuleSets.Add(ruleSet);
break;
case SyntaxKind.Storyboard:
var storyboard = CompileStoryboard((UvssStoryboardSyntax)contentNode, culture);
docStoryboards.Add(storyboard);
break;
case SyntaxKind.CultureDirective:
/* Skip directives */
break;
default:
throw new UvssException(PresentationStrings.StyleSheetParserError);
}
}
return(new UvssDocument(uv, docRuleSets, docStoryboards));
}
/// <inheritdoc/>
public override SyntaxNode VisitDocument(UvssDocumentSyntax node)
{
var unchanged = true;
var newContent = VisitList(node.Content);
if (newContent.Node != node.Content.Node)
{
unchanged = false;
}
var newEndOfFileToken = (SyntaxToken)Visit(node.EndOfFileToken);
if (newEndOfFileToken != node.EndOfFileToken)
{
unchanged = false;
}
return(unchanged ? node : new UvssDocumentSyntax(
newContent,
newEndOfFileToken));
}
/// <summary>
/// Visits the specified document node.
/// </summary>
/// <param name="node">The node to visit.</param>
/// <returns>A node which should replace the visited node, or a reference to the visited node
/// itself if no changes were made.</returns>
public virtual SyntaxNode VisitDocument(UvssDocumentSyntax node)
{
return(VisitSyntaxNode(node));
}
/// <summary>
/// Gets the last directive of the specified type within the specified document.
/// </summary>
private static TDirective GetLastDirective <TDirective>(UvssDocumentSyntax document)
where TDirective : UvssDirectiveSyntax
{
return(document.Directives.OfType <TDirective>().LastOrDefault());
}
/// <summary>
/// Initializes a new instance of the <see cref="UvssTextParserResult"/> structure.
/// </summary>
/// <param name="snapshot">The snapshot from which the document was generated.</param>
/// <param name="document">The document that was generated by the parser.</param>
public UvssTextParserResult(ITextSnapshot snapshot, UvssDocumentSyntax document)
{
this.Snapshot = snapshot;
this.Document = document;
}
