/// <summary>
/// Normalizes the <paramref name="declaration" />.
/// </summary>
public override SyntaxNode VisitIndexerDeclaration(IndexerDeclarationSyntax declaration)
{
// Nothing to do here for properties without expression bodies
if (declaration.ExpressionBody == null)
return declaration;
// Nothing to do here for indexers not defined in fault effects or for indexers that are no overrides of some port
var propertySymbol = declaration.GetPropertySymbol(SemanticModel);
if (!propertySymbol.ContainingType.IsFaultEffect(SemanticModel) || !propertySymbol.IsOverride)
return declaration;
var originalDeclaration = declaration;
var statements = AsStatementBody(propertySymbol.GetMethod, declaration.ExpressionBody.Expression);
var getter = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration, statements);
var accessorList = SyntaxFactory.AccessorList(SyntaxFactory.SingletonList(getter));
declaration = declaration.WithAccessorList(accessorList);
declaration = declaration.WithExpressionBody(null).WithSemicolonToken(default(SyntaxToken));
return declaration.EnsureLineCount(originalDeclaration);
}
private static async Task<Document> ReplaceWithExpressionBodiedMember(Document document, IndexerDeclarationSyntax declaration, CancellationToken cancellationToken)
{
var newDeclaration = declaration
.WithExpressionBody(SyntaxFactory.ArrowExpressionClause(GetExpression(declaration.AccessorList)))
.WithAccessorList(null)
.WithSemicolonToken(GetSemicolon(declaration.AccessorList))
.WithAdditionalAnnotations(Formatter.Annotation);
var root = await document.GetSyntaxRootAsync(cancellationToken);
var newRoot = root.ReplaceNode(declaration, newDeclaration);
return document.WithSyntaxRoot(newRoot);
}