private static SyntaxNode Transform(SyntaxNode oldNode, SyntaxNode newNode, Scope scope, LexicalExtension <SyntaxToken> extension)
{
Debug.Assert(newNode is BlockSyntax);
var isAssignment = oldNode is LocalDeclarationStatementSyntax;
if (!isAssignment && oldNode is BinaryExpressionSyntax)
{
var expr = oldNode as BinaryExpressionSyntax;
isAssignment = expr.Kind() == SyntaxKind.SimpleAssignmentExpression;
}
if (isAssignment)
{
scope.AddError("r01", "R does not return", oldNode);
return(newNode);
}
var document = scope.GetDocument <SyntaxToken, SyntaxNode, SemanticModel>();
document.change(oldNode.Parent, RoslynCompiler.ExplodeBlock(newNode));
return(newNode);
}
