internal static bool UsesUnderscore(this SyntaxNode node, SemanticModel semanticModel, CancellationToken cancellationToken)
{
using (var walker = Walker.Borrow(node, semanticModel, cancellationToken))
{
if (walker.UsesThis == Result.Yes ||
walker.UsesUnderScore == Result.No)
{
return(false);
}
if (walker.UsesUnderScore == Result.Yes ||
walker.UsesThis == Result.No)
{
return(true);
}
foreach (var tree in semanticModel.Compilation.SyntaxTrees)
{
if (tree.FilePath.EndsWith(".g.i.cs"))
{
continue;
}
walker.Visit(tree.GetRoot(cancellationToken));
if (walker.UsesThis == Result.Yes ||
walker.UsesUnderScore == Result.No)
{
return(false);
}
if (walker.UsesUnderScore == Result.Yes ||
walker.UsesThis == Result.No)
{
return(true);
}
}
}
return(false);
}
private static bool IsInitializedWithUninitialized(ExpressionSyntax value, SyntaxNodeAnalysisContext context, out FieldOrProperty other)
{
using (var walker = Walker.Borrow(value, context.SemanticModel, context.CancellationToken))
{
foreach (var identifierName in walker.IdentifierNames)
{
if (!IsNameOf(identifierName) &&
context.SemanticModel.TryGetSymbol(identifierName, context.CancellationToken, out ISymbol symbol) &&
FieldOrProperty.TryCreate(symbol, out other) &&
other.IsStatic &&
other.ContainingType == context.ContainingSymbol.ContainingType &&
symbol.TrySingleDeclaration(context.CancellationToken, out MemberDeclarationSyntax otherDeclaration) &&
otherDeclaration.SpanStart > context.Node.SpanStart &&
IsInitialized(otherDeclaration))
{
return(true);
}
}
}
return(false);
}
