public static void Analyze(
SyntaxNodeAnalysisContext context,
SimpleMemberInvocationExpressionInfo invocationInfo)
{
SimpleMemberInvocationExpressionInfo invocationInfo2 = SyntaxInfo.SimpleMemberInvocationExpressionInfo(invocationInfo.Expression);
if (!invocationInfo2.Success)
{
return;
}
if (invocationInfo2.Arguments.Count != 1)
{
return;
}
SemanticModel semanticModel = context.SemanticModel;
CancellationToken cancellationToken = context.CancellationToken;
if (!string.Equals(invocationInfo2.NameText, "Where", StringComparison.Ordinal))
{
return;
}
IMethodSymbol methodSymbol2 = semanticModel.GetReducedExtensionMethodInfo(invocationInfo2.InvocationExpression, cancellationToken).Symbol;
if (methodSymbol2 == null)
{
return;
}
if (!SymbolUtility.IsLinqExtensionOfIEnumerableOfT(methodSymbol2, semanticModel, "Where", parameterCount: 2))
{
return;
}
if (SymbolUtility.IsPredicateFunc(
methodSymbol2.Parameters[1].Type,
methodSymbol2.TypeArguments[0],
semanticModel))
{
IMethodSymbol methodSymbol = semanticModel.GetReducedExtensionMethodInfo(invocationInfo.InvocationExpression, cancellationToken).Symbol;
if (methodSymbol != null &&
SymbolUtility.IsLinqWhere(methodSymbol, semanticModel))
{
Analyze(context, invocationInfo, invocationInfo2);
}
}
else if (SymbolUtility.IsPredicateFunc(
methodSymbol2.Parameters[1].Type,
methodSymbol2.TypeArguments[0],
semanticModel.Compilation.GetSpecialType(SpecialType.System_Int32),
semanticModel))
{
IMethodSymbol methodSymbol = semanticModel.GetReducedExtensionMethodInfo(invocationInfo.InvocationExpression, cancellationToken).Symbol;
if (methodSymbol != null &&
SymbolUtility.IsLinqWhereWithIndex(methodSymbol, semanticModel))
{
Analyze(context, invocationInfo, invocationInfo2);
}
}
}