public static StatementSyntax GetPlatformSpecificStatements()

in SharpGen/Generator/GeneratorHelpers.cs [116:169]
43 lines of code
9 McCabe index (conditional complexity)

        public static StatementSyntax GetPlatformSpecificStatements(GlobalNamespaceProvider globalNamespace,
                                                                    GeneratorConfig config,
                                                                    IEnumerable<PlatformDetectionType> types,
                                                                    Func<PlatformDetectionType, StatementSyntax> syntaxBuilder)
        {
            List<IfStatementSyntax> ifStatements = new();

            var allPlatformBitmap = config.Platforms;

            foreach (var platform in types)
            {
                var platformStatement = syntaxBuilder(platform);

                if ((platform & allPlatformBitmap) == allPlatformBitmap)
                    return platformStatement;

                ExpressionSyntax condition = null;

                foreach (var flag in PlatformsNoAny)
                {
                    if ((platform & flag) != flag)
                        continue;

                    var newCondition = MemberAccessExpression(
                        SyntaxKind.SimpleMemberAccessExpression,
                        globalNamespace.GetTypeNameSyntax(WellKnownName.PlatformDetection),
                        IdentifierName("Is" + flag)
                    );

                    condition = condition is null
                                    ? newCondition
                                    : BinaryExpression(SyntaxKind.LogicalAndExpression, condition, newCondition);
                }

                ifStatements.Add(
                    condition is null
                        ? (IfStatementSyntax) platformStatement
                        : IfStatement(condition, platformStatement)
                );
            }

            IfStatementSyntax platformDetectionIfStatement = null;

            for (var i = ifStatements.Count - 1; i >= 0; i--)
            {
                platformDetectionIfStatement = ifStatements[i].WithElse(
                    platformDetectionIfStatement is null
                        ? ElseClause(ThrowPlatformNotSupportedStatement)
                        : ElseClause(platformDetectionIfStatement)
                );
            }

            return platformDetectionIfStatement;
        }