microsoft/healthcare-shared-components
Publicmirrored from https://github.com/microsoft/healthcare-shared-componentsAvailable
tools/Microsoft.Health.Extensions.BuildTimeCodeGenerator/Sql/MemberSorting.cs
51lines · modecode
| 1 | // ------------------------------------------------------------------------------------------------- |
| 2 | // Copyright (c) Microsoft Corporation. All rights reserved. |
| 3 | // Licensed under the MIT License (MIT). See LICENSE in the repo root for license information. |
| 4 | // ------------------------------------------------------------------------------------------------- |
| 5 | |
| 6 | using System; |
| 7 | using System.Collections.Generic; |
| 8 | using System.Linq; |
| 9 | using Microsoft.CodeAnalysis; |
| 10 | using Microsoft.CodeAnalysis.CSharp.Syntax; |
| 11 | |
| 12 | namespace Microsoft.Health.Extensions.BuildTimeCodeGenerator.Sql |
| 13 | { |
| 14 | public static class MemberSorting |
| 15 | { |
| 16 | private const string SortKey = "SortKey"; |
| 17 | |
| 18 | public static readonly Comparer<MemberDeclarationSyntax> Comparer = Comparer<MemberDeclarationSyntax>.Create(CompareMembers); |
| 19 | |
| 20 | private static int CompareMembers(MemberDeclarationSyntax a, MemberDeclarationSyntax b) |
| 21 | { |
| 22 | string[] GetSortKey(MemberDeclarationSyntax member) |
| 23 | { |
| 24 | return member.GetAnnotations(SortKey).SingleOrDefault()?.Data.Split(':') ?? throw new InvalidOperationException("Members are required to have a sort key"); |
| 25 | } |
| 26 | |
| 27 | if (a == b) |
| 28 | { |
| 29 | return 0; |
| 30 | } |
| 31 | |
| 32 | if (a == null) |
| 33 | { |
| 34 | return -1; |
| 35 | } |
| 36 | |
| 37 | if (b == null) |
| 38 | { |
| 39 | return 1; |
| 40 | } |
| 41 | |
| 42 | return GetSortKey(a).Zip(GetSortKey(b), (ta, tb) => (tokenA: ta, tokenB: tb)).Aggregate(0, (acc, curr) => acc != 0 ? acc : string.CompareOrdinal(curr.tokenA, curr.tokenB)); |
| 43 | } |
| 44 | |
| 45 | public static TMember AddSortingKey<TMember>(this TMember member, SqlVisitor visitor, string name) |
| 46 | where TMember : MemberDeclarationSyntax |
| 47 | { |
| 48 | return member.WithAdditionalAnnotations(new SyntaxAnnotation(SortKey, $"{(member is FieldDeclarationSyntax ? 0 : 1)}:{visitor.ArtifactSortOder}:{name}")); |
| 49 | } |
| 50 | } |
| 51 | } |
| 52 | |