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Continue using HashCodeCombiner in Razor.Language (dotnet#37725)
* Continue using HashCodeCombiner in Razor.Language References by Razor.Language end up getting loaded in VS and the source generator * Use HashCodeCombiner.Start
1 parent de9923e commit adb591e

33 files changed

+249
-88
lines changed

‎src/Razor/Microsoft.AspNetCore.Razor.Internal.SourceGenerator.Transport/Microsoft.AspNetCore.Razor.Internal.SourceGenerator.Transport.csproj‎

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@@ -30,7 +30,6 @@
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<ItemGroup>
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<Reference Include="Microsoft.CodeAnalysis.Common" />
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<Reference Include="Microsoft.CodeAnalysis.CSharp" />
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<Reference Include="Microsoft.Bcl.HashCode" />
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</ItemGroup>
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</Project>

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/AllowedChildTagDescriptorComparer.cs‎

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@@ -3,6 +3,7 @@
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using System;
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using System.Collections.Generic;
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using Microsoft.Extensions.Internal;
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namespace Microsoft.AspNetCore.Razor.Language
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{
@@ -41,10 +42,10 @@ public virtual bool Equals(
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/// <inheritdoc />
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public virtual int GetHashCode(AllowedChildTagDescriptor descriptor)
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{
44-
var hash = new HashCode();
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hash.Add(descriptor.Name ?? string.Empty, StringComparer.Ordinal);
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var hash = HashCodeCombiner.Start();
46+
hash.Add(descriptor.Name, StringComparer.Ordinal);
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47-
return hash.ToHashCode();
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return hash.CombinedHash;
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}
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}
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}

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/BoundAttributeDescriptorComparer.cs‎

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@@ -4,6 +4,7 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Microsoft.Extensions.Internal;
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namespace Microsoft.AspNetCore.Razor.Language
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{
@@ -55,12 +56,12 @@ public int GetHashCode(BoundAttributeDescriptor descriptor)
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throw new ArgumentNullException(nameof(descriptor));
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}
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58-
var hash = new HashCode();
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hash.Add(descriptor.Kind ?? string.Empty, StringComparer.Ordinal);
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hash.Add(descriptor.Name ?? string.Empty, StringComparer.Ordinal);
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var hash = HashCodeCombiner.Start();
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hash.Add(descriptor.Kind, StringComparer.Ordinal);
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hash.Add(descriptor.Name, StringComparer.Ordinal);
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hash.Add(descriptor.IsEditorRequired);
62-
hash.Add(descriptor.TypeName ?? string.Empty, StringComparer.Ordinal);
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hash.Add(descriptor.Documentation ?? string.Empty, StringComparer.Ordinal);
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hash.Add(descriptor.TypeName, StringComparer.Ordinal);
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hash.Add(descriptor.Documentation, StringComparer.Ordinal);
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if (descriptor.BoundAttributeParameters != null)
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{
@@ -88,7 +89,7 @@ public int GetHashCode(BoundAttributeDescriptor descriptor)
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}
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}
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return hash.ToHashCode();
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return hash.CombinedHash;
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}
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}
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}

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/BoundAttributeParameterDescriptorComparer.cs‎

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@@ -4,6 +4,7 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Microsoft.Extensions.Internal;
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namespace Microsoft.AspNetCore.Razor.Language
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{
@@ -49,13 +50,13 @@ public virtual int GetHashCode(BoundAttributeParameterDescriptor descriptor)
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throw new ArgumentNullException(nameof(descriptor));
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}
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52-
var hash = new HashCode();
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hash.Add(descriptor.Kind ?? string.Empty, StringComparer.Ordinal);
54-
hash.Add(descriptor.Name ?? string.Empty, StringComparer.Ordinal);
55-
hash.Add(descriptor.TypeName ?? string.Empty, StringComparer.Ordinal);
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var hash = HashCodeCombiner.Start();
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hash.Add(descriptor.Kind, StringComparer.Ordinal);
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hash.Add(descriptor.Name, StringComparer.Ordinal);
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hash.Add(descriptor.TypeName, StringComparer.Ordinal);
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hash.Add(descriptor.Metadata?.Count);
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58-
return hash.ToHashCode();
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return hash.CombinedHash;
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}
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}
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}

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/CodeGeneration/LinePragma.cs‎

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@@ -3,6 +3,7 @@
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using System;
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using System.Globalization;
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using Microsoft.Extensions.Internal;
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namespace Microsoft.AspNetCore.Razor.Language.CodeGeneration
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{
@@ -61,7 +62,11 @@ public bool Equals(LinePragma other)
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public override int GetHashCode()
6364
{
64-
return HashCode.Combine(StartLineIndex, LineCount, FilePath);
65+
var hash = HashCodeCombiner.Start();
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hash.Add(StartLineIndex);
67+
hash.Add(LineCount);
68+
hash.Add(FilePath);
69+
return hash;
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}
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public override string ToString()

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorDiagnostic.cs‎

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@@ -1,7 +1,8 @@
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// Licensed to the .NET Foundation under one or more agreements.
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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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using System;
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using Microsoft.Extensions.Internal;
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67
namespace Microsoft.AspNetCore.Razor.Language
78
{
@@ -68,7 +69,7 @@ public override bool Equals(RazorDiagnostic obj)
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6970
public override int GetHashCode()
7071
{
71-
var hash = new HashCode();
72+
var hash = HashCodeCombiner.Start();
7273
hash.Add(Descriptor.GetHashCode());
7374
hash.Add(Span.GetHashCode());
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@@ -77,7 +78,7 @@ public override int GetHashCode()
7778
hash.Add(Args[i]);
7879
}
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80-
return hash.ToHashCode();
81+
return hash;
8182
}
8283
}
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}

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/DirectiveDescriptorComparer.cs‎

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@@ -4,6 +4,7 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Microsoft.Extensions.Internal;
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89
namespace Microsoft.AspNetCore.Razor.Language
910
{
@@ -38,8 +39,8 @@ public int GetHashCode(DirectiveDescriptor descriptor)
3839
throw new ArgumentNullException(nameof(descriptor));
3940
}
4041

41-
var hash = new HashCode();
42-
hash.Add(descriptor.Directive ?? string.Empty, StringComparer.Ordinal);
42+
var hash = HashCodeCombiner.Start();
43+
hash.Add(descriptor.Directive, StringComparer.Ordinal);
4344
hash.Add(descriptor.Kind);
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4546
if (descriptor.Tokens != null)
@@ -50,7 +51,7 @@ public int GetHashCode(DirectiveDescriptor descriptor)
5051
}
5152
}
5253

53-
return hash.ToHashCode();
54+
return hash.CombinedHash;
5455
}
5556
}
5657
}

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/DirectiveTokenDescriptorComparer.cs‎

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@@ -3,6 +3,7 @@
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using System;
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using System.Collections.Generic;
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using Microsoft.Extensions.Internal;
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78
namespace Microsoft.AspNetCore.Razor.Language
89
{
@@ -33,7 +34,11 @@ public int GetHashCode(DirectiveTokenDescriptor descriptor)
3334
throw new ArgumentNullException(nameof(descriptor));
3435
}
3536

36-
return HashCode.Combine(descriptor.Kind, descriptor.Optional ? 1 : 0);
37+
var hashCodeCombiner = HashCodeCombiner.Start();
38+
hashCodeCombiner.Add(descriptor.Kind);
39+
hashCodeCombiner.Add(descriptor.Optional ? 1 : 0);
40+
41+
return hashCodeCombiner.CombinedHash;
3742
}
3843
}
3944
}

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/HashCodeCombiner.cs‎

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@@ -0,0 +1,59 @@
1+
// Licensed to the .NET Foundation under one or more agreements.
2+
// The .NET Foundation licenses this file to you under the MIT license.
3+
4+
#nullable enable
5+
6+
using System.Collections;
7+
using System.Collections.Generic;
8+
using System.Runtime.CompilerServices;
9+
10+
namespace Microsoft.Extensions.Internal
11+
{
12+
internal struct HashCodeCombiner
13+
{
14+
private long _combinedHash64;
15+
16+
public int CombinedHash
17+
{
18+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
19+
get { return _combinedHash64.GetHashCode(); }
20+
}
21+
22+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
23+
private HashCodeCombiner(long seed)
24+
{
25+
_combinedHash64 = seed;
26+
}
27+
28+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
29+
public static implicit operator int(HashCodeCombiner self)
30+
{
31+
return self.CombinedHash;
32+
}
33+
34+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
35+
public void Add(int i)
36+
{
37+
_combinedHash64 = ((_combinedHash64 << 5) + _combinedHash64) ^ i;
38+
}
39+
40+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
41+
public void Add<T>(T? o)
42+
{
43+
Add(o?.GetHashCode() ?? 0);
44+
}
45+
46+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
47+
public void Add<TValue>(TValue value, IEqualityComparer<TValue> comparer)
48+
{
49+
var hashCode = value != null ? comparer.GetHashCode(value) : 0;
50+
Add(hashCode);
51+
}
52+
53+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
54+
public static HashCodeCombiner Start()
55+
{
56+
return new HashCodeCombiner(0x1505L);
57+
}
58+
}
59+
}

‎src/Razor/Microsoft.AspNetCore.Razor.Language/src/Legacy/AddTagHelperChunkGenerator.cs‎

Lines changed: 7 additions & 6 deletions
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@@ -5,6 +5,7 @@
55
using System.Collections.Generic;
66
using System.Linq;
77
using System.Text;
8+
using Microsoft.Extensions.Internal;
89

910
namespace Microsoft.AspNetCore.Razor.Language.Legacy
1011
{
@@ -49,14 +50,14 @@ public override bool Equals(object obj)
4950
/// <inheritdoc />
5051
public override int GetHashCode()
5152
{
52-
var combiner = new HashCode();
53+
var combiner = HashCodeCombiner.Start();
5354
combiner.Add(base.GetHashCode());
54-
combiner.Add(LookupText ?? string.Empty, StringComparer.Ordinal);
55-
combiner.Add(DirectiveText ?? string.Empty, StringComparer.Ordinal);
56-
combiner.Add(TypePattern ?? string.Empty, StringComparer.Ordinal);
57-
combiner.Add(AssemblyName ?? string.Empty, StringComparer.Ordinal);
55+
combiner.Add(LookupText, StringComparer.Ordinal);
56+
combiner.Add(DirectiveText, StringComparer.Ordinal);
57+
combiner.Add(TypePattern, StringComparer.Ordinal);
58+
combiner.Add(AssemblyName, StringComparer.Ordinal);
5859

59-
return combiner.ToHashCode();
60+
return combiner.CombinedHash;
6061
}
6162

6263
public override string ToString()

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