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chore: refactor MapperGenerator to cache outputs.
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,27 @@ | ||
using Microsoft.CodeAnalysis.CSharp.Syntax; | ||
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namespace Riok.Mapperly; | ||
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public readonly struct MapperNode : IEquatable<MapperNode> | ||
{ | ||
public MapperNode(CompilationUnitSyntax body, string fileName) | ||
{ | ||
Body = body; | ||
FileName = fileName; | ||
} | ||
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public CompilationUnitSyntax Body { get; } | ||
public string FileName { get; } | ||
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public bool Equals(MapperNode other) => Body.IsEquivalentTo(other.Body) && FileName == other.FileName; | ||
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public override bool Equals(object? obj) => obj is MapperNode other && Equals(other); | ||
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public override int GetHashCode() | ||
{ | ||
unchecked | ||
{ | ||
return (Body.GetHashCode() * 397) ^ FileName.GetHashCode(); | ||
} | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,50 @@ | ||
using System.Collections.Immutable; | ||
using Microsoft.CodeAnalysis; | ||
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namespace Riok.Mapperly; | ||
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public readonly struct MapperResults : IEquatable<MapperResults> | ||
{ | ||
public static readonly MapperResults Empty = new(ImmutableArray<MapperNode>.Empty, ImmutableArray<Diagnostic>.Empty); | ||
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public MapperResults(ImmutableArray<MapperNode> mappers, ImmutableArray<Diagnostic> diagnostics) | ||
{ | ||
Mappers = mappers; | ||
Diagnostics = diagnostics; | ||
} | ||
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public ImmutableArray<MapperNode> Mappers { get; } | ||
public ImmutableArray<Diagnostic> Diagnostics { get; } | ||
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public bool Equals(MapperResults other) | ||
{ | ||
return Mappers.SequenceEqual(other.Mappers) && Diagnostics.SequenceEqual(other.Diagnostics); | ||
} | ||
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public override bool Equals(object? obj) => obj is MapperResults other && Equals(other); | ||
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public override int GetHashCode() | ||
{ | ||
unchecked | ||
{ | ||
var hash = 0; | ||
foreach (var mapper in Mappers) | ||
{ | ||
hash = Combine(hash, mapper.GetHashCode()); | ||
} | ||
foreach (var diagnostic in Diagnostics) | ||
{ | ||
hash = Combine(hash, diagnostic.GetHashCode()); | ||
} | ||
return hash; | ||
} | ||
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static int Combine(int h1, int h2) | ||
{ | ||
// RyuJIT optimizes this to use the ROL instruction | ||
// Related GitHub pull request: https://github.com/dotnet/coreclr/pull/1830 | ||
uint rol5 = ((uint)h1 << 5) | ((uint)h1 >> 27); | ||
return ((int)rol5 + h1) ^ h2; | ||
} | ||
} | ||
} |
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