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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Features;
namespace Microsoft.AspNetCore.Routing.Matching;
// A test-only matcher implementation - used as a baseline for simpler
// perf tests. The idea with this matcher is that we can cheat on the requirements
// to establish a lower bound for perf comparisons.
internal sealed class TrivialMatcher : Matcher
{
private readonly RouteEndpoint _endpoint;
private readonly Candidate[] _candidates;
public TrivialMatcher(RouteEndpoint endpoint)
{
_endpoint = endpoint;
_candidates = new Candidate[] { new Candidate(endpoint), };
}
public sealed override Task MatchAsync(HttpContext httpContext)
{
if (httpContext == null)
{
throw new ArgumentNullException(nameof(httpContext));
}
var path = httpContext.Request.Path.Value;
if (string.Equals(_endpoint.RoutePattern.RawText, path, StringComparison.OrdinalIgnoreCase))
{
httpContext.SetEndpoint(_endpoint);
httpContext.Request.RouteValues = new RouteValueDictionary();
}
return Task.CompletedTask;
}
// This is here so this can be tested alongside DFA matcher.
internal Candidate[] FindCandidateSet(string path, ReadOnlySpan<PathSegment> segments)
{
if (string.Equals(_endpoint.RoutePattern.RawText, path, StringComparison.OrdinalIgnoreCase))
{
return _candidates;
}
return Array.Empty<Candidate>();
}
}
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