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Ensure HeaderDictionary store is initialized consistently (#979)

This commit is contained in:
user1336 2017-12-21 17:50:32 +01:00 committed by Chris Ross
parent 150bb3faf4
commit db3c3ba589
1 changed files with 12 additions and 15 deletions
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27
src/Microsoft.AspNetCore.Http/HeaderDictionary.cs
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@ -32,11 +32,19 @@ namespace Microsoft.AspNetCore.Http
public HeaderDictionary(int capacity)
{
Store = new Dictionary<string, StringValues>(capacity, StringComparer.OrdinalIgnoreCase);
EnsureStore(capacity);
}
private Dictionary<string, StringValues> Store { get; set; }
private void EnsureStore(int capacity)
{
if (Store == null)
{
Store = new Dictionary<string, StringValues>(capacity, StringComparer.OrdinalIgnoreCase);
}
}
/// <summary>
/// Get or sets the associated value from the collection as a single string.
/// </summary>
@ -72,11 +80,7 @@ namespace Microsoft.AspNetCore.Http
}
else
{
if (Store == null)
{
Store = new Dictionary<string, StringValues>(1, StringComparer.OrdinalIgnoreCase);
}
EnsureStore(1);
Store[key] = value;
}
}
@ -173,10 +177,7 @@ namespace Microsoft.AspNetCore.Http
throw new ArgumentNullException("The key is null");
}
ThrowIfReadOnly();
if (Store == null)
{
Store = new Dictionary<string, StringValues>(1, StringComparer.OrdinalIgnoreCase);
}
EnsureStore(1);
Store.Add(item.Key, item.Value);
}
@ -192,11 +193,7 @@ namespace Microsoft.AspNetCore.Http
throw new ArgumentNullException(nameof(key));
}
ThrowIfReadOnly();
if (Store == null)
{
Store = new Dictionary<string, StringValues>(1);
}
EnsureStore(1);
Store.Add(key, value);
}