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Imported Upstream version 4.3.2.467

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Former-commit-id: 9c2cb47f45fa221e661ab616387c9cda183f283d
This commit is contained in:
Xamarin Public Jenkins
2016-02-22 11:00:01 -05:00
parent f302175246
commit f3e3aab35a
4097 changed files with 122406 additions and 82300 deletions
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30
external/referencesource/mscorlib/system/nullable.cs vendored
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@@ -23,66 +23,64 @@ namespace System
// at all (since T may not). Do NOT add any interfaces to Nullable!
//
[Serializable]
[System.Runtime.Versioning.NonVersionable] // This only applies to field layout
public struct Nullable<T> where T : struct
{
private bool hasValue;
internal T value;
#if !FEATURE_CORECLR
[TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
#endif
internal T value;
[System.Runtime.Versioning.NonVersionable]
public Nullable(T value) {
this.value = value;
this.hasValue = true;
}
public bool HasValue {
[System.Runtime.Versioning.NonVersionable]
get {
return hasValue;
}
}
public T Value {
#if !FEATURE_CORECLR
[TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
#endif
get {
if (!HasValue) {
if (!hasValue) {
ThrowHelper.ThrowInvalidOperationException(ExceptionResource.InvalidOperation_NoValue);
}
return value;
}
}
#if !FEATURE_CORECLR
[TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
#endif
[System.Runtime.Versioning.NonVersionable]
public T GetValueOrDefault() {
return value;
}
[System.Runtime.Versioning.NonVersionable]
public T GetValueOrDefault(T defaultValue) {
return HasValue ? value : defaultValue;
return hasValue ? value : defaultValue;
}
public override bool Equals(object other) {
if (!HasValue) return other == null;
if (!hasValue) return other == null;
if (other == null) return false;
return value.Equals(other);
}
public override int GetHashCode() {
return HasValue ? value.GetHashCode() : 0;
return hasValue ? value.GetHashCode() : 0;
}
public override string ToString() {
return HasValue ? value.ToString() : "";
return hasValue ? value.ToString() : "";
}
[System.Runtime.Versioning.NonVersionable]
public static implicit operator Nullable<T>(T value) {
return new Nullable<T>(value);
}
[System.Runtime.Versioning.NonVersionable]
public static explicit operator T(Nullable<T> value) {
return value.Value;
}