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[release/8.0] Fix Options Source Gen RangeAttribute Thread Safety #97110

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Jan 17, 2024
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83 changes: 45 additions & 38 deletions src/libraries/Microsoft.Extensions.Options/gen/Emitter.cs
Original file line number Diff line number Diff line change
Expand Up @@ -382,26 +382,26 @@ public void EmitRangeAttribute(string modifier, string prefix, string className,

string initializationString = emitTimeSpanSupport ?
"""
if (OperandType == typeof(global::System.TimeSpan))
{
if (!global::System.TimeSpan.TryParse((string)Minimum, culture, out global::System.TimeSpan timeSpanMinimum) ||
!global::System.TimeSpan.TryParse((string)Maximum, culture, out global::System.TimeSpan timeSpanMaximum))
{
throw new global::System.InvalidOperationException(c_minMaxError);
}
Minimum = timeSpanMinimum;
Maximum = timeSpanMaximum;
}
else
{
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
}
if (OperandType == typeof(global::System.TimeSpan))
{
if (!global::System.TimeSpan.TryParse((string)Minimum, culture, out global::System.TimeSpan timeSpanMinimum) ||
!global::System.TimeSpan.TryParse((string)Maximum, culture, out global::System.TimeSpan timeSpanMaximum))
{
throw new global::System.InvalidOperationException(MinMaxError);
}
Minimum = timeSpanMinimum;
Maximum = timeSpanMaximum;
}
else
{
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
}
"""
:
"""
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
""";

string convertValue = emitTimeSpanSupport ?
Expand Down Expand Up @@ -470,7 +470,7 @@ public void EmitRangeAttribute(string modifier, string prefix, string className,
public {{qualifiedClassName}}(global::System.Type type, string minimum, string maximum) : base()
{
OperandType = type;
NeedToConvertMinMax = true;
_needToConvertMinMax = true;
Minimum = minimum;
Maximum = maximum;
}
Expand All @@ -483,33 +483,40 @@ public void EmitRangeAttribute(string modifier, string prefix, string className,
public bool ConvertValueInInvariantCulture { get; set; }
public override string FormatErrorMessage(string name) =>
string.Format(global::System.Globalization.CultureInfo.CurrentCulture, GetValidationErrorMessage(), name, Minimum, Maximum);
private bool NeedToConvertMinMax { get; }
private bool Initialized { get; set; }
private const string c_minMaxError = "The minimum and maximum values must be set to valid values.";
private readonly bool _needToConvertMinMax;
private volatile bool _initialized;
private readonly object _lock = new();
private const string MinMaxError = "The minimum and maximum values must be set to valid values.";

public override bool IsValid(object? value)
{
if (!Initialized)
if (!_initialized)
{
if (Minimum is null || Maximum is null)
{
throw new global::System.InvalidOperationException(c_minMaxError);
}
if (NeedToConvertMinMax)
lock (_lock)
{
System.Globalization.CultureInfo culture = ParseLimitsInInvariantCulture ? global::System.Globalization.CultureInfo.InvariantCulture : global::System.Globalization.CultureInfo.CurrentCulture;
if (!_initialized)
{
if (Minimum is null || Maximum is null)
{
throw new global::System.InvalidOperationException(MinMaxError);
}
if (_needToConvertMinMax)
{
System.Globalization.CultureInfo culture = ParseLimitsInInvariantCulture ? global::System.Globalization.CultureInfo.InvariantCulture : global::System.Globalization.CultureInfo.CurrentCulture;
{{initializationString}}
}
int cmp = ((global::System.IComparable)Minimum).CompareTo((global::System.IComparable)Maximum);
if (cmp > 0)
{
throw new global::System.InvalidOperationException("The maximum value '{Maximum}' must be greater than or equal to the minimum value '{Minimum}'.");
}
else if (cmp == 0 && (MinimumIsExclusive || MaximumIsExclusive))
{
throw new global::System.InvalidOperationException("Cannot use exclusive bounds when the maximum value is equal to the minimum value.");
}
_initialized = true;
}
}
int cmp = ((global::System.IComparable)Minimum).CompareTo((global::System.IComparable)Maximum);
if (cmp > 0)
{
throw new global::System.InvalidOperationException("The maximum value '{Maximum}' must be greater than or equal to the minimum value '{Minimum}'.");
}
else if (cmp == 0 && (MinimumIsExclusive || MaximumIsExclusive))
{
throw new global::System.InvalidOperationException("Cannot use exclusive bounds when the maximum value is equal to the minimum value.");
}
Initialized = true;
}

if (value is null or string { Length: 0 })
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,8 @@
<TargetFrameworks>$(NetCoreAppCurrent);$(NetCoreAppPrevious);$(NetCoreAppMinimum);netstandard2.1;netstandard2.0;$(NetFrameworkMinimum)</TargetFrameworks>
<EnableDefaultItems>true</EnableDefaultItems>
<IsPackable>true</IsPackable>
<GeneratePackageOnBuild>false</GeneratePackageOnBuild>
<ServicingVersion>1</ServicingVersion>
<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
<ServicingVersion>2</ServicingVersion>
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LGTM 👌

<PackageDescription>Provides a strongly typed way of specifying and accessing settings using dependency injection.</PackageDescription>
</PropertyGroup>

Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,7 @@ public __SourceGen__RangeAttribute(double minimum, double maximum) : base()
public __SourceGen__RangeAttribute(global::System.Type type, string minimum, string maximum) : base()
{
OperandType = type;
NeedToConvertMinMax = true;
_needToConvertMinMax = true;
Minimum = minimum;
Maximum = maximum;
}
Expand All @@ -97,34 +97,41 @@ public __SourceGen__RangeAttribute(global::System.Type type, string minimum, str
public bool ConvertValueInInvariantCulture { get; set; }
public override string FormatErrorMessage(string name) =>
string.Format(global::System.Globalization.CultureInfo.CurrentCulture, GetValidationErrorMessage(), name, Minimum, Maximum);
private bool NeedToConvertMinMax { get; }
private bool Initialized { get; set; }
private const string c_minMaxError = "The minimum and maximum values must be set to valid values.";
private readonly bool _needToConvertMinMax;
private volatile bool _initialized;
private readonly object _lock = new();
private const string MinMaxError = "The minimum and maximum values must be set to valid values.";

public override bool IsValid(object? value)
{
if (!Initialized)
if (!_initialized)
{
if (Minimum is null || Maximum is null)
lock (_lock)
{
throw new global::System.InvalidOperationException(c_minMaxError);
if (!_initialized)
{
if (Minimum is null || Maximum is null)
{
throw new global::System.InvalidOperationException(MinMaxError);
}
if (_needToConvertMinMax)
{
System.Globalization.CultureInfo culture = ParseLimitsInInvariantCulture ? global::System.Globalization.CultureInfo.InvariantCulture : global::System.Globalization.CultureInfo.CurrentCulture;
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
}
int cmp = ((global::System.IComparable)Minimum).CompareTo((global::System.IComparable)Maximum);
if (cmp > 0)
{
throw new global::System.InvalidOperationException("The maximum value '{Maximum}' must be greater than or equal to the minimum value '{Minimum}'.");
}
else if (cmp == 0 && (MinimumIsExclusive || MaximumIsExclusive))
{
throw new global::System.InvalidOperationException("Cannot use exclusive bounds when the maximum value is equal to the minimum value.");
}
_initialized = true;
}
}
if (NeedToConvertMinMax)
{
System.Globalization.CultureInfo culture = ParseLimitsInInvariantCulture ? global::System.Globalization.CultureInfo.InvariantCulture : global::System.Globalization.CultureInfo.CurrentCulture;
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
}
int cmp = ((global::System.IComparable)Minimum).CompareTo((global::System.IComparable)Maximum);
if (cmp > 0)
{
throw new global::System.InvalidOperationException("The maximum value '{Maximum}' must be greater than or equal to the minimum value '{Minimum}'.");
}
else if (cmp == 0 && (MinimumIsExclusive || MaximumIsExclusive))
{
throw new global::System.InvalidOperationException("Cannot use exclusive bounds when the maximum value is equal to the minimum value.");
}
Initialized = true;
}

if (value is null or string { Length: 0 })
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,7 @@ public __SourceGen__RangeAttribute(double minimum, double maximum) : base()
public __SourceGen__RangeAttribute(global::System.Type type, string minimum, string maximum) : base()
{
OperandType = type;
NeedToConvertMinMax = true;
_needToConvertMinMax = true;
Minimum = minimum;
Maximum = maximum;
}
Expand All @@ -95,34 +95,41 @@ public __SourceGen__RangeAttribute(global::System.Type type, string minimum, str
public bool ConvertValueInInvariantCulture { get; set; }
public override string FormatErrorMessage(string name) =>
string.Format(global::System.Globalization.CultureInfo.CurrentCulture, GetValidationErrorMessage(), name, Minimum, Maximum);
private bool NeedToConvertMinMax { get; }
private bool Initialized { get; set; }
private const string c_minMaxError = "The minimum and maximum values must be set to valid values.";
private readonly bool _needToConvertMinMax;
private volatile bool _initialized;
private readonly object _lock = new();
private const string MinMaxError = "The minimum and maximum values must be set to valid values.";

public override bool IsValid(object? value)
{
if (!Initialized)
if (!_initialized)
{
if (Minimum is null || Maximum is null)
lock (_lock)
{
throw new global::System.InvalidOperationException(c_minMaxError);
if (!_initialized)
{
if (Minimum is null || Maximum is null)
{
throw new global::System.InvalidOperationException(MinMaxError);
}
if (_needToConvertMinMax)
{
System.Globalization.CultureInfo culture = ParseLimitsInInvariantCulture ? global::System.Globalization.CultureInfo.InvariantCulture : global::System.Globalization.CultureInfo.CurrentCulture;
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(MinMaxError);
}
int cmp = ((global::System.IComparable)Minimum).CompareTo((global::System.IComparable)Maximum);
if (cmp > 0)
{
throw new global::System.InvalidOperationException("The maximum value '{Maximum}' must be greater than or equal to the minimum value '{Minimum}'.");
}
else if (cmp == 0 && (MinimumIsExclusive || MaximumIsExclusive))
{
throw new global::System.InvalidOperationException("Cannot use exclusive bounds when the maximum value is equal to the minimum value.");
}
_initialized = true;
}
}
if (NeedToConvertMinMax)
{
System.Globalization.CultureInfo culture = ParseLimitsInInvariantCulture ? global::System.Globalization.CultureInfo.InvariantCulture : global::System.Globalization.CultureInfo.CurrentCulture;
Minimum = ConvertValue(Minimum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
Maximum = ConvertValue(Maximum, culture) ?? throw new global::System.InvalidOperationException(c_minMaxError);
}
int cmp = ((global::System.IComparable)Minimum).CompareTo((global::System.IComparable)Maximum);
if (cmp > 0)
{
throw new global::System.InvalidOperationException("The maximum value '{Maximum}' must be greater than or equal to the minimum value '{Minimum}'.");
}
else if (cmp == 0 && (MinimumIsExclusive || MaximumIsExclusive))
{
throw new global::System.InvalidOperationException("Cannot use exclusive bounds when the maximum value is equal to the minimum value.");
}
Initialized = true;
}

if (value is null or string { Length: 0 })
Expand Down