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Remove extra call to PropertyInfo.GetValue(object) #60415

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merged 1 commit into from
Oct 14, 2021
Merged

Remove extra call to PropertyInfo.GetValue(object) #60415

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10 changes: 4 additions & 6 deletions src/libraries/Microsoft.Extensions.Configuration.Binder/src/ConfigurationBinder.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -248,19 +248,17 @@ private static void BindProperty(PropertyInfo property, object instance, IConfig
return;
}

object propertyValue = property.GetValue(instance);
bool hasSetter = property.SetMethod != null && (property.SetMethod.IsPublic || options.BindNonPublicProperties);

if (propertyValue == null && !hasSetter)
if (!hasSetter)
{
// Property doesn't have a value and we cannot set it so there is no
// point in going further down the graph
// The property cannot be set so there is no point going further
return;
}

propertyValue = GetPropertyValue(property, instance, config, options);
object propertyValue = GetPropertyValue(property, instance, config, options);

if (propertyValue != null && hasSetter)
if (propertyValue != null)
{
property.SetValue(instance, propertyValue);
}
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19 changes: 19 additions & 0 deletions src/libraries/Microsoft.Extensions.Configuration.Binder/tests/ConfigurationBinderTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,11 @@ public class ByteArrayOptions
public byte[] MyByteArray { get; set; }
}

public class GetterOnlyOptions
{
public string MyString => throw new NotImplementedException();
}

[Fact]
public void CanBindIConfigurationSection()
{
Expand Down Expand Up @@ -343,6 +348,20 @@ public void ThrowsIfPropertyInConfigMissingInNestedModel()
Assert.Equal(expectedMessage, ex.Message);
}

[Fact]
public void DoesNotExecuteGetterIfNoSetter()
{
var dic = new Dictionary<string, string>
{
{"MyString", "hello world"}
};
var configurationBuilder = new ConfigurationBuilder();
configurationBuilder.AddInMemoryCollection(dic);
var config = configurationBuilder.Build();

var _ = config.Get<GetterOnlyOptions>();
}

[Fact]
public void GetDefaultsWhenDataDoesNotExist()
{
Expand Down