Equality comparison between nullable and null inside Any produces incorrect compiled expression #341
Description
Hi,
First of all, thank you for your work in this very promising library.
We have lots of expressions, and currently experimenting with whether we can utilize this library or not. We noticed, that several unit tests are failing, and nailed it down to the issue given in the title.
Please see the following failing test,.
[TestClass]
public class CompiledExpressionIssue
{
[TestMethod]
public void Works_WithCompile()
{
// Arrange
Expression<Func<Test, bool>> expression = t => t.A.Any(e => e.Value != null);
var compiled = expression.Compile();
var instance = new Test()
{
A = new[]
{
new Test2() { Value = 0 },
},
};
// Act
var result = compiled(instance);
// Assert
result.Should().BeTrue();
}
[TestMethod]
public void Fails_WithCompileFast()
{
// Arrange
Expression<Func<Test, bool>> expression = t => t.A.Any(e => e.Value != null);
var compiled = expression.CompileFast(true, CompilerFlags.EnableDelegateDebugInfo);
var di = compiled.Target as IDelegateDebugInfo;
var instance = new Test()
{
A = new[]
{
new Test2() { Value = 0 },
},
};
// Act
var result = compiled(instance);
// Assert
result.Should().BeTrue();
}
public class Test
{
public Test2[] A { get; set; }
}
public class Test2
{
public decimal? Value { get; set; }
}
}