System.InvalidProgramException for Sorting and comparison function

[bluewingHuang]

I have some samples for sorting and comparison that compile successfully but throw an InvalidProgramException when the compiled function is executed. The expression tree does compile correctly with the .NETs Compile() method.

[Unittest code]
https://github.com/bluewingHuang/FastExpressionCompiler/blob/SortCompileError/CompileTest/SortCompilerTests.cs

[Unittest project ]
https://github.com/bluewingHuang/FastExpressionCompiler/tree/SortCompileError/CompileTest

.NET Version: 6.0
FEC Version: v5.4.0

[bluewingHuang]

@dadhi My original tests are still failing. Is there a problem with how I construct the Expression tree?

[dadhi]

Please open PR and add your specific test alongside the others in 499. Then I can tell.

[bluewingHuang]

@dadhi Because the original tests have many dependencies and complex logic, I don't think they would be willing to merge that much code into the main branch. I added a unit test that might be the cause of the exception. see this pr: #501

[bluewingHuang]

@dadhi When will you release version 5.4.1?

[dadhi]

@bluewingHuang Published. Thanks for contrib!