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Description
When using Fody NullGuard, the following projection fails:
dbContext.People
.Select(p => new
{
// Address is a related entity, Label is [Computed]
AddressLabel = p.Address.Label,
})
.Decompile()
.ToList();With the error
Unhandled Exception: System.ArgumentException: Argument types do not match
at System.Linq.Expressions.Expression.Condition(Expression test, Expression ifTrue, Expression ifFalse)
at DelegateDecompiler.Address.Merge(Expression test, Address address1, Address address2, IDictionary`2 map)
at DelegateDecompiler.Processor.ProcessorState.Merge(Expression test, ProcessorState leftState, ProcessorState rightState)
at DelegateDecompiler.Processor.<>c__DisplayClass13_0.<ConditionalBranch>b__0()
at DelegateDecompiler.Processor.Process()
at DelegateDecompiler.Processor.Process(VariableInfo[] locals, IList`1 args, Instruction instruction, Type returnType)
at DelegateDecompiler.MethodBodyDecompiler.DecompileConcrete(MethodInfo method, IList`1 args)
at DelegateDecompiler.MethodBodyDecompiler.Decompile(MethodInfo method, Type declaringType)
at DelegateDecompiler.DecompileExtensions.<>c__DisplayClass6_0.<.cctor>b__1()
at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
at System.Lazy`1.ExecutionAndPublication(LazyHelper executionAndPublication, Boolean useDefaultConstructor)
at System.Lazy`1.CreateValue()
at DelegateDecompiler.DecompileExtensions.Decompile(MethodInfo method, Type declaringType)
at DelegateDecompiler.DecompileExpressionVisitor.Decompile(MethodInfo method, Expression instance, IList`1 arguments)
at DelegateDecompiler.DecompileExpressionVisitor.VisitMember(MemberExpression node)
at System.Linq.Expressions.MemberExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at System.Dynamic.Utils.ExpressionVisitorUtils.VisitArguments(ExpressionVisitor visitor, IArgumentProvider nodes)
at System.Linq.Expressions.ExpressionVisitor.VisitNew(NewExpression node)
at System.Linq.Expressions.NewExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at System.Linq.Expressions.ExpressionVisitor.VisitLambda[T](Expression`1 node)
at System.Linq.Expressions.Expression`1.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at System.Linq.Expressions.ExpressionVisitor.VisitUnary(UnaryExpression node)
at System.Linq.Expressions.UnaryExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at System.Dynamic.Utils.ExpressionVisitorUtils.VisitArguments(ExpressionVisitor visitor, IArgumentProvider nodes)
at System.Linq.Expressions.ExpressionVisitor.VisitMethodCall(MethodCallExpression node)
at DelegateDecompiler.DecompileExpressionVisitor.VisitMethodCall(MethodCallExpression node)
at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at DelegateDecompiler.DecompileExpressionVisitor.Decompile(Expression expression)
at DelegateDecompiler.DecompiledQueryProvider.CreateQuery[TElement](Expression expression)
at DelegateDecompiler.DecompileExtensions.Decompile[T](IQueryable`1 self)
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