GetMethodBasedCoercionOperator()

static UnaryExpression System.Linq.Expressions.Expression< TDelegate >.GetMethodBasedCoercionOperator ( ExpressionType unaryType, Expression< TDelegate > operand, Type convertToType, MethodInfo method )

inlinestaticprivateinherited

Definition at line 5095 of file Expression.cs.

    {
        ValidateOperator(method);
        ParameterInfo[] parametersCached = method.GetParametersCached();
        if (parametersCached.Length != 1)
        {
            throw Error.IncorrectNumberOfMethodCallArguments(method, "method");
        }
        if (ParameterIsAssignable(parametersCached[0], operand.Type) && TypeUtils.AreEquivalent(method.ReturnType, convertToType))
        {
            return new UnaryExpression(unaryType, operand, method.ReturnType, method);
        }
        if ((operand.Type.IsNullableType() || convertToType.IsNullableType()) && ParameterIsAssignable(parametersCached[0], operand.Type.GetNonNullableType()) && (TypeUtils.AreEquivalent(method.ReturnType, convertToType.GetNonNullableType()) || TypeUtils.AreEquivalent(method.ReturnType, convertToType)))
        {
            return new UnaryExpression(unaryType, operand, convertToType, method);
        }
        throw Error.OperandTypesDoNotMatchParameters(unaryType, method.Name);
    }

References System.Dynamic.Utils.TypeUtils.AreEquivalent(), System.Linq.Expressions.Error.IncorrectNumberOfMethodCallArguments(), System.Linq.Expressions.Error.OperandTypesDoNotMatchParameters(), System.Linq.Expressions.Expression< TDelegate >.ParameterIsAssignable(), and System.Linq.Expressions.Expression< TDelegate >.ValidateOperator().

Referenced by System.Linq.Expressions.Expression< TDelegate >.Convert(), and System.Linq.Expressions.Expression< TDelegate >.ConvertChecked().