Skip to content

Avoid logging unsupported alternative for complex type binding #39353

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jan 19, 2022

Conversation

captainsafia
Copy link
Member

Closes #21916.

@ghost ghost added the area-mvc Includes: MVC, Actions and Controllers, Localization, CORS, most templates label Jan 6, 2022
@captainsafia captainsafia force-pushed the safia/complex-type-model branch from 4df285f to e7dc09e Compare January 6, 2022 21:35
@TanayParikh
Copy link
Contributor

/azp run

@TanayParikh
Copy link
Contributor

Needs a full re-run given #39361.

@azure-pipelines
Copy link

Azure Pipelines successfully started running 3 pipeline(s).

@captainsafia captainsafia requested a review from pranavkm January 7, 2022 02:36
@captainsafia captainsafia marked this pull request as ready for review January 7, 2022 02:36
@captainsafia captainsafia requested a review from javiercn as a code owner January 7, 2022 02:36
@@ -588,11 +588,8 @@ public void CreateModel_ForStructModelType_AsProperty_ThrowsException()
string.Format(
CultureInfo.CurrentCulture,
"Could not create an instance of type '{0}'. Model bound complex types must not be abstract or " +
"value types and must have a parameterless constructor. Alternatively, set the '{1}' property to" +
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Isn't this message still valid / correct, isn't it? Should we be changing it for this case?

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Hmmmm. My understanding was we wanted to stop logging this recommendation for any complex type where we couldn't reliably examine the constructor to verify that they were initializing the property inside it?

Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

The way I had thought this would work was that we would not show this message for top-level objects. We would still show this for arbitrary properties that we couldn't initialize because it is valid for users to initialize it and for us to bind properties on it. That said, this one is a struct so it might have unique characteristics.

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I think this exception still makes sense. For a set of types like:

private class Location
    {
        public PointStruct Point { get; set; }
    }

    private readonly struct PointStruct
    {
        public PointStruct(double x, double y)
        {
            X = x;
            Y = y;
        }

        public double X { get; }
        public double Y { get; }
    }

We can't examine the Location constructor to check if Point is initialized so it doesn't make sense to log that behavior?

Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Ok, I re-read the message and it works out alrigh - it says you cannot model bind a value type. The part about the ctor is entirely irrelevant here. This seems alright enough, let's get this in.

@@ -588,11 +588,8 @@ public void CreateModel_ForStructModelType_AsProperty_ThrowsException()
string.Format(
CultureInfo.CurrentCulture,
"Could not create an instance of type '{0}'. Model bound complex types must not be abstract or " +
"value types and must have a parameterless constructor. Alternatively, set the '{1}' property to" +
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Ok, I re-read the message and it works out alrigh - it says you cannot model bind a value type. The part about the ctor is entirely irrelevant here. This seems alright enough, let's get this in.

@captainsafia captainsafia merged commit 628ba6a into dotnet:main Jan 19, 2022
@ghost ghost added this to the 7.0-preview1 milestone Jan 19, 2022
ShreyasJejurkar pushed a commit to ShreyasJejurkar/aspnetcore that referenced this pull request Jan 22, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
area-mvc Includes: MVC, Actions and Controllers, Localization, CORS, most templates
Projects
None yet
3 participants