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Getting nowhere with the ExtJs extension (https://forums.websharper.com/topic/91000) I tried to build my own. I created a new project "ExtJs"with template 'WebSharper 4 Extension" with source below. After changing FSharp.Core to 4.7.2 it compiled (the 5.0.0 out of the box failed).

I set up a reference to the "ExtJs" project in my main project. However I can't see any of the stubs. The namespace contains 'Definition' and 'Extension' as if this were a normal project with no evidence of any special WIG step having done anything.

The WIG documentation says that the 'project file contains the line required for the WIG build task to run.

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<WebSharperProject>InterfaceGenerator</WebSharperProject>'

I can't see this in ExtJs.fsproj at all. I manually inserted it but this has no effect. What is going wrong?

ExtJs.fsproj

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<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>netstandard2.0</TargetFramework>
	<WebSharperProject>Extension</WebSharperProject>                      <--- I inserted this line
  </PropertyGroup>

  <ItemGroup>
    <Compile Include="Config.fs" />
    <Compile Include="Main.fs" />
    <None Include="wsconfig.json" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="WebSharper" Version="4.7.3.446" />    
    <PackageReference Include="WebSharper.FSharp" Version="4.7.3.446" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Update="FSharp.Core" Version="4.7.2" />
  </ItemGroup>

</Project>

ExtJs/Main.fs

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namespace ExtJs

open WebSharper
open WebSharper.JavaScript
open WebSharper.InterfaceGenerator

module Definition =

    let I1 =
        Interface "I1"
        |+> [
                "test1" => T<string> ^-> T<string>
            ]

    let I2 =
        Generic -- fun t1 t2 ->
            Interface "I2"
            |+> [
                    Generic - fun m1 -> "foo" => m1 * t1 ^-> t2
                ]

    let Ext =
        Class "Ext"
        |+> Instance [
                "create" => (T<obj> ^-> T<obj>)
                "create" => (T<string> * T<obj> ^-> T<obj>)
            ]
        |+> Static [
                Constructor (T<unit>)
                //"mem"   => (T<unit> + T<int> ^-> T<unit>)
                //"test2" => (TSelf -* T<int> ^-> T<unit>) * T<string> ^-> T<string>
                //"radius2" =? T<float>
                //|> WithSourceName "R2"
            ]
        |=> Nested [
            Class "Date"
            |+> Instance [
                    "monthNames" =? T<string array>
                ]
        ]

    let Assembly =
        Assembly [
            Namespace "ExtJs" [
                 //I1
                 //I2
                 Ext
            ]
        ]

[<Sealed>]
type Extension() =
    interface IExtension with
        member ext.Assembly =
            Definition.Assembly

[<assembly: Extension(typeof<Extension>)>]
do ()

In my main project I expect to see (with intellisense e.g.) ExtJs.Ext.create but I don't at all. I do have ExtJs.Definition.Ext - but no 'create' 'method'.

.

It's basically depending on how you reference your WIG project in your main project. Based on what you described above, you have used a project reference. In that scenario, you are indeed seeing the .Definition namespace of the WIG project, but if you reference the dll directly, you will get correct IntelliSense. Note, that the project reference works during the build time as well, it's just IntelliSense having an issue with it.

As a workaround if you are developing in Visual Studio you can turn off the following setting to get the project reference working:

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Tools -> Options -> Text Editor -> F# -> Performance -> Enable in-memory cross project references

In other tooling, you can reference the DLL instead of the project as stated above. You can read a bit more about this here:

https://github.com/dotnet-websharper/core/issues/1149

By on 8/30/2021 4:08 AM ()

Thanks, this works.

By on 8/31/2021 12:54 AM ()

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