[wasm] `wasmconsole` build raises `warning CA1416: This call site is reachable on all platforms. 'JSExportAttribute' is only supported on: 'browser'.`

[radical]

This seems to be specifically when using a 8.0 sdk, and a net7.0 project created with dotnet new wasmconsole -f net7.0.

Program.cs(13,6): warning CA1416: This call site is reachable on all platforms. 'JSExportAttribute' is only supported on: 'browser'.

This can be seen in Wasm.Build.Tests.WasmTemplateTests.ConsoleBuildAndRunForSpecificTFM(config: "Debug", extraNewArgs: "-f net7.0", expectedTFM: "net7.0").

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Issue Details

---

This seems to be specifically when using a 8.0 sdk, and a net7.0 project created with dotnet new wasmconsole -f net7.0.

Program.cs(13,6): warning CA1416: This call site is reachable on all platforms. 'JSExportAttribute' is only supported on: 'browser'.

This can be seen in Wasm.Build.Tests.WasmTemplateTests.ConsoleBuildAndRunForSpecificTFM(config: "Debug", extraNewArgs: "-f net7.0", expectedTFM: "net7.0").

Author:	radical
Assignees:	-
Labels:	arch-wasm, area-Build-mono
Milestone:	-

[radical]

cc @pavelsavara @maraf

[pavelsavara]

Is the template targeting Browser os ?

[maraf]

@radical The dotnet-net7+latest\packs\Microsoft.NET.Runtime.WebAssembly.Sdk\7.0.0\Sdk\WasmApp.targets doesn't replace SuportedPlatform

7.0.0

  <ItemGroup>
    <!-- Allow running/debugging from VS -->
    <ProjectCapability Include="DotNetCoreWeb"/>
  </ItemGroup>

=>

SupportedPlatform
    Linux
    macOS
    Windows

8.0.0

  <ItemGroup>
    <!-- Allow running/debugging from VS -->
    <ProjectCapability Include="DotNetCoreWeb"/>

    <SupportedPlatform Condition="'$(IsBrowserWasmProject)' == 'true'" Remove="@(SupportedPlatform)" />
    <SupportedPlatform Condition="'$(IsBrowserWasmProject)' == 'true'" Include="browser" />
  </ItemGroup>

=>

SupportedPlatform
    browser

The changes mentioned above added in #78376

[maraf]

And this #77704

[maraf]

Resolved in mentioned PRs