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Fix assembly loading on Android #129

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upswing1 opened this issue Apr 6, 2023 · 1 comment
Open

Fix assembly loading on Android #129

upswing1 opened this issue Apr 6, 2023 · 1 comment
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enhancement New feature or request

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@upswing1
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upswing1 commented Apr 6, 2023 •
edited
Loading

When running this code
var engine = new RazorEngineCore.RazorEngine();
I get the following error in Android emulator:
Your app has entered a break state, but there is no code to show because all threads were executing external code

This happens under .net MAUI for an android app. It works fine for WINUI

Call stack
0x29 in System.Reflection.ConstructorInvoker.InterpretedInvoke C#
0x4 in System.Reflection.ConstructorInvoker.InlinedInvoke C#
0xBD in System.RuntimeType.CreateInstanceMono C#
0x1F in System.RuntimeType.CreateInstanceDefaultCtor C#
0x30 in System.Activator.CreateInstance C#
0x3 in System.Activator.CreateInstance C#
0x2 in System.Activator.CreateInstance C#
0x48 in Microsoft.Maui.Controls.ShellContent. at D:\a_work\1\s\src\Controls\src\Core\Shell\ShellContent.cs:75,8 C#
0x27 in Microsoft.Maui.Controls.ElementTemplate.CreateContent at D:\a_work\1\s\src\Controls\src\Core\ElementTemplate.cs:85,4 C#
0x8 in Microsoft.Maui.Controls.Internals.DataTemplateExtensions.CreateContent at D:\a_work\1\s\src\Controls\src\Core\DataTemplateExtensions.cs:22,4 C#
0x77 in Microsoft.Maui.Controls.ShellContent.Microsoft.Maui.Controls.IShellContentController.GetOrCreateContent at D:\a_work\1\s\src\Controls\src\Core\Shell\ShellContent.cs:80,5 C#
0x16E in Microsoft.Maui.Controls.Platform.Compatibility.ShellSectionRenderer.OnCreateView at D:\a_work\1\s\src\Controls\src\Core\Compatibility\Handlers\Shell\Android\ShellSectionRenderer.cs:123,5 C#
0x24 in AndroidX.Fragment.App.Fragment.n_OnCreateView_Landroid_view_LayoutInflater_Landroid_view_ViewGroup_Landroid_os_Bundle_ at /Users/runner/work/1/s/generated/androidx.fragment.fragment/obj/Release/net6.0-android/generated/src/AndroidX.Fragment.App.Fragment.cs:2031,4 C#
0xD in Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PPLLL_L at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Android.Runtime/JNINativeWrapper.g.cs:352,5 C#

I get the following error in actual device

       var engine = new RazorEngineCore.RazorEngine();

        try
        {
            var compiledTemplate = engine.Compile(template);  <==== Exception

            var result = compiledTemplate.Run(model);

            return result;
        }
        catch(Exception ex) 
        { 
            string s = ex.Message;
            return s;
        }

Exception The method or operation is not implemented.
at System.Reflection.Metadata.AssemblyExtensions.TryGetRawMetadata(Assembly assembly, Byte*& blob, Int32& length)
at RazorEngineCore.RazorEngine.<>c.b__4_1(Assembly ass)
at System.Linq.Enumerable.SelectEnumerableIterator2[[System.Reflection.Assembly, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Microsoft.CodeAnalysis.PortableExecutableReference, Microsoft.CodeAnalysis, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]].MoveNext() at System.Linq.Enumerable.ConcatIterator1[[Microsoft.CodeAnalysis.MetadataReference, Microsoft.CodeAnalysis, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]].MoveNext()
at System.Collections.Generic.List1[[Microsoft.CodeAnalysis.MetadataReference, Microsoft.CodeAnalysis, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]..ctor(IEnumerable1 collection)
at System.Linq.Enumerable.ToList[MetadataReference](IEnumerable1 source) at RazorEngineCore.RazorEngine.CreateAndCompileToStream(String templateSource, RazorEngineCompilationOptions options) at RazorEngineCore.RazorEngine.Compile(String content, Action1 builderAction)
at ReportsComponents.Reports.ReportGenerator.GenerateReport(String template, Object model) in D:\repos\FeatureReports\FeatureReportsComponents\Reports\ReportGenerator.cs:line 13

template is

<html>
<body>
    <h1>Report for @Model.UserName</h1>
`
    <p>Account Balance: @Model.AccountBalance</p>

    <table>
        <thead>
            <tr>
                <th>Transaction Date</th>
                <th>Description</th>
                <th>Amount</th>
            </tr>
        </thead>
        <tbody>
            @foreach (var transaction in Model.Transactions)
            {
                <tr>
                    <td>@transaction.TransactionDate.ToShortDateString()</td>
                    <td>@transaction.Description</td>
                    <td>@string.Format("{0:C}", transaction.Amount)</td>
                </tr>
            }
        </tbody>
    </table>
</body>
</html>

`
@upswing1 upswing1 changed the title A break mode occurs in Maui .net androis app. It works fine in Win UI A break mode occurs in Maui .net android app. It works fine in Win UI Apr 6, 2023
@adoconnection
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It seems Android seems specific assembly loading, so someone need to dive in and figure that out 😅

RazorEngineCore/RazorEngineCore/RazorEngine.cs

Lines 79 to 104 in c285822

CSharpCompilation compilation = CSharpCompilation.Create(
fileName,
new[]
{
syntaxTree
},
options.ReferencedAssemblies
.Select(ass =>
{
#if NETSTANDARD2_0
return MetadataReference.CreateFromFile(ass.Location);
#else
unsafe
{
ass.TryGetRawMetadata(out byte* blob, out int length);
ModuleMetadata moduleMetadata = ModuleMetadata.CreateFromMetadata((IntPtr)blob, length);
AssemblyMetadata assemblyMetadata = AssemblyMetadata.Create(moduleMetadata);
PortableExecutableReference metadataReference = assemblyMetadata.GetReference();
return metadataReference;
}
#endif
})
.Concat(options.MetadataReferences)
.ToList(),
new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));

@adoconnection adoconnection added the enhancement New feature or request label Sep 22, 2024
@adoconnection adoconnection changed the title A break mode occurs in Maui .net android app. It works fine in Win UI Fix assembly loading on Android Sep 22, 2024
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@adoconnection @upswing1