From 03068c9165af6cdb0cf44f0c19004e6a2ff4d4dc Mon Sep 17 00:00:00 2001 From: Steve Sanderson Date: Fri, 17 Apr 2020 03:06:12 +0100 Subject: [PATCH] Transfer .NET unhandled exceptions to JS via dedicated interop call. 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The underlying runtime writes + // to stderr if a truly critical problem occurs outside .NET code. Note that .NET unhandled + // exceptions also reach this, but via a different code path - see dotNetCriticalError below. console.error(line); showErrorNotification(); }; @@ -250,6 +253,10 @@ function createEmscriptenModuleInstance(resourceLoader: WebAssemblyResourceLoade assembliesBeingLoaded.forEach(r => addResourceAsAssembly(r, changeExtension(r.name, '.dll'))); pdbsBeingLoaded.forEach(r => addResourceAsAssembly(r, r.name)); + window['Blazor']._internal.dotNetCriticalError = (message: System_String) => { + module.printErr(BINDING.conv_string(message) || '(null)'); + }; + // Wire-up callbacks for satellite assemblies. Blazor will call these as part of the application // startup sequence to load satellite assemblies for the application's culture. window['Blazor']._internal.getSatelliteAssemblies = (culturesToLoadDotNetArray: System_Array) : System_Object => { diff --git a/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLogger.cs b/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLogger.cs index 668aeb7c96..d8fb668579 100644 --- a/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLogger.cs +++ b/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLogger.cs @@ -6,6 +6,7 @@ using System.Collections.Concurrent; using System.Text; using Microsoft.Extensions.Logging; using Microsoft.JSInterop; +using Microsoft.JSInterop.WebAssembly; namespace Microsoft.AspNetCore.Components.WebAssembly.Services { @@ -17,7 +18,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Services private static readonly StringBuilder _logBuilder = new StringBuilder(); private readonly string _name; - private readonly IJSInProcessRuntime _jsRuntime; + private readonly WebAssemblyJSRuntime _jsRuntime; static WebAssemblyConsoleLogger() { @@ -27,11 +28,11 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Services } public WebAssemblyConsoleLogger(IJSRuntime jsRuntime) - : this(string.Empty, (IJSInProcessRuntime)jsRuntime) // Cast for DI + : this(string.Empty, (WebAssemblyJSRuntime)jsRuntime) // Cast for DI { } - public WebAssemblyConsoleLogger(string name, IJSInProcessRuntime jsRuntime) + public WebAssemblyConsoleLogger(string name, WebAssemblyJSRuntime jsRuntime) { _name = name ?? throw new ArgumentNullException(nameof(name)); _jsRuntime = jsRuntime ?? throw new ArgumentNullException(nameof(jsRuntime)); @@ -98,12 +99,7 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Services _jsRuntime.InvokeVoid("console.error", formattedMessage); break; case LogLevel.Critical: - // Writing to Console.Error is even more severe than calling console.error, - // because it also causes the error UI (gold bar) to appear. We use Console.Error - // as the signal for triggering that because it's what the underlying dotnet.wasm - // runtime will do if it encounters a truly severe error outside the Blazor - // code paths. - Console.Error.WriteLine(formattedMessage); + _jsRuntime.InvokeUnmarshalled("Blazor._internal.dotNetCriticalError", formattedMessage); break; default: // LogLevel.None or invalid enum values Console.WriteLine(formattedMessage); diff --git a/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLoggerProvider.cs b/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLoggerProvider.cs index 50a3c9ce7e..cc3079d917 100644 --- a/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLoggerProvider.cs +++ b/src/Components/WebAssembly/WebAssembly/src/Services/WebAssemblyConsoleLoggerProvider.cs @@ -5,6 +5,7 @@ using System; using System.Collections.Concurrent; using Microsoft.Extensions.Logging; using Microsoft.JSInterop; +using Microsoft.JSInterop.WebAssembly; namespace Microsoft.AspNetCore.Components.WebAssembly.Services { @@ -14,12 +15,12 @@ namespace Microsoft.AspNetCore.Components.WebAssembly.Services internal class WebAssemblyConsoleLoggerProvider : ILoggerProvider { private readonly ConcurrentDictionary> _loggers; - private readonly IJSInProcessRuntime _jsRuntime; + private readonly WebAssemblyJSRuntime _jsRuntime; /// /// Creates an instance of . /// - public WebAssemblyConsoleLoggerProvider(IJSInProcessRuntime jsRuntime) + public WebAssemblyConsoleLoggerProvider(WebAssemblyJSRuntime jsRuntime) { _loggers = new ConcurrentDictionary>(); _jsRuntime = jsRuntime;