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Handle Exception.ToString() failures in template compilation #135

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Handle Exception.ToString() failures in template compilation #135

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12 changes: 11 additions & 1 deletion src/Serilog.Expressions/Templates/Compilation/CompiledExceptionToken.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,17 @@ public override void Evaluate(EvaluationContext ctx, TextWriter output)
if (ctx.LogEvent.Exception is null)
return;

var lines = new StringReader(ctx.LogEvent.Exception.ToString());
StringReader lines;
try
{
lines = new StringReader(ctx.LogEvent.Exception.ToString());
}
catch (Exception e)
{
lines = new StringReader(
$"[Exception.ToString() failed: {e.Message}] Original exception type: {ctx.LogEvent.Exception?.GetType().FullName}, message: {ctx.LogEvent.Exception?.Message}{Environment.NewLine}");
}

while (lines.ReadLine() is { } nextLine)
{
var style = nextLine.StartsWith(StackFrameLinePrefix) ? _secondaryText : _text;
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