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fix fmt.Stringer values in json handler

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This commit is contained in:
Jared Wasinger 2023-11-22 15:00:36 +08:00
parent e411480a43
commit 31dcb3daa8
1 changed files with 5 additions and 1 deletions
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6
log/handler.go
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@ -213,7 +213,11 @@ func builtinReplace(_ []string, attr slog.Attr, logfmt bool) slog.Attr {
attr.Value = slog.StringValue(v.Dec()) attr.Value = slog.StringValue(v.Dec())
} }
case fmt.Stringer: case fmt.Stringer:
attr.Value = slog.StringValue(v.String()) if v == nil || (reflect.ValueOf(v).Kind() == reflect.Pointer && reflect.ValueOf(v).IsNil()) {
attr.Value = slog.StringValue("<nil>")
} else {
attr.Value = slog.StringValue(v.String())
}
} }
return attr return attr
} }