[ruby-core:125183] [Ruby Bug#21980] RubyVM::AST offsets are incorrect when BOM

2 Apr 2026


      Issue #21980 has been reported by kddnewton (Kevin Newton).

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Bug #21980: RubyVM::AST offsets are incorrect when BOM
https://bugs.ruby-lang.org/issues/21980

* Author: kddnewton (Kevin Newton)
* Status: Open
* Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN, 4.0: UNKNOWN
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When there is a BOM on a file, the offsets are incorrect for nodes. See:

```
RubyVM::AbstractSyntaxTree.parse("\xEF\xBB\xBF1").source # => "\xEF"
```


-- 
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