askalt commented on code in PR #2184:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/2184#discussion_r2773732242
##########
src/tokenizer.rs:
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@@ -856,6 +856,26 @@ pub struct Tokenizer<'a> {
unescape: bool,
}
+/// Passed into [`Tokenizer::next_token`] as in some situations tokenization
+/// is context dependent. The separate enum is used to be able to not clone
+/// the previous token during [`TokenWithLocationIter`] iteration.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+enum PrevTokenKind {
Review Comment:
Did it to avoid token cloning, as it may be noticeable when a long SQL like
`insert into values ... many strings` is parsed.
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