2010YOUY01 commented on code in PR #23054:
URL: https://github.com/apache/datafusion/pull/23054#discussion_r3447782521
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datafusion/common/src/config.rs:
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@@ -582,6 +583,87 @@ impl Display for SpillCompression {
}
}
+/// A `usize` configuration value that rejects zero when set from strings.
+///
+/// Use this for options where zero is never a meaningful runtime value. The
+/// default should be constructed with [`ConfigNonZeroUsize::new`] so invalid
+/// defaults fail at compile/test time, while user-provided values return a
+/// configuration error through [`ConfigField`].
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct ConfigNonZeroUsize(NonZeroUsize);
+
+impl ConfigNonZeroUsize {
+ /// Creates a [`ConfigNonZeroUsize`], panicking if `value` is zero.
+ pub const fn new(value: usize) -> Self {
+ match NonZeroUsize::new(value) {
+ Some(value) => Self(value),
+ None => panic!("value must be greater than 0"),
+ }
+ }
+
+ /// Creates a [`ConfigNonZeroUsize`], returning a configuration error if
+ /// `value` is zero.
+ pub fn try_new(value: usize) -> Result<Self> {
+ NonZeroUsize::new(value).map(Self).ok_or_else(|| {
+ DataFusionError::Configuration("value must be greater than
0".to_string())
Review Comment:
[b37fe74](https://github.com/apache/datafusion/pull/23054/commits/b37fe74d71df09bcc58b4b03e9e3ca4d8a7a3188)
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