fix some warnings that occur in certain feature activations

polars/polars-core/src/series/implementations/categorical.rs

@@ -21,6 +21,7 @@ use crate::series::arithmetic::checked::NumOpsDispatchChecked;
 use crate::series::implementations::SeriesWrap;
 use ahash::RandomState;
 use arrow::array::ArrayRef;
+#[cfg(feature = "object")]
 use std::any::Any;
 use std::borrow::Cow;
 use std::ops::Deref;

polars/polars-lazy/src/dsl.rs

@@ -1,7 +1,9 @@
 //! Domain specific language for the Lazy api.
 use crate::logical_plan::Context;
 use crate::prelude::*;
-use crate::utils::{expr_to_root_column_name, has_expr, has_wildcard};
+#[cfg(feature = "is_in")]
+use crate::utils::expr_to_root_column_name;
+use crate::utils::{has_expr, has_wildcard};
 use polars_core::export::arrow::{array::BooleanArray, bitmap::MutableBitmap};
 use polars_core::prelude::*;
 

polars/polars-lazy/src/logical_plan/projection.rs

@@ -153,6 +153,8 @@ fn expand_dtypes(expr: &Expr, result: &mut Vec<Expr>, schema: &Schema, dtypes: &
     }
 }
 
+// schema is not used if regex not activated
+#[allow(unused_variables)]
 fn prepare_excluded(expr: &Expr, schema: &Schema) -> Vec<Arc<str>> {
     let mut exclude = vec![];
     expr.into_iter().for_each(|e| {

polars/polars-lazy/src/physical_plan/executors/join.rs

@@ -12,7 +12,11 @@ pub struct JoinExec {
     right_on: Vec<Arc<dyn PhysicalExpr>>,
     parallel: bool,
     suffix: Option<String>,
+    // not used if asof not activated
+    #[allow(dead_code)]
     asof_by_left: Vec<String>,
+    // not used if asof not activated
+    #[allow(dead_code)]
     asof_by_right: Vec<String>,
 }