Contents

use crate::{RArray, RbExpr, RbPolarsErr, RbResult};

impl RbExpr {
    pub fn meta_pop(&self) -> RArray {
        RArray::from_iter(
            self.inner
                .clone()
                .meta()
                .pop()
                .into_iter()
                .map(RbExpr::from),
        )
    }

    pub fn meta_eq(&self, other: &RbExpr) -> bool {
        self.inner == other.inner
    }

    pub fn meta_roots(&self) -> Vec<String> {
        self.inner
            .clone()
            .meta()
            .root_names()
            .iter()
            .map(|name| name.to_string())
            .collect()
    }

    pub fn meta_output_name(&self) -> RbResult<String> {
        let name = self
            .inner
            .clone()
            .meta()
            .output_name()
            .map_err(RbPolarsErr::from)?;
        Ok(name.to_string())
    }

    pub fn meta_undo_aliases(&self) -> RbExpr {
        self.inner.clone().meta().undo_aliases().into()
    }
}

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
polars-df-0.4.0	ext/polars/src/lazy/meta.rs
polars-df-0.3.1	ext/polars/src/lazy/meta.rs
polars-df-0.3.0	ext/polars/src/lazy/meta.rs