polars_config/
resolve_mode.rs

1use std::fmt;
2use std::str::FromStr;
3
4#[repr(u8)]
5#[derive(Clone, Debug, Copy, Default, Eq, PartialEq, Hash)]
6pub enum ResolveMode {
7    #[default]
8    None = 0,
9    RowCounts = 1,
10    Full = 2,
11}
12
13impl fmt::Display for ResolveMode {
14    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
15        write!(f, "{}", self.as_static_str())
16    }
17}
18
19impl FromStr for ResolveMode {
20    type Err = String;
21
22    fn from_str(s: &str) -> Result<Self, Self::Err> {
23        match s {
24            "none" => Ok(Self::None),
25            "row_counts" => Ok(Self::RowCounts),
26            "full" => Ok(Self::Full),
27            v => Err(format!(
28                "`resolve_metadata_level` must be one of {{'none', 'row_counts', 'full'}}, got {v}",
29            )),
30        }
31    }
32}
33
34impl ResolveMode {
35    pub(crate) fn from_discriminant(d: u8) -> Self {
36        match d {
37            0 => Self::None,
38            1 => Self::RowCounts,
39            2 => Self::Full,
40            _ => unreachable!(),
41        }
42    }
43
44    pub fn as_static_str(&self) -> &'static str {
45        match self {
46            Self::None => "none",
47            Self::RowCounts => "row_counts",
48            Self::Full => "full",
49        }
50    }
51}
polars_config/resolve_mode.rs

polars_config/
resolve_mode.rs
