sarah 0.1.6

Count tokens, lines and function sizes per file to help AI agents decide what to refactor
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use derive_more::{Display, FromStr};
use serde::{Deserialize, Serialize};

/// Token count under the selected encoding.
#[derive(
    Clone,
    Copy,
    Debug,
    Default,
    PartialEq,
    Eq,
    PartialOrd,
    Ord,
    Display,
    FromStr,
    Serialize,
    Deserialize,
)]
#[serde(transparent)]
pub struct Tokens(pub usize);

/// Number of lines (a count, not a position; see `LineNo`).
#[derive(
    Clone,
    Copy,
    Debug,
    Default,
    PartialEq,
    Eq,
    PartialOrd,
    Ord,
    Display,
    FromStr,
    Serialize,
    Deserialize,
)]
#[serde(transparent)]
pub struct Lines(pub usize);

/// Size in bytes.
#[derive(
    Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Display, Serialize, Deserialize,
)]
#[serde(transparent)]
pub struct Bytes(pub usize);

/// Nesting depth: control-flow levels inside a function, or folder levels below the root.
#[derive(
    Clone,
    Copy,
    Debug,
    Default,
    PartialEq,
    Eq,
    PartialOrd,
    Ord,
    Display,
    FromStr,
    Serialize,
    Deserialize,
)]
#[serde(transparent)]
pub struct Depth(pub usize);

impl Tokens {
    pub fn saturating_add(self, rhs: Self) -> Self {
        Self(self.0.saturating_add(rhs.0))
    }
}

impl Lines {
    pub fn saturating_add(self, rhs: Self) -> Self {
        Self(self.0.saturating_add(rhs.0))
    }
}

impl Bytes {
    pub fn saturating_add(self, rhs: Self) -> Self {
        Self(self.0.saturating_add(rhs.0))
    }
}