cargo-grip4rust 0.4.0

A cargo subcommand for measuring Rust testability
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

// Copyright 2026 Umberto Gotti <umberto.gotti@umbertogotti.dev>
// Licensed under the MIT License
// SPDX-License-Identifier: MIT

#[must_use]
pub fn contribution(is_pure: bool, has_trait_seam: bool, dep_weight: f64) -> f64 {
    if dep_weight >= 1.0 {
        return 0.0;
    }
    let base = match (is_pure, has_trait_seam) {
        (true, true) => 1.00,
        (true, false) => 0.95,
        (false, true) => 0.85,
        (false, false) => 0.15,
    };
    (base * (1.0 - dep_weight)).max(0.0)
}