Enum Class 

pub enum Class {
    Runtime,
    Harness,
    Build,
    Dev,
    Tool,
}

2026-09-26: Who reads a lever. levers_tests checks each lever’s reader against its class.

Variants

Runtime

2026-09-26: Read by a met process at run time (serve or bench). A recipe may declare it in env:.

Harness

2026-09-26: Places, logs or builds for the harness. A recipe may not declare it.

Build

2026-09-26: Read when the binary is built (a build script or option_env!).

Dev

2026-09-26: Read only by a test or a dev example/benchmark.

Tool

2026-09-26: Read only by an operator script or the site build, outside crates/.

Implementations

impl Class

pub fn as_str(self) -> &'static str

Trait Implementations

impl Clone for Class

fn clone(&self) -> Class

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Class

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Class

fn eq(&self, other: &Class) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Class

impl Eq for Class

impl StructuralPartialEq for Class