phantom-type

library0.5.2rscratesunverified

A PhantomData analog which prevents 'parameter is never used' error, but does not produce any restrictions in contrast with PhantomData.

utility

# Cargo.toml
[dependencies]
phantom-type = "0.5.2"

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INSTALL

IMPORT

SIG · PHANTOM-TYPE

phantom-type

utilityrustv0.5.2

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

PhantomType

✓ use phantom_type::PhantomType;

Uses PhantomType to avoid unused parameter warnings without adding restrictions.

use phantom_type::PhantomType; struct MyStruct<T> { value: i32, _marker: PhantomType<T>, } fn main() { let s = MyStruct::<String> { value: 42, _marker: PhantomType }; println!("{}", s.value); }

Debug

Known issues

gotchaPhantomType does not enforce any ownership or lifetime constraints unlike PhantomData.

fix

Use PhantomData if you need variance or drop check restrictions.

affects: >=0.5.0

Upgrade

Version history

0.5.2latest on crates.io

Audit

Dependencies

No dependency data recorded yet.

Agent activity

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Resources

githubhttps://github.com/A1-Triard/phantom-type ↗

homepagehttps://github.com/A1-Triard/phantom-type ↗

docshttps://docs.rs/phantom-type/ ↗