Function macro_state::proc_clear_state

pub fn proc_clear_state(key: &str) -> Result<()>

An analogue for clear_state! that should only be used within proc macros.

Clears the value for the specified key, if it exists.

If an error occurs while trying to clear the state file for the specified key, the error will be returned as the Err variant of the std::io::Result.

Example

use macro_state::*;

proc_write_state("my key", "test").unwrap();
assert_eq!(proc_read_state("my key").unwrap(), "test");
proc_clear_state("my key").unwrap();
assert_eq!(proc_has_state("my key"), false);