Module cranelift_codegen::settings

Expand description

Shared settings module.

This module defines data structures to access the settings defined in the meta language.

Each settings group is translated to a Flags struct either in this module or in its ISA-specific settings module. The struct provides individual getter methods for all of the settings as well as computed predicate flags.

The Flags struct is immutable once it has been created. A Builder instance is used to create it.

Example

use cranelift_codegen::settings::{self, Configurable};

let mut b = settings::builder();
b.set("opt_level", "speed_and_size");

let f = settings::Flags::new(b);
assert_eq!(f.opt_level(), settings::OptLevel::SpeedAndSize);