aeb9161e2c
With Rust 2018 Edition, the `mod std` trick to alias `core` names to `std` no longer works, so switch to just having the code use `core` explicitly. So instead, switch to just using `core::*` for things that in core. This is more consistent with other Rust no_std code. And it allows us to enable `no_std` mode unconditionally in the crates that support it, which makes testing a little easier. There actually three cases: - For things in std and also in core, like `cmp`: Just use them via `core::*`. - For things in std and also in alloc, like `Vec`: Import alloc as std, as use them from std. This allows them to work on both stable (which doesn't provide alloc, but we don't support no_std mode anyway) and nightly. - For HashMap and similar which are not in core or alloc, import them in the top-level lib.rs files from either std or the third-party hashmap_core crate, and then have the code use super::hashmap_core. Also, no_std support continues to be "best effort" at this time and not something most people need to be testing.
53 lines
1.6 KiB
Rust
53 lines
1.6 KiB
Rust
//! x86 Settings.
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use crate::settings::{self, detail, Builder};
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use core::fmt;
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// Include code generated by `lib/codegen/meta-python/gen_settings.py`. This file contains a public
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// `Flags` struct with an impl for all of the settings defined in
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// `lib/codegen/meta-python/isa/x86/settings.py`.
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include!(concat!(env!("OUT_DIR"), "/settings-x86.rs"));
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#[cfg(test)]
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mod tests {
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use super::{builder, Flags};
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use crate::settings::{self, Configurable};
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#[test]
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fn presets() {
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let shared = settings::Flags::new(settings::builder());
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// Nehalem has SSE4.1 but not BMI1.
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let mut b0 = builder();
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b0.enable("nehalem").unwrap();
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let f0 = Flags::new(&shared, b0);
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assert_eq!(f0.has_sse41(), true);
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assert_eq!(f0.has_bmi1(), false);
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let mut b1 = builder();
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b1.enable("haswell").unwrap();
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let f1 = Flags::new(&shared, b1);
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assert_eq!(f1.has_sse41(), true);
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assert_eq!(f1.has_bmi1(), true);
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}
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#[test]
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fn display_presets() {
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// Spot check that the flags Display impl does not cause a panic
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let shared = settings::Flags::new(settings::builder());
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let b0 = builder();
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let f0 = Flags::new(&shared, b0);
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let _ = format!("{}", f0);
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let mut b1 = builder();
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b1.enable("nehalem").unwrap();
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let f1 = Flags::new(&shared, b1);
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let _ = format!("{}", f1);
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let mut b2 = builder();
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b2.enable("haswell").unwrap();
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let f2 = Flags::new(&shared, b2);
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let _ = format!("{}", f2);
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}
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}
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