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Fix some warnings in no_std builds.

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The dbg! macro expands to nothing in no_std mode, so variables that are
only used for debugging prompt unused variable warnings.

Also, allow unstable_features in no_std builds, since they use
feature(alloc), which is an unstable feature.
This commit is contained in:
Dan Gohman
2018-04-30 13:56:29 -07:00
parent 94a883abae
commit 9c87f3ac87
7 changed files with 22 additions and 14 deletions
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3
lib/frontend/src/lib.rs
View File

@@ -128,7 +128,8 @@
//! ```
#![deny(missing_docs, trivial_numeric_casts, unused_extern_crates)]
#![warn(unused_import_braces, unstable_features)]
#![warn(unused_import_braces)]
#![cfg_attr(feature = "std", warn(unstable_features))]
#![cfg_attr(feature = "cargo-clippy", allow(new_without_default))]
#![cfg_attr(feature="cargo-clippy", warn(
float_arithmetic,

12
lib/frontend/src/ssa.rs
View File

@@ -1024,9 +1024,9 @@ mod tests {
let flags = settings::Flags::new(settings::builder());
match verify_function(&func, &flags) {
Ok(()) => {}
Err(err) => {
Err(_err) => {
#[cfg(feature = "std")]
panic!(err.message);
panic!(_err.message);
#[cfg(not(feature = "std"))]
panic!("function failed to verify");
}
@@ -1203,9 +1203,9 @@ mod tests {
let flags = settings::Flags::new(settings::builder());
match verify_function(&func, &flags) {
Ok(()) => {}
Err(err) => {
Err(_err) => {
#[cfg(feature = "std")]
panic!(err.message);
panic!(_err.message);
#[cfg(not(feature = "std"))]
panic!("function failed to verify");
}
@@ -1254,9 +1254,9 @@ mod tests {
let flags = settings::Flags::new(settings::builder());
match verify_function(&func, &flags) {
Ok(()) => {}
Err(err) => {
Err(_err) => {
#[cfg(feature = "std")]
panic!(err.message);
panic!(_err.message);
#[cfg(not(feature = "std"))]
panic!("function failed to verify");
}