bjoernager/rust
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Auto merge of #76964 - RalfJung:rollup-ybn06fs, r=RalfJung

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Rollup of 15 pull requests

Successful merges:

 - #76722 (Test and fix Send and Sync traits of BTreeMap artefacts)
 - #76766 (Extract some intrinsics out of rustc_codegen_llvm)
 - #76800 (Don't generate bootstrap usage unless it's needed)
 - #76809 (simplfy condition in ItemLowerer::with_trait_impl_ref())
 - #76815 (Fix wording in mir doc)
 - #76818 (Don't compile regex at every function call.)
 - #76821 (Remove redundant nightly features)
 - #76823 (black_box: silence unused_mut warning when building with cfg(miri))
 - #76825 (use `array_windows` instead of `windows` in the compiler)
 - #76827 (fix array_windows docs)
 - #76828 (use strip_prefix over starts_with and manual slicing based on pattern length (clippy::manual_strip))
 - #76840 (Move to intra doc links in core/src/future)
 - #76845 (Use intra docs links in core::{ascii, option, str, pattern, hash::map})
 - #76853 (Use intra-doc links in library/core/src/task/wake.rs)
 - #76871 (support panic=abort in Miri)

Failed merges:

r? `@ghost`
This commit is contained in:
bors 2020-09-20 11:02:36 +00:00
commit 41507ed0d5
51 changed files with 862 additions and 697 deletions
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6
compiler/rustc_typeck/src/check/demand.rs
View file

@ -370,7 +370,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
{
let s = s.as_ref();
let old = old.as_ref();
if s.starts_with(old) { Some(new.as_ref().to_owned() + &s[old.len()..]) } else { None }
if let Some(stripped) = s.strip_prefix(old) {
Some(new.as_ref().to_owned() + stripped)
} else {
None
}
}
/// This function is used to determine potential "simple" improvements or users' errors and

8
compiler/rustc_typeck/src/check/op.rs
View file

@ -589,10 +589,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
} else {
msg
},
if lstring.starts_with('&') {
if let Some(stripped) = lstring.strip_prefix('&') {
// let a = String::new();
// let _ = &a + "bar";
lstring[1..].to_string()
stripped.to_string()
} else {
format!("{}.to_owned()", lstring)
},
@ -617,10 +617,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
is_assign,
) {
(Ok(l), Ok(r), IsAssign::No) => {
let to_string = if l.starts_with('&') {
let to_string = if let Some(stripped) = l.strip_prefix('&') {
// let a = String::new(); let b = String::new();
// let _ = &a + b;
l[1..].to_string()
stripped.to_string()
} else {
format!("{}.to_owned()", l)
};

4
compiler/rustc_typeck/src/collect.rs
View file

@ -2343,8 +2343,8 @@ fn from_target_feature(
item.span(),
format!("`{}` is not valid for this target", feature),
);
if feature.starts_with('+') {
let valid = supported_target_features.contains_key(&feature[1..]);
if let Some(stripped) = feature.strip_prefix('+') {
let valid = supported_target_features.contains_key(stripped);
if valid {
err.help("consider removing the leading `+` in the feature name");
}