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Rollup merge of #76567 - matthiaskrgr:clone_on_copy, r=varkor

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use push(char) to add chars (single-char &strs) to strings instead of push_str(&str)
This commit is contained in:
Tyler Mandry 2020-09-10 12:20:12 -07:00 committed by GitHub
commit c8f9c728c2
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GPG Key ID: 4AEE18F83AFDEB23
13 changed files with 33 additions and 31 deletions
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12
compiler/rustc_builtin_macros/src/format_foreign.rs
View File

@ -166,14 +166,14 @@ pub mod printf {
let cap = self.span.len() + if has_options { 2 } else { 0 };
let mut s = String::with_capacity(cap);
s.push_str("{");
s.push('{');
if let Some(arg) = self.parameter {
write!(s, "{}", arg.checked_sub(1)?).ok()?;
}
if has_options {
s.push_str(":");
s.push(':');
let align = if let Some(fill) = fill {
s.push_str(fill);
@ -191,11 +191,11 @@ pub mod printf {
}
if alt {
s.push_str("#");
s.push('#');
}
if zero_fill {
s.push_str("0");
s.push('0');
}
if let Some(width) = width {
@ -203,7 +203,7 @@ pub mod printf {
}
if let Some(precision) = precision {
s.push_str(".");
s.push('.');
precision.translate(&mut s).ok()?;
}
@ -212,7 +212,7 @@ pub mod printf {
}
}
s.push_str("}");
s.push('}');
Some(s)
}
}

2
compiler/rustc_codegen_ssa/src/back/link.rs
View File

@ -1076,7 +1076,7 @@ fn exec_linker(
}
.to_string(),
);
args.push_str("\n");
args.push('\n');
}
let file = tmpdir.join("linker-arguments");
let bytes = if sess.target.target.options.is_like_msvc {

2
compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs
View File

@ -37,7 +37,7 @@ pub fn push_debuginfo_type_name<'tcx>(
ty::Bool => output.push_str("bool"),
ty::Char => output.push_str("char"),
ty::Str => output.push_str("str"),
ty::Never => output.push_str("!"),
ty::Never => output.push('!'),
ty::Int(int_ty) => output.push_str(int_ty.name_str()),
ty::Uint(uint_ty) => output.push_str(uint_ty.name_str()),
ty::Float(float_ty) => output.push_str(float_ty.name_str()),

2
compiler/rustc_infer/src/infer/error_reporting/mod.rs
View File

@ -2093,7 +2093,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
_ => String::new(),
};
if !s.is_empty() {
s.push_str(" ");
s.push(' ');
}
s
};

2
compiler/rustc_infer/src/infer/lub.rs
View File

@ -50,7 +50,7 @@ impl TypeRelation<'tcx> for Lub<'combine, 'infcx, 'tcx> {
ty::Invariant => self.fields.equate(self.a_is_expected).relate(a, b),
ty::Covariant => self.relate(a, b),
// FIXME(#41044) -- not correct, need test
ty::Bivariant => Ok(a.clone()),
ty::Bivariant => Ok(a),
ty::Contravariant => self.fields.glb(self.a_is_expected).relate(a, b),
}
}

22
compiler/rustc_mir/src/borrow_check/diagnostics/mod.rs
View File

@ -150,8 +150,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
Some(mut descr) => {
// Surround descr with `backticks`.
descr.reserve(2);
descr.insert_str(0, "`");
descr.push_str("`");
descr.insert(0, '`');
descr.push('`');
descr
}
None => "value".to_string(),
@ -222,7 +222,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
if self.upvars[var_index].by_ref {
buf.push_str(&name);
} else {
buf.push_str(&format!("*{}", &name));
buf.push('*');
buf.push_str(&name);
}
} else {
if autoderef {
@ -234,7 +235,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
&including_downcast,
)?;
} else {
buf.push_str(&"*");
buf.push('*');
self.append_place_to_string(
PlaceRef { local, projection: proj_base },
buf,
@ -272,7 +273,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
autoderef,
&including_downcast,
)?;
buf.push_str(&format!(".{}", field_name));
buf.push('.');
buf.push_str(&field_name);
}
}
ProjectionElem::Index(index) => {
@ -284,11 +286,11 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
autoderef,
&including_downcast,
)?;
buf.push_str("[");
buf.push('[');
if self.append_local_to_string(*index, buf).is_err() {
buf.push_str("_");
buf.push('_');
}
buf.push_str("]");
buf.push(']');
}
ProjectionElem::ConstantIndex { .. } | ProjectionElem::Subslice { .. } => {
autoderef = true;
@ -301,7 +303,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
autoderef,
&including_downcast,
)?;
buf.push_str(&"[..]");
buf.push_str("[..]");
}
};
}
@ -648,7 +650,7 @@ impl UseSpans {
" in closure".to_string()
}
}
_ => "".to_string(),
_ => String::new(),
}
}

4
compiler/rustc_mir/src/borrow_check/region_infer/values.rs
View File

@ -417,7 +417,7 @@ crate fn location_set_str(
fn region_value_str(elements: impl IntoIterator<Item = RegionElement>) -> String {
let mut result = String::new();
result.push_str("{");
result.push('{');
// Set to Some(l1, l2) when we have observed all the locations
// from l1..=l2 (inclusive) but not yet printed them. This
@ -478,7 +478,7 @@ fn region_value_str(elements: impl IntoIterator<Item = RegionElement>) -> String
push_location_range(&mut result, location1, location2);
}
result.push_str("}");
result.push('}');
return result;

6
compiler/rustc_mir/src/monomorphize/partitioning/mod.rs
View File

@ -382,7 +382,7 @@ fn collect_and_partition_mono_items<'tcx>(
cgus.sort_by_key(|(name, _)| *name);
cgus.dedup();
for &(ref cgu_name, (linkage, _)) in cgus.iter() {
output.push_str(" ");
output.push(' ');
output.push_str(&cgu_name.as_str());
let linkage_abbrev = match linkage {
@ -399,9 +399,9 @@ fn collect_and_partition_mono_items<'tcx>(
Linkage::Common => "Common",
};
output.push_str("[");
output.push('[');
output.push_str(linkage_abbrev);
output.push_str("]");
output.push(']');
}
output
})

2
compiler/rustc_mir/src/transform/instrument_coverage.rs
View File

@ -353,7 +353,7 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
if !INCLUDE_COVERAGE_STATEMENTS {
continue;
}
format!("unreachable")
String::from("unreachable")
}
},
_ => format!("{:?}", statement),

2
compiler/rustc_mir/src/util/pretty.rs
View File

@ -514,7 +514,7 @@ fn write_scope_tree(
write!(indented_decl, " as {:?}", user_ty).unwrap();
}
}
indented_decl.push_str(";");
indented_decl.push(';');
let local_name =
if local == RETURN_PLACE { " return place".to_string() } else { String::new() };

2
compiler/rustc_save_analysis/src/lib.rs
View File

@ -438,7 +438,7 @@ impl<'tcx> SaveContext<'tcx> {
.next()
.map(|item| item.def_id);
}
qualname.push_str(">");
qualname.push('>');
(qualname, trait_id, decl_id, docs, attrs)
}

2
compiler/rustc_save_analysis/src/sig.rs
View File

@ -497,7 +497,7 @@ impl<'hir> Sig for hir::Item<'hir> {
sig.text.push_str(&bounds_to_string(bounds));
}
// FIXME where clause
sig.text.push_str(";");
sig.text.push(';');
Ok(sig)
}

4
compiler/rustc_session/src/config.rs
View File

@ -581,9 +581,9 @@ impl OutputFilenames {
if !ext.is_empty() {
if !extension.is_empty() {
extension.push_str(".");
extension.push('.');
extension.push_str(RUST_CGU_EXT);
extension.push_str(".");
extension.push('.');
}
extension.push_str(ext);