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Auto merge of #81384 - tmiasko:partial-ord, r=petrochenkov

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Fix derived PartialOrd operators

The derived implementation of `partial_cmp` compares matching fields one
by one, stopping the computation when the result of a comparison is not
equal to `Some(Equal)`.

On the other hand the derived implementation for `lt`, `le`, `gt` and
`ge` continues the computation when the result of a field comparison is
`None`, consequently those operators are not transitive and inconsistent
with `partial_cmp`.

Fix the inconsistency by using the default implementation that fall-backs
to the `partial_cmp`. This also avoids creating very deeply nested
closures that were quite costly to compile.

Fixes #81373.
Helps with #81278, #80118.
This commit is contained in:
bors 2021-02-09 08:47:38 +00:00
commit c648bd5558
26 changed files with 83 additions and 1718 deletions
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197
compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs
View File

@ -1,13 +1,11 @@
pub use OrderingOp::*;
use crate::deriving::generic::ty::*;
use crate::deriving::generic::*;
use crate::deriving::{path_local, path_std, pathvec_std};
use crate::deriving::{path_std, pathvec_std};
use rustc_ast::ptr::P;
use rustc_ast::{self as ast, BinOpKind, Expr, MetaItem};
use rustc_ast::{Expr, MetaItem};
use rustc_expand::base::{Annotatable, ExtCtxt};
use rustc_span::symbol::{sym, Ident, Symbol};
use rustc_span::symbol::{sym, Ident};
use rustc_span::Span;
pub fn expand_deriving_partial_ord(
@ -17,26 +15,6 @@ pub fn expand_deriving_partial_ord(
item: &Annotatable,
push: &mut dyn FnMut(Annotatable),
) {
macro_rules! md {
($name:expr, $op:expr, $equal:expr) => {{
let inline = cx.meta_word(span, sym::inline);
let attrs = vec![cx.attribute(inline)];
MethodDef {
name: $name,
generics: Bounds::empty(),
explicit_self: borrowed_explicit_self(),
args: vec![(borrowed_self(), sym::other)],
ret_ty: Literal(path_local!(bool)),
attributes: attrs,
is_unsafe: false,
unify_fieldless_variants: true,
combine_substructure: combine_substructure(Box::new(|cx, span, substr| {
cs_op($op, $equal, cx, span, substr)
})),
}
}};
}
let ordering_ty = Literal(path_std!(cmp::Ordering));
let ret_ty = Literal(Path::new_(
pathvec_std!(option::Option),
@ -62,21 +40,6 @@ pub fn expand_deriving_partial_ord(
})),
};
// avoid defining extra methods if we can
// c-like enums, enums without any fields and structs without fields
// can safely define only `partial_cmp`.
let methods = if is_type_without_fields(item) {
vec![partial_cmp_def]
} else {
vec![
partial_cmp_def,
md!(sym::lt, true, false),
md!(sym::le, true, true),
md!(sym::gt, false, false),
md!(sym::ge, false, true),
]
};
let trait_def = TraitDef {
span,
attributes: vec![],
@ -85,39 +48,12 @@ pub fn expand_deriving_partial_ord(
generics: Bounds::empty(),
is_unsafe: false,
supports_unions: false,
methods,
methods: vec![partial_cmp_def],
associated_types: Vec::new(),
};
trait_def.expand(cx, mitem, item, push)
}
#[derive(Copy, Clone)]
pub enum OrderingOp {
PartialCmpOp,
LtOp,
LeOp,
GtOp,
GeOp,
}
pub fn some_ordering_collapsed(
cx: &mut ExtCtxt<'_>,
span: Span,
op: OrderingOp,
self_arg_tags: &[Ident],
) -> P<ast::Expr> {
let lft = cx.expr_ident(span, self_arg_tags[0]);
let rgt = cx.expr_addr_of(span, cx.expr_ident(span, self_arg_tags[1]));
let op_sym = match op {
PartialCmpOp => sym::partial_cmp,
LtOp => sym::lt,
LeOp => sym::le,
GtOp => sym::gt,
GeOp => sym::ge,
};
cx.expr_method_call(span, lft, Ident::new(op_sym, span), vec![rgt])
}
pub fn cs_partial_cmp(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_>) -> P<Expr> {
let test_id = Ident::new(sym::cmp, span);
let ordering = cx.path_global(span, cx.std_path(&[sym::cmp, sym::Ordering, sym::Equal]));
@ -171,7 +107,9 @@ pub fn cs_partial_cmp(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_
if self_args.len() != 2 {
cx.span_bug(span, "not exactly 2 arguments in `derive(PartialOrd)`")
} else {
some_ordering_collapsed(cx, span, PartialCmpOp, tag_tuple)
let lft = cx.expr_ident(span, tag_tuple[0]);
let rgt = cx.expr_addr_of(span, cx.expr_ident(span, tag_tuple[1]));
cx.expr_method_call(span, lft, Ident::new(sym::partial_cmp, span), vec![rgt])
}
}),
cx,
@ -179,124 +117,3 @@ pub fn cs_partial_cmp(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_
substr,
)
}
/// Strict inequality.
fn cs_op(
less: bool,
inclusive: bool,
cx: &mut ExtCtxt<'_>,
span: Span,
substr: &Substructure<'_>,
) -> P<Expr> {
let ordering_path = |cx: &mut ExtCtxt<'_>, name: &str| {
cx.expr_path(
cx.path_global(span, cx.std_path(&[sym::cmp, sym::Ordering, Symbol::intern(name)])),
)
};
let par_cmp = |cx: &mut ExtCtxt<'_>, span, self_f: P<Expr>, other_fs: &[P<Expr>], default| {
let other_f = match other_fs {
[o_f] => o_f,
_ => cx.span_bug(span, "not exactly 2 arguments in `derive(PartialOrd)`"),
};
// `PartialOrd::partial_cmp(self.fi, other.fi)`
let cmp_path = cx.expr_path(
cx.path_global(span, cx.std_path(&[sym::cmp, sym::PartialOrd, sym::partial_cmp])),
);
let cmp = cx.expr_call(
span,
cmp_path,
vec![cx.expr_addr_of(span, self_f), cx.expr_addr_of(span, other_f.clone())],
);
let default = ordering_path(cx, default);
// `Option::unwrap_or(_, Ordering::Equal)`
let unwrap_path = cx.expr_path(
cx.path_global(span, cx.std_path(&[sym::option, sym::Option, sym::unwrap_or])),
);
cx.expr_call(span, unwrap_path, vec![cmp, default])
};
let fold = cs_fold1(
false, // need foldr
|cx, span, subexpr, self_f, other_fs| {
// build up a series of `partial_cmp`s from the inside
// out (hence foldr) to get lexical ordering, i.e., for op ==
// `ast::lt`
//
// ```
// Ordering::then_with(
// Option::unwrap_or(
// PartialOrd::partial_cmp(self.f1, other.f1), Ordering::Equal)
// ),
// Option::unwrap_or(
// PartialOrd::partial_cmp(self.f2, other.f2), Ordering::Greater)
// )
// )
// == Ordering::Less
// ```
//
// and for op ==
// `ast::le`
//
// ```
// Ordering::then_with(
// Option::unwrap_or(
// PartialOrd::partial_cmp(self.f1, other.f1), Ordering::Equal)
// ),
// Option::unwrap_or(
// PartialOrd::partial_cmp(self.f2, other.f2), Ordering::Greater)
// )
// )
// != Ordering::Greater
// ```
//
// The optimiser should remove the redundancy. We explicitly
// get use the binops to avoid auto-deref dereferencing too many
// layers of pointers, if the type includes pointers.
// `Option::unwrap_or(PartialOrd::partial_cmp(self.fi, other.fi), Ordering::Equal)`
let par_cmp = par_cmp(cx, span, self_f, other_fs, "Equal");
// `Ordering::then_with(Option::unwrap_or(..), ..)`
let then_with_path = cx.expr_path(
cx.path_global(span, cx.std_path(&[sym::cmp, sym::Ordering, sym::then_with])),
);
cx.expr_call(span, then_with_path, vec![par_cmp, cx.lambda0(span, subexpr)])
},
|cx, args| match args {
Some((span, self_f, other_fs)) => {
let opposite = if less { "Greater" } else { "Less" };
par_cmp(cx, span, self_f, other_fs, opposite)
}
None => cx.expr_bool(span, inclusive),
},
Box::new(|cx, span, (self_args, tag_tuple), _non_self_args| {
if self_args.len() != 2 {
cx.span_bug(span, "not exactly 2 arguments in `derive(PartialOrd)`")
} else {
let op = match (less, inclusive) {
(false, false) => GtOp,
(false, true) => GeOp,
(true, false) => LtOp,
(true, true) => LeOp,
};
some_ordering_collapsed(cx, span, op, tag_tuple)
}
}),
cx,
span,
substr,
);
match *substr.fields {
EnumMatching(.., ref all_fields) | Struct(.., ref all_fields) if !all_fields.is_empty() => {
let ordering = ordering_path(cx, if less ^ inclusive { "Less" } else { "Greater" });
let comp_op = if inclusive { BinOpKind::Ne } else { BinOpKind::Eq };
cx.expr_binary(span, comp_op, fold, ordering)
}
_ => fold,
}
}

82
src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}-{closure#0}.-------.InstrumentCoverage.0.html
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@ -1,82 +0,0 @@
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<style>
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text-align: right;
filter: opacity(50%);
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.code {
color: #dddddd;
background-color: #222222;
font-family: Menlo, Monaco, monospace;
line-height: 1.4em;
border-bottom: 2px solid #222222;
white-space: pre;
display: inline-block;
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.odd {
background-color: #55bbff;
color: #223311;
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background-color: #ee7756;
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</style>
</head>
<body>
<div class="code" style="counter-reset: line 6"><span class="line"> <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
8:5-8:17: @0[4]: _3 = &amp;(*_4)
8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
8:5-8:17: @0[8]: _5 = &amp;(*_6)
8:5-8:17: @0.Call: _2 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _3, move _5) -&gt; [return: bb1, unwind: bb3]
8:5-8:17: @1[3]: _7 = std::cmp::Ordering::Less
8:5-8:17: @1.Call: _0 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _2, move _7) -&gt; [return: bb2, unwind: bb3]
8:5-8:17: @2.Return: return"><span class="annotation">@0,1,2⦊</span>patch: usize<span class="annotation">⦉@0,1,2</span></span></span></span></div>
</body>
</html>

83
src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge-{closure#0}.-------.InstrumentCoverage.0.html
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@ -1,83 +0,0 @@
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<head>
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<style>
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counter-increment: line;
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content: counter(line) ": ";
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text-align: right;
filter: opacity(50%);
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color: #dddddd;
background-color: #222222;
font-family: Menlo, Monaco, monospace;
line-height: 1.4em;
border-bottom: 2px solid #222222;
white-space: pre;
display: inline-block;
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.odd {
background-color: #55bbff;
color: #223311;
}
.even {
background-color: #ee7756;
color: #551133;
}
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--index: calc(var(--layer) - 1);
padding-top: calc(var(--index) * 0.15em);
filter:
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saturate(calc(100% - (var(--index) * 2%)))
brightness(calc(100% - (var(--index) * 1.5%)));
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.annotation {
color: #4444ff;
font-family: monospace;
font-style: italic;
display: none;
-webkit-user-select: none;
}
body:active .annotation {
/* requires holding mouse down anywhere on the page */
display: inline-block;
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span:hover .annotation {
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display: inline-block;
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</head>
<body>
<div class="code" style="counter-reset: line 5"><span class="line"> <span class="code" style="--layer: 0">major: usize,</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="7:5-7:17: @0[4]: _5 = &amp;(*(*(_1.0: &amp;&amp;usize)))
7:5-7:17: @0[5]: _4 = &amp;(*_5)
7:5-7:17: @0[8]: _7 = &amp;(*(*(_1.1: &amp;&amp;usize)))
7:5-7:17: @0[9]: _6 = &amp;(*_7)
7:5-7:17: @0.Call: _3 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _4, move _6) -&gt; [return: bb1, unwind: bb4]
7:5-7:17: @1[3]: _8 = std::cmp::Ordering::Equal
7:5-7:17: @1.Call: _2 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _3, move _8) -&gt; [return: bb2, unwind: bb4]
7:5-7:17: @2[4]: _10 = &amp;(*(_1.2: &amp;&amp;usize))
7:5-7:17: @2[6]: _11 = &amp;(*(_1.3: &amp;&amp;usize))"><span class="annotation">@0,1,2,3⦊</span>‸<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">minor: usize</span></span></div>
</body>
</html>

92
src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-ge.-------.InstrumentCoverage.0.html
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@ -1,92 +0,0 @@
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font-family: Menlo, Monaco, monospace;
line-height: 1.4em;
border-bottom: 2px solid #222222;
white-space: pre;
display: inline-block;
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.odd {
background-color: #55bbff;
color: #223311;
}
.even {
background-color: #ee7756;
color: #551133;
}
.code {
--index: calc(var(--layer) - 1);
padding-top: calc(var(--index) * 0.15em);
filter:
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brightness(calc(100% - (var(--index) * 1.5%)));
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<div class="code" style="counter-reset: line 3"><span class="line"> <span><span class="code even" style="--layer: 1" title="4:39-4:49: @0[0]: FakeRead(ForMatchedPlace, (*_2))
4:39-4:49: @0[2]: _3 = &amp;((*_2).0: usize)
4:39-4:49: @0[4]: _4 = &amp;((*_2).1: usize)
4:39-4:49: @0[6]: _5 = &amp;((*_2).2: usize)
4:39-4:49: @0[7]: FakeRead(ForMatchedPlace, (*_1))
4:39-4:49: @0[9]: _6 = &amp;((*_1).0: usize)
4:39-4:49: @0[11]: _7 = &amp;((*_1).1: usize)
4:39-4:49: @0[13]: _8 = &amp;((*_1).2: usize)
4:39-4:49: @0[20]: _14 = &amp;(*_6)
4:39-4:49: @0[21]: _13 = &amp;(*_14)
4:39-4:49: @0[24]: _16 = &amp;(*_3)
4:39-4:49: @0[25]: _15 = &amp;(*_16)
4:39-4:49: @0.Call: _12 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _13, move _15) -&gt; [return: bb1, unwind: bb5]
4:39-4:49: @1[3]: _17 = std::cmp::Ordering::Equal
4:39-4:49: @1.Call: _11 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _12, move _17) -&gt; [return: bb2, unwind: bb5]
4:39-4:49: @2[4]: _19 = &amp;_7
4:39-4:49: @2[6]: _20 = &amp;_4
4:39-4:49: @2[8]: _21 = &amp;_8
4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
</body>
</html>

82
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line-height: 1.4em;
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display: inline-block;
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span:hover .annotation {
/* requires hover over a span ONLY on its first line */
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<div class="code" style="counter-reset: line 6"><span class="line"> <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
8:5-8:17: @0[4]: _3 = &amp;(*_4)
8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
8:5-8:17: @0[8]: _5 = &amp;(*_6)
8:5-8:17: @0.Call: _2 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _3, move _5) -&gt; [return: bb1, unwind: bb3]
8:5-8:17: @1[3]: _7 = std::cmp::Ordering::Less
8:5-8:17: @1.Call: _0 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _2, move _7) -&gt; [return: bb2, unwind: bb3]
8:5-8:17: @2.Return: return"><span class="annotation">@0,1,2⦊</span>patch: usize<span class="annotation">⦉@0,1,2</span></span></span></span></div>
</body>
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<body>
<div class="code" style="counter-reset: line 5"><span class="line"> <span class="code" style="--layer: 0">major: usize,</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="7:5-7:17: @0[4]: _5 = &amp;(*(*(_1.0: &amp;&amp;usize)))
7:5-7:17: @0[5]: _4 = &amp;(*_5)
7:5-7:17: @0[8]: _7 = &amp;(*(*(_1.1: &amp;&amp;usize)))
7:5-7:17: @0[9]: _6 = &amp;(*_7)
7:5-7:17: @0.Call: _3 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _4, move _6) -&gt; [return: bb1, unwind: bb4]
7:5-7:17: @1[3]: _8 = std::cmp::Ordering::Equal
7:5-7:17: @1.Call: _2 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _3, move _8) -&gt; [return: bb2, unwind: bb4]
7:5-7:17: @2[4]: _10 = &amp;(*(_1.2: &amp;&amp;usize))
7:5-7:17: @2[6]: _11 = &amp;(*(_1.3: &amp;&amp;usize))"><span class="annotation">@0,1,2,3⦊</span>‸<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">minor: usize</span></span></div>
</body>
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<div class="code" style="counter-reset: line 3"><span class="line"> <span><span class="code even" style="--layer: 1" title="4:39-4:49: @0[0]: FakeRead(ForMatchedPlace, (*_2))
4:39-4:49: @0[2]: _3 = &amp;((*_2).0: usize)
4:39-4:49: @0[4]: _4 = &amp;((*_2).1: usize)
4:39-4:49: @0[6]: _5 = &amp;((*_2).2: usize)
4:39-4:49: @0[7]: FakeRead(ForMatchedPlace, (*_1))
4:39-4:49: @0[9]: _6 = &amp;((*_1).0: usize)
4:39-4:49: @0[11]: _7 = &amp;((*_1).1: usize)
4:39-4:49: @0[13]: _8 = &amp;((*_1).2: usize)
4:39-4:49: @0[20]: _14 = &amp;(*_6)
4:39-4:49: @0[21]: _13 = &amp;(*_14)
4:39-4:49: @0[24]: _16 = &amp;(*_3)
4:39-4:49: @0[25]: _15 = &amp;(*_16)
4:39-4:49: @0.Call: _12 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _13, move _15) -&gt; [return: bb1, unwind: bb5]
4:39-4:49: @1[3]: _17 = std::cmp::Ordering::Equal
4:39-4:49: @1.Call: _11 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _12, move _17) -&gt; [return: bb2, unwind: bb5]
4:39-4:49: @2[4]: _19 = &amp;_7
4:39-4:49: @2[6]: _20 = &amp;_4
4:39-4:49: @2[8]: _21 = &amp;_8
4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
</body>
</html>

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</head>
<body>
<div class="code" style="counter-reset: line 6"><span class="line"> <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
8:5-8:17: @0[4]: _3 = &amp;(*_4)
8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
8:5-8:17: @0[8]: _5 = &amp;(*_6)
8:5-8:17: @0.Call: _2 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _3, move _5) -&gt; [return: bb1, unwind: bb3]
8:5-8:17: @1[3]: _7 = std::cmp::Ordering::Greater
8:5-8:17: @1.Call: _0 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _2, move _7) -&gt; [return: bb2, unwind: bb3]
8:5-8:17: @2.Return: return"><span class="annotation">@0,1,2⦊</span>patch: usize<span class="annotation">⦉@0,1,2</span></span></span></span></div>
</body>
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<div class="code" style="counter-reset: line 5"><span class="line"> <span class="code" style="--layer: 0">major: usize,</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="7:5-7:17: @0[4]: _5 = &amp;(*(*(_1.0: &amp;&amp;usize)))
7:5-7:17: @0[5]: _4 = &amp;(*_5)
7:5-7:17: @0[8]: _7 = &amp;(*(*(_1.1: &amp;&amp;usize)))
7:5-7:17: @0[9]: _6 = &amp;(*_7)
7:5-7:17: @0.Call: _3 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _4, move _6) -&gt; [return: bb1, unwind: bb4]
7:5-7:17: @1[3]: _8 = std::cmp::Ordering::Equal
7:5-7:17: @1.Call: _2 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _3, move _8) -&gt; [return: bb2, unwind: bb4]
7:5-7:17: @2[4]: _10 = &amp;(*(_1.2: &amp;&amp;usize))
7:5-7:17: @2[6]: _11 = &amp;(*(_1.3: &amp;&amp;usize))"><span class="annotation">@0,1,2,3⦊</span>‸<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">minor: usize</span></span></div>
</body>
</html>

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border-bottom: 2px solid #222222;
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<div class="code" style="counter-reset: line 3"><span class="line"> <span><span class="code even" style="--layer: 1" title="4:39-4:49: @0[0]: FakeRead(ForMatchedPlace, (*_2))
4:39-4:49: @0[2]: _3 = &amp;((*_2).0: usize)
4:39-4:49: @0[4]: _4 = &amp;((*_2).1: usize)
4:39-4:49: @0[6]: _5 = &amp;((*_2).2: usize)
4:39-4:49: @0[7]: FakeRead(ForMatchedPlace, (*_1))
4:39-4:49: @0[9]: _6 = &amp;((*_1).0: usize)
4:39-4:49: @0[11]: _7 = &amp;((*_1).1: usize)
4:39-4:49: @0[13]: _8 = &amp;((*_1).2: usize)
4:39-4:49: @0[20]: _14 = &amp;(*_6)
4:39-4:49: @0[21]: _13 = &amp;(*_14)
4:39-4:49: @0[24]: _16 = &amp;(*_3)
4:39-4:49: @0[25]: _15 = &amp;(*_16)
4:39-4:49: @0.Call: _12 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _13, move _15) -&gt; [return: bb1, unwind: bb5]
4:39-4:49: @1[3]: _17 = std::cmp::Ordering::Equal
4:39-4:49: @1.Call: _11 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _12, move _17) -&gt; [return: bb2, unwind: bb5]
4:39-4:49: @2[4]: _19 = &amp;_7
4:39-4:49: @2[6]: _20 = &amp;_4
4:39-4:49: @2[8]: _21 = &amp;_8
4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
</body>
</html>

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<style>
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<body>
<div class="code" style="counter-reset: line 6"><span class="line"> <span class="code" style="--layer: 0">minor: usize, // Count: 1 - `PartialOrd` compared `minor` values in 3.2.1 vs. 3.3.0</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="8:5-8:17: @0[3]: _4 = &amp;(*(*(_1.0: &amp;&amp;usize)))
8:5-8:17: @0[4]: _3 = &amp;(*_4)
8:5-8:17: @0[7]: _6 = &amp;(*(*(_1.1: &amp;&amp;usize)))
8:5-8:17: @0[8]: _5 = &amp;(*_6)
8:5-8:17: @0.Call: _2 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _3, move _5) -&gt; [return: bb1, unwind: bb3]
8:5-8:17: @1[3]: _7 = std::cmp::Ordering::Greater
8:5-8:17: @1.Call: _0 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _2, move _7) -&gt; [return: bb2, unwind: bb3]
8:5-8:17: @2.Return: return"><span class="annotation">@0,1,2⦊</span>patch: usize<span class="annotation">⦉@0,1,2</span></span></span></span></div>
</body>
</html>

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display: inline-block;
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</style>
</head>
<body>
<div class="code" style="counter-reset: line 5"><span class="line"> <span class="code" style="--layer: 0">major: usize,</span></span>
<span class="line"><span class="code" style="--layer: 0"> </span><span><span class="code even" style="--layer: 1" title="7:5-7:17: @0[4]: _5 = &amp;(*(*(_1.0: &amp;&amp;usize)))
7:5-7:17: @0[5]: _4 = &amp;(*_5)
7:5-7:17: @0[8]: _7 = &amp;(*(*(_1.1: &amp;&amp;usize)))
7:5-7:17: @0[9]: _6 = &amp;(*_7)
7:5-7:17: @0.Call: _3 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _4, move _6) -&gt; [return: bb1, unwind: bb4]
7:5-7:17: @1[3]: _8 = std::cmp::Ordering::Equal
7:5-7:17: @1.Call: _2 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _3, move _8) -&gt; [return: bb2, unwind: bb4]
7:5-7:17: @2[4]: _10 = &amp;(*(_1.2: &amp;&amp;usize))
7:5-7:17: @2[6]: _11 = &amp;(*(_1.3: &amp;&amp;usize))"><span class="annotation">@0,1,2,3⦊</span>‸<span class="annotation">⦉@0,1,2,3</span></span></span><span class="code" style="--layer: 0">minor: usize</span></span></div>
</body>
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92
src/test/run-make-fulldeps/coverage-spanview/expected_mir_dump.partial_eq/partial_eq.{impl#2}-lt.-------.InstrumentCoverage.0.html
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}
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display: inline-block;
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span:hover .annotation {
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display: inline-block;
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</style>
</head>
<body>
<div class="code" style="counter-reset: line 3"><span class="line"> <span><span class="code even" style="--layer: 1" title="4:39-4:49: @0[0]: FakeRead(ForMatchedPlace, (*_2))
4:39-4:49: @0[2]: _3 = &amp;((*_2).0: usize)
4:39-4:49: @0[4]: _4 = &amp;((*_2).1: usize)
4:39-4:49: @0[6]: _5 = &amp;((*_2).2: usize)
4:39-4:49: @0[7]: FakeRead(ForMatchedPlace, (*_1))
4:39-4:49: @0[9]: _6 = &amp;((*_1).0: usize)
4:39-4:49: @0[11]: _7 = &amp;((*_1).1: usize)
4:39-4:49: @0[13]: _8 = &amp;((*_1).2: usize)
4:39-4:49: @0[20]: _14 = &amp;(*_6)
4:39-4:49: @0[21]: _13 = &amp;(*_14)
4:39-4:49: @0[24]: _16 = &amp;(*_3)
4:39-4:49: @0[25]: _15 = &amp;(*_16)
4:39-4:49: @0.Call: _12 = &lt;usize as std::cmp::PartialOrd&gt;::partial_cmp(move _13, move _15) -&gt; [return: bb1, unwind: bb5]
4:39-4:49: @1[3]: _17 = std::cmp::Ordering::Equal
4:39-4:49: @1.Call: _11 = std::option::Option::&lt;std::cmp::Ordering&gt;::unwrap_or(move _12, move _17) -&gt; [return: bb2, unwind: bb5]
4:39-4:49: @2[4]: _19 = &amp;_7
4:39-4:49: @2[6]: _20 = &amp;_4
4:39-4:49: @2[8]: _21 = &amp;_8
4:39-4:49: @2[10]: _22 = &amp;_5"><span class="annotation">@0,1,2,3,4⦊</span>‸<span class="annotation">⦉@0,1,2,3,4</span></span></span><span class="code" style="--layer: 0">PartialOrd</span></span></div>
</body>
</html>

60
src/test/ui/derives/derive-partial-ord.rs Normal file
View File

@ -0,0 +1,60 @@
// Checks that in a derived implementation of PartialOrd the lt, le, ge, gt methods are consistent
// with partial_cmp. Also verifies that implementation is consistent with that for tuples.
//
// run-pass
#[derive(PartialEq, PartialOrd)]
struct P(f64, f64);
fn main() {
let values: &[f64] = &[1.0, 2.0, f64::NAN];
for a in values {
for b in values {
for c in values {
for d in values {
// Check impl for a tuple.
check(&(*a, *b), &(*c, *d));
// Check derived impl.
check(&P(*a, *b), &P(*c, *d));
// Check that impls agree with each other.
assert_eq!(
PartialOrd::partial_cmp(&(*a, *b), &(*c, *d)),
PartialOrd::partial_cmp(&P(*a, *b), &P(*c, *d)),
);
}
}
}
}
}
fn check<T: PartialOrd>(a: &T, b: &T) {
use std::cmp::Ordering::*;
match PartialOrd::partial_cmp(a, b) {
None => {
assert!(!(a < b));
assert!(!(a <= b));
assert!(!(a > b));
assert!(!(a >= b));
}
Some(Equal) => {
assert!(!(a < b));
assert!(a <= b);
assert!(!(a > b));
assert!(a >= b);
}
Some(Less) => {
assert!(a < b);
assert!(a <= b);
assert!(!(a > b));
assert!(!(a >= b));
}
Some(Greater) => {
assert!(!(a < b));
assert!(!(a <= b));
assert!(a > b);
assert!(a >= b);
}
}
}

4
src/test/ui/derives/derives-span-PartialOrd-enum-struct-variant.rs
View File

@ -7,10 +7,6 @@ struct Error;
enum Enum {
A {
x: Error //~ ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
}
}

42
src/test/ui/derives/derives-span-PartialOrd-enum-struct-variant.stderr
View File

@ -8,46 +8,6 @@ LL | x: Error
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:9:6
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:9:6
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:9:6
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:9:6
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 5 previous errors
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.

4
src/test/ui/derives/derives-span-PartialOrd-enum.rs
View File

@ -7,10 +7,6 @@ struct Error;
enum Enum {
A(
Error //~ ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
)
}

42
src/test/ui/derives/derives-span-PartialOrd-enum.stderr
View File

@ -8,46 +8,6 @@ LL | Error
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum.rs:9:6
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum.rs:9:6
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum.rs:9:6
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-enum.rs:9:6
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 5 previous errors
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.

4
src/test/ui/derives/derives-span-PartialOrd-struct.rs
View File

@ -6,10 +6,6 @@ struct Error;
#[derive(PartialOrd,PartialEq)]
struct Struct {
x: Error //~ ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
}
fn main() {}

42
src/test/ui/derives/derives-span-PartialOrd-struct.stderr
View File

@ -8,46 +8,6 @@ LL | x: Error
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-struct.rs:8:5
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-struct.rs:8:5
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-struct.rs:8:5
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-struct.rs:8:5
|
LL | x: Error
| ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 5 previous errors
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.

4
src/test/ui/derives/derives-span-PartialOrd-tuple-struct.rs
View File

@ -6,10 +6,6 @@ struct Error;
#[derive(PartialOrd,PartialEq)]
struct Struct(
Error //~ ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
//~| ERROR can't compare `Error` with `Error`
);
fn main() {}

42
src/test/ui/derives/derives-span-PartialOrd-tuple-struct.stderr
View File

@ -8,46 +8,6 @@ LL | Error
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-tuple-struct.rs:8:5
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-tuple-struct.rs:8:5
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-tuple-struct.rs:8:5
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Error` with `Error`
--> $DIR/derives-span-PartialOrd-tuple-struct.rs:8:5
|
LL | Error
| ^^^^^ no implementation for `Error < Error` and `Error > Error`
|
= help: the trait `PartialOrd` is not implemented for `Error`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 5 previous errors
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.

4
src/test/ui/issues/issue-34229.rs
View File

@ -1,9 +1,5 @@
#[derive(PartialEq)] struct Comparable;
#[derive(PartialEq, PartialOrd)] struct Nope(Comparable);
//~^ ERROR can't compare `Comparable`
//~| ERROR can't compare `Comparable`
//~| ERROR can't compare `Comparable`
//~| ERROR can't compare `Comparable`
//~| ERROR can't compare `Comparable`
fn main() {}

42
src/test/ui/issues/issue-34229.stderr
View File

@ -8,46 +8,6 @@ LL | #[derive(PartialEq, PartialOrd)] struct Nope(Comparable);
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Comparable` with `Comparable`
--> $DIR/issue-34229.rs:2:46
|
LL | #[derive(PartialEq, PartialOrd)] struct Nope(Comparable);
| ^^^^^^^^^^ no implementation for `Comparable < Comparable` and `Comparable > Comparable`
|
= help: the trait `PartialOrd` is not implemented for `Comparable`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Comparable` with `Comparable`
--> $DIR/issue-34229.rs:2:46
|
LL | #[derive(PartialEq, PartialOrd)] struct Nope(Comparable);
| ^^^^^^^^^^ no implementation for `Comparable < Comparable` and `Comparable > Comparable`
|
= help: the trait `PartialOrd` is not implemented for `Comparable`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Comparable` with `Comparable`
--> $DIR/issue-34229.rs:2:46
|
LL | #[derive(PartialEq, PartialOrd)] struct Nope(Comparable);
| ^^^^^^^^^^ no implementation for `Comparable < Comparable` and `Comparable > Comparable`
|
= help: the trait `PartialOrd` is not implemented for `Comparable`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `Comparable` with `Comparable`
--> $DIR/issue-34229.rs:2:46
|
LL | #[derive(PartialEq, PartialOrd)] struct Nope(Comparable);
| ^^^^^^^^^^ no implementation for `Comparable < Comparable` and `Comparable > Comparable`
|
= help: the trait `PartialOrd` is not implemented for `Comparable`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 5 previous errors
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.

24
src/test/ui/range/range_traits-1.rs
View File

@ -4,45 +4,21 @@ use std::ops::*;
struct AllTheRanges {
a: Range<usize>,
//~^ ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR Ord
b: RangeTo<usize>,
//~^ ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR Ord
c: RangeFrom<usize>,
//~^ ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR Ord
d: RangeFull,
//~^ ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR Ord
e: RangeInclusive<usize>,
//~^ ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR Ord
f: RangeToInclusive<usize>,
//~^ ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR can't compare
//~| ERROR Ord
}

262
src/test/ui/range/range_traits-1.stderr
View File

@ -9,7 +9,7 @@ LL | a: Range<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeTo<usize>` with `std::ops::RangeTo<usize>`
--> $DIR/range_traits-1.rs:12:5
--> $DIR/range_traits-1.rs:8:5
|
LL | b: RangeTo<usize>,
| ^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeTo<usize> < std::ops::RangeTo<usize>` and `std::ops::RangeTo<usize> > std::ops::RangeTo<usize>`
@ -19,7 +19,7 @@ LL | b: RangeTo<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFrom<usize>` with `std::ops::RangeFrom<usize>`
--> $DIR/range_traits-1.rs:19:5
--> $DIR/range_traits-1.rs:11:5
|
LL | c: RangeFrom<usize>,
| ^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeFrom<usize> < std::ops::RangeFrom<usize>` and `std::ops::RangeFrom<usize> > std::ops::RangeFrom<usize>`
@ -29,7 +29,7 @@ LL | c: RangeFrom<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFull` with `std::ops::RangeFull`
--> $DIR/range_traits-1.rs:26:5
--> $DIR/range_traits-1.rs:14:5
|
LL | d: RangeFull,
| ^^^^^^^^^^^^ no implementation for `std::ops::RangeFull < std::ops::RangeFull` and `std::ops::RangeFull > std::ops::RangeFull`
@ -39,7 +39,7 @@ LL | d: RangeFull,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeInclusive<usize>` with `std::ops::RangeInclusive<usize>`
--> $DIR/range_traits-1.rs:33:5
--> $DIR/range_traits-1.rs:17:5
|
LL | e: RangeInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeInclusive<usize> < std::ops::RangeInclusive<usize>` and `std::ops::RangeInclusive<usize> > std::ops::RangeInclusive<usize>`
@ -49,247 +49,7 @@ LL | e: RangeInclusive<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeToInclusive<usize>` with `std::ops::RangeToInclusive<usize>`
--> $DIR/range_traits-1.rs:40:5
|
LL | f: RangeToInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeToInclusive<usize> < std::ops::RangeToInclusive<usize>` and `std::ops::RangeToInclusive<usize> > std::ops::RangeToInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeToInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::Range<usize>` with `std::ops::Range<usize>`
--> $DIR/range_traits-1.rs:5:5
|
LL | a: Range<usize>,
| ^^^^^^^^^^^^^^^ no implementation for `std::ops::Range<usize> < std::ops::Range<usize>` and `std::ops::Range<usize> > std::ops::Range<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::Range<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeTo<usize>` with `std::ops::RangeTo<usize>`
--> $DIR/range_traits-1.rs:12:5
|
LL | b: RangeTo<usize>,
| ^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeTo<usize> < std::ops::RangeTo<usize>` and `std::ops::RangeTo<usize> > std::ops::RangeTo<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeTo<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFrom<usize>` with `std::ops::RangeFrom<usize>`
--> $DIR/range_traits-1.rs:19:5
|
LL | c: RangeFrom<usize>,
| ^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeFrom<usize> < std::ops::RangeFrom<usize>` and `std::ops::RangeFrom<usize> > std::ops::RangeFrom<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFrom<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFull` with `std::ops::RangeFull`
--> $DIR/range_traits-1.rs:26:5
|
LL | d: RangeFull,
| ^^^^^^^^^^^^ no implementation for `std::ops::RangeFull < std::ops::RangeFull` and `std::ops::RangeFull > std::ops::RangeFull`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFull`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeInclusive<usize>` with `std::ops::RangeInclusive<usize>`
--> $DIR/range_traits-1.rs:33:5
|
LL | e: RangeInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeInclusive<usize> < std::ops::RangeInclusive<usize>` and `std::ops::RangeInclusive<usize> > std::ops::RangeInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeToInclusive<usize>` with `std::ops::RangeToInclusive<usize>`
--> $DIR/range_traits-1.rs:40:5
|
LL | f: RangeToInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeToInclusive<usize> < std::ops::RangeToInclusive<usize>` and `std::ops::RangeToInclusive<usize> > std::ops::RangeToInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeToInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::Range<usize>` with `std::ops::Range<usize>`
--> $DIR/range_traits-1.rs:5:5
|
LL | a: Range<usize>,
| ^^^^^^^^^^^^^^^ no implementation for `std::ops::Range<usize> < std::ops::Range<usize>` and `std::ops::Range<usize> > std::ops::Range<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::Range<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeTo<usize>` with `std::ops::RangeTo<usize>`
--> $DIR/range_traits-1.rs:12:5
|
LL | b: RangeTo<usize>,
| ^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeTo<usize> < std::ops::RangeTo<usize>` and `std::ops::RangeTo<usize> > std::ops::RangeTo<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeTo<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFrom<usize>` with `std::ops::RangeFrom<usize>`
--> $DIR/range_traits-1.rs:19:5
|
LL | c: RangeFrom<usize>,
| ^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeFrom<usize> < std::ops::RangeFrom<usize>` and `std::ops::RangeFrom<usize> > std::ops::RangeFrom<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFrom<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFull` with `std::ops::RangeFull`
--> $DIR/range_traits-1.rs:26:5
|
LL | d: RangeFull,
| ^^^^^^^^^^^^ no implementation for `std::ops::RangeFull < std::ops::RangeFull` and `std::ops::RangeFull > std::ops::RangeFull`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFull`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeInclusive<usize>` with `std::ops::RangeInclusive<usize>`
--> $DIR/range_traits-1.rs:33:5
|
LL | e: RangeInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeInclusive<usize> < std::ops::RangeInclusive<usize>` and `std::ops::RangeInclusive<usize> > std::ops::RangeInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeToInclusive<usize>` with `std::ops::RangeToInclusive<usize>`
--> $DIR/range_traits-1.rs:40:5
|
LL | f: RangeToInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeToInclusive<usize> < std::ops::RangeToInclusive<usize>` and `std::ops::RangeToInclusive<usize> > std::ops::RangeToInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeToInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::Range<usize>` with `std::ops::Range<usize>`
--> $DIR/range_traits-1.rs:5:5
|
LL | a: Range<usize>,
| ^^^^^^^^^^^^^^^ no implementation for `std::ops::Range<usize> < std::ops::Range<usize>` and `std::ops::Range<usize> > std::ops::Range<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::Range<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeTo<usize>` with `std::ops::RangeTo<usize>`
--> $DIR/range_traits-1.rs:12:5
|
LL | b: RangeTo<usize>,
| ^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeTo<usize> < std::ops::RangeTo<usize>` and `std::ops::RangeTo<usize> > std::ops::RangeTo<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeTo<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFrom<usize>` with `std::ops::RangeFrom<usize>`
--> $DIR/range_traits-1.rs:19:5
|
LL | c: RangeFrom<usize>,
| ^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeFrom<usize> < std::ops::RangeFrom<usize>` and `std::ops::RangeFrom<usize> > std::ops::RangeFrom<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFrom<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFull` with `std::ops::RangeFull`
--> $DIR/range_traits-1.rs:26:5
|
LL | d: RangeFull,
| ^^^^^^^^^^^^ no implementation for `std::ops::RangeFull < std::ops::RangeFull` and `std::ops::RangeFull > std::ops::RangeFull`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFull`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeInclusive<usize>` with `std::ops::RangeInclusive<usize>`
--> $DIR/range_traits-1.rs:33:5
|
LL | e: RangeInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeInclusive<usize> < std::ops::RangeInclusive<usize>` and `std::ops::RangeInclusive<usize> > std::ops::RangeInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeToInclusive<usize>` with `std::ops::RangeToInclusive<usize>`
--> $DIR/range_traits-1.rs:40:5
|
LL | f: RangeToInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeToInclusive<usize> < std::ops::RangeToInclusive<usize>` and `std::ops::RangeToInclusive<usize> > std::ops::RangeToInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeToInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::Range<usize>` with `std::ops::Range<usize>`
--> $DIR/range_traits-1.rs:5:5
|
LL | a: Range<usize>,
| ^^^^^^^^^^^^^^^ no implementation for `std::ops::Range<usize> < std::ops::Range<usize>` and `std::ops::Range<usize> > std::ops::Range<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::Range<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeTo<usize>` with `std::ops::RangeTo<usize>`
--> $DIR/range_traits-1.rs:12:5
|
LL | b: RangeTo<usize>,
| ^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeTo<usize> < std::ops::RangeTo<usize>` and `std::ops::RangeTo<usize> > std::ops::RangeTo<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeTo<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFrom<usize>` with `std::ops::RangeFrom<usize>`
--> $DIR/range_traits-1.rs:19:5
|
LL | c: RangeFrom<usize>,
| ^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeFrom<usize> < std::ops::RangeFrom<usize>` and `std::ops::RangeFrom<usize> > std::ops::RangeFrom<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFrom<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeFull` with `std::ops::RangeFull`
--> $DIR/range_traits-1.rs:26:5
|
LL | d: RangeFull,
| ^^^^^^^^^^^^ no implementation for `std::ops::RangeFull < std::ops::RangeFull` and `std::ops::RangeFull > std::ops::RangeFull`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeFull`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeInclusive<usize>` with `std::ops::RangeInclusive<usize>`
--> $DIR/range_traits-1.rs:33:5
|
LL | e: RangeInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeInclusive<usize> < std::ops::RangeInclusive<usize>` and `std::ops::RangeInclusive<usize> > std::ops::RangeInclusive<usize>`
|
= help: the trait `PartialOrd` is not implemented for `std::ops::RangeInclusive<usize>`
= note: required by `std::cmp::PartialOrd::partial_cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: can't compare `std::ops::RangeToInclusive<usize>` with `std::ops::RangeToInclusive<usize>`
--> $DIR/range_traits-1.rs:40:5
--> $DIR/range_traits-1.rs:20:5
|
LL | f: RangeToInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `std::ops::RangeToInclusive<usize> < std::ops::RangeToInclusive<usize>` and `std::ops::RangeToInclusive<usize> > std::ops::RangeToInclusive<usize>`
@ -308,7 +68,7 @@ LL | a: Range<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `std::ops::RangeTo<usize>: Ord` is not satisfied
--> $DIR/range_traits-1.rs:12:5
--> $DIR/range_traits-1.rs:8:5
|
LL | b: RangeTo<usize>,
| ^^^^^^^^^^^^^^^^^ the trait `Ord` is not implemented for `std::ops::RangeTo<usize>`
@ -317,7 +77,7 @@ LL | b: RangeTo<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `std::ops::RangeFrom<usize>: Ord` is not satisfied
--> $DIR/range_traits-1.rs:19:5
--> $DIR/range_traits-1.rs:11:5
|
LL | c: RangeFrom<usize>,
| ^^^^^^^^^^^^^^^^^^^ the trait `Ord` is not implemented for `std::ops::RangeFrom<usize>`
@ -326,7 +86,7 @@ LL | c: RangeFrom<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `std::ops::RangeFull: Ord` is not satisfied
--> $DIR/range_traits-1.rs:26:5
--> $DIR/range_traits-1.rs:14:5
|
LL | d: RangeFull,
| ^^^^^^^^^^^^ the trait `Ord` is not implemented for `std::ops::RangeFull`
@ -335,7 +95,7 @@ LL | d: RangeFull,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `std::ops::RangeInclusive<usize>: Ord` is not satisfied
--> $DIR/range_traits-1.rs:33:5
--> $DIR/range_traits-1.rs:17:5
|
LL | e: RangeInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Ord` is not implemented for `std::ops::RangeInclusive<usize>`
@ -344,7 +104,7 @@ LL | e: RangeInclusive<usize>,
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `std::ops::RangeToInclusive<usize>: Ord` is not satisfied
--> $DIR/range_traits-1.rs:40:5
--> $DIR/range_traits-1.rs:20:5
|
LL | f: RangeToInclusive<usize>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Ord` is not implemented for `std::ops::RangeToInclusive<usize>`
@ -352,6 +112,6 @@ LL | f: RangeToInclusive<usize>,
= note: required by `std::cmp::Ord::cmp`
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 36 previous errors
error: aborting due to 12 previous errors
For more information about this error, try `rustc --explain E0277`.