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88c743de
编写于
11月 17, 2014
作者:
B
bors
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auto merge of #19007 : huonw/rust/more-marker-impls, r=alexcrichton
Useful for #[deriving].
上级
0047dbe5
f9752438
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src/libcore/kinds.rs
src/libcore/kinds.rs
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未找到文件。
src/libcore/kinds.rs
浏览文件 @
88c743de
...
...
@@ -132,7 +132,7 @@ pub mod marker {
/// (for example, `S<&'static int>` is a subtype of `S<&'a int>`
/// for some lifetime `'a`, but not the other way around).
#[lang=
"covariant_type"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
CovariantType
<
T
>
;
/// A marker type whose type parameter `T` is considered to be
...
...
@@ -175,7 +175,7 @@ pub mod marker {
/// function requires arguments of type `T`, it must also accept
/// arguments of type `U`, hence such a conversion is safe.
#[lang=
"contravariant_type"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
ContravariantType
<
T
>
;
/// A marker type whose type parameter `T` is considered to be
...
...
@@ -200,7 +200,7 @@ pub mod marker {
/// never written, but in fact `Cell` uses unsafe code to achieve
/// interior mutability.
#[lang=
"invariant_type"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
InvariantType
<
T
>
;
/// As `CovariantType`, but for lifetime parameters. Using
...
...
@@ -220,7 +220,7 @@ pub mod marker {
/// For more information about variance, refer to this Wikipedia
/// article <http://en.wikipedia.org/wiki/Variance_%28computer_science%29>.
#[lang=
"covariant_lifetime"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
CovariantLifetime
<
'a
>
;
/// As `ContravariantType`, but for lifetime parameters. Using
...
...
@@ -236,7 +236,7 @@ pub mod marker {
/// For more information about variance, refer to this Wikipedia
/// article <http://en.wikipedia.org/wiki/Variance_%28computer_science%29>.
#[lang=
"contravariant_lifetime"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
ContravariantLifetime
<
'a
>
;
/// As `InvariantType`, but for lifetime parameters. Using
...
...
@@ -247,7 +247,7 @@ pub mod marker {
/// and this pointer is itself stored in an inherently mutable
/// location (such as a `Cell`).
#[lang=
"invariant_lifetime"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
InvariantLifetime
<
'a
>
;
/// A type which is considered "not sendable", meaning that it cannot
...
...
@@ -255,26 +255,26 @@ pub mod marker {
/// typically embedded in other types, such as `Gc`, to ensure that
/// their instances remain thread-local.
#[lang=
"no_send_bound"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
NoSend
;
/// A type which is considered "not POD", meaning that it is not
/// implicitly copyable. This is typically embedded in other types to
/// ensure that they are never copied, even if they lack a destructor.
#[lang=
"no_copy_bound"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
NoCopy
;
/// A type which is considered "not sync", meaning that
/// its contents are not threadsafe, hence they cannot be
/// shared between tasks.
#[lang=
"no_sync_bound"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
NoSync
;
/// A type which is considered managed by the GC. This is typically
/// embedded in other types.
#[lang=
"managed_bound"
]
#[deriving(
PartialEq,Clone
)]
#[deriving(
Clone,
PartialEq,
Eq,
PartialOrd,
Ord
)]
pub
struct
Managed
;
}
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