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Mirai
Commits
162dfb7c
Commit
162dfb7c
authored
Apr 20, 2020
by
Him188
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Improve performance
parent
c4b3eade
Changes
1
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1 changed file
with
9 additions
and
8 deletions
+9
-8
mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/CombinedMessage.kt
...in/kotlin/net.mamoe.mirai/message/data/CombinedMessage.kt
+9
-8
No files found.
mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/CombinedMessage.kt
View file @
162dfb7c
...
@@ -34,7 +34,7 @@ internal constructor(
...
@@ -34,7 +34,7 @@ internal constructor(
@JvmField
internal
val
left
:
Message
,
// 必须已经完成 constrain single
@JvmField
internal
val
left
:
Message
,
// 必须已经完成 constrain single
@JvmField
internal
val
tail
:
Message
@JvmField
internal
val
tail
:
Message
)
:
Message
,
MessageChain
{
)
:
Message
,
MessageChain
{
@OptIn
(
MiraiExperimentalAPI
::
class
)
fun
asSequence
():
Sequence
<
SingleMessage
>
=
sequence
{
fun
asSequence
():
Sequence
<
SingleMessage
>
=
sequence
{
yieldCombinedOrElementsFlatten
(
this
@CombinedMessage
)
yieldCombinedOrElementsFlatten
(
this
@CombinedMessage
)
}
}
...
@@ -43,7 +43,8 @@ internal constructor(
...
@@ -43,7 +43,8 @@ internal constructor(
return
asSequence
().
iterator
()
return
asSequence
().
iterator
()
}
}
override
val
size
:
Int
by
lazy
{
override
val
size
:
Int
get
()
=
kotlin
.
run
{
var
size
=
0
var
size
=
0
size
+=
if
(
left
is
MessageChain
)
left
.
size
else
1
size
+=
if
(
left
is
MessageChain
)
left
.
size
else
1
size
+=
if
(
tail
is
MessageChain
)
tail
.
size
else
1
size
+=
if
(
tail
is
MessageChain
)
tail
.
size
else
1
...
@@ -76,7 +77,7 @@ internal constructor(
...
@@ -76,7 +77,7 @@ internal constructor(
private
suspend
fun
SequenceScope
<
SingleMessage
>.
yieldCombinedOrElementsFlatten
(
message
:
Message
)
{
private
suspend
fun
SequenceScope
<
SingleMessage
>.
yieldCombinedOrElementsFlatten
(
message
:
Message
)
{
when
(
message
)
{
when
(
message
)
{
is
CombinedMessage
->
{
is
CombinedMessage
->
{
// fast path
, 避免创建新的 iterator, 也不会挂起协程
// fast path
yieldCombinedOrElementsFlatten
(
message
.
left
)
yieldCombinedOrElementsFlatten
(
message
.
left
)
yieldCombinedOrElementsFlatten
(
message
.
tail
)
yieldCombinedOrElementsFlatten
(
message
.
tail
)
}
}
...
...
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