-
Notifications
You must be signed in to change notification settings - Fork 7.3k
/
KotlinExtensions.kt
125 lines (113 loc) · 3.93 KB
/
KotlinExtensions.kt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
/*
* Copyright (C) 2018 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
@file:JvmName("KotlinExtensions")
package retrofit2
import kotlin.coroutines.intrinsics.COROUTINE_SUSPENDED
import kotlin.coroutines.intrinsics.intercepted
import kotlin.coroutines.intrinsics.suspendCoroutineUninterceptedOrReturn
import kotlin.coroutines.resume
import kotlin.coroutines.resumeWithException
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.suspendCancellableCoroutine
inline fun <reified T : Any> Retrofit.create(): T = create(T::class.java)
suspend fun <T : Any> Call<T>.await(): T {
return suspendCancellableCoroutine { continuation ->
continuation.invokeOnCancellation {
cancel()
}
enqueue(object : Callback<T> {
override fun onResponse(call: Call<T>, response: Response<T>) {
if (response.isSuccessful) {
val body = response.body()
if (body == null) {
val invocation = call.request().tag(Invocation::class.java)!!
val service = invocation.service()
val method = invocation.method()
val e = KotlinNullPointerException(
"Response from ${service.name}.${method.name}" +
" was null but response body type was declared as non-null",
)
continuation.resumeWithException(e)
} else {
continuation.resume(body)
}
} else {
continuation.resumeWithException(HttpException(response))
}
}
override fun onFailure(call: Call<T>, t: Throwable) {
continuation.resumeWithException(t)
}
})
}
}
@JvmName("awaitNullable")
suspend fun <T : Any> Call<T?>.await(): T? {
return suspendCancellableCoroutine { continuation ->
continuation.invokeOnCancellation {
cancel()
}
enqueue(object : Callback<T?> {
override fun onResponse(call: Call<T?>, response: Response<T?>) {
if (response.isSuccessful) {
continuation.resume(response.body())
} else {
continuation.resumeWithException(HttpException(response))
}
}
override fun onFailure(call: Call<T?>, t: Throwable) {
continuation.resumeWithException(t)
}
})
}
}
@JvmName("awaitUnit")
suspend fun Call<Unit>.await() {
@Suppress("UNCHECKED_CAST")
(this as Call<Unit?>).await()
}
suspend fun <T> Call<T>.awaitResponse(): Response<T> {
return suspendCancellableCoroutine { continuation ->
continuation.invokeOnCancellation {
cancel()
}
enqueue(object : Callback<T> {
override fun onResponse(call: Call<T>, response: Response<T>) {
continuation.resume(response)
}
override fun onFailure(call: Call<T>, t: Throwable) {
continuation.resumeWithException(t)
}
})
}
}
/**
* Force the calling coroutine to suspend before throwing [this].
*
* This is needed when a checked exception is synchronously caught in a [java.lang.reflect.Proxy]
* invocation to avoid being wrapped in [java.lang.reflect.UndeclaredThrowableException].
*
* The implementation is derived from:
* https://github.com/Kotlin/kotlinx.coroutines/pull/1667#issuecomment-556106349
*/
internal suspend fun Throwable.suspendAndThrow(): Nothing {
suspendCoroutineUninterceptedOrReturn<Nothing> { continuation ->
Dispatchers.Default.dispatch(continuation.context) {
continuation.intercepted().resumeWithException(this@suspendAndThrow)
}
COROUTINE_SUSPENDED
}
}