1.3 migration: make inspections working for non-experimental coroutines

2018-07-23 18:55:51 +03:00
parent 76b9b579bc
commit cc1d9e88d5
16 changed files with 225 additions and 14 deletions
@@ -0,0 +1,61 @@
+package kotlinx.coroutines.experimental
+
+interface Deferred<T> {
+    suspend fun await(): T
+}
+
+interface CoroutineContext
+
+object DefaultContext : CoroutineContext
+
+enum class CoroutineStart {
+    DEFAULT,
+    LAZY,
+    ATOMIC,
+    UNDISPATCHED
+}
+
+interface Job
+
+fun <T> async(
+    context: CoroutineContext = DefaultContext,
+    start: CoroutineStart = CoroutineStart.DEFAULT,
+    parent: Job? = null,
+    f: suspend () -> T
+): Deferred<T> {
+    TODO()
+}
+
+fun test() {
+    async { 42 }
+}
+
+fun useIt(d: Deferred<Int>) {}
+
+fun falsePositives() {
+    async { 3 }.await()
+    val res = async { 13 }
+    useIt(async { 7 })
+}
+
+class User
+
+interface DbHandler {
+    fun getUser(id: Long): Deferred<User>
+    fun doStuff(): Deferred<Unit>
+}
+
+fun DbHandler.test() {
+    getUser(42L)
+    val user = getUser(42L).await()
+    doStuff()
+    doStuff().await()
+}
+
+operator fun Deferred<Int>.unaryPlus() = this
+operator fun Deferred<Int>.plus(arg: Int) = this
+
+fun moreFalsePositives() {
+    +(async { 0 })
+    async { -1 } + 1
+}
@@ -26,4 +26,31 @@
        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Deferred result is never used</problem_class>
        <description>Deferred result is never used</description>
    </problem>
+    <problem>
+        <file>experimental.kt</file>
+        <line>30</line>
+        <module>light_idea_test_case</module>
+        <package>&lt;default&gt;</package>
+        <entry_point TYPE="file" FQNAME="temp:///src/experimental.kt" />
+        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Deferred result is never used</problem_class>
+        <description>Deferred result is never used</description>
+    </problem>
+    <problem>
+        <file>experimental.kt</file>
+        <line>49</line>
+        <module>light_idea_test_case</module>
+        <package>&lt;default&gt;</package>
+        <entry_point TYPE="file" FQNAME="temp:///src/experimental.kt" />
+        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Deferred result is never used</problem_class>
+        <description>Deferred result is never used</description>
+    </problem>
+    <problem>
+        <file>experimental.kt</file>
+        <line>51</line>
+        <module>light_idea_test_case</module>
+        <package>&lt;default&gt;</package>
+        <entry_point TYPE="file" FQNAME="temp:///src/experimental.kt" />
+        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Deferred result is never used</problem_class>
+        <description>Deferred result is never used</description>
+    </problem>
 </problems>
@@ -1,4 +1,4 @@
-package kotlinx.coroutines.experimental
+package kotlinx.coroutines

 interface Deferred<T> {
    suspend fun await(): T