Cache missing exception constructors to speed-up non-copyable exception recovery

qwwdfsad · qwwdfsad · commit 41319d58cefd · 2018-12-07T19:10:59.000+03:00
diff --git a/core/kotlinx-coroutines-core/src/internal/ExceptionsConstuctor.kt b/core/kotlinx-coroutines-core/src/internal/ExceptionsConstuctor.kt
@@ -40,6 +40,6 @@ internal fun <E : Throwable> tryCopyException(exception: E): E? {
         }
     }
 
-    cacheLock.write { exceptionConstructors[exception.javaClass] = ctor }
+    cacheLock.write { exceptionConstructors[exception.javaClass] = (ctor ?: { null }) }
     return ctor?.invoke(exception) as E?
 }

Original file line number	Diff line number	Diff line change
`@@ -40,6 +40,6 @@ internal fun <E : Throwable> tryCopyException(exception: E): E? {`
`40`	`40`	`}`
`41`	`41`	`}`
`42`	`42`
`43`		`- cacheLock.write { exceptionConstructors[exception.javaClass] = ctor }`
	`43`	`+ cacheLock.write { exceptionConstructors[exception.javaClass] = (ctor ?: { null }) }`
`44`	`44`	`return ctor?.invoke(exception) as E?`
`45`	`45`	`}`