[atomicfu-JVM] Preparation for commonization of JVM and K/N transformers

The following updates in the JVM/IR plugin were made: * Lots of refactoring with preparation for K/N support: commonization of transformations. * Improved error handling (checks for visibility constraints, appending message about usage constraints in case of an error). * Explicit requirements for the visibility of atomic properties: to prevent leaking they should be private/internal or be members of private/internal classes. * Fixed visibility of generated properties: volatile properties are always private and atomic updaters have the same visibility as the original atomic property. * Volatile fields are generated from scratch and original atomic properties are removed. * Delegated properties support is fixed (only declaration in the same scope is allowed). * Non-inline atomic extensions are forbidden. * For top-level atomics: only one wrapper class per file (with corresponding visibility) is generated. * Bug fixes. The corresponding tickets: https://github.com/Kotlin/kotlinx-atomicfu/issues/322 KT-60528 Merge-request: KT-MR-10579 Merged-by: Maria Sokolova <maria.sokolova@jetbrains.com>
2023-07-20 13:59:23 +00:00
parent 6ca95dc338
commit 5c5367d377
92 changed files with 3480 additions and 2575 deletions
@@ -0,0 +1,61 @@
+import kotlinx.atomicfu.*
+import kotlin.test.*
+
+class LockFreeLongCounterTest {
+    private inline fun testWith(g: LockFreeLongCounter.() -> Long) {
+        val c = LockFreeLongCounter()
+        assertEquals(0L, c.g())
+        assertEquals(1L, c.increment())
+        assertEquals(1L, c.g())
+        assertEquals(2L, c.increment())
+        assertEquals(2L, c.g())
+    }
+
+    fun testBasic() = testWith { get() }
+
+    fun testGetInner() = testWith { getInner() }
+
+    fun testAdd2() {
+        val c = LockFreeLongCounter()
+        c.add2()
+        assertEquals(2L, c.get())
+        c.add2()
+        assertEquals(4L, c.get())
+    }
+
+    fun testSetM2() {
+        val c = LockFreeLongCounter()
+        c.setM2()
+        assertEquals(-2L, c.get())
+    }
+}
+
+class LockFreeLongCounter {
+    private val counter = atomic(0L)
+
+    fun get(): Long = counter.value
+
+    fun increment(): Long = counter.incrementAndGet()
+
+    fun add2() = counter.getAndAdd(2)
+
+    fun setM2() {
+        counter.value = -2L // LDC instruction here
+    }
+
+    fun getInner(): Long = Inner().getFromOuter()
+
+    // testing how an inner class can get access to it
+    private inner class Inner {
+        fun getFromOuter(): Long = counter.value
+    }
+}
+
+fun box(): String {
+    val testClass = LockFreeLongCounterTest()
+    testClass.testBasic()
+    testClass.testAdd2()
+    testClass.testSetM2()
+    testClass.testGetInner()
+    return "OK"
+}