[K/N][build] Change MetaVersion to inline class from enum

Support meta versions strings other than pre-defined. All enum entries
were left for source-level compatibility.

compiler/util-io/build.gradle.kts

@@ -19,7 +19,7 @@ tasks {
         kotlinOptions {
             languageVersion = "1.4"
             apiVersion = "1.4"
-            freeCompilerArgs += "-Xsuppress-version-warnings"
+            freeCompilerArgs += listOf("-Xsuppress-version-warnings", "-Xinline-classes")
         }
     }
 }

compiler/util-io/src/org/jetbrains/kotlin/konan/MetaVersion.kt

@@ -1,25 +1,25 @@
 /*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
-
 package org.jetbrains.kotlin.konan
 
-enum class MetaVersion(val metaString: String) {
-    DEV("dev"),
-    DEV_GOOGLE("dev-google-pr"),
-    EAP("eap"),
-    BETA("beta"),
-    M1("M1"),
-    M2("M2"),
-    RC("RC"),
-    PUB("PUB"),
-    RELEASE("release");
-
+inline class MetaVersion(val metaString: String) {
     companion object {
-        fun findAppropriate(metaString: String): MetaVersion {
-            return values().find { it.metaString.equals(metaString, ignoreCase = true) }
-                ?: if (metaString.isBlank()) RELEASE else error("Unknown meta version: $metaString")
-        }
+        // Following meta versions are left for source-level compatibility
+        val DEV = MetaVersion("dev")
+        val DEV_GOOGLE = MetaVersion("dev-google-pr")
+        val EAP = MetaVersion("eap")
+        val BETA = MetaVersion("Beta")
+        val M1 = MetaVersion("M1")
+        val M2 = MetaVersion("M2")
+        val RC = MetaVersion("RC")
+        val PUB = MetaVersion("PUB")
+        val RELEASE = MetaVersion("release")
+
+        fun findAppropriate(metaString: String): MetaVersion =
+            listOf(DEV, DEV_GOOGLE, EAP, BETA, M1, M2, RC, PUB, RELEASE)
+                .find { it.metaString.equals(metaString, ignoreCase = true) }
+                ?: if (metaString.isBlank()) RELEASE else MetaVersion(metaString)
     }
 }

compiler/util-io/test/org/jetbrains/kotlin/native/NativeCompilerVersionTest.kt

@@ -90,7 +90,6 @@ class NativeCompilerVersionTest {
         assertFailsWith<IllegalArgumentException> { CompilerVersion.fromString("1.5.30-M1-dev-123") }
         assertFailsWith<IllegalArgumentException> { CompilerVersion.fromString("1.5.30-M1-release-123") }
         assertFailsWith<IllegalArgumentException> { CompilerVersion.fromString("1.5.30.40-release-123") }
-        assertFailsWith<IllegalStateException> { CompilerVersion.fromString("1.6.0-M3-123") }
     }
 
     @Test
@@ -123,4 +122,43 @@ class NativeCompilerVersionTest {
         }
         assertEquals("1.5.30-PUB-140", CompilerVersionImpl(MetaVersion.PUB, 1, 5, 30, -1, 140).toString())
     }
+
+    @Test
+    fun betasAndRCs() {
+        "1.7.0-RC".parseCompilerVersion().apply {
+            assertEquals(1, major)
+            assertEquals(7, minor)
+            assertEquals(0, maintenance)
+            assertEquals(MetaVersion.RC, meta)
+            assertEquals(-1, build)
+        }
+        "1.7.0-RC2".parseCompilerVersion().apply {
+            assertEquals(1, major)
+            assertEquals(7, minor)
+            assertEquals(0, maintenance)
+            assertEquals(MetaVersion("RC2"), meta)
+            assertEquals(-1, build)
+        }
+        "1.7.0-RC2-123".parseCompilerVersion().apply {
+            assertEquals(1, major)
+            assertEquals(7, minor)
+            assertEquals(0, maintenance)
+            assertEquals(MetaVersion("RC2"), meta)
+            assertEquals(123, build)
+        }
+        "1.7.0-Beta".parseCompilerVersion().apply {
+            assertEquals(1, major)
+            assertEquals(7, minor)
+            assertEquals(0, maintenance)
+            assertEquals(MetaVersion.BETA, meta)
+            assertEquals(-1, build)
+        }
+        "1.7.0-Beta2".parseCompilerVersion().apply {
+            assertEquals(1, major)
+            assertEquals(7, minor)
+            assertEquals(0, maintenance)
+            assertEquals(MetaVersion("Beta2"), meta)
+            assertEquals(-1, build)
+        }
+    }
 }

dependencies/kotlin-build-gradle-plugin/src/VersionGenerator.kt

@@ -81,9 +81,9 @@ open class VersionGenerator : DefaultTask() {
     @Input
     open val buildNumber = project.findProperty("build.number")?.toString()
 
-    @Input
+    @get:Input
     open val meta = (project.findProperty("konanMetaVersion") as? String
-        ?: kotlinNativeProperties["konanMetaVersion"])?.let { MetaVersion.valueOf(it.toString().toUpperCase()) }
+        ?: kotlinNativeProperties["konanMetaVersion"])?.let { MetaVersion.findAppropriate(it.toString()) }
         ?: MetaVersion.DEV
 
     fun defaultVersionFileLocation() {