Report a warning or error if an old language version or API version is used

#KT-25823 Fixed

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt

@@ -304,6 +304,18 @@ abstract class CommonCompilerArguments : CommonToolArguments() {
             )
         }
 
+        val deprecatedVersion = when {
+            languageVersion < LanguageVersion.FIRST_SUPPORTED -> "Language version ${languageVersion.versionString}"
+            apiVersion < LanguageVersion.FIRST_SUPPORTED -> "API version ${apiVersion.versionString}"
+            else -> null
+        }
+        if (deprecatedVersion != null) {
+            collector.report(
+                CompilerMessageSeverity.STRONG_WARNING,
+                "$deprecatedVersion is deprecated and its support will be removed in a future version of Kotlin"
+            )
+        }
+
         if (progressiveMode && languageVersion < LanguageVersion.LATEST_STABLE) {
             collector.report(
                 CompilerMessageSeverity.STRONG_WARNING,

compiler/testData/cli/js/languageVersion.args

@@ -2,4 +2,4 @@ $TESTDATA_DIR$/languageVersion.kt
 -output
 $TEMP_DIR$/out.js
 -language-version
-1.0
+1.2

compiler/testData/cli/js/languageVersion.kt

@@ -1,5 +1,5 @@
 package test
 
-sealed class Base
+annotation class Outer {
-
+    class Nested
-class Derived : Base()
+}

compiler/testData/cli/js/languageVersion.out

@@ -1,4 +1,4 @@
-compiler/testData/cli/js/languageVersion.kt:5:17: error: this type is sealed, so it can be inherited by only its own nested classes or objects
+compiler/testData/cli/js/languageVersion.kt:4:5: error: members are not allowed in annotation class
-class Derived : Base()
+    class Nested
-                ^
+    ^
 COMPILATION_ERROR

compiler/testData/cli/jvm/apiVersion.args

@@ -2,4 +2,4 @@ $TESTDATA_DIR$/apiVersion.kt
 -d
 $TEMP_DIR$
 -api-version
-1.0
+1.2

compiler/testData/cli/jvm/apiVersion.kt

@@ -1,3 +1,3 @@
 fun test() {
-    ""::class.isInstance(42)
+    ""::class.sealedSubclasses
 }

compiler/testData/cli/jvm/apiVersion.out

@@ -1,7 +1,4 @@
-compiler/testData/cli/jvm/apiVersion.kt:2:5: error: the feature "bound callable references" is only available since API version 1.1
+compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: sealedSubclasses
-    ""::class.isInstance(42)
+    ""::class.sealedSubclasses
-    ^
-compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: isInstance
-    ""::class.isInstance(42)
               ^
 COMPILATION_ERROR

compiler/testData/cli/jvm/apiVersion1.0.out

@@ -1,3 +1,4 @@
+warning: language version 1.1 is deprecated and its support will be removed in a future version of Kotlin
 compiler/testData/cli/jvm/apiVersion1.0.kt:8:1: error: the feature "coroutines" is only available since API version 1.1 (see: https://kotlinlang.org/docs/diagnostics/experimental-coroutines)
 suspend fun test() {
 ^

compiler/testData/cli/jvm/apiVersionAndSinceNewerKotlin.args

@@ -2,4 +2,4 @@ $TESTDATA_DIR$/apiVersionAndSinceNewerKotlin.kt
 -d
 $TEMP_DIR$
 -api-version
-1.0
+1.2

compiler/testData/cli/jvm/apiVersionAndSinceNewerKotlin.kt

@@ -1,5 +1,5 @@
-@SinceKotlin("1.0")
+@SinceKotlin("1.2")
 fun old() {}
 
-@SinceKotlin("1.1")
+@SinceKotlin("1.3")
 fun new() {}

compiler/testData/cli/jvm/apiVersionAndSinceNewerKotlin.out

@@ -1,4 +1,4 @@
-compiler/testData/cli/jvm/apiVersionAndSinceNewerKotlin.kt:4:1: warning: the version is greater than the specified API version 1.0
+compiler/testData/cli/jvm/apiVersionAndSinceNewerKotlin.kt:4:1: warning: the version is greater than the specified API version 1.2
-@SinceKotlin("1.1")
+@SinceKotlin("1.3")
 ^
 OK

compiler/testData/cli/jvm/apiVersionGreaterThanLanguage.args

@@ -2,6 +2,6 @@ $TESTDATA_DIR$/apiVersion.kt
 -d
 $TEMP_DIR$
 -api-version
-1.1
+1.3
 -language-version
-1.0
+1.2

compiler/testData/cli/jvm/apiVersionGreaterThanLanguage.out

@@ -1,2 +1,2 @@
-error: -api-version (1.1) cannot be greater than -language-version (1.0)
+error: -api-version (1.3) cannot be greater than -language-version (1.2)
 COMPILATION_ERROR

compiler/testData/cli/jvm/apiVersionLessThanLanguage.argfile

@@ -1 +1 @@
-$TESTDATA_DIR$/apiVersion.kt -d $TEMP_DIR$ -api-version 1.0 -language-version 1.1
+$TESTDATA_DIR$/apiVersion.kt -d $TEMP_DIR$ -api-version 1.2 -language-version 1.3

compiler/testData/cli/jvm/apiVersionLessThanLanguage.args

@@ -2,6 +2,6 @@ $TESTDATA_DIR$/apiVersion.kt
 -d
 $TEMP_DIR$
 -api-version
-1.0
+1.2
 -language-version
-1.1
+1.3

compiler/testData/cli/jvm/apiVersionLessThanLanguage.out

@@ -1,7 +1,4 @@
-compiler/testData/cli/jvm/apiVersion.kt:2:5: error: the feature "bound callable references" is only available since API version 1.1
+compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: sealedSubclasses
-    ""::class.isInstance(42)
+    ""::class.sealedSubclasses
-    ^
-compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: isInstance
-    ""::class.isInstance(42)
               ^
 COMPILATION_ERROR

compiler/testData/cli/jvm/apiVersionLessThanLanguageUsingArgfile.out

@@ -1,7 +1,4 @@
-compiler/testData/cli/jvm/apiVersion.kt:2:5: error: the feature "bound callable references" is only available since API version 1.1
+compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: sealedSubclasses
-    ""::class.isInstance(42)
+    ""::class.sealedSubclasses
-    ^
-compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: isInstance
-    ""::class.isInstance(42)
               ^
 COMPILATION_ERROR

compiler/testData/cli/jvm/argfileWithEscaping.argfile

@@ -1,4 +1,4 @@
 -X"some escaped \" sequence \\"
 $TESTDATA_DIR$/apiVersion.kt
 -d
-$TEMP_DIR$ -api-version 1.0 -language-version 1.1
+$TEMP_DIR$ -api-version 1.2 -language-version 1.3

compiler/testData/cli/jvm/argfileWithEscaping.out

@@ -1,8 +1,5 @@
 warning: flag is not supported by this version of the compiler: -Xsome escaped " sequence /
-compiler/testData/cli/jvm/apiVersion.kt:2:5: error: the feature "bound callable references" is only available since API version 1.1
+compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: sealedSubclasses
-    ""::class.isInstance(42)
+    ""::class.sealedSubclasses
-    ^
-compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: isInstance
-    ""::class.isInstance(42)
               ^
 COMPILATION_ERROR

compiler/testData/cli/jvm/deprecatedApiVersion.args

@@ -0,0 +1,5 @@
+$TESTDATA_DIR$/simple.kt
+-d
+$TEMP_DIR$
+-api-version
+1.1

compiler/testData/cli/jvm/deprecatedApiVersion.out

@@ -0,0 +1,2 @@
+warning: API version 1.1 is deprecated and its support will be removed in a future version of Kotlin
+OK

compiler/testData/cli/jvm/deprecatedLanguageVersion.args

@@ -0,0 +1,5 @@
+$TESTDATA_DIR$/simple.kt
+-d
+$TEMP_DIR$
+-language-version
+1.1

compiler/testData/cli/jvm/deprecatedLanguageVersion.out

@@ -0,0 +1,2 @@
+warning: language version 1.1 is deprecated and its support will be removed in a future version of Kotlin
+OK

compiler/testData/cli/jvm/internalArgEnableLanguageFeature.out

@@ -7,6 +7,7 @@ This mode is not recommended for production use,
 as no stability/compatibility guarantees are given on
 compiler or generated code. Use it at your own risk!
 
+warning: language version 1.1 is deprecated and its support will be removed in a future version of Kotlin
 compiler/testData/cli/jvm/legacySmartCastsAfterTry.kt:8:9: error: only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type String?
     some.length
         ^

compiler/testData/cli/jvm/languageVersion.args

@@ -2,4 +2,4 @@ $TESTDATA_DIR$/languageVersion.kt
 -d
 $TEMP_DIR$
 -language-version
-1.0
+1.2

compiler/testData/cli/jvm/languageVersion.kt

@@ -1,9 +1,5 @@
 package test
 
-sealed class Base
+annotation class Outer {
-
+    class Nested
-class Derived : Base()
-
-fun test() {
-    ""::class.isInstance(42)
 }

compiler/testData/cli/jvm/languageVersion.out

@@ -1,10 +1,4 @@
-compiler/testData/cli/jvm/languageVersion.kt:5:17: error: this type is sealed, so it can be inherited by only its own nested classes or objects
+compiler/testData/cli/jvm/languageVersion.kt:4:5: error: members are not allowed in annotation class
-class Derived : Base()
+    class Nested
-                ^
-compiler/testData/cli/jvm/languageVersion.kt:8:5: error: the feature "bound callable references" is only available since language version 1.1
-    ""::class.isInstance(42)
     ^
-compiler/testData/cli/jvm/languageVersion.kt:8:15: error: unresolved reference: isInstance
-    ""::class.isInstance(42)
-              ^
 COMPILATION_ERROR

compiler/testData/cli/jvm/mixingArgfilesAndUsualArgs.argfile

@@ -1 +1 @@
-$TEMP_DIR$ -api-version 1.0 -language-version 1.1
+$TEMP_DIR$ -api-version 1.2 -language-version 1.3

compiler/testData/cli/jvm/mixingArgfilesAndUsualArgs.out

@@ -1,7 +1,4 @@
-compiler/testData/cli/jvm/apiVersion.kt:2:5: error: the feature "bound callable references" is only available since API version 1.1
+compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: sealedSubclasses
-    ""::class.isInstance(42)
+    ""::class.sealedSubclasses
-    ^
-compiler/testData/cli/jvm/apiVersion.kt:2:15: error: unresolved reference: isInstance
-    ""::class.isInstance(42)
               ^
 COMPILATION_ERROR

compiler/testData/cli/jvm/unsupportedTypeAlias.out

@@ -1,3 +1,4 @@
+warning: language version 1.0 is deprecated and its support will be removed in a future version of Kotlin
 compiler/testData/cli/jvm/unsupportedTypeAlias.kt:3:1: error: the feature "type aliases" is only available since language version 1.1
 typealias Unused = String
 ^

compiler/testData/compileKotlinAgainstCustomBinaries/typeAliasesAreInvisibleInCompatibilityMode/output.txt

@@ -1,3 +1,4 @@
+warning: language version 1.0 is deprecated and its support will be removed in a future version of Kotlin
 compiler/testData/compileKotlinAgainstCustomBinaries/typeAliasesAreInvisibleInCompatibilityMode/main.kt:2:13: error: unresolved reference: Str
 import test.Str
             ^

compiler/testData/integration/ant/jvm/languageVersion/build.log.expected

@@ -3,9 +3,9 @@ Buildfile: [TestData]/build.xml
 
 build:
   [kotlinc] Compiling [[TestData]/main.kt] => [[Temp]/hello.jar]
-  [kotlinc] [TestData]/main.kt:3:17: error: this type is sealed, so it can be inherited by only its own nested classes or objects
+  [kotlinc] [TestData]/main.kt:2:5: error: members are not allowed in annotation class
-  [kotlinc] class Derived : Base()
+  [kotlinc]     class Nested
-  [kotlinc]                 ^
+  [kotlinc]     ^
 
 ERR:
 

compiler/testData/integration/ant/jvm/languageVersion/build.xml

@@ -3,7 +3,7 @@
 
     <target name="build">
         <kotlinc src="${test.data}/main.kt" output="${temp}/hello.jar">
-            <compilerarg line="-language-version 1.0"/>
+            <compilerarg line="-language-version 1.2"/>
         </kotlinc>
     </target>
 </project>

compiler/testData/integration/ant/jvm/languageVersion/main.kt

@@ -1,3 +1,3 @@
-sealed class Base
+annotation class Outer {
-
+    class Nested
-class Derived : Base()
+}

compiler/tests/org/jetbrains/kotlin/cli/CliTestGenerated.java

@@ -151,6 +151,16 @@ public class CliTestGenerated extends AbstractCliTest {
             runTest("compiler/testData/cli/jvm/coroutinesWarn.args");
         }
 
+        @TestMetadata("deprecatedApiVersion.args")
+        public void testDeprecatedApiVersion() throws Exception {
+            runTest("compiler/testData/cli/jvm/deprecatedApiVersion.args");
+        }
+
+        @TestMetadata("deprecatedLanguageVersion.args")
+        public void testDeprecatedLanguageVersion() throws Exception {
+            runTest("compiler/testData/cli/jvm/deprecatedLanguageVersion.args");
+        }
+
         @TestMetadata("diagnosticsOrder.args")
         public void testDiagnosticsOrder() throws Exception {
             runTest("compiler/testData/cli/jvm/diagnosticsOrder.args");

compiler/tests/org/jetbrains/kotlin/jvm/compiler/CompileKotlinAgainstCustomBinariesTest.kt

@@ -251,7 +251,7 @@ class CompileKotlinAgainstCustomBinariesTest : AbstractKotlinCompilerIntegration
     fun testPreReleaseCompilerAgainstPreReleaseLibraryStableLanguageVersion() {
         withPreRelease(true) {
             val library = compileLibrary("library")
-            val someStableReleasedVersion = LanguageVersion.values().first().also { assert(it.isStable) }
+            val someStableReleasedVersion = LanguageVersion.values().first { it.isStable && it >= LanguageVersion.FIRST_SUPPORTED }
             compileKotlin(
                 "source.kt", tmpdir, listOf(library), K2JVMCompiler(),
                 listOf("-language-version", someStableReleasedVersion.versionString)

compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt

@@ -213,6 +213,9 @@ enum class LanguageVersion(val major: Int, val minor: Int) : DescriptionAware {
         fun fromFullVersionString(str: String) =
             str.split(".", "-").let { if (it.size >= 2) fromVersionString("${it[0]}.${it[1]}") else null }
 
+        @JvmField
+        val FIRST_SUPPORTED = KOTLIN_1_2
+
         @JvmField
         val LATEST_STABLE = KOTLIN_1_3
     }