From eb8e54b5174553470b6ecd476a4018e8a0397c77 Mon Sep 17 00:00:00 2001
From: Pavel Punegov <pavel.punegov@jetbrains.com>
Date: Tue, 10 Mar 2020 13:22:42 +0300
Subject: [PATCH] Check IR version support

---
 .../kotlin/cli/bc/K2NativeCompilerArguments.kt    | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt b/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt
index 69b1def3542..c1ba40b35bf 100644
--- a/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt
+++ b/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt
@@ -7,9 +7,9 @@ package org.jetbrains.kotlin.cli.bc
 
 import org.jetbrains.kotlin.cli.common.arguments.CommonCompilerArguments
 import org.jetbrains.kotlin.cli.common.arguments.Argument
+import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity
 import org.jetbrains.kotlin.cli.common.messages.MessageCollector
-import org.jetbrains.kotlin.config.AnalysisFlag
-import org.jetbrains.kotlin.config.AnalysisFlags
+import org.jetbrains.kotlin.config.*
 
 class K2NativeCompilerArguments : CommonCompilerArguments() {
     // First go the options interesting to the general public.
@@ -255,6 +255,17 @@ class K2NativeCompilerArguments : CommonCompilerArguments() {
                 if (printIr)
                     phasesToDumpAfter = arrayOf("ALL")
             }
+
+    override fun checkIrSupport(languageVersionSettings: LanguageVersionSettings, collector: MessageCollector) {
+        if (languageVersionSettings.languageVersion < LanguageVersion.KOTLIN_1_4
+                || languageVersionSettings.apiVersion < ApiVersion.KOTLIN_1_4
+        ) {
+            collector.report(
+                    severity = CompilerMessageSeverity.ERROR,
+                    message = "Native backend cannot be used with language or API version below 1.4"
+            )
+        }
+    }
 }
 
 const val EMBED_BITCODE_FLAG = "-Xembed-bitcode"