JS backend: add -meta-info command line option for cli compiler

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.java

@@ -38,6 +38,10 @@ public class K2JSCompilerArguments extends CommonCompilerArguments {
     @Argument(value = "source-map", description = "Generate source map")
     public boolean sourceMap;
 
+    @Argument(value = "meta-info", description = "Generate meta information and save to the given file")
+    @ValueDescription("<path>")
+    public String metaInfo;
+
     @Argument(value = "target", description = "Generate JS files for specific ECMA version (only ECMA 5 is supported)")
     @ValueDescription("<version>")
     public String target;

compiler/cli/cli.iml

@@ -18,6 +18,7 @@
     <orderEntry type="module" module-name="backend-common" />
     <orderEntry type="module" module-name="serialization" />
     <orderEntry type="module" module-name="serialization.jvm" />
+    <orderEntry type="module" module-name="js.serializer" />
     <orderEntry type="module" module-name="util" />
   </component>
 </module>

compiler/cli/src/org/jetbrains/kotlin/cli/js/K2JSCompiler.java

@@ -29,6 +29,7 @@ import kotlin.Function1;
 import kotlin.Unit;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.kotlin.utils.serializer.KotlinJavaScriptSerializer;
 import org.jetbrains.kotlin.analyzer.AnalysisResult;
 import org.jetbrains.kotlin.backend.common.output.OutputFileCollection;
 import org.jetbrains.kotlin.cli.common.CLICompiler;
@@ -191,6 +192,10 @@ public class K2JSCompiler extends CLICompiler<K2JSCompilerArguments> {
         }
         OutputUtilsPackage.writeAll(outputFiles, outputDir, messageCollector);
 
+        if (arguments.metaInfo != null) {
+            new KotlinJavaScriptSerializer().serialize(config.getModuleId(), analysisResult.getModuleDescriptor(), new File(arguments.metaInfo));
+        }
+
         return OK;
     }
 

compiler/testData/cli/js/jsHelp.out

@@ -4,6 +4,7 @@ where possible options include:
   -no-stdlib                 Don't use bundled Kotlin stdlib
   -library-files <path[,]>   Path to zipped library sources or kotlin files separated by commas
   -source-map                Generate source map
+  -meta-info <path>          Generate meta information and save to the given file
   -target <version>          Generate JS files for specific ECMA version (only ECMA 5 is supported)
   -main {call,noCall}        Whether a main function should be called; default 'call' (main function will be auto detected)
   -output-prefix <path>      Path to file which will be added to the beginning of output file