Merge pull request scala#13316 from BarkingBad/tasty-inspector

Update the tasty inspector returned value

stdlib-bootstrapped-tasty-tests/test/BootstrappedStdLibTASYyTest.scala

@@ -109,8 +109,8 @@ object BootstrappedStdLibTASYyTest:
         ()
     }
     val tastyFiles = scalaLibTastyPaths.filterNot(blacklisted)
-    val hasErrors = TastyInspector.inspectTastyFiles(tastyFiles.map(x => scalaLibClassesPath.resolve(x).toString))(inspector)
-    assert(!hasErrors, "Errors reported while loading from TASTy")
+    val isSuccess = TastyInspector.inspectTastyFiles(tastyFiles.map(x => scalaLibClassesPath.resolve(x).toString))(inspector)
+    assert(isSuccess, "Errors reported while loading from TASTy")
 
   def compileFromTastyInJar(blacklisted: Set[String]): Unit = {
     val driver = new dotty.tools.dotc.Driver

tasty-inspector/src/scala/tasty/inspector/TastyInspector.scala

@@ -22,13 +22,17 @@ object TastyInspector:
   /** Load and process TASTy files using TASTy reflect
    *
    *  @param tastyFiles List of paths of `.tasty` files
+   *
+   *  @return boolean value indicating whether the process succeeded
    */
   def inspectTastyFiles(tastyFiles: List[String])(inspector: Inspector): Boolean =
     inspectAllTastyFiles(tastyFiles, Nil, Nil)(inspector)
 
   /** Load and process TASTy files in a `jar` file using TASTy reflect
    *
    *  @param jars Path of `.jar` file
+   *
+   *  @return boolean value indicating whether the process succeeded
    */
   def inspectTastyFilesInJar(jar: String)(inspector: Inspector): Boolean =
     inspectAllTastyFiles(Nil, List(jar), Nil)(inspector)
@@ -38,6 +42,8 @@ object TastyInspector:
    *  @param tastyFiles List of paths of `.tasty` files
    *  @param jars List of path of `.jar` files
    *  @param dependenciesClasspath Classpath with extra dependencies needed to load class in the `.tasty` files
+   *
+   *  @return boolean value indicating whether the process succeeded
    */
   def inspectAllTastyFiles(tastyFiles: List[String], jars: List[String], dependenciesClasspath: List[String])(inspector: Inspector): Boolean =
     def checkFile(fileName: String, ext: String): Unit =
@@ -49,7 +55,7 @@ object TastyInspector:
     tastyFiles.foreach(checkFile(_, "tasty"))
     jars.foreach(checkFile(_, "jar"))
     val files = tastyFiles ::: jars
-    files.nonEmpty && inspectFiles(dependenciesClasspath, files)(inspector)
+    inspectFiles(dependenciesClasspath, files)(inspector)
 
   private def inspectorDriver(inspector: Inspector) =
     class InspectorDriver extends Driver:
@@ -100,11 +106,11 @@ object TastyInspector:
 
 
   private def inspectFiles(classpath: List[String], classes: List[String])(inspector: Inspector): Boolean =
-    if (classes.isEmpty)
-      throw new IllegalArgumentException("Parameter classes should no be empty")
-
-    val reporter = inspectorDriver(inspector).process(inspectorArgs(classpath, classes))
-    reporter.hasErrors
+    classes match
+      case Nil => true
+      case _ =>
+        val reporter = inspectorDriver(inspector).process(inspectorArgs(classpath, classes))
+        !reporter.hasErrors
 
   end inspectFiles