Name: add get a random name (#1728)

buildSrc/src/main/kotlin/cpg.common-conventions.gradle.kts

@@ -107,7 +107,7 @@ kotlin {
 
 tasks.withType<KotlinCompile> {
     compilerOptions {
-        freeCompilerArgs = listOf("-opt-in=kotlin.RequiresOptIn", "-Xcontext-receivers")
+        freeCompilerArgs = listOf("-opt-in=kotlin.RequiresOptIn", "-opt-in=kotlin.uuid.ExperimentalUuidApi", "-Xcontext-receivers")
     }
 }
 

cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/graph/Name.kt

@@ -29,6 +29,7 @@ import de.fraunhofer.aisec.cpg.frontends.Handler
 import de.fraunhofer.aisec.cpg.frontends.Language
 import de.fraunhofer.aisec.cpg.frontends.LanguageFrontend
 import java.util.*
+import kotlin.uuid.Uuid
 
 /**
  * This class represents anything that can have a "Name". In the simplest case it only represents a
@@ -49,6 +50,18 @@ class Name(
         language: Language<*>?
     ) : this(localName, parent, language?.namespaceDelimiter ?: ".")
 
+    companion object {
+        /**
+         * Creates a random name starting with a prefix plus a random UUID (version 4). The Name is
+         * prefixed by [prefix], followed by a separator character [separatorChar] and finalized by
+         * a random UUID ("-" separators also replaced with [separatorChar]).
+         */
+        fun random(prefix: String, separatorChar: Char = '_'): Name {
+            val randomPart = Uuid.random().toString().replace('-', separatorChar)
+            return Name(localName = prefix + separatorChar + randomPart)
+        }
+    }
+
     /**
      * The full string representation of this name. Since [localName] and [parent] are immutable,
      * this is basically a cache for [toString]. Otherwise, we would need to call [toString] a lot