Track unused type declarations in usages slices (#104)

Signed-off-by: Prabhu Subramanian <prabhu@appthreat.com>

build.sbt

@@ -1,9 +1,9 @@
 name                     := "atom"
 ThisBuild / organization := "io.appthreat"
-ThisBuild / version      := "1.7.4"
+ThisBuild / version      := "1.7.5"
 ThisBuild / scalaVersion := "3.3.1"
 
-val chenVersion      = "1.0.9"
+val chenVersion      = "1.0.10"
 
 lazy val atom = Projects.atom
 

project/build.properties

@@ -1 +1 @@
-sbt.version=1.9.7
+sbt.version=1.9.8

src/main/scala/io/appthreat/atom/slicing/UsageSlicing.scala

@@ -54,7 +54,7 @@ object UsageSlicing:
               userDefTypes ++ routesAsUDT(atom)
             )
         else
-            ProgramUsageSlice(slices, userDefTypes)
+            ProgramUsageSlice(slices ++ unusedTypeDeclAsSlices(atom), userDefTypes)
     end calculateUsageSlice
 
     import io.shiftleft.semanticcpg.codedumper.CodeDumper.dump
@@ -122,6 +122,21 @@ object UsageSlicing:
             )
         )
 
+    private def unusedTypeDeclAsSlices(atom: Cpg): List[MethodUsageSlice] =
+        atom.typeDecl.annotation.filter(_.method.isEmpty).l.map(im =>
+            MethodUsageSlice(
+              code = if im.code.nonEmpty then im.code.replaceAll("\\s*", "") else "",
+              fullName = im.fullName,
+              signature = s"@${im.name}",
+              fileName = if im.file.nonEmpty then im.file.head.name else "",
+              slices = Seq[ObjectUsageSlice]().toSet,
+              lineNumber =
+                  im.lineNumber.map(_.intValue()),
+              columnNumber =
+                  im.columnNumber.map(_.intValue())
+            )
+        )
+
     private def externalCalleesAsSlices(
       atom: Cpg,
       typeMap: TrieMap[String, String]

wrapper/nodejs/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@appthreat/atom",
-  "version": "1.7.4",
+  "version": "1.7.5",
   "description": "Create atom (⚛) representation for your application, packages and libraries",
   "exports": "./index.js",
   "type": "module",
@@ -14,7 +14,7 @@
     "yargs": "^17.7.2"
   },
   "devDependencies": {
-    "eslint": "^8.55.0"
+    "eslint": "^8.56.0"
   },
   "bin": {
     "atom": "./index.js",