More cleanup of old typedef remnants

Fraunhofer-AISEC · Nov 23, 2023 · e93d144 · e93d144
1 parent d6e8d13
commit e93d144
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Showing 8 changed files with 344 additions and 158 deletions.
diff --git a/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/ScopeManager.kt b/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/ScopeManager.kt
@@ -94,12 +94,6 @@ class ScopeManager : ScopeProvider {
      */
     private val aliases = mutableMapOf<PhysicalLocation.ArtifactLocation, MutableSet<Alias>>()
 
-    /**
-     * The language frontend tied to the scope manager. Can be used to implement language specific
-     * scope resolution or lookup.
-     */
-    var lang: LanguageFrontend<*, *>? = null
-
     /** True, if the scope manager is currently in a [BlockScope]. */
     val isInBlock: Boolean
         get() = this.firstScopeOrNull { it is BlockScope } != null
@@ -568,10 +562,7 @@ class ScopeManager : ScopeProvider {
         }
     }
 
-    /**
-     * Only used by the [de.fraunhofer.aisec.cpg.graph.TypeManager], adds typedefs to the current
-     * [ValueDeclarationScope].
-     */
+    /** Only used by the [TypeManager], adds typedefs to the current [ValueDeclarationScope]. */
     fun addTypedef(typedef: TypedefDeclaration) {
         val scope = this.firstScopeIsInstanceOrNull<ValueDeclarationScope>()
         if (scope == null) {
@@ -580,12 +571,6 @@ class ScopeManager : ScopeProvider {
         }
 
         scope.addTypedef(typedef)
-
-        if (scope.astNode == null) {
-            lang?.currentTU?.addTypedef(typedef)
-        } else {
-            scope.astNode?.addTypedef(typedef)
-        }
     }
 
     private fun getCurrentTypedefs(searchScope: Scope?): Collection<TypedefDeclaration> {
@@ -878,14 +863,14 @@ class ScopeManager : ScopeProvider {
         list += Alias(from, to)
     }
 
-    fun typeDefFor(finalToCheck: Type): Type? {
+    fun typedefFor(alias: Type): Type? {
         var current = currentScope
 
         // We need to build a path from the current scope to the top most one. This ensures us that
         // a local definition overwrites / shadows one that was there on a higher scope.
         while (current != null) {
             if (current is ValueDeclarationScope) {
-                val decl = current.typedefs[finalToCheck]
+                val decl = current.typedefs[alias]
                 if (decl != null) {
                     return decl.type
                 }

diff --git a/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/TypeManager.kt b/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/TypeManager.kt
@@ -252,7 +252,7 @@ class TypeManager {
 
     fun resolvePossibleTypedef(alias: Type, scopeManager: ScopeManager): Type {
         val finalToCheck = alias.root
-        val applicable = scopeManager.typeDefFor(finalToCheck)
+        val applicable = scopeManager.typedefFor(finalToCheck)
         return applicable ?: alias
     }
 }

diff --git a/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/frontends/LanguageFrontend.kt b/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/frontends/LanguageFrontend.kt
@@ -66,10 +66,6 @@ abstract class LanguageFrontend<in AstNode, TypeNode>(
     val typeManager: TypeManager = ctx.typeManager
     val config: TranslationConfiguration = ctx.config
 
-    init {
-        this.scopeManager.lang = this
-    }
-
     var currentTU: TranslationUnitDeclaration? = null
 
     @Throws(TranslationException::class)

diff --git a/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/graph/Node.kt b/cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/graph/Node.kt
@@ -34,7 +34,6 @@ import de.fraunhofer.aisec.cpg.frontends.Language
 import de.fraunhofer.aisec.cpg.graph.declarations.MethodDeclaration
 import de.fraunhofer.aisec.cpg.graph.declarations.RecordDeclaration
 import de.fraunhofer.aisec.cpg.graph.declarations.TranslationUnitDeclaration
-import de.fraunhofer.aisec.cpg.graph.declarations.TypedefDeclaration
 import de.fraunhofer.aisec.cpg.graph.edge.*
 import de.fraunhofer.aisec.cpg.graph.edge.Properties
 import de.fraunhofer.aisec.cpg.graph.scopes.GlobalScope
@@ -203,8 +202,6 @@ open class Node : IVisitable<Node>, Persistable, LanguageProvider, ScopeProvider
     /** Virtual property for accessing the parents of the Program Dependence Graph (PDG). */
     var prevPDG: MutableSet<Node> by PropertyEdgeSetDelegate(Node::prevPDGEdges, false)
 
-    var typedefs: MutableSet<TypedefDeclaration> = HashSet()
-
     /**
      * If a node is marked as being inferred, it means that it was created artificially and does not
      * necessarily have a real counterpart in the scanned source code. However, the nodes
@@ -333,10 +330,6 @@ open class Node : IVisitable<Node>, Persistable, LanguageProvider, ScopeProvider
         }
     }
 
-    fun addTypedef(typedef: TypedefDeclaration) {
-        typedefs.add(typedef)
-    }
-
     fun addAnnotations(annotations: Collection<Annotation>) {
         this.annotations.addAll(annotations)
     }