Add type and term symbols

Author: nicolasstucki

compiler/src/dotty/tools/dotc/tastyreflect/KernelImpl.scala

@@ -1435,6 +1435,11 @@ class KernelImpl(val rootContext: core.Contexts.Context, val rootPosition: util.
   def PackageDefSymbol_tree(self: PackageDefSymbol)(implicit ctx: Context): PackageDef =
     FromSymbol.packageDefFromSym(self)
 
+  type TypeSymbol = core.Symbols.TypeSymbol
+
+  def matchTypeSymbol(symbol: Symbol)(implicit ctx: Context): Option[TypeSymbol] =
+    if (symbol.isType) Some(symbol.asType) else None
+
   type ClassDefSymbol = core.Symbols.ClassSymbol
 
   def matchClassDefSymbol(symbol: Symbol)(implicit ctx: Context): Option[ClassDefSymbol] =
@@ -1522,6 +1527,11 @@ class KernelImpl(val rootContext: core.Contexts.Context, val rootPosition: util.
   def TypeBindSymbol_tree(self: TypeBindSymbol)(implicit ctx: Context): TypeTree_TypeBind =
     FromSymbol.typeBindFromSym(self)
 
+  type TermSymbol = core.Symbols.TermSymbol
+
+  def matchTermSymbol(symbol: Symbol)(implicit ctx: Context): Option[TermSymbol] =
+    if (symbol.isTerm) Some(symbol.asTerm) else None
+
   type DefDefSymbol = core.Symbols.TermSymbol
 
   def matchDefDefSymbol(symbol: Symbol)(implicit ctx: Context): Option[DefDefSymbol] =

library/src/scala/tasty/reflect/Core.scala

@@ -101,12 +101,15 @@ package scala.tasty.reflect
  *  +- Constant
  *
  *  +- Symbol --+- PackageDefSymbol
- *              +- ClassDefSymbol
- *              +- TypeDefSymbol
- *              +- TypeBindSymbol
- *              +- DefDefSymbol
- *              +- ValDefSymbol
- *              +- BindSymbol
+ *              |
+ *              +- TypeSymbol -+- ClassDefSymbol
+ *              |              +- TypeDefSymbol
+ *              |              +- TypeBindSymbol
+ *              |
+ *              +- TermSymbol -+- DefDefSymbol
+ *              |              +- ValDefSymbol
+ *              |              +- BindSymbol
+ *              |
  *              +- NoSymbol
  *
  *  +- Flags
@@ -421,23 +424,29 @@ trait Core {
     /** Symbol of a package definition */
     type PackageDefSymbol = kernel.PackageDefSymbol
 
-    /** Symbol of a class definition. This includes anonymous class definitions and the class of a module object. */
-    type ClassDefSymbol = kernel.ClassDefSymbol
+    /** Symbol representing a type definition. */
+    type TypeSymbol = kernel.TypeSymbol
 
-    /** Symbol of a type (parameter or member) definition. */
-    type TypeDefSymbol = kernel.TypeDefSymbol
+      /** Symbol of a class definition. This includes anonymous class definitions and the class of a module object. */
+      type ClassDefSymbol = kernel.ClassDefSymbol
 
-    /** Symbol representing a type bind definition. */
-    type TypeBindSymbol = kernel.TypeBindSymbol
+      /** Symbol of a type (parameter or member) definition. */
+      type TypeDefSymbol = kernel.TypeDefSymbol
 
-    /** Symbol representing a method definition. */
-    type DefDefSymbol = kernel.DefDefSymbol
+      /** Symbol representing a type bind definition. */
+      type TypeBindSymbol = kernel.TypeBindSymbol
 
-    /** Symbol representing a value definition. This includes `val`, `lazy val`, `var`, `object` and parameter definitions. */
-    type ValDefSymbol = kernel.ValDefSymbol
+    /** Symbol representing a term definition. */
+    type TermSymbol = kernel.TermSymbol
 
-    /** Symbol representing a bind definition. */
-    type BindSymbol = kernel.BindSymbol
+      /** Symbol representing a method definition. */
+      type DefDefSymbol = kernel.DefDefSymbol
+
+      /** Symbol representing a value definition. This includes `val`, `lazy val`, `var`, `object` and parameter definitions. */
+      type ValDefSymbol = kernel.ValDefSymbol
+
+      /** Symbol representing a bind definition. */
+      type BindSymbol = kernel.BindSymbol
 
     /** No symbol available. */
     type NoSymbol = kernel.NoSymbol

library/src/scala/tasty/reflect/Kernel.scala

@@ -100,12 +100,15 @@ package scala.tasty.reflect
  *  +- Constant
  *
  *  +- Symbol --+- PackageDefSymbol
- *              +- ClassDefSymbol
- *              +- TypeDefSymbol
- *              +- TypeBindSymbol
- *              +- DefDefSymbol
- *              +- ValDefSymbol
- *              +- BindSymbol
+ *              |
+ *              +- TypeSymbol -+- ClassDefSymbol
+ *              |              +- TypeDefSymbol
+ *              |              +- TypeBindSymbol
+ *              |
+ *              +- TermSymbol -+- DefDefSymbol
+ *              |              +- ValDefSymbol
+ *              |              +- BindSymbol
+ *              |
  *              +- NoSymbol
  *
  *  +- Flags
@@ -249,7 +252,7 @@ trait Kernel {
   def DefDef_apply(symbol: DefDefSymbol, rhsFn: List[Type] => List[List[Term]] => Option[Term])(implicit ctx: Context): DefDef
   def DefDef_copy(original: DefDef)(name: String, typeParams: List[TypeDef], paramss: List[List[ValDef]], tpt: TypeTree, rhs: Option[Term])(implicit ctx: Context): DefDef
 
-  /** Tree representing a value definition in the source code This inclues `val`, `lazy val`, `var`, `object` and parameter defintions. */
+  /** Tree representing a value definition in the source code This inclues `val`, `lazy val`, `var`, `object` and parameter definitions. */
   type ValDef <: Definition
 
   def matchValDef(tree: Tree)(implicit ctx: Context): Option[ValDef]
@@ -1173,12 +1176,16 @@ trait Kernel {
 
   def PackageDefSymbol_tree(self: PackageDefSymbol)(implicit ctx: Context): PackageDef
 
+  type TypeSymbol <: Symbol
+
+  def matchTypeSymbol(symbol: Symbol)(implicit ctx: Context): Option[TypeSymbol]
+
   /** Symbol of a class definition. This includes anonymous class definitions and the class of a module object. */
-  type ClassDefSymbol <: Symbol
+  type ClassDefSymbol <: TypeSymbol
 
   def matchClassDefSymbol(symbol: Symbol)(implicit ctx: Context): Option[ClassDefSymbol]
 
-  /** ClassDef tree of this defintion */
+  /** ClassDef tree of this definition */
   def ClassDefSymbol_tree(self: ClassDefSymbol)(implicit ctx: Context): ClassDef
 
   /** Fields directly declared in the class */
@@ -1214,7 +1221,7 @@ trait Kernel {
   def ClassDefSymbol_of(fullName: String)(implicit ctx: Context): ClassDefSymbol
 
   /** Symbol of a type (parameter or member) definition. */
-  type TypeDefSymbol <: Symbol
+  type TypeDefSymbol <: TypeSymbol
 
   def matchTypeDefSymbol(symbol: Symbol)(implicit ctx: Context): Option[TypeDefSymbol]
 
@@ -1224,30 +1231,34 @@ trait Kernel {
   def TypeDefSymbol_tree(self: TypeDefSymbol)(implicit ctx: Context): TypeDef
 
   /** Symbol representing a bind definition. */
-  type TypeBindSymbol <: Symbol
+  type TypeBindSymbol <: TypeSymbol
 
   def matchTypeBindSymbol(symbol: Symbol)(implicit ctx: Context): Option[TypeBindSymbol]
 
   /** TypeBind pattern of this definition */
   def TypeBindSymbol_tree(self: TypeBindSymbol)(implicit ctx: Context): TypeTree_TypeBind
 
+  type TermSymbol <: Symbol
+
+  def matchTermSymbol(symbol: Symbol)(implicit ctx: Context): Option[TermSymbol]
+
   /** Symbol representing a method definition. */
-  type DefDefSymbol <: Symbol
+  type DefDefSymbol <: TermSymbol
 
   def matchDefDefSymbol(symbol: Symbol)(implicit ctx: Context): Option[DefDefSymbol]
 
-  /** DefDef tree of this defintion */
+  /** DefDef tree of this definition */
   def DefDefSymbol_tree(self: DefDefSymbol)(implicit ctx: Context): DefDef
 
-  /** Signature of this defintion */
+  /** Signature of this definition */
   def DefDefSymbol_signature(self: DefDefSymbol)(implicit ctx: Context): Signature
 
   /** Symbol representing a value definition. This includes `val`, `lazy val`, `var`, `object` and parameter definitions. */
-  type ValDefSymbol <: Symbol
+  type ValDefSymbol <: TermSymbol
 
   def matchValDefSymbol(symbol: Symbol)(implicit ctx: Context): Option[ValDefSymbol]
 
-  /** ValDef tree of this defintion */
+  /** ValDef tree of this definition */
   def ValDefSymbol_tree(self: ValDefSymbol)(implicit ctx: Context): ValDef
 
   /** The class symbol of the companion module class */
@@ -1256,7 +1267,7 @@ trait Kernel {
   def ValDefSymbol_companionClass(self: ValDefSymbol)(implicit ctx: Context): Option[ClassDefSymbol]
 
   /** Symbol representing a bind definition. */
-  type BindSymbol <: Symbol
+  type BindSymbol <: TermSymbol
 
   def matchBindSymbol(symbol: Symbol)(implicit ctx: Context): Option[BindSymbol]
 

library/src/scala/tasty/reflect/SymbolOps.scala

@@ -96,6 +96,13 @@ trait SymbolOps extends Core {
       kernel.PackageDefSymbol_tree(self)
   }
 
+  // TypeSymbol
+
+  object IsTypeSymbol {
+    def unapply(symbol: Symbol)(implicit ctx: Context): Option[TypeSymbol] =
+      kernel.matchTypeSymbol(symbol)
+  }
+
   // ClassSymbol
 
   object IsClassDefSymbol {
@@ -184,6 +191,13 @@ trait SymbolOps extends Core {
       kernel.TypeBindSymbol_tree(self)
   }
 
+  // TermSymbol
+
+  object IsTermSymbol {
+    def unapply(symbol: Symbol)(implicit ctx: Context): Option[TermSymbol] =
+      kernel.matchTermSymbol(symbol)
+  }
+
   // DefSymbol
 
   object IsDefDefSymbol {