From 0a9543543d36c68e3732a40341bbd1ca50fa8a4f Mon Sep 17 00:00:00 2001
From: Celestino Amoroso <celestino.amoroso@gmail.com>
Date: Sat, 11 May 2024 06:41:06 +0200
Subject: [PATCH] Remove the unused 'parent' param from the function newTerm().

---
 ast.go                      | 2 +-
 parser.go                   | 2 +-
 term-constuctor-registry.go | 3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/ast.go b/ast.go
index 3030742..3ba7979 100644
--- a/ast.go
+++ b/ast.go
@@ -60,7 +60,7 @@ func (self *ast) addToken(tk *Token) (err error) {
 }
 
 func (self *ast) addToken2(tk *Token) (t *term, err error) {
-	if t = newTerm(tk, nil); t != nil {
+	if t = newTerm(tk); t != nil {
 		err = self.addTerm(t)
 	} else {
 		err = tk.Errorf("unexpected token %q", tk.String())
diff --git a/parser.go b/parser.go
index 0fa42aa..b22c9a8 100644
--- a/parser.go
+++ b/parser.go
@@ -119,7 +119,7 @@ func (self *parser) parseFuncDef(scanner *scanner) (tree *term, err error) {
 	for lastSym != SymClosedRound && lastSym != SymEos {
 		tk = scanner.Next()
 		if tk.IsSymbol(SymIdentifier) {
-			param := newTerm(tk, nil)
+			param := newTerm(tk)
 			args = append(args, param)
 			tk = scanner.Next()
 		} else if itemExpected {
diff --git a/term-constuctor-registry.go b/term-constuctor-registry.go
index 1474dcb..9479b79 100644
--- a/term-constuctor-registry.go
+++ b/term-constuctor-registry.go
@@ -17,11 +17,10 @@ func registerTermConstructor(sym Symbol, constructor termContructor) {
 	constructorRegistry[sym] = constructor
 }
 
-func newTerm(tk *Token, parent *term) (inst *term) {
+func newTerm(tk *Token) (inst *term) {
 	if constructorRegistry != nil {
 		if construct, exists := constructorRegistry[tk.Sym]; exists {
 			inst = construct(tk)
-			inst.setParent(parent)
 		}
 	}
 	return