Use attributes

src/parser/parse-chars.ts

@@ -31,7 +31,7 @@ export const parseChars = (
 
     if (token.is("(")) {
       const subList = parseChars(file, { nested: true });
-      subList.mayBeTuple = true;
+      subList.setAttribute("tuple?", true);
       list.push(subList);
       continue;
     }

src/parser/syntax-macros/functional-notation.ts

@@ -28,7 +28,7 @@ export const functionalNotation = (list: List): List => {
         return handleNextExpression(acc, expr, nextExpr, array, index);
       }
 
-      if (list.mayBeTuple && idIs(expr, ",")) {
+      if (list.getAttribute("tuple?") && idIs(expr, ",")) {
         isTuple = true;
       }
 
@@ -76,12 +76,12 @@ const finalizeResult = (result: ListValue[], isTuple: boolean): List => {
 };
 
 const processGenerics = (expr: Expr, generics: List, params?: List): List => {
-  generics.mayBeTuple = false;
+  generics.setAttribute("tuple?", false);
 
   const list = params || new List([]);
   list.insert(expr);
   list.insert(",", 1);
-  list.mayBeTuple = false;
+  list.setAttribute("tuple?", false);
   const functional = functionalNotation(list);
 
   functional.insert(functionalNotation(generics), 2);
@@ -92,6 +92,6 @@ const processGenerics = (expr: Expr, generics: List, params?: List): List => {
 const processParamList = (expr: Expr, params: List): List => {
   params.insert(expr);
   params.insert(",", 1);
-  params.mayBeTuple = false;
+  params.setAttribute("tuple?", false);
   return functionalNotation(params);
 };

src/syntax-objects/list.ts

@@ -15,15 +15,12 @@ type ListOpts =
 
 export class List extends Syntax {
   readonly syntaxType = "list";
-  /** True when the list was defined by the user using parenthesis i.e. (hey, there) */
-  mayBeTuple?: boolean;
   #store = new ChildList(undefined, this);
 
   constructor(opts: ListOpts) {
     opts = Array.isArray(opts) ? { value: opts } : opts;
     super(opts);
     const value = opts.value;
-    this.mayBeTuple = opts.isParentheticalList;
 
     if (!value || value instanceof Array) {
       this.push(...(value ?? []));
@@ -213,7 +210,6 @@ export class List extends Syntax {
     return new List({
       ...super.getCloneOpts(parent),
       value: this.#store.toClonedArray(),
-      isParentheticalList: this.mayBeTuple,
     });
   }
 }