refactor(compiler): tighten Unary.operator type

fisker · thePunderWoman · commit a7e470a1b38e · 2026-01-09T08:47:01.000-08:00
Improve `Unary.operator` type
diff --git a/packages/compiler/src/expression_parser/ast.ts b/packages/compiler/src/expression_parser/ast.ts
@@ -385,7 +385,7 @@ export class Unary extends Binary {
   private constructor(
     span: ParseSpan,
     sourceSpan: AbsoluteSourceSpan,
-    public operator: string,
+    public operator: '+' | '-',
     public expr: AST,
     binaryOp: BinaryOperation,
     binaryLeft: AST,
