From 7d7058743aa5d91af80dc603381a7ec6c080ec12 Mon Sep 17 00:00:00 2001
From: In'Maldrerah Eyllisitryanmitore <i@httpssec.com>
Date: Tue, 11 Nov 2025 09:42:05 +0000
Subject: [PATCH 1/2] Supported reconstructing negative literal in parser

---
 src/parser/DeclParser.cj | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/parser/DeclParser.cj b/src/parser/DeclParser.cj
index 782dc86..08b88a9 100644
--- a/src/parser/DeclParser.cj
+++ b/src/parser/DeclParser.cj
@@ -854,6 +854,11 @@ internal open class DeclParser {
         // the problem will be solved.
         if (helper.matches(TKH.PREFIX_UNARY_OPERATOR)) {
             let oper: Token = helper.previous()
+            if (oper.kind == TK.SUB && helper.matches(TK.INTEGER_LITERAL, TK.FLOAT_LITERAL)) {
+                let literal: Token = helper.previous()
+                return LitConstExpr(NodeIdManager.nextId(),
+                    Token(literal.kind, "-" + literal.value, oper.pos))
+            }
             let right: Expr = expectExpression(prefixUnaryExpression,
                 "Expected a postfixExpression after ${oper.value}, found '\u{001b}[31m${helper.peek().value}\u{001b}[0m'")
             return UnaryExpr(NodeIdManager.nextId(), oper, right)

From 2ee8ba37282cfcff4ed0873a83effb83e7938560 Mon Sep 17 00:00:00 2001
From: In'Maldrerah Eyllisitryanmitore <i@httpssec.com>
Date: Thu, 13 Nov 2025 08:28:52 +0000
Subject: [PATCH 2/2] Fixed unary expr test and add negative literal test

---
 src/test/Parser_test.cj | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/test/Parser_test.cj b/src/test/Parser_test.cj
index 74b463e..cc214ea 100644
--- a/src/test/Parser_test.cj
+++ b/src/test/Parser_test.cj
@@ -253,7 +253,7 @@ class ParserTests {
     func unaryExpr_test() {
         let test: String = """
             main(){
-                -134
+                -(134)
                 !134
             }"""
 
@@ -278,9 +278,11 @@ class ParserTests {
         let test: String = """
             main(){
                 1231
+                -1231
                 "string"
                 ()
                 1.2
+                -1.2
                 true
                 false
                 r'a'