From 2683a944fb1b42033e31fc167e71a7b57834b368 Mon Sep 17 00:00:00 2001
From: Anton Medvedev <anton@medv.io>
Date: Wed, 6 Sep 2023 09:31:11 +0200
Subject: [PATCH] Add check for int64->int conversion

---
 parser/parser.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/parser/parser.go b/parser/parser.go
index b7a8752d5..d4a870f71 100644
--- a/parser/parser.go
+++ b/parser/parser.go
@@ -2,6 +2,7 @@ package parser
 
 import (
 	"fmt"
+	"math"
 	"strconv"
 	"strings"
 
@@ -310,6 +311,10 @@ func (p *parser) parseSecondary() Node {
 			if err != nil {
 				p.error("invalid hex literal: %v", err)
 			}
+			if number > math.MaxInt {
+				p.error("integer literal is too large")
+				return nil
+			}
 			node := &IntegerNode{Value: int(number)}
 			node.SetLocation(token.Location)
 			return node
@@ -326,6 +331,10 @@ func (p *parser) parseSecondary() Node {
 			if err != nil {
 				p.error("invalid integer literal: %v", err)
 			}
+			if number > math.MaxInt {
+				p.error("integer literal is too large")
+				return nil
+			}
 			node := &IntegerNode{Value: int(number)}
 			node.SetLocation(token.Location)
 			return node