Add check for int64->int conversion

expr-lang · Sep 6, 2023 · 2683a94 · 2683a94
1 parent 1894b2a
commit 2683a94
Showing 1 changed file with 9 additions and 0 deletions.
diff --git 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