[JS transpiler] Ensure reserved words don't end up in nonUniqueIdentifier()

1 files changed, 6 insertions, 0 deletions

diff --git a/src/string_mutable.zig b/src/string_mutable.zig
index b8084dd50..5dc153c99 100644
--- a/src/string_mutable.zig
+++ b/src/string_mutable.zig
@@ -63,6 +63,8 @@ pub const MutableString = struct {
 
         if (!iterator.next(&cursor)) return "_";
 
+        const JSLexerTables = @import("./js_lexer_tables.zig");
+
         // Common case: no gap necessary. No allocation necessary.
         needs_gap = !js_lexer.isIdentifierStart(cursor.c);
         if (!needs_gap) {
@@ -76,6 +78,10 @@ pub const MutableString = struct {
             }
         }
 
+        if (!needs_gap and str.len >= 3 and str.len <= 10) {
+            return JSLexerTables.StrictModeReservedWordsRemap.get(str) orelse str;
+        }
+
         if (needs_gap) {
             var mutable = try MutableString.initCopy(allocator, str[0..start_i]);
             needs_gap = false;