Codegen: Do not subtract 0 in arguments to rest array loop

2026-05-15 21:36:50 -05:00 · 2016-11-17 22:06:45 +03:00
parent 52ec508e27
commit 3e52f3dfe9
96 changed files with 170 additions and 168 deletions
--- a/src/compiler/transformers/es2015.ts
+++ b/src/compiler/transformers/es2015.ts
@@ -1306,7 +1306,9 @@ namespace ts {
                            createAssignment(
                                createElementAccess(
                                    expressionName,
-                                    createSubtract(temp, createLiteral(restIndex))
+                                    restIndex === 0
+                                        ? temp
+                                        : createSubtract(temp, createLiteral(restIndex))
                                ),
                                createElementAccess(createIdentifier("arguments"), temp)
                            ),