Optimize spread to not generate x.slice() when x is an array literal

2025-11-18 17:21:48 +00:00 · 2015-05-18 22:56:23 -07:00
parent a4294a6864
commit de8b2fabb9
1 changed files with 1 additions and 1 deletions
@@ -1383,7 +1383,7 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
                        e = (<SpreadElementExpression>e).expression;
                        emitParenthesizedIf(e, /*parenthesized*/ group === 0 && needsParenthesisForPropertyAccessOrInvocation(e));
                        pos++;
-                        if (pos === length && group === 0 && alwaysCopy) {
+                        if (pos === length && group === 0 && alwaysCopy && e.kind !== SyntaxKind.ArrayLiteralExpression) {
                            write(".slice()");
                        }
                    }