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authorAlex Lam S.L <alexlamsl@gmail.com>2020-11-18 17:11:28 +0000
committerGitHub <noreply@github.com>2020-11-19 01:11:28 +0800
commitfd6544b34011a30bd869d2447b744fe51d0d741f (patch)
tree00302bd48b62f43057e1e4f0244727d188113112 /lib
parentf6a83f794456c65ba927c0ccf55ff88c5c003a66 (diff)
downloadtracifyjs-fd6544b34011a30bd869d2447b744fe51d0d741f.tar.gz
tracifyjs-fd6544b34011a30bd869d2447b744fe51d0d741f.zip
fix corner case `reduce_vars` (#4300)
fixes #4297
Diffstat (limited to 'lib')
-rw-r--r--lib/compress.js1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/compress.js b/lib/compress.js
index 49c1572d..0f1342f7 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -681,6 +681,7 @@ merge(Compressor.prototype, {
&& can_drop_symbol(sym) && safe_to_assign(tw, d)) {
push_ref(d, sym);
mark(tw, d);
+ if (d.single_use && left instanceof AST_Destructured) d.single_use = false;
tw.loop_ids[d.id] = tw.in_loop;
mark_escaped(tw, d, sym.scope, node, node.right, 0, 1);
sym.fixed = d.fixed = fixed;