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authorAlex Lam S.L <alexlamsl@gmail.com>2020-04-18 11:08:05 +0100
committerGitHub <noreply@github.com>2020-04-18 18:08:05 +0800
commitb38838c6bf064bfe54f0419a5eb7cd4298bfc3a3 (patch)
treea3fae247735cfa405a218f8b08564fae910bfbdd /lib/compress.js
parent708973e51d418230918a2d0c2fcafb79d1e1c250 (diff)
downloadtracifyjs-b38838c6bf064bfe54f0419a5eb7cd4298bfc3a3.tar.gz
tracifyjs-b38838c6bf064bfe54f0419a5eb7cd4298bfc3a3.zip
fix corner case in `join_vars` (#3796)
fixes #3795
Diffstat (limited to 'lib/compress.js')
-rw-r--r--lib/compress.js3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/compress.js b/lib/compress.js
index d07c2412..d6f6a710 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -2371,8 +2371,9 @@ merge(Compressor.prototype, {
var lhs = expr.left;
if (!(lhs instanceof AST_SymbolRef)) break;
if (is_undeclared_ref(lhs)) break;
+ if (lhs.scope !== scope) break;
var def = lhs.definition();
- if (def.scope !== lhs.scope) break;
+ if (def.scope !== scope) break;
if (def.orig.length > def.eliminated + 1) break;
if (def.orig[0].TYPE != "SymbolVar") break;
var name = make_node(AST_SymbolVar, lhs, lhs);