aboutsummaryrefslogtreecommitdiff
path: root/lib/compress.js
diff options
context:
space:
mode:
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 3fcfe2d2..b35fc6a5 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -5045,6 +5045,7 @@ merge(Compressor.prototype, {
return self;
});
+ var NO_MERGE = makePredicate("arguments await yield");
AST_Scope.DEFMETHOD("merge_variables", function(compressor) {
if (!compressor.option("merge_vars")) return;
var self = this, segment = {}, root;
@@ -5386,7 +5387,7 @@ merge(Compressor.prototype, {
} else if ((ldef = self.variables.get(def.name)) !== def) {
if (ldef && root === segment) references[ldef.id] = false;
return references[def.id] = false;
- } else if (compressor.exposed(def) || sym.name == "arguments" || sym.name == "await") {
+ } else if (compressor.exposed(def) || NO_MERGE[sym.name]) {
return references[def.id] = false;
} else {
var refs = declarations.get(def.id) || [];