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fix corner case in objects (#4270)

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fixes #4269
This commit is contained in:
Alex Lam S.L
2020-11-09 02:47:02 +00:00
committed by GitHub
parent 91fc1c82b5
commit 41310e6404
2 changed files with 111 additions and 4 deletions
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11
lib/compress.js
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@@ -9407,13 +9407,16 @@ merge(Compressor.prototype, {
OPT(AST_Object, function(self, compressor) {
if (!compressor.option("objects") || compressor.has_directive("use strict")) return self;
for (var i = self.properties.length; --i >= 0;) {
var prop = self.properties[i];
var key = prop.key;
if (key instanceof AST_Node) key = key.evaluate(compressor);
if (typeof key != "string" || /[0-9]+/.test(key)) break;
if (key !== prop.key) prop.key = "" + key;
}
var keys = new Dictionary();
var values = [];
self.properties.forEach(function(prop) {
if (prop.key instanceof AST_Node) {
var key = prop.key.evaluate(compressor);
if (key !== prop.key) prop.key = "" + key;
}
if (prop instanceof AST_ObjectKeyVal && typeof prop.key == "string") {
if (prop.value.has_side_effects(compressor)) flush();
keys.add(prop.key, prop.value);