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fix corner case in rests (#4539)

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fixes #4538
This commit is contained in:
Alex Lam S.L
2021-01-12 01:12:30 +00:00
committed by GitHub
parent 52e94a0723
commit c12486bab4
2 changed files with 21 additions and 2 deletions
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4
lib/compress.js
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@@ -7778,8 +7778,9 @@ merge(Compressor.prototype, {
if (!all(args, function(arg) {
return !(arg instanceof AST_Spread);
})) return;
var is_iife = fn === exp && !fn.name;
if (fn.rest) {
if (!compressor.option("rests")) return;
if (!(is_iife && compressor.option("rests"))) return;
var insert = fn.argnames.length;
for (var i = args.length; i < insert; i++) {
args[i] = make_node(AST_Undefined, call).optimize(compressor);
@@ -7789,7 +7790,6 @@ merge(Compressor.prototype, {
fn.rest = null;
}
var pos = 0, last = 0;
var is_iife = fn === exp && !fn.name;
var drop_defaults = is_iife && compressor.option("default_values");
var drop_fargs = is_iife && compressor.drop_fargs(fn, call) ? function(argname, arg) {
if (!argname) return true;