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fix corner case in reduce_vars (#5121)

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fixes #5120
This commit is contained in:
Alex Lam S.L
2021-08-25 03:39:35 +01:00
committed by GitHub
parent db94d21980
commit c3aef23614
3 changed files with 41 additions and 13 deletions
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21
lib/compress.js
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@@ -11231,21 +11231,20 @@ merge(Compressor.prototype, {
if (!(node instanceof AST_SymbolRef)) return;
var def = node.definition();
if (def === defun_def) {
node.thedef = lambda_def;
lambda_def.references.push(node);
node.thedef = def = lambda_def;
} else {
def.single_use = false;
var fn = node.fixed_value();
if (!is_lambda(fn)) return;
if (!fn.name) return;
if (fn.name.definition() !== def) return;
if (def.scope !== fn.name.scope) return;
if (fixed.variables.get(fn.name.name) !== def) return;
fn.name = fn.name.clone();
var value_def = value.variables.get(fn.name.name) || value[def_fn_name](fn.name);
node.thedef = value_def;
value_def.references.push(node);
if (is_lambda(fn)
&& fn.name
&& fn.name.definition() === def
&& def.scope === fn.name.scope
&& fixed.variables.get(fn.name.name) === def) {
fn.name = fn.name.clone();
node.thedef = def = value.variables.get(fn.name.name) || value[def_fn_name](fn.name);
}
}
def.references.push(node);
}));
} else {
if (fixed instanceof AST_Scope) {