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retain recursive function names (#2667)

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fixes #2665
This commit is contained in:
Alex Lam S.L
2017-12-27 07:00:12 +08:00
committed by GitHub
parent 3ff625de7e
commit 5205dbcbf4
2 changed files with 42 additions and 3 deletions
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11
lib/compress.js
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@@ -4700,9 +4700,14 @@ merge(Compressor.prototype, {
if (d.recursive_refs > 0 && fixed.name instanceof AST_SymbolDefun) {
value = fixed.clone(true);
var defun_def = value.name.definition();
value.name = make_node(AST_SymbolLambda, value.name, value.name);
value.name.scope = value;
var lambda_def = value.def_function(value.name);
var lambda_def = value.variables.get(value.name.name);
var name = lambda_def && lambda_def.orig[0];
if (!(name instanceof AST_SymbolLambda)) {
name = make_node(AST_SymbolLambda, value.name, value.name);
name.scope = value;
value.name = name;
lambda_def = value.def_function(name);
}
value.walk(new TreeWalker(function(node) {
if (node instanceof AST_SymbolRef && node.definition() === defun_def) {
node.thedef = lambda_def;