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fix corner case in collapse_vars (#3629)

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fixes #3628
This commit is contained in:
Alex Lam S.L
2019-12-05 05:08:37 +08:00
committed by GitHub
parent 04fbb1f949
commit 9074f05129
2 changed files with 66 additions and 2 deletions
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14
lib/compress.js
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@@ -1610,7 +1610,12 @@ merge(Compressor.prototype, {
if (parent.condition !== node) return node;
return find_stop_value(parent, level + 1);
}
if (parent instanceof AST_ObjectKeyVal) return find_stop_value(scanner.parent(level + 1), level + 2);
if (parent instanceof AST_ObjectKeyVal) {
var obj = scanner.parent(level + 1);
return all(obj.properties, function(prop) {
return prop instanceof AST_ObjectKeyVal;
}) ? find_stop_value(obj, level + 2) : obj;
}
if (parent instanceof AST_PropAccess) return find_stop_value(parent, level + 1);
if (parent instanceof AST_Sequence) {
return (parent.tail_node() === node ? find_stop_value : find_stop_unused)(parent, level + 1);
@@ -1651,7 +1656,12 @@ merge(Compressor.prototype, {
if (parent instanceof AST_Exit) return find_stop_unused(parent, level + 1);
if (parent instanceof AST_If) return find_stop_unused(parent, level + 1);
if (parent instanceof AST_IterationStatement) return node;
if (parent instanceof AST_ObjectKeyVal) return find_stop_unused(scanner.parent(level + 1), level + 2);
if (parent instanceof AST_ObjectKeyVal) {
var obj = scanner.parent(level + 1);
return all(obj.properties, function(prop) {
return prop instanceof AST_ObjectKeyVal;
}) ? find_stop_unused(obj, level + 2) : obj;
}
if (parent instanceof AST_PropAccess) {
var exp = parent.expression;
if (exp === node) return find_stop_unused(parent, level + 1);