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LibJS: Make the AST reference-counted

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This allows function objects to outlive the original parsed program
without their ScopeNode disappearing.
This commit is contained in:
Andreas Kling 2020-03-18 11:23:53 +01:00
parent d98fbd192e
commit ddd69e3660
8 changed files with 138 additions and 130 deletions
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4
Libraries/LibJS/AST.cpp
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@ -100,10 +100,10 @@ Value WhileStatement::execute(Interpreter& interpreter) const
Value ForStatement::execute(Interpreter& interpreter) const
{
OwnPtr<BlockStatement> wrapper;
RefPtr<BlockStatement> wrapper;
if (m_init->is_variable_declaration() && static_cast<const VariableDeclaration*>(m_init.ptr())->declaration_type() != DeclarationType::Var) {
wrapper = make<BlockStatement>();
wrapper = create_ast_node<BlockStatement>();
interpreter.enter_scope(*wrapper, {}, ScopeType::Block);
}