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LibJS: Add ScriptOrModule to execution context and track it everywhere
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10 changed files with 42 additions and 6 deletions
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@ -663,4 +663,23 @@ void VM::restore_execution_context_stack()
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m_execution_context_stack = m_saved_execution_context_stacks.take_last();
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}
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// 9.4.1 GetActiveScriptOrModule ( ), https://tc39.es/ecma262/#sec-getactivescriptormodule
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ScriptOrModule VM::get_active_script_or_module() const
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{
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// 1. If the execution context stack is empty, return null.
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if (m_execution_context_stack.is_empty())
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return Empty {};
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// 2. Let ec be the topmost execution context on the execution context stack whose ScriptOrModule component is not null.
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for (auto i = m_execution_context_stack.size() - 1; i > 0; i--) {
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if (!m_execution_context_stack[i]->script_or_module.has<Empty>())
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return m_execution_context_stack[i]->script_or_module;
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}
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// 3. If no such execution context exists, return null. Otherwise, return ec's ScriptOrModule.
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// Note: Since it is not empty we have 0 and since we got here all the
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// above contexts don't have a non-null ScriptOrModule
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return m_execution_context_stack[0]->script_or_module;
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}
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}
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