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https://github.com/RGBCube/serenity
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LibJS: Add vector of local variables in ExecutionContext
Now ExecutionContext has vector of values that will represent values of local variables. This vector is initialized in ECMAScriptFunctionObject::internal_call() or ECMAScriptFunctionObject::internal_const() using number of local variables provided to ECMAScriptFunctionObject by the parser.
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3 changed files with 10 additions and 3 deletions
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@ -149,6 +149,8 @@ ThrowCompletionOr<Value> ECMAScriptFunctionObject::internal_call(Value this_argu
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ExecutionContext callee_context(heap());
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callee_context.local_variables.resize(m_local_variables_names.size());
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// Non-standard
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callee_context.arguments.extend(move(arguments_list));
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if (auto* interpreter = vm.interpreter_if_exists())
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@ -218,6 +220,8 @@ ThrowCompletionOr<NonnullGCPtr<Object>> ECMAScriptFunctionObject::internal_const
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ExecutionContext callee_context(heap());
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callee_context.local_variables.resize(m_local_variables_names.size());
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// Non-standard
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callee_context.arguments.extend(move(arguments_list));
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if (auto* interpreter = vm.interpreter_if_exists())
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@ -13,17 +13,19 @@ namespace JS {
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ExecutionContext::ExecutionContext(Heap& heap)
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: arguments(heap)
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, local_variables(heap)
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{
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}
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ExecutionContext::ExecutionContext(MarkedVector<Value> existing_arguments)
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ExecutionContext::ExecutionContext(MarkedVector<Value> existing_arguments, MarkedVector<Value> existing_local_variables)
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: arguments(move(existing_arguments))
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, local_variables(move(existing_local_variables))
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{
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}
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ExecutionContext ExecutionContext::copy() const
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{
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ExecutionContext copy { arguments };
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ExecutionContext copy { arguments, local_variables };
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copy.function = function;
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copy.realm = realm;
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@ -29,7 +29,7 @@ struct ExecutionContext {
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void visit_edges(Cell::Visitor&);
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private:
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explicit ExecutionContext(MarkedVector<Value> existing_arguments);
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explicit ExecutionContext(MarkedVector<Value> existing_arguments, MarkedVector<Value> existing_local_variables);
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public:
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GCPtr<FunctionObject> function; // [[Function]]
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@ -46,6 +46,7 @@ public:
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DeprecatedFlyString function_name;
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Value this_value;
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MarkedVector<Value> arguments;
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MarkedVector<Value> local_variables;
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bool is_strict_mode { false };
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// https://html.spec.whatwg.org/multipage/webappapis.html#skip-when-determining-incumbent-counter
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