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LibJS: Implement async functions as generator functions in BC mode

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This applies a simple transformation, and adds a simple wrapper that
translates the generator interface to the async function interface.
This commit is contained in:
Ali Mohammad Pur 2021-11-11 00:46:07 +03:30 • committed by Linus Groh
parent c604e95993
commit 3b0bf05fa5
14 changed files with 192 additions and 43 deletions
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8
Userland/Libraries/LibJS/Runtime/GeneratorObject.h
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@ -16,17 +16,17 @@ class GeneratorObject final : public Object {
JS_OBJECT(GeneratorObject, Object);
public:
static ThrowCompletionOr<GeneratorObject*> create(GlobalObject&, Value, ECMAScriptFunctionObject*, Environment*, Bytecode::RegisterWindow);
GeneratorObject(GlobalObject&, Object& prototype);
static ThrowCompletionOr<GeneratorObject*> create(GlobalObject&, Value, ECMAScriptFunctionObject*, ExecutionContext, Bytecode::RegisterWindow);
GeneratorObject(GlobalObject&, Object& prototype, ExecutionContext);
virtual void initialize(GlobalObject&) override;
virtual ~GeneratorObject() override;
void visit_edges(Cell::Visitor&) override;
ThrowCompletionOr<Value> next_impl(VM&, GlobalObject&, Optional<Value> value_to_throw);
ThrowCompletionOr<Value> next_impl(VM&, GlobalObject&, Optional<Value> next_argument, Optional<Value> value_to_throw);
void set_done() { m_done = true; }
private:
Environment* m_environment { nullptr };
ExecutionContext m_execution_context;
ECMAScriptFunctionObject* m_generating_function { nullptr };
Value m_previous_value;
Bytecode::RegisterWindow m_frame;