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LibJS: Add Interpreter::call(Function*, this_value, arguments)

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This helper function takes care of pushing/popping a call frame so you
don't need to worry about it.
This commit is contained in:
Andreas Kling 2020-03-18 15:20:49 +01:00
parent 47fdac7cea
commit e96ef450f6
2 changed files with 12 additions and 0 deletions
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10
Libraries/LibJS/Interpreter.cpp
View file

@ -161,4 +161,14 @@ void Interpreter::gather_roots(Badge<Heap>, HashTable<Cell*>& roots)
} }
} }
Value Interpreter::call(Function* function, Value this_value, const Vector<Value>& arguments)
{
auto& call_frame = push_call_frame();
call_frame.this_value = this_value;
call_frame.arguments = arguments;
auto result = function->call(*this, call_frame.arguments);
pop_call_frame();
return result;
}
} }

2
Libraries/LibJS/Interpreter.h
View file

@ -84,6 +84,8 @@ public:
void enter_scope(const ScopeNode&, Vector<Argument>, ScopeType); void enter_scope(const ScopeNode&, Vector<Argument>, ScopeType);
void exit_scope(const ScopeNode&); void exit_scope(const ScopeNode&);
Value call(Function*, Value this_value, const Vector<Value>& arguments);
CallFrame& push_call_frame() { m_call_stack.append({ js_undefined(), {} }); return m_call_stack.last(); } CallFrame& push_call_frame() { m_call_stack.append({ js_undefined(), {} }); return m_call_stack.last(); }
void pop_call_frame() { m_call_stack.take_last(); } void pop_call_frame() { m_call_stack.take_last(); }
Value this_value() const Value this_value() const