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LibJS: Add arguments.callee to our hack arguments object

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arguments.callee refers to the currently executing function.
This commit is contained in:
Andreas Kling 2021-03-14 16:41:00 +01:00
parent 093331df06
commit 8062fc711c
3 changed files with 5 additions and 0 deletions
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1
Userland/Libraries/LibJS/Runtime/CommonPropertyNames.h
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@ -75,6 +75,7 @@ namespace JS {
P(bind) \ P(bind) \
P(byteLength) \ P(byteLength) \
P(call) \ P(call) \
P(callee) \
P(cbrt) \ P(cbrt) \
P(ceil) \ P(ceil) \
P(charAt) \ P(charAt) \

3
Userland/Libraries/LibJS/Runtime/VM.cpp
View file

@ -175,6 +175,7 @@ Value VM::get_variable(const FlyString& name, GlobalObject& global_object)
return possible_match.value().value; return possible_match.value().value;
if (!call_frame().arguments_object) { if (!call_frame().arguments_object) {
call_frame().arguments_object = Array::create(global_object); call_frame().arguments_object = Array::create(global_object);
call_frame().arguments_object->put(names.callee, call_frame().callee);
for (auto argument : call_frame().arguments) { for (auto argument : call_frame().arguments) {
call_frame().arguments_object->indexed_properties().append(argument); call_frame().arguments_object->indexed_properties().append(argument);
} }
@ -211,6 +212,7 @@ Reference VM::get_reference(const FlyString& name)
Value VM::construct(Function& function, Function& new_target, Optional<MarkedValueList> arguments, GlobalObject& global_object) Value VM::construct(Function& function, Function& new_target, Optional<MarkedValueList> arguments, GlobalObject& global_object)
{ {
CallFrame call_frame; CallFrame call_frame;
call_frame.callee = &function;
call_frame.current_node = current_node(); call_frame.current_node = current_node();
call_frame.is_strict_mode = function.is_strict_mode(); call_frame.is_strict_mode = function.is_strict_mode();
@ -335,6 +337,7 @@ Value VM::call_internal(Function& function, Value this_value, Optional<MarkedVal
VERIFY(!exception()); VERIFY(!exception());
CallFrame call_frame; CallFrame call_frame;
call_frame.callee = &function;
call_frame.current_node = current_node(); call_frame.current_node = current_node();
call_frame.is_strict_mode = function.is_strict_mode(); call_frame.is_strict_mode = function.is_strict_mode();
call_frame.function_name = function.name(); call_frame.function_name = function.name();

1
Userland/Libraries/LibJS/Runtime/VM.h
View file

@ -58,6 +58,7 @@ struct ScopeFrame {
struct CallFrame { struct CallFrame {
const ASTNode* current_node; const ASTNode* current_node;
FlyString function_name; FlyString function_name;
Value callee;
Value this_value; Value this_value;
Vector<Value> arguments; Vector<Value> arguments;
Array* arguments_object { nullptr }; Array* arguments_object { nullptr };