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Code Issues Projects Releases Packages Wiki Activity Actions 9

LibJS: Add interpreter exception checks

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Matthew Olsson 2020-06-07 10:53:14 -07:00 • committed by Andreas Kling
commit 4e33fbdb67
Notes: sideshowbarker 2024-07-19 05:45:16 +09:00
11 changed files with 137 additions and 36 deletions
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4
Libraries/LibJS/Runtime/Value.cpp
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@ -675,11 +675,13 @@ Value in(Interpreter& interpreter, Value lhs, Value rhs)
return Value(rhs.as_object().has_property(lhs_string));
}
Value instance_of(Interpreter&, Value lhs, Value rhs)
Value instance_of(Interpreter& interpreter, Value lhs, Value rhs)
{
if (!lhs.is_object() || !rhs.is_object())
return Value(false);
auto constructor_prototype_property = rhs.as_object().get("prototype");
if (interpreter.exception())
return {};
if (!constructor_prototype_property.is_object())
return Value(false);
return Value(lhs.as_object().has_prototype(&constructor_prototype_property.as_object()));