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LibJS: Stop masking non-RangeError exceptions in TypedArray creation

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Non-RangeError exceptions can be thrown by user implementations of
valueOf (which are called by to_index), and the specification
disallows changing the type of the thrown error.
This commit is contained in:
Idan Horowitz 2021-07-05 02:42:16 +03:00 • committed by Linus Groh
parent 3b81a7420e
commit d713a84851
1 changed files with 5 additions and 3 deletions
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8
Userland/Libraries/LibJS/Runtime/TypedArray.cpp
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@ -313,9 +313,11 @@ void TypedArrayBase::visit_edges(Visitor& visitor)
\
auto array_length = first_argument.to_index(global_object()); \
if (vm.exception()) { \
/* Re-throw more specific RangeError */ \
vm.clear_exception(); \
vm.throw_exception<RangeError>(global_object(), ErrorType::InvalidLength, "typed array"); \
if (vm.exception()->value().is_object() && is<RangeError>(vm.exception()->value().as_object())) { \
/* Re-throw more specific RangeError */ \
vm.clear_exception(); \
vm.throw_exception<RangeError>(global_object(), ErrorType::InvalidLength, "typed array"); \
} \
return {}; \
} \
if (array_length > NumericLimits<i32>::max() / sizeof(Type)) { \