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Return an error when script is not found rather than crash with SIGSEGV #49276

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Return an error when script is not found rather than crash with SIGSEGV #49276

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16 changes: 14 additions & 2 deletions src/module_wrap.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -589,8 +589,20 @@ static MaybeLocal<Promise> ImportModuleDynamically(
->Uint32Value(context)
.ToChecked();
if (type == ScriptType::kScript) {
contextify::ContextifyScript* wrap = env->id_to_script_map.find(id)->second;
object = wrap->object();
auto it = env->id_to_script_map.find(id);
if (it == env->id_to_script_map.end()) {
Local<Promise::Resolver> resolver;
if (!Promise::Resolver::New(context).ToLocal(&resolver)) return {};
resolver
->Reject(context,
v8::Exception::TypeError(FIXED_ONE_BYTE_STRING(
context->GetIsolate(), "Script not found by id")))
.ToChecked();
return handle_scope.Escape(resolver->GetPromise());
} else {
contextify::ContextifyScript* wrap = it->second;
object = wrap->object();
}
} else if (type == ScriptType::kModule) {
ModuleWrap* wrap = ModuleWrap::GetFromID(env, id);
object = wrap->object();
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