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Parser.hpp: Fix a segmentation fault happening when parseTree is empty 

Signed-off-by: Username404 <w.iron.zombie@gmail.com>
This commit is contained in:
Username404 2022-08-28 10:51:35 +02:00
parent 94e71ef61e
commit 23f24e55b1
Signed by: Username404-59
GPG Key ID: 7AB361FBB257A5D1
1 changed files with 15 additions and 13 deletions
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28
src/headers/parsing/Parser.hpp
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@ -149,19 +149,21 @@ namespace Parser {
} catch (const NamedIdentifier<true>::identifier_reserved_exception&) { } catch (const NamedIdentifier<true>::identifier_reserved_exception&) {
parsingError(current, " is a reserved identifier", true); parsingError(current, " is a reserved identifier", true);
} }
const auto& last = parseTree.cend() - 1; if (not parseTree.empty()) {
const type_info& lastId = last->get()->getId(); const auto& last = parseTree.cend() - 1;
const auto* last_identifier = dynamic_cast<NamedIdentifier<true>*>(last->get()); const type_info& lastId = last->get()->getId();
if (last_identifier != nullptr) { const auto* last_identifier = dynamic_cast<NamedIdentifier<true>*>(last->get());
if (lastId != typeid(Define) and if (last_identifier != nullptr) {
any_of(parseTree.cbegin(), last, [&last_identifier](const component_ptr& pointer){ if (lastId != typeid(Define) and
try { any_of(parseTree.cbegin(), last, [&last_identifier](const component_ptr& pointer){
return dynamic_cast<NamedIdentifier<true>&>(*pointer).name == last_identifier->name; try {
} catch (const bad_cast&) { return dynamic_cast<NamedIdentifier<true>&>(*pointer).name == last_identifier->name;
return false; } catch (const bad_cast&) {
} return false;
})) }
{ parsingError(current, " has already been defined previously", true); } }))
{ parsingError(current, " has already been defined previously", true); }
}
} }
} }
return parseTree; return parseTree;