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LibJS: Null check current scope pusher before register_identifier call

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This fixes crashing when current scope pusher is null during identifier
parsing.
This commit is contained in:
Aliaksandr Kalenik 2023-07-05 21:15:36 +02:00 • committed by Andreas Kling
parent ae3a7fd4b8
commit 01910bca39
1 changed files with 2 additions and 1 deletions
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3
Userland/Libraries/LibJS/Parser.cpp
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@ -4988,7 +4988,8 @@ template NonnullRefPtr<FunctionDeclaration> Parser::parse_function_node(u16, Opt
NonnullRefPtr<Identifier const> Parser::create_identifier_and_register_in_current_scope(SourceRange range, DeprecatedFlyString string) NonnullRefPtr<Identifier const> Parser::create_identifier_and_register_in_current_scope(SourceRange range, DeprecatedFlyString string)
{ {
auto id = create_ast_node<Identifier const>(range, string); auto id = create_ast_node<Identifier const>(range, string);
m_state.current_scope_pusher->register_identifier(const_cast<Identifier&>(*id)); if (m_state.current_scope_pusher)
m_state.current_scope_pusher->register_identifier(const_cast<Identifier&>(*id));
return id; return id;
} }