fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2026-01-02 06:37:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

LibJS: Make missing variable decls in for..in/of a syntax error

Browse Source 
...instead of a hard crash :P
This commit is contained in:
Ali Mohammad Pur
2021-05-30 10:34:52 +04:30
committed by Linus Groh
parent e10006b3fa
commit 724b89f90c
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
Userland/Libraries/LibJS/Parser.cpp
View File

@@ -1961,7 +1961,9 @@ NonnullRefPtr<Statement> Parser::parse_for_in_of_statement(NonnullRefPtr<ASTNode
auto declarations = static_cast<VariableDeclaration&>(*lhs).declarations();
if (declarations.size() > 1)
syntax_error("multiple declarations not allowed in for..in/of");
if (declarations.first().init() != nullptr)
if (declarations.size() < 1)
syntax_error("need exactly one variable declaration in for..in/of");
else if (declarations.first().init() != nullptr)
syntax_error("variable initializer not allowed in for..in/of");
}
auto in_or_of = consume();