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LibJS: Do not execute scripts with parse errors

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This adds missing checks in several LibJS consumers.
This commit is contained in:
Stephan Unverwerth 2020-04-13 02:05:21 +02:00 • committed by Andreas Kling
parent 50b6b6ef86
commit 984c290ec0
4 changed files with 36 additions and 7 deletions
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6
Libraries/LibWeb/DOM/Document.cpp
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@ -374,7 +374,11 @@ JS::Interpreter& Document::interpreter()
JS::Value Document::run_javascript(const StringView& source)
{
auto program = JS::Parser(JS::Lexer(source)).parse_program();
auto parser = JS::Parser(JS::Lexer(source));
auto program = parser.parse_program();
if (parser.has_errors()) {
return JS::js_undefined();
}
dbg() << "Document::run_javascript('" << source << "') will run:";
program->dump(0);
return document().interpreter().run(*program);