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LibJS: Make Script and Module GC-allocated

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This ensures that code currently in any active or saved execution stack
always stays alive.
This commit is contained in:
Andreas Kling 2022-09-05 14:31:25 +02:00
parent cb15132146
commit 00c8f07192
18 changed files with 145 additions and 89 deletions
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17
Userland/Libraries/LibJS/Script.cpp
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@ -13,7 +13,7 @@
namespace JS {
// 16.1.5 ParseScript ( sourceText, realm, hostDefined ), https://tc39.es/ecma262/#sec-parse-script
Result<NonnullRefPtr<Script>, Vector<Parser::Error>> Script::parse(StringView source_text, Realm& realm, StringView filename, HostDefined* host_defined, size_t line_number_offset)
Result<NonnullGCPtr<Script>, Vector<Parser::Error>> Script::parse(StringView source_text, Realm& realm, StringView filename, HostDefined* host_defined, size_t line_number_offset)
{
// 1. Let script be ParseText(sourceText, Script).
auto parser = Parser(Lexer(source_text, filename, line_number_offset));
@ -24,16 +24,25 @@ Result<NonnullRefPtr<Script>, Vector<Parser::Error>> Script::parse(StringView so
return parser.errors();
// 3. Return Script Record { [[Realm]]: realm, [[ECMAScriptCode]]: script, [[HostDefined]]: hostDefined }.
return adopt_ref(*new Script(realm, filename, move(script), host_defined));
return NonnullGCPtr(*realm.heap().allocate_without_realm<Script>(realm, filename, move(script), host_defined));
}
Script::Script(Realm& realm, StringView filename, NonnullRefPtr<Program> parse_node, HostDefined* host_defined)
: m_vm(realm.vm())
, m_realm(make_handle(&realm))
: m_realm(realm)
, m_parse_node(move(parse_node))
, m_filename(filename)
, m_host_defined(host_defined)
{
}
Script::~Script()
{
}
void Script::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_realm);
}
}