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xo-reader2: bugfix: checkpoint before allocating SSMs

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This commit is contained in:
Roland Conybeare 2026-02-16 11:03:09 -05:00
commit 66d9bc5cd6
18 changed files with 78 additions and 36 deletions
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4
src/reader2/DExpectSymbolSsm.cpp
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@ -31,6 +31,8 @@ namespace xo {
void
DExpectSymbolSsm::start(ParserStateMachine * p_psm)
{
DArena::Checkpoint ckp = p_psm->parser_alloc().checkpoint();
DExpectSymbolSsm * sym_ssm
= DExpectSymbolSsm::make(p_psm->parser_alloc());
@ -40,7 +42,7 @@ namespace xo {
obj<ASyntaxStateMachine> ssm
= with_facet<ASyntaxStateMachine>::mkobj(sym_ssm);
p_psm->push_ssm(ssm);
p_psm->push_ssm(ckp, ssm);
}
syntaxstatetype