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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/DIfElseSsm.cpp
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@ -70,13 +70,15 @@ namespace xo {
{
scope log(XO_DEBUG(p_psm->debug_flag()));
DArena::Checkpoint ckp = parser_mm.checkpoint();
DIfElseExpr * if_expr = DIfElseExpr::_make_empty(expr_mm);
DIfElseSsm * if_ssm = DIfElseSsm::_make(parser_mm, if_expr);
obj<ASyntaxStateMachine> ssm
= with_facet<ASyntaxStateMachine>::mkobj(if_ssm);
p_psm->push_ssm(ssm);
p_psm->push_ssm(ckp, ssm);
// note: triggers poly dispatch
p_psm->on_token(Token::if_token());