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xo-reader2: corrections to toplevel SchematikaParser setup

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This commit is contained in:
Roland Conybeare 2026-01-18 20:23:00 -05:00
commit 846071a4fb
8 changed files with 95 additions and 35 deletions
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48
xo-reader2/src/reader2/ParserStateMachine.cpp
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@ -23,6 +23,35 @@ namespace xo {
{
}
bool
ParserStateMachine::is_at_toplevel() const noexcept
{
return ((stack_ == nullptr)
|| (stack_->parent() == nullptr));
}
bool
ParserStateMachine::has_incomplete_expr() const noexcept
{
// don't count toplevel expression
return !(this->is_at_toplevel());
}
void
ParserStateMachine::establish_toplevel_ssm(obj<ASyntaxStateMachine> ssm)
{
scope log(XO_DEBUG(debug_flag_));
assert(stack_ == nullptr);
auto alloc = with_facet<AAllocator>::mkobj(&parser_alloc_);
this->stack_ = ParserStack::push(nullptr /*stack*/,
alloc, ssm);
this->parser_alloc_ckp_ = parser_alloc_.checkpoint();
}
void
ParserStateMachine::push_ssm(obj<ASyntaxStateMachine> ssm)
{
@ -32,7 +61,24 @@ namespace xo {
auto alloc = with_facet<AAllocator>::mkobj(&parser_alloc_);
this->stack_ = stack_->push(alloc, ssm);
this->stack_ = ParserStack::push(stack_, alloc, ssm);
}
void
ParserStateMachine::reset_result()
{
this->result_ = ParserResult();
}
void
ParserStateMachine::clear_error_reset()
{
this->reset_result();
while (stack_ && stack_->parent())
stack_ = stack_->parent();
this->parser_alloc_.restore(parser_alloc_ckp_);
}
void