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xo-reader2: allow formals w/out explicit type

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This commit is contained in:
Roland Conybeare 2026-02-17 16:48:20 -05:00
commit 4a5d924676
39 changed files with 307 additions and 32 deletions
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39
xo-reader2/src/reader2/ParserStateMachine.cpp
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@ -286,6 +286,18 @@ namespace xo {
this->stack_->top().on_parsed_formal(sym, td, this);
}
void
ParserStateMachine::on_parsed_formal_with_token(const DUniqueString * sym,
TypeDescr td,
const Token & tk)
{
scope log(XO_DEBUG(debug_flag_), xtag("sym", std::string_view(*sym)), xtag("td", td), xtag("tk", tk));
assert(stack_);
this->stack_->top().on_parsed_formal_with_token(sym, td, tk, this);
}
void
ParserStateMachine::on_parsed_formal_arglist(DArray * arglist)
{
@ -446,6 +458,33 @@ namespace xo {
this->capture_error(ssm_name, errmsg);
}
void
ParserStateMachine::illegal_parsed_formal_with_token(std::string_view ssm_name,
const DUniqueString * param_name,
TypeDescr param_type,
const Token & tk,
std::string_view expect_str)
{
// TODO:
// - want to write error message using DArena
// - need something like log_streambuf and/or tostr() that's arena-aware
auto errmsg_string = tostr("Unexpected formal",
xtag("param_name", std::string_view(*param_name)),
xtag("param_type", param_type),
xtag("tk", tk),
xtag("expecting", expect_str),
xtag("ssm", ssm_name),
xtag("via", "ParserStateMachine::illegal_parsed_formal"));
assert(expr_alloc_);
auto errmsg = DString::from_view(expr_alloc_,
std::string_view(errmsg_string));
this->capture_error(ssm_name, errmsg);
}
void
ParserStateMachine::illegal_parsed_formal_arglist(std::string_view ssm_name,
DArray * arglist,