xo-reader2: recursive top-level function definition works

This commit is contained in:
Roland Conybeare 2026-02-17 18:32:41 -05:00
commit 9cb3c4b5b6
7 changed files with 222 additions and 13 deletions

View file

@ -41,6 +41,7 @@ namespace xo {
using xo::scm::Variable;
using xo::scm::Apply;
#endif
using xo::mm::AGCObject;
using xo::print::APrintable;
using xo::facet::FacetRegistry;
using xo::facet::with_facet;
@ -214,7 +215,7 @@ namespace xo {
if (!lhs_) {
return "expr1|leftparen";
} else if (op_type_ == optype::invalid) {
return "oper|semicolon|rightparen|righbrace";
return "oper|semicolon|rightparen|rightbrace";
} else {
return "expr2|leftparen";
}
@ -293,10 +294,10 @@ namespace xo {
case tokentype::tk_assign:
case tokentype::tk_yields:
case tokentype::tk_plus:
case tokentype::tk_minus:
break;
case tokentype::tk_star:
case tokentype::tk_minus:
case tokentype::tk_cmpeq:
this->on_operator_token(tk, p_psm);
return;
@ -1244,7 +1245,6 @@ namespace xo {
case optype::op_great:
case optype::op_great_equal:
case optype::op_add:
case optype::op_subtract:
assert(false);
break;
@ -1286,6 +1286,24 @@ namespace xo {
// TODO: implement binary operator expression assembly
assert(false);
break;
case optype::op_subtract: /* editor bait: op_minus */
{
auto pm_obj = (with_facet<AGCObject>::mkobj
(&Primitives::s_sub_gco_gco_pm));
auto fn_expr = (DConstant::make
(p_psm->expr_alloc(), pm_obj));
// see comment on op_multiply re need for poly impl
TypeRef tref = TypeRef::dwim
(TypeRef::prefix_type::from_chars("_sub_gco"),
nullptr);
return DApplyExpr::make2(p_psm->expr_alloc(),
tref, fn_expr, lhs_, rhs_);
}
break;
#ifdef NOT_YET
case optype::op_assign:
@ -1308,6 +1326,7 @@ case optype::op_equal:
if (lhs_->valuetype()->is_i64() && rhs_->valuetype()->is_i64()) {
return Apply::make_cmp_eq_i64(lhs_, rhs_);
} else {
this->apply_type_error(c_self_name,
op_type_, lhs_, rhs_, p_psm);
return nullptr;