255 lines
8.2 KiB
C++
255 lines
8.2 KiB
C++
/* @file DExpectQListSsm.cpp
|
|
*
|
|
* @author Roland Conybeare, Mar 2026
|
|
*/
|
|
|
|
#include "ExpectQLiteralSsm.hpp"
|
|
#include <xo/object2/Float.hpp>
|
|
//#include "DExpectFormalArgSsm.hpp"
|
|
//#include "ssm/ISyntaxStateMachine_DExpectFormalArgSsm.hpp"
|
|
//#include <xo/expression2/DVariable.hpp>
|
|
//#include <xo/expression2/detail/IGCObject_DVariable.hpp>
|
|
//#include <xo/printable2/Printable.hpp>
|
|
//#include <xo/alloc2/arena/IAllocator_DArena.hpp>
|
|
//#include <xo/facet/FacetRegistry.hpp>
|
|
#include <xo/indentlog/scope.hpp>
|
|
|
|
namespace xo {
|
|
// using xo::print::APrintable;
|
|
// using xo::print::ppstate;
|
|
// using xo::print::ppindentinfo;
|
|
using xo::mm::AGCObject;
|
|
// using xo::mm::AAllocator;
|
|
// using xo::facet::FacetRegistry;
|
|
// using xo::reflect::typeseq;
|
|
|
|
namespace scm {
|
|
#ifdef NOT_USING
|
|
const char *
|
|
formalarglstatetype_descr(formalarglstatetype x) {
|
|
switch (x) {
|
|
case formalarglstatetype::invalid:
|
|
return "invalid";
|
|
case formalarglstatetype::argl_0:
|
|
return "argl_0";
|
|
case formalarglstatetype::argl_1a:
|
|
return "argl_1a";
|
|
case formalarglstatetype::argl_1b:
|
|
return "argl_1b";
|
|
case formalarglstatetype::n_formalarglstatetype:
|
|
break;
|
|
}
|
|
|
|
return "?formalarglstatetype";
|
|
}
|
|
#endif
|
|
|
|
DExpectQListSsm::DExpectQListSsm()
|
|
{}
|
|
|
|
DExpectQListSsm *
|
|
DExpectQListSsm::_make(DArena & arena)
|
|
{
|
|
/* out-of-order so argl follows ssm in arena,
|
|
* consistent with any subsequent arglist realloc.
|
|
* Not a load-bearing choice however
|
|
*/
|
|
|
|
void * mem = arena.alloc_for<DExpectQListSsm>();
|
|
|
|
return new (mem) DExpectQListSsm();
|
|
}
|
|
|
|
obj<ASyntaxStateMachine,DExpectQListSsm>
|
|
DExpectQListSsm::make(DArena & arena)
|
|
{
|
|
obj<ASyntaxStateMachine,DExpectQListSsm> retval(_make(arena));
|
|
|
|
return retval;
|
|
}
|
|
|
|
void
|
|
DExpectQListSsm::start(ParserStateMachine * p_psm)
|
|
{
|
|
DArena::Checkpoint ckp = p_psm->parser_alloc().checkpoint();
|
|
|
|
p_psm->push_ssm(ckp, DExpectQListSsm::make(p_psm->parser_alloc()));
|
|
}
|
|
|
|
syntaxstatetype
|
|
DExpectQListSsm::ssm_type() const noexcept {
|
|
return syntaxstatetype::expect_qliteral;
|
|
}
|
|
|
|
std::string_view
|
|
DExpectQListSsm::get_expect_str() const
|
|
{
|
|
return "leftparen|leftbracket|leftbrace|string|f64|i64|bool";
|
|
}
|
|
|
|
void
|
|
DExpectQListSsm::on_token(const Token & tk,
|
|
ParserStateMachine * p_psm)
|
|
{
|
|
switch (tk.tk_type()) {
|
|
case tokentype::tk_f64:
|
|
this->on_f64_token(tk, p_psm);
|
|
return;
|
|
|
|
case tokentype::tk_leftparen:
|
|
case tokentype::tk_comma:
|
|
case tokentype::tk_rightparen:
|
|
case tokentype::tk_lambda:
|
|
case tokentype::tk_def:
|
|
case tokentype::tk_if:
|
|
case tokentype::tk_symbol:
|
|
case tokentype::tk_colon:
|
|
case tokentype::tk_singleassign:
|
|
case tokentype::tk_string:
|
|
case tokentype::tk_i64:
|
|
case tokentype::tk_bool:
|
|
case tokentype::tk_semicolon:
|
|
case tokentype::tk_invalid:
|
|
case tokentype::tk_quote:
|
|
case tokentype::tk_leftbracket:
|
|
case tokentype::tk_rightbracket:
|
|
case tokentype::tk_leftbrace:
|
|
case tokentype::tk_rightbrace:
|
|
case tokentype::tk_leftangle:
|
|
case tokentype::tk_rightangle:
|
|
case tokentype::tk_lessequal:
|
|
case tokentype::tk_greatequal:
|
|
case tokentype::tk_dot:
|
|
case tokentype::tk_doublecolon:
|
|
case tokentype::tk_assign:
|
|
case tokentype::tk_yields:
|
|
case tokentype::tk_plus:
|
|
case tokentype::tk_minus:
|
|
case tokentype::tk_star:
|
|
case tokentype::tk_slash:
|
|
case tokentype::tk_cmpeq:
|
|
case tokentype::tk_cmpne:
|
|
case tokentype::tk_type:
|
|
case tokentype::tk_then:
|
|
case tokentype::tk_else:
|
|
case tokentype::tk_let:
|
|
case tokentype::tk_in:
|
|
case tokentype::tk_end:
|
|
case tokentype::N:
|
|
break;
|
|
}
|
|
|
|
Super::on_token(tk, p_psm);
|
|
}
|
|
|
|
void
|
|
DExpectQListSsm::on_f64_token(const Token & tk,
|
|
ParserStateMachine * p_psm)
|
|
{
|
|
auto literal = DFloat::box<AGCObject>(p_psm->expr_alloc(),
|
|
tk.f64_value());
|
|
|
|
p_psm->pop_ssm();
|
|
p_psm->on_quoted_literal(literal);
|
|
}
|
|
|
|
#ifdef NOT_YET
|
|
void
|
|
DExpectQListSsm::_accept_formal(obj<AAllocator> expr_alloc,
|
|
DArena & parser_alloc,
|
|
const DUniqueString * param_name,
|
|
TypeDescr param_type)
|
|
{
|
|
/* note: param_type can be nullptr */
|
|
TypeRef typeref
|
|
= TypeRef::dwim(TypeRef::prefix_type::from_chars("formal"), param_type);
|
|
|
|
DVariable * var = DVariable::make(expr_alloc,
|
|
param_name,
|
|
typeref);
|
|
|
|
// need AGCObject facet to use DArray here.
|
|
// May want to have gc feature that allows it to use
|
|
// FacetRegistry on memory that stores obj<AExpression,..>
|
|
//
|
|
// In this case doesn't matter since DExpectQListSsm not actually collected!
|
|
|
|
obj<AGCObject,DVariable> var_o(var);
|
|
|
|
if (argl_->size() == argl_->capacity()) {
|
|
// need to expand argl_ capacity.
|
|
// If DArena were to allow it (i.e. offer a realloc() feature,
|
|
// could do this in place since this SSM is at the top of the parser stack.
|
|
|
|
obj<AAllocator,DArena> mm(&parser_alloc);
|
|
DArray * argl_2x = DArray::empty(mm, 2 * argl_->capacity());
|
|
|
|
for (DArray::size_type i = 0, n = argl_->size(); i < n; ++i) {
|
|
// TODO: prefer non-bounds-checked access here
|
|
argl_2x->push_back(argl_->at(i));
|
|
}
|
|
|
|
// update in place
|
|
this->argl_ = argl_2x;
|
|
}
|
|
|
|
this->argl_->push_back(var_o);
|
|
}
|
|
#endif
|
|
|
|
#ifdef NOT_YET
|
|
void
|
|
DExpectQListSsm::on_leftparen_token(const Token & tk,
|
|
ParserStateMachine * p_psm)
|
|
{
|
|
if (fastate_ == formalarglstatetype::argl_0) {
|
|
this->fastate_ = formalarglstatetype::argl_1a;
|
|
|
|
DExpectFormalArgSsm::start(p_psm);
|
|
return;
|
|
}
|
|
|
|
Super::on_token(tk, p_psm);
|
|
}
|
|
|
|
void
|
|
DExpectQListSsm::on_comma_token(const Token & tk,
|
|
ParserStateMachine * p_psm)
|
|
{
|
|
if (fastate_ == formalarglstatetype::argl_1b) {
|
|
this->fastate_ = formalarglstatetype::argl_1a;
|
|
|
|
DExpectFormalArgSsm::start(p_psm);
|
|
return;
|
|
}
|
|
|
|
Super::on_token(tk, p_psm);
|
|
}
|
|
|
|
void
|
|
DExpectQListSsm::on_rightparen_token(const Token & tk,
|
|
ParserStateMachine * p_psm)
|
|
{
|
|
if (fastate_ == formalarglstatetype::argl_1b) {
|
|
DArray * args = argl_;
|
|
|
|
p_psm->pop_ssm();
|
|
p_psm->on_parsed_formal_arglist(args);
|
|
return;
|
|
}
|
|
|
|
Super::on_token(tk, p_psm);
|
|
}
|
|
#endif
|
|
|
|
bool
|
|
DExpectQListSsm::pretty(const ppindentinfo & ppii) const
|
|
{
|
|
return ppii.pps()->pretty_struct(ppii,
|
|
"DExpectQListSsm",
|
|
refrtag("expect", this->get_expect_str()));
|
|
}
|
|
} /*namespace scm*/
|
|
} /*namespace xo*/
|
|
|
|
/* end DExpectQListSsm.cpp */
|