649 lines
22 KiB
C++
649 lines
22 KiB
C++
/* @file exprstate.cpp */
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#include "exprstate.hpp"
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#include "exprstatestack.hpp"
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#include "parserstatemachine.hpp"
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#include "pretty_parserstatemachine.hpp"
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#include "pretty_expression.hpp"
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//#include "formal_arg.hpp"
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#include "xo/expression/Variable.hpp"
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#include "xo/indentlog/print/vector.hpp"
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#include "xo/indentlog/print/pretty_vector.hpp"
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#include <stdexcept>
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//#include "define_xs.hpp"
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//#include "progress_xs.hpp"
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//#include "paren_xs.hpp"
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//#include "expect_expr_xs.hpp"
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//#include "xo/expression/Constant.hpp"
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//#include "xo/reflect/Reflect.hpp"
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namespace xo {
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//using xo::scm::Constant;
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//using xo::reflect::Reflect;
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using xo::reflect::TypeDescr;
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using xo::print::ppindentinfo;
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namespace scm {
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const char *
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exprstatetype_descr(exprstatetype x) {
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switch (x) {
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case exprstatetype::invalid:
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return "?invalid";
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case exprstatetype::expect_toplevel_expression_sequence:
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return "expect_toplevel_expression_sequence";
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case exprstatetype::defexpr:
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return "defexpr";
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case exprstatetype::lambdaexpr:
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return "lambdaexpr";
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case exprstatetype::applyexpr:
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return "applyexpr";
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case exprstatetype::parenexpr:
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return "parenexpr";
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case exprstatetype::sequenceexpr:
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return "sequenceexpr";
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case exprstatetype::let1expr:
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return "let1expr";
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case exprstatetype::ifexpr:
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return "ifexpr";
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case exprstatetype::expect_rhs_expression:
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return "expect_rhs_expression";
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case exprstatetype::expect_symbol:
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return "expect_symbol";
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case exprstatetype::expect_type:
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return "expect_type";
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case exprstatetype::expect_formal_arglist:
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return "expect_formal_arglist";
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case exprstatetype::expect_formal:
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return "expect_formal";
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case exprstatetype::expr_progress:
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return "expr_progress";
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case exprstatetype::n_exprstatetype:
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break;
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}
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return "???";
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}
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void
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exprstate::on_def_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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log && log(xtag("exstype", p_psm->top_exprstate().exs_type()));
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constexpr const char * c_self_name = "exprstate::on_def_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_lambda_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr const char * c_self_name = "exprstate::on_lambda_token";
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const char * exp = this->get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_symbol_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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log && log(xtag("exstype", p_psm->top_exprstate().exs_type()));
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constexpr const char * c_self_name = "exprstate::on_symbol_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_typedescr(TypeDescr td,
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parserstatemachine * p_psm)
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{
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/* returning type description to something that wants it */
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scope log(XO_DEBUG(p_psm->debug_flag()));
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log && log(xtag("exstype",
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p_psm->top_exprstate().exs_type()));
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constexpr const char * c_self_name = "exprstate::on_typedescr";
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const char * exp = get_expect_str();
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this->illegal_input_on_type(c_self_name, td, exp, p_psm);
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}
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void
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exprstate::on_formal(const rp<Variable> & formal,
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parserstatemachine * p_psm)
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{
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/* returning type description to something that wants it */
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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log && log(xtag("exstype",
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p_psm->top_exprstate().exs_type()));
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constexpr const char * c_self_name = "exprstate::on_formal";
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const char * exp = this->get_expect_str();
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std::string errmsg = tostr("unexpected formal-arg for parsing state",
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xtag("expecting", exp),
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xtag("formal", formal),
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xtag("state", this->exs_type()));
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p_psm->on_error(c_self_name, std::move(errmsg));
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}
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void
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exprstate::on_formal_arglist(const std::vector<rp<Variable>> & argl,
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parserstatemachine * p_psm)
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{
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/* returning type description to something that wants it */
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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log && log(xtag("exstype",
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p_psm->top_exprstate().exs_type()));
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constexpr const char * c_self_name = "exprstate::on_formal_arglist";
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const char * exp = get_expect_str();
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std::string errmsg = tostr("unexpected formal-arglist for parsing state",
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xtag("expecting", exp),
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xtag("argl", argl),
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xtag("state", this->exs_type()));
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p_psm->on_error(c_self_name, std::move(errmsg));
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}
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void
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exprstate::on_colon_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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scope log(XO_DEBUG(p_psm->debug_flag()));
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constexpr const char * c_self_name = "exprstate::on_colon";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_comma_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_comma";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_semicolon_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_semicolon";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_singleassign_token(const token_type & tk,
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parserstatemachine * p_psm) {
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_singleassign_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_leftparen_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_leftparen_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_rightparen_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_rightparen";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_leftbrace_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_leftbrace_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_rightbrace_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_rightbrace_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_operator_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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constexpr const char * c_self_name = "exprstate::on_operator_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_if_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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scope log(XO_DEBUG(p_psm->debug_flag()));
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constexpr const char * c_self_name = "exprstate::on_if_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_then_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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scope log(XO_DEBUG(p_psm->debug_flag()));
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constexpr const char * c_self_name = "exprstate::on_then_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_else_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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scope log(XO_DEBUG(p_psm->debug_flag()));
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constexpr const char * c_self_name = "exprstate::on_else_token";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_bool_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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scope log(XO_DEBUG(p_psm->debug_flag()));
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constexpr const char * c_self_name = "exprstate::on_bool";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_i64_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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scope log(XO_DEBUG(p_psm->debug_flag()));
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constexpr const char * c_self_name = "exprstate::on_i64";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_f64_token(const token_type & tk,
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parserstatemachine * p_psm)
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{
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scope log(XO_DEBUG(p_psm->debug_flag()));
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constexpr const char * c_self_name = "exprstate::on_f64";
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const char * exp = get_expect_str();
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this->illegal_input_on_token(c_self_name, tk, exp, p_psm);
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}
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void
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exprstate::on_input(const token_type & tk,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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log && log(xtag("tk", tk));
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log && log(xtag("state", *this));
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log && log(xtag("psm", p_psm));
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log && log(xtag("proofoflogging", true));
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switch (tk.tk_type()) {
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case tokentype::tk_def:
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this->on_def_token(tk, p_psm);
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return;
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case tokentype::tk_lambda:
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this->on_lambda_token(tk, p_psm);
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return;
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case tokentype::tk_bool:
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this->on_bool_token(tk, p_psm);
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return;
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case tokentype::tk_i64:
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this->on_i64_token(tk, p_psm);
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return;
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case tokentype::tk_f64:
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this->on_f64_token(tk, p_psm);
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return;
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case tokentype::tk_string:
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assert(false);
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return;
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case tokentype::tk_symbol:
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this->on_symbol_token(tk, p_psm);
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return;
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case tokentype::tk_leftparen:
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this->on_leftparen_token(tk, p_psm);
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return;
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case tokentype::tk_rightparen:
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this->on_rightparen_token(tk, p_psm);
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return;
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case tokentype::tk_leftbracket:
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case tokentype::tk_rightbracket:
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assert(false);
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break;
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case tokentype::tk_leftbrace:
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this->on_leftbrace_token(tk, p_psm);
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return;
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case tokentype::tk_rightbrace:
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this->on_rightbrace_token(tk, p_psm);
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return;
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case tokentype::tk_leftangle:
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case tokentype::tk_rightangle:
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case tokentype::tk_lessequal:
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case tokentype::tk_greatequal:
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this->on_operator_token(tk, p_psm);
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return;
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case tokentype::tk_dot:
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assert(false);
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return;
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case tokentype::tk_comma:
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this->on_comma_token(tk, p_psm);
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return;
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case tokentype::tk_colon:
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this->on_colon_token(tk, p_psm);
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return;
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case tokentype::tk_doublecolon:
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assert(false);
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return;
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case tokentype::tk_semicolon:
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this->on_semicolon_token(tk, p_psm);
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return;
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case tokentype::tk_singleassign:
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this->on_singleassign_token(tk, p_psm);
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return;
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case tokentype::tk_assign:
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case tokentype::tk_yields:
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assert(false);
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break;
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case tokentype::tk_plus:
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case tokentype::tk_minus:
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case tokentype::tk_star:
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case tokentype::tk_slash:
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case tokentype::tk_cmpeq:
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case tokentype::tk_cmpne:
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this->on_operator_token(tk, p_psm);
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return;
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case tokentype::tk_type:
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assert(false);
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return;
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case tokentype::tk_if:
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this->on_if_token(tk, p_psm);
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return;
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case tokentype::tk_then:
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this->on_then_token(tk, p_psm);
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return;
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case tokentype::tk_else:
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this->on_else_token(tk, p_psm);
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return;
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case tokentype::tk_let:
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case tokentype::tk_in:
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case tokentype::tk_end:
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assert(false);
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return;
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case tokentype::tk_invalid:
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case tokentype::n_tokentype:
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assert(false);
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return;
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}
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assert(false);
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}
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const char *
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exprstate::get_expect_str() const
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{
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return "?expect";
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}
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void
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exprstate::on_expr(bp<Expression> expr,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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log && log(xtag("exstype", this->exs_type_),
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xtag("expr", expr));
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constexpr const char * c_self_name = "exprstate::on_expr";
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const char * exp = get_expect_str();
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this->illegal_input_on_expr(c_self_name, expr, exp, p_psm);
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} /*on_expr*/
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void
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exprstate::on_expr_with_semicolon(bp<Expression> expr,
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parserstatemachine * p_psm)
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{
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constexpr bool c_debug_flag = true;
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scope log(XO_DEBUG(c_debug_flag));
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log && log(xtag("exstype", this->exs_type_),
|
|
xtag("expr", expr));
|
|
|
|
constexpr const char * c_self_name = "exprstate::on_expr_with_semicolon";
|
|
const char * exp = get_expect_str();
|
|
|
|
this->illegal_input_on_expr(c_self_name, expr, exp, p_psm);
|
|
} /*on_expr_with_semicolon*/
|
|
|
|
void
|
|
exprstate::on_symbol(const std::string & symbol_name,
|
|
parserstatemachine * p_psm)
|
|
{
|
|
/* unreachable - derived class that can receive
|
|
* will override this method
|
|
*/
|
|
constexpr bool c_debug_flag = true;
|
|
scope log(XO_DEBUG(c_debug_flag));
|
|
|
|
log && log(xtag("exstype", this->exs_type_),
|
|
xtag("symbol_name", symbol_name));
|
|
|
|
constexpr const char * c_self_name = "exprstate::on_symbol";
|
|
const char * exp = get_expect_str();
|
|
|
|
this->illegal_input_on_symbol(c_self_name, symbol_name, exp, p_psm);
|
|
}
|
|
|
|
void
|
|
exprstate::print(std::ostream & os) const {
|
|
os << "<exprstate"
|
|
<< xtag("this", (void*)this)
|
|
<< xtag("type", exs_type_);
|
|
os << ">";
|
|
}
|
|
|
|
bool
|
|
exprstate::pretty_print(const ppindentinfo & ppii) const
|
|
{
|
|
return ppii.pps()->pretty_struct(ppii, "exprstate",
|
|
refrtag("type", exs_type_));
|
|
}
|
|
|
|
void
|
|
exprstate::illegal_input_error(const char * self_name,
|
|
const token_type & tk) const
|
|
{
|
|
throw std::runtime_error
|
|
(tostr(self_name,
|
|
": unexpected input token for parsing state",
|
|
xtag("token", tk),
|
|
xtag("state", *this)));
|
|
}
|
|
|
|
void
|
|
exprstate::illegal_input_on_expr(const char * self_name,
|
|
bp<Expression> expr,
|
|
const char * expect_str,
|
|
parserstatemachine * p_psm) const
|
|
{
|
|
std::string errmsg = tostr("unexpected expression for parsing state",
|
|
xtag("expecting", expect_str),
|
|
xtag("expr", expr),
|
|
xtag("state", this->exs_type()));
|
|
|
|
p_psm->on_error(self_name, std::move(errmsg));
|
|
}
|
|
|
|
void
|
|
exprstate::illegal_input_on_token(const char * self_name,
|
|
const token_type & tk,
|
|
const char * expect_str,
|
|
parserstatemachine * p_psm) const
|
|
{
|
|
std::string errmsg = tostr("unexpected token for parsing state",
|
|
xtag("expecting", expect_str),
|
|
xtag("token", tk.tk_type()),
|
|
xtag("text", tk.text()),
|
|
xtag("state", this->exs_type()));
|
|
|
|
p_psm->on_error(self_name, std::move(errmsg));
|
|
}
|
|
|
|
void
|
|
exprstate::illegal_input_on_symbol(const char * self_name,
|
|
const std::string & symbol,
|
|
const char * expect_str,
|
|
parserstatemachine * p_psm) const
|
|
{
|
|
std::string errmsg = tostr("unexpected symbol",
|
|
xtag("expecting", expect_str),
|
|
xtag("symbol", symbol),
|
|
xtag("state", this->exs_type()));
|
|
|
|
p_psm->on_error(self_name, std::move(errmsg));
|
|
}
|
|
|
|
void
|
|
exprstate::illegal_input_on_type(const char * self_name,
|
|
const TypeDescr td,
|
|
const char * expect_str,
|
|
parserstatemachine * p_psm) const
|
|
{
|
|
std::string errmsg = tostr("unexpected type",
|
|
xtag("expecting", expect_str),
|
|
xtag("type", td),
|
|
xtag("state", this->exs_type()));
|
|
|
|
p_psm->on_error(self_name, std::move(errmsg));
|
|
}
|
|
|
|
void
|
|
exprstate::unknown_variable_error(const char * self_name,
|
|
const token_type & tk,
|
|
parserstatemachine * p_psm) const
|
|
{
|
|
std::string errmsg = tostr("unknown variable name",
|
|
xtag("var", tk.text()));
|
|
|
|
p_psm->on_error(self_name, std::move(errmsg));
|
|
}
|
|
} /*namespace scm*/
|
|
} /*namespace xo*/
|
|
|
|
/* end exprstate.cpp */
|