xo-reader2: refactor: move Lambda genfacet files to subdirs

This commit is contained in:
Roland Conybeare 2026-03-11 10:27:04 -05:00
commit 309af002d2
10 changed files with 17 additions and 16 deletions

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/** @file DLambdaSsm.hpp
*
* Author: Roland Conybeare
**/
#pragma once
#include "DSyntaxStateMachine.hpp"
#include <xo/expression2/DLambdaExpr.hpp>
#include <xo/expression2/SymbolTable.hpp>
//#include <xo/expression2/DLocalSymtab.hpp>
namespace xo {
namespace scm {
class ParserStateMachine;
/**
* @text
*
* lambda ( name(1) : type(1), ..., ) : type body-expr ;
* ^ ^ ^ ^ ^ ^
* | | | | lm_4 lm_5
* | | | lm_3
* lm_0 lm_1 lm_2
*
* lm_0 --on_lambda_token()--> lm_1
* lm_1 --on_formal_arglist()--> lm_2
* lm_2 --on_expr()--> lm_3
* lm_5 --on_semicolon_token()--> (done)
*
* @endtext
**/
enum class lambdastatetype {
invalid = -1,
lm_0,
lm_1,
lm_2,
lm_3,
lm_4,
lm_5,
n_lambdastatetype
};
extern const char *
lambdastatetype_descr(lambdastatetype x);
inline std::ostream &
operator<< (std::ostream & os, lambdastatetype x) {
os << lambdastatetype_descr(x);
return os;
}
/** @class DLambdaSsm
* @brief parsing state-machine for a lambda-expression
**/
class DLambdaSsm : public DSyntaxStateMachine<DLambdaSsm> {
public:
using Super = DSyntaxStateMachine<DLambdaSsm>;
using DLocalSymtab = xo::scm::DLocalSymtab;
using AAllocator = xo::mm::AAllocator;
using DArena = xo::mm::DArena;
using TypeDescr = xo::reflect::TypeDescr;
using ppindentinfo = xo::print::ppindentinfo;
public:
/** @defgroup scm-lambdassm-ctors **/
///@{
DLambdaSsm();
/** create instance using memory from @p parser_mm **/
static obj<ASyntaxStateMachine,DLambdaSsm> make(DArena & parser_mm);
/** create instance using memory from @p parser_mm **/
static DLambdaSsm * _make(DArena & parser_mm);
///@}
/** @defgroup scm-lambdassm-methods **/
///@{
static const char * ssm_classname() { return "DLambdaSsm"; }
static void start(ParserStateMachine * p_psm);
/** update ssm on lambda keyword token @p tk,
* with overall parser state in @p p_psm
**/
void on_lambda_token(const Token & tk,
ParserStateMachine * p_psm);
/** update ssm on yield token @p tk,
* with overall parser state in @p p_psm
**/
void on_yields_token(const Token & tk,
ParserStateMachine * p_psm);
/** update ssm on leftbrace token @p tk,
* with overall parser state in @p p_psm
**/
void on_leftbrace_token(const Token & tk,
ParserStateMachine * p_psm);
///@}
/** @defgroup scm-lambdassm-syntaxstatemachine-facet **/
///@{
/** identify this nested state machine **/
syntaxstatetype ssm_type() const noexcept;
/** text describing expected/allowed input to this ssm in current state.
* Intended to drive error messages
**/
std::string_view get_expect_str() const noexcept;
/** update this ssm for incoming token @p tk **/
void on_token(const Token & tk,
ParserStateMachine * p_psm);
#ifdef OBSOLETE
/** update this ssm when nested parser
* emits @p td.
**/
void on_parsed_symbol(std::string_view sym,
ParserStateMachine * p_psm);
#endif
/** update this ssm when nested parser
* emits @p td.
**/
void on_parsed_typedescr(TypeDescr td,
ParserStateMachine * p_psm);
#ifdef OBSOLETE
/** update this ssm to consume parsed formal (name,value)
* from nested (and now expired) ssm
**/
void on_parsed_formal(const DUniqueString * sym,
TypeDescr td,
ParserStateMachine * p_psm);
#endif
/** consume formal params @p arglist from completed nested ssm,
* with overall parser state in @p p_psm.
**/
void on_parsed_formal_arglist(DArray * arglist,
ParserStateMachine * p_psm);
/** update this ssm when nested parser
* emits expression @p expr
**/
void on_parsed_expression(obj<AExpression> expr,
ParserStateMachine * p_psm);
/** update this ssm when nested parser
* emits expression @p expr
**/
void on_parsed_expression_with_token(obj<AExpression> expr,
const Token & tk,
ParserStateMachine * p_psm);
#ifdef NOT_YET
virtual const char * get_expect_str() const override;
virtual void on_leftbrace_token(const token_type & tk,
parserstatemachine * p_psm) override;
virtual void on_colon_token(const token_type & tk,
parserstatemachine * p_psm) override;
virtual void on_semicolon_token(const token_type & tk,
parserstatemachine * p_psm) override;
virtual void on_f64_token(const token_type & tk,
parserstatemachine * p_psm) final override;
virtual void print(std::ostream & os) const override;
virtual bool pretty_print(const print::ppindentinfo & ppii) const override;
#endif
///@}
/** @defgroup scm-lambdassm-printable-facet **/
///@{
/** pretty-printing support **/
bool pretty(const ppindentinfo & ppii) const;
///@}
private:
/** parsing state-machine state **/
lambdastatetype lmstate_ = lambdastatetype::lm_0;
/** lambda environment (for formal parameters) **/
DLocalSymtab * local_symtab_ = nullptr;
/** explicit return type (if supplied) **/
TypeDescr explicit_return_td_ = nullptr;
/** lambda signature (when known) **/
TypeDescr lambda_td_ = nullptr;
/** body expression **/
obj<AExpression> body_;
/** parent environment **/
obj<ASymbolTable> parent_symtab_;
};
} /*namespace scm*/
} /*namespace xo*/
/* end DLambdaSsm.hpp */

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/** @file IPrintable_DLambdaSsm.hpp
*
* Generated automagically from ingredients:
* 1. code generator:
* [xo-facet/codegen/genfacet]
* arguments:
* --input [idl/IPrintable_DLambdaSsm.json5]
* 2. jinja2 template for abstract facet .hpp file:
* [iface_facet_repr.hpp.j2]
* 3. idl for facet methods
* [idl/IPrintable_DLambdaSsm.json5]
**/
#pragma once
#include "Printable.hpp"
#include <xo/printable2/Printable.hpp>
#include <xo/printable2/detail/IPrintable_Xfer.hpp>
#include "DLambdaSsm.hpp"
namespace xo { namespace scm { class IPrintable_DLambdaSsm; } }
namespace xo {
namespace facet {
template <>
struct FacetImplementation<xo::print::APrintable,
xo::scm::DLambdaSsm>
{
using ImplType = xo::print::IPrintable_Xfer
<xo::scm::DLambdaSsm,
xo::scm::IPrintable_DLambdaSsm>;
};
}
}
namespace xo {
namespace scm {
/** @class IPrintable_DLambdaSsm
**/
class IPrintable_DLambdaSsm {
public:
/** @defgroup scm-printable-dlambdassm-type-traits **/
///@{
using ppindentinfo = xo::print::APrintable::ppindentinfo;
using Copaque = xo::print::APrintable::Copaque;
using Opaque = xo::print::APrintable::Opaque;
///@}
/** @defgroup scm-printable-dlambdassm-methods **/
///@{
// const methods
/** Pretty-printing support for this object.
See [xo-indentlog/xo/indentlog/pretty.hpp] **/
static bool pretty(const DLambdaSsm & self, const ppindentinfo & ppii);
// non-const methods
///@}
};
} /*namespace scm*/
} /*namespace xo*/
/* end */

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/** @file ISyntaxStateMachine_DLambdaSsm.hpp
*
* Generated automagically from ingredients:
* 1. code generator:
* [xo-facet/codegen/genfacet]
* arguments:
* --input [idl/ISyntaxStateMachine_DLambdaSsm.json5]
* 2. jinja2 template for abstract facet .hpp file:
* [iface_facet_repr.hpp.j2]
* 3. idl for facet methods
* [idl/ISyntaxStateMachine_DLambdaSsm.json5]
**/
#pragma once
#include "SyntaxStateMachine.hpp"
#include "SyntaxStateMachine.hpp"
#include "ssm/ISyntaxStateMachine_Xfer.hpp"
#include "DLambdaSsm.hpp"
namespace xo { namespace scm { class ISyntaxStateMachine_DLambdaSsm; } }
namespace xo {
namespace facet {
template <>
struct FacetImplementation<xo::scm::ASyntaxStateMachine,
xo::scm::DLambdaSsm>
{
using ImplType = xo::scm::ISyntaxStateMachine_Xfer
<xo::scm::DLambdaSsm,
xo::scm::ISyntaxStateMachine_DLambdaSsm>;
};
}
}
namespace xo {
namespace scm {
/** @class ISyntaxStateMachine_DLambdaSsm
**/
class ISyntaxStateMachine_DLambdaSsm {
public:
/** @defgroup scm-syntaxstatemachine-dlambdassm-type-traits **/
///@{
using TypeDescr = xo::scm::ASyntaxStateMachine::TypeDescr;
using AGCObject = xo::scm::ASyntaxStateMachine::AGCObject;
using Copaque = xo::scm::ASyntaxStateMachine::Copaque;
using Opaque = xo::scm::ASyntaxStateMachine::Opaque;
///@}
/** @defgroup scm-syntaxstatemachine-dlambdassm-methods **/
///@{
// const methods
/** identify a type of syntax state machine **/
static syntaxstatetype ssm_type(const DLambdaSsm & self) noexcept;
/** text describing expected/allowed input to this ssm in current state **/
static std::string_view get_expect_str(const DLambdaSsm & self) noexcept;
// non-const methods
/** operate state machine for incoming token @p tk **/
static void on_token(DLambdaSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update stat machine for incoming parsed symbol @p sym **/
static void on_parsed_symbol(DLambdaSsm & self, std::string_view sym, ParserStateMachine * p_psm);
/** operate state machine for incoming type description @p td **/
static void on_parsed_typedescr(DLambdaSsm & self, TypeDescr td, ParserStateMachine * p_psm);
/** update state machine for type emitted by nested ssm **/
static void on_parsed_type(DLambdaSsm & self, obj<AType> type, ParserStateMachine * p_psm);
/** operate state machine for formal emitted by nested ssm **/
static void on_parsed_formal(DLambdaSsm & self, const DUniqueString * param_name, TypeDescr param_type, ParserStateMachine * p_psm);
/** operate state machine for formal emitted by nested ssm **/
static void on_parsed_formal_with_token(DLambdaSsm & self, const DUniqueString * param_name, TypeDescr param_type, const Token & tk, ParserStateMachine * p_psm);
/** consume formal arglist emitted by nested ssm **/
static void on_parsed_formal_arglist(DLambdaSsm & self, DArray * arglist, ParserStateMachine * p_psm);
/** update state machine for nested parsed expression @p expr **/
static void on_parsed_expression(DLambdaSsm & self, obj<AExpression> expr, ParserStateMachine * p_psm);
/** update state machine @p p_psm for incoming parsed expression @p expr followed by token @p tk **/
static void on_parsed_expression_with_token(DLambdaSsm & self, obj<AExpression> expr, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for nested quoted literal @p lit **/
static void on_quoted_literal(DLambdaSsm & self, obj<AGCObject> lit, ParserStateMachine * p_psm);
///@}
};
} /*namespace scm*/
} /*namespace xo*/
/* end */