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xo-reader2: scaffold on_singleassign_token() in PSM

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This commit is contained in:
Roland Conybeare 2026-01-21 12:59:06 -05:00
commit a3f5b12955
24 changed files with 139 additions and 1 deletions
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6
include/xo/reader2/DDefineSsm.hpp
View file

@ -134,6 +134,12 @@ namespace xo {
void on_colon_token(const Token & tk,
ParserStateMachine * p_psm);
/** update state for this syntax on incoming singleassign token @p tk,
* overall parser state in @p p_psm
**/
void on_singleassign_token(const Token & tk,
ParserStateMachine * p_psm);
/** update state for this syntax after parsing a symbol @p sym;
* overall parser state in @p p_psm
**/

6
include/xo/reader2/DExpectSymbolSsm.hpp
View file

@ -97,6 +97,12 @@ namespace xo {
void on_colon_token(const Token & tk,
ParserStateMachine * p_psm);
/** update state for this syntax on incoming singleassign token @p tk,
* overall parser state in @p p_psm
**/
void on_singleassign_token(const Token & tk,
ParserStateMachine * p_psm);
///@}
/** @defgroup scm-expectsymbol-printable-facet printable facet methods **/
///@{

6
include/xo/reader2/DExpectTypeSsm.hpp
View file

@ -71,6 +71,12 @@ namespace xo {
void on_colon_token(const Token & tk,
ParserStateMachine * p_psm);
/** operate state machine for this syntax on incoming singleassign-token @p tk
* with overall parser state in @p p_psm
**/
void on_singleassign_token(const Token & tk,
ParserStateMachine * p_psm);
/** (Never called).
* Operate state machine for this syntax after symbol
* emitted from nested ssm.

5
include/xo/reader2/DExprSeqState.hpp
View file

@ -85,6 +85,11 @@ namespace xo {
**/
void on_colon_token(const Token & tk, ParserStateMachine * p_psm);
/** update state for this syntax on incoming single-assign token @p tk,
* overall parser state in @p p_psm
**/
void on_singleassign_token(const Token & tk, ParserStateMachine * p_psm);
/** update state for this syntax on parsed symbol @p sym
* from immediately-downstream ssm.
* overall parser state in @p p_psm

3
include/xo/reader2/ParserStateMachine.hpp
View file

@ -116,6 +116,9 @@ namespace xo {
/** operate state machine for incoming colon-token @p tk **/
void on_colon_token(const Token & tk);
/** operate state machine for incoming singleassign-token @p tk **/
void on_singleassign_token(const Token & tk);
///@}
/** @defgroup scm-parserstatemachine-error-entrypoints error entry points **/
///@{

2
include/xo/reader2/ssm/ASyntaxStateMachine.hpp
View file

@ -65,6 +65,8 @@ public:
virtual void on_if_token(Opaque data, const Token & tk, ParserStateMachine * p_psm) = 0;
/** update state machine for incoming colon-token @p tk **/
virtual void on_colon_token(Opaque data, const Token & tk, ParserStateMachine * p_psm) = 0;
/** update state machine for incoming singleassign-token @p tk **/
virtual void on_singleassign_token(Opaque data, const Token & tk, ParserStateMachine * p_psm) = 0;
/** update stat machine for incoming parsed symbol @p sym **/
virtual void on_parsed_symbol(Opaque data, std::string_view sym, ParserStateMachine * p_psm) = 0;
/** operate state machine for incoming type description @p td **/

1
include/xo/reader2/ssm/ISyntaxStateMachine_Any.hpp
View file

@ -64,6 +64,7 @@ namespace scm {
[[noreturn]] void on_def_token(Opaque, const Token &, ParserStateMachine *) override;
[[noreturn]] void on_if_token(Opaque, const Token &, ParserStateMachine *) override;
[[noreturn]] void on_colon_token(Opaque, const Token &, ParserStateMachine *) override;
[[noreturn]] void on_singleassign_token(Opaque, const Token &, ParserStateMachine *) override;
[[noreturn]] void on_parsed_symbol(Opaque, std::string_view, ParserStateMachine *) override;
[[noreturn]] void on_parsed_typedescr(Opaque, TypeDescr, ParserStateMachine *) override;

2
include/xo/reader2/ssm/ISyntaxStateMachine_DDefineSsm.hpp
View file

@ -62,6 +62,8 @@ namespace xo {
static void on_if_token(DDefineSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming colon-token @p tk **/
static void on_colon_token(DDefineSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming singleassign-token @p tk **/
static void on_singleassign_token(DDefineSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update stat machine for incoming parsed symbol @p sym **/
static void on_parsed_symbol(DDefineSsm & self, std::string_view sym, ParserStateMachine * p_psm);
/** operate state machine for incoming type description @p td **/

2
include/xo/reader2/ssm/ISyntaxStateMachine_DExpectSymbolSsm.hpp
View file

@ -62,6 +62,8 @@ namespace xo {
static void on_if_token(DExpectSymbolSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming colon-token @p tk **/
static void on_colon_token(DExpectSymbolSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming singleassign-token @p tk **/
static void on_singleassign_token(DExpectSymbolSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update stat machine for incoming parsed symbol @p sym **/
static void on_parsed_symbol(DExpectSymbolSsm & self, std::string_view sym, ParserStateMachine * p_psm);
/** operate state machine for incoming type description @p td **/

2
include/xo/reader2/ssm/ISyntaxStateMachine_DExpectTypeSsm.hpp
View file

@ -62,6 +62,8 @@ namespace xo {
static void on_if_token(DExpectTypeSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming colon-token @p tk **/
static void on_colon_token(DExpectTypeSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming singleassign-token @p tk **/
static void on_singleassign_token(DExpectTypeSsm & self, const Token & tk, ParserStateMachine * p_psm);
/** update stat machine for incoming parsed symbol @p sym **/
static void on_parsed_symbol(DExpectTypeSsm & self, std::string_view sym, ParserStateMachine * p_psm);
/** operate state machine for incoming type description @p td **/

2
include/xo/reader2/ssm/ISyntaxStateMachine_DExprSeqState.hpp
View file

@ -62,6 +62,8 @@ namespace xo {
static void on_if_token(DExprSeqState & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming colon-token @p tk **/
static void on_colon_token(DExprSeqState & self, const Token & tk, ParserStateMachine * p_psm);
/** update state machine for incoming singleassign-token @p tk **/
static void on_singleassign_token(DExprSeqState & self, const Token & tk, ParserStateMachine * p_psm);
/** update stat machine for incoming parsed symbol @p sym **/
static void on_parsed_symbol(DExprSeqState & self, std::string_view sym, ParserStateMachine * p_psm);
/** operate state machine for incoming type description @p td **/

3
include/xo/reader2/ssm/ISyntaxStateMachine_Xfer.hpp
View file

@ -64,6 +64,9 @@ namespace scm {
void on_colon_token(Opaque data, const Token & tk, ParserStateMachine * p_psm) override {
return I::on_colon_token(_dcast(data), tk, p_psm);
}
void on_singleassign_token(Opaque data, const Token & tk, ParserStateMachine * p_psm) override {
return I::on_singleassign_token(_dcast(data), tk, p_psm);
}
void on_parsed_symbol(Opaque data, std::string_view sym, ParserStateMachine * p_psm) override {
return I::on_parsed_symbol(_dcast(data), sym, p_psm);
}

3
include/xo/reader2/ssm/RSyntaxStateMachine.hpp
View file

@ -68,6 +68,9 @@ public:
void on_colon_token(const Token & tk, ParserStateMachine * p_psm) {
return O::iface()->on_colon_token(O::data(), tk, p_psm);
}
void on_singleassign_token(const Token & tk, ParserStateMachine * p_psm) {
return O::iface()->on_singleassign_token(O::data(), tk, p_psm);
}
void on_parsed_symbol(std::string_view sym, ParserStateMachine * p_psm) {
return O::iface()->on_parsed_symbol(O::data(), sym, p_psm);
}