xo-expression2/include/xo/reader/parserstatemachine.hpp

36 lines
982 B
C++

/* file parserstatemachine.hpp
*
* author: Roland Conybeare, Aug 2024
*/
#pragma once
#include "exprstate.hpp"
namespace xo {
namespace scm {
/** @class parserstatemachine
* @brief public parser state.
*
* Schematica parser state; sent to subsidiary single-feature state machines.
* For example entry points for the lambda feature (@ref lambda_xs)
* will accept a non-const parserstatemachine pointer argument
**/
class parserstatemachine {
public:
using Expression = xo::ast::Expression;
public:
parserstatemachine(exprstatestack * p_stack,
rp<Expression> * p_emit_expr)
: p_stack_{p_stack}, p_emit_expr_{p_emit_expr} {}
public:
exprstatestack * p_stack_;
rp<Expression> * p_emit_expr_;
};
} /*namespace scm*/
} /*namespace xo*/
/* end parserstatemachine.hpp */