71 lines
2.9 KiB
C++
71 lines
2.9 KiB
C++
/** @file progress_xs.hpp
|
|
*
|
|
* Author: Roland Conybeare
|
|
**/
|
|
|
|
#pragma once
|
|
|
|
#include "exprstate.hpp"
|
|
//#include <cstdint>
|
|
|
|
namespace xo {
|
|
namespace scm {
|
|
/** @class progress_xs
|
|
* @brief state machine for parsing a schematica runtime-value-expression
|
|
**/
|
|
class progress_xs : public exprstate {
|
|
public:
|
|
progress_xs(rp<Expression> valex);
|
|
virtual ~progress_xs() = default;
|
|
|
|
static const progress_xs * from(const exprstate * x) { return dynamic_cast<const progress_xs *>(x); }
|
|
|
|
static std::unique_ptr<progress_xs> make(rp<Expression> valex);
|
|
|
|
bool admits_f64() const;
|
|
|
|
virtual bool admits_symbol() const override;
|
|
#ifdef OBSOLETE
|
|
bool admits_singleassign() const;
|
|
#endif
|
|
|
|
virtual void on_expr(ref::brw<Expression> expr,
|
|
exprstatestack * p_stack,
|
|
rp<Expression> * p_emit_expr) override;
|
|
virtual void on_symbol_token(const token_type & tk,
|
|
exprstatestack * p_stack,
|
|
rp<Expression> * p_emit_expr) override;
|
|
virtual void on_typedescr(TypeDescr td,
|
|
exprstatestack * /*p_stack*/,
|
|
rp<Expression> * /*p_emit_expr*/) override;
|
|
|
|
virtual void on_def_token(const token_type & tk,
|
|
exprstatestack * p_stack) override;
|
|
virtual void on_colon_token(const token_type & tk,
|
|
exprstatestack * p_stack) override;
|
|
virtual void on_semicolon_token(const token_type & tk,
|
|
exprstatestack * p_stack,
|
|
rp<Expression> * /*p_emit_expr*/) override;
|
|
virtual void on_singleassign_token(const token_type & tk,
|
|
exprstatestack * p_stack) override;
|
|
virtual void on_leftparen_token(const token_type & tk,
|
|
exprstatestack * p_stack,
|
|
rp<Expression> * /*p_emit_expr*/) override;
|
|
virtual void on_rightparen_token(const token_type & tk,
|
|
exprstatestack * p_stack,
|
|
rp<Expression> * /*p_emit_expr*/) override;
|
|
virtual void on_f64_token(const token_type & tk,
|
|
exprstatestack * p_stack,
|
|
rp<Expression> * /*p_emit_expr*/) override;
|
|
|
|
virtual void print(std::ostream & os) const override;
|
|
|
|
private:
|
|
/** populate an expression here **/
|
|
rp<Expression> gen_expr_;
|
|
};
|
|
} /*namespace scm*/
|
|
} /*namespace xo*/
|
|
|
|
|
|
/** end progress_xs.hpp **/
|