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xo-reader: refactor: mv expr_progress impl -new-> progress_xs.*pp

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This commit is contained in:
Roland Conybeare 2024-08-08 16:34:35 -04:00
commit 5d3e92d114
5 changed files with 316 additions and 69 deletions
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4
include/xo/reader/exprstate.hpp
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@ -87,9 +87,11 @@ namespace xo {
static std::unique_ptr<exprstate> expect_type() {
return std::make_unique<exprstate>(exprstate(exprstatetype::expect_type, nullptr));
}
#ifdef RELOCATED
static std::unique_ptr<exprstate> make_expr_progress(rp<Expression> expr) {
return std::make_unique<exprstate>(exprstate(exprstatetype::expr_progress, expr));
}
#endif
static std::unique_ptr<exprstate> lparen_0() {
return std::make_unique<exprstate>(exprstate(exprstatetype::lparen_0, nullptr));
}
@ -135,7 +137,7 @@ namespace xo {
/** print human-readable representation on @p os **/
virtual void print(std::ostream & os) const;
protected:
public:
virtual void on_def(exprstatestack * p_stack);
virtual void on_symbol(const token_type & tk,
exprstatestack * p_stack,

70
include/xo/reader/progress_xs.hpp Normal file
View file

@ -0,0 +1,70 @@
/** @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);
virtual bool admits_definition() const override;
virtual bool admits_symbol() const override;
virtual bool admits_colon() const override;
virtual bool admits_semicolon() const override;
virtual bool admits_singleassign() const override;
virtual bool admits_leftparen() const override;
virtual bool admits_rightparen() const override;
virtual bool admits_f64() const override;
// virtual void on_f64(..) override
virtual void on_def(exprstatestack * p_stack) override;
virtual void on_expr(ref::brw<Expression> expr,
exprstatestack * p_stack,
rp<Expression> * p_emit_expr) override;
virtual void on_symbol(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_colon(exprstatestack * p_stack) override;
virtual void on_semicolon(exprstatestack * p_stack,
rp<Expression> * /*p_emit_expr*/) override;
virtual void on_singleassign(exprstatestack * p_stack) override;
virtual void on_leftparen(exprstatestack * p_stack,
rp<Expression> * /*p_emit_expr*/) override;
virtual void on_rightparen(exprstatestack * p_stack,
rp<Expression> * /*p_emit_expr*/) override;
virtual void on_f64(const token_type & tk,
exprstatestack * p_stack,
rp<Expression> * /*p_emit_expr*/) override;
virtual void print(std::ostream & os) const override;
private:
#ifdef NOT_YET
/** populate an expression here **/
rp<Expression> gen_expr_;
#endif
};
} /*namespace scm*/
} /*namespace xo*/
/** end progress_xs.hpp **/