51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/** @file sequence_xs.hpp
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*
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* Author: Roland Conybeare
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**/
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#pragma once
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#include "exprstate.hpp"
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#include <vector>
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namespace xo {
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namespace ast { class Sequence; }
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namespace ast { class Lambda; }
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namespace scm {
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class sequence_xs : public exprstate {
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public:
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using Sequence = xo::ast::Sequence;
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using Lambda = xo::ast::Lambda;
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public:
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/** start parsing a sequence-expr.
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* input begins with first expression in the sequence.
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**/
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static void start(parserstatemachine * p_psm);
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virtual void on_expr(bp<Expression> expr,
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parserstatemachine * p_psm) override;
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virtual void on_expr_with_semicolon(bp<Expression> expr,
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parserstatemachine * p_psm) override;
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virtual void on_rightbrace_token(const token_type & tk,
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parserstatemachine * p_psm) override;
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virtual void print(std::ostream & os) const override;
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private:
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sequence_xs();
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/** named ctor idiom **/
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static std::unique_ptr<sequence_xs> make();
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private:
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/** will build SequenceExpr from in-order contents of this vector **/
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std::vector<rp<Expression>> expr_v_;
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};
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} /*namespace scm*/
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} /*namespace xo*/
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/** end sequence_xs.hpp **/
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