9bd4a7e9b4
@kha, it was a `class parser` vs `struct parser`. I just fixed the warning by using `struct parser` everywhere. It is ugly, but we will eventually delete the old parser.
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
/*
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Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include <string>
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#include <functional>
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#include "kernel/environment.h"
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#include "frontends/lean/decl_util.h"
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#include "frontends/lean/parser_pos_provider.h"
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namespace lean {
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struct parser;
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struct cmd_meta {
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decl_attributes m_attrs;
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decl_modifiers m_modifiers;
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optional<std::string> m_doc_string;
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cmd_meta() {}
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explicit cmd_meta(decl_attributes const & attrs):m_attrs(attrs) {}
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cmd_meta(decl_attributes const & attrs, decl_modifiers const & mods,
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optional<std::string> const & doc = optional<std::string>()):
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m_attrs(attrs), m_modifiers(mods), m_doc_string(doc) {}
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};
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typedef std::function<environment(parser&, cmd_meta const &)> command_fn;
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template<typename F>
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struct cmd_info_tmpl {
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name m_name;
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std::string m_descr;
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F m_fn;
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bool m_skip_token;
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public:
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cmd_info_tmpl(name const & n, char const * d, F const & fn, bool skip_token = true):
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m_name(n), m_descr(d), m_fn(fn), m_skip_token(skip_token) {}
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cmd_info_tmpl(name const & n, char const * d, std::function<environment(parser&)> const & fn, bool skip_token = true):
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cmd_info_tmpl(n, d, [=](parser & p, cmd_meta const & meta) {
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if (meta.m_modifiers)
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throw exception("command does not accept modifiers");
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if (meta.m_attrs)
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throw exception("command does not accept attributes");
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if (meta.m_doc_string)
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throw exception("command does not accept doc string");
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return fn(p);
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}, skip_token) {}
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cmd_info_tmpl() {}
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name const & get_name() const { return m_name; }
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std::string const & get_descr() const { return m_descr; }
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F const & get_fn() const { return m_fn; }
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bool const & get_skip_token() const { return m_skip_token; }
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};
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typedef cmd_info_tmpl<command_fn> cmd_info;
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typedef name_map<cmd_info> cmd_table;
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inline void add_cmd(cmd_table & t, cmd_info const & cmd) { t.insert(cmd.get_name(), cmd); }
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}
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