46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
/*
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Copyright (c) 2015 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 "kernel/environment.h"
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#include "library/attribute_manager.h"
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#include "library/io_state.h"
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namespace lean {
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unsigned get_default_priority(options const & opts);
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class parser;
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class decl_attributes {
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public:
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struct entry {
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attribute const * m_attr;
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attr_data_ptr m_params;
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bool deleted() const { return !static_cast<bool>(m_params); }
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};
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private:
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bool m_persistent;
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bool m_parsing_only;
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list<entry> m_entries;
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optional<unsigned> m_prio;
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void parse_core(parser & p, bool compact);
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public:
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decl_attributes(bool persistent = true): m_persistent(persistent), m_parsing_only(false) {}
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void set_attribute(environment const & env, name const & attr_name);
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/* attributes: zero-or-more [ ... ] */
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void parse(parser & p);
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/* Parse attributes after `@[` ... ] */
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void parse_compact(parser & p);
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environment apply(environment env, io_state const & ios, name const & d) const;
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list<entry> const & get_entries() const { return m_entries; }
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bool is_parsing_only() const { return m_parsing_only; }
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optional<unsigned > get_priority() const { return m_prio; }
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bool ok_for_inductive_type() const;
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bool has_class() const;
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operator bool() const { return static_cast<bool>(m_entries); }
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};
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void initialize_decl_attributes();
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void finalize_decl_attributes();
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}
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