45 lines
1.5 KiB
C++
45 lines
1.5 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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#include "frontends/lean/parser_config.h"
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#include "frontends/lean/builtin_exprs.h"
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#include "frontends/lean/builtin_cmds.h"
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#include "frontends/lean/builtin_tactic_cmds.h"
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namespace lean {
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parser_config::parser_config() {
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m_tokens = mk_default_token_table();
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m_nud = get_builtin_nud_table();
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m_led = get_builtin_led_table();
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m_cmds = get_builtin_cmds();
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m_tactic_cmds = get_builtin_tactic_cmds();
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}
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struct parser_ext : public environment_extension {
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// Configuration for a Pratt's parser
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parser_config m_cfg;
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};
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struct parser_ext_reg {
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unsigned m_ext_id;
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parser_ext_reg() { m_ext_id = environment::register_extension(std::make_shared<parser_ext>()); }
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};
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static parser_ext_reg g_ext;
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static parser_ext const & get_extension(environment const & env) {
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return static_cast<parser_ext const &>(env.get_extension(g_ext.m_ext_id));
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}
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static environment update(environment const & env, parser_ext const & ext) {
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return env.update(g_ext.m_ext_id, std::make_shared<parser_ext>(ext));
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}
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parser_config const & get_parser_config(environment const & env) {
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return get_extension(env).m_cfg;
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}
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environment update_parser_config(environment const & env, parser_config const & c) {
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parser_ext ext = get_extension(env);
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ext.m_cfg = c;
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return update(env, ext);
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}
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}
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