55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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Copyright (c) 2019 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 "runtime/sstream.h"
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#include "library/module.h"
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#include "library/compiler/util.h"
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#include "library/compiler/init_attribute.h"
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namespace lean {
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struct llnf_code_ext : public environment_extension {
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comp_decls m_code;
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};
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struct llnf_code_ext_reg {
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unsigned m_ext_id;
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llnf_code_ext_reg() { m_ext_id = environment::register_extension(new llnf_code_ext()); }
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};
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static llnf_code_ext_reg * g_ext = nullptr;
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static llnf_code_ext const & get_extension(environment const & env) {
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return static_cast<llnf_code_ext const &>(env.get_extension(g_ext->m_ext_id));
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}
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static environment update(environment const & env, llnf_code_ext const & ext) {
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return env.update(g_ext->m_ext_id, new llnf_code_ext(ext));
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}
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environment save_llnf_code(environment const & env, comp_decls const & ds) {
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llnf_code_ext ext = get_extension(env);
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/* Check whether constants with `[init]` attribute have arity 0.
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We cannot perform this check at registration time because attributes are set before
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code generation. */
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for (comp_decl const & d : ds) {
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if (has_init_attribute(env, d.fst()) && get_num_nested_lambdas(d.snd()) != 0) {
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throw exception(sstream() << "invalid [init] attribute, '" << d.fst() << "' must not be a function");
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}
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}
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ext.m_code = append(ext.m_code, ds);
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return update(env, ext);
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}
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comp_decls get_llnf_code(environment const & env) {
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return get_extension(env).m_code;
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}
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void initialize_llnf_code() {
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g_ext = new llnf_code_ext_reg();
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}
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void finalize_llnf_code() {
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delete g_ext;
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}
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}
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