85 lines
3.2 KiB
C++
85 lines
3.2 KiB
C++
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/*
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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 <string>
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#include "util/sstream.h"
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#include "kernel/type_checker.h"
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#include "library/string.h"
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#include "library/tactic/tactic.h"
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#include "library/tactic/expr_to_tactic.h"
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namespace lean {
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tactic trace_tactic(std::string const & msg) {
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return tactic1([=](environment const &, io_state const & ios, proof_state const & s) -> proof_state {
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ios.get_diagnostic_channel() << msg << "\n";
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ios.get_diagnostic_channel().get_stream().flush();
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return s;
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});
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}
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tactic trace_tactic(sstream const & msg) {
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return trace_tactic(msg.str());
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}
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tactic trace_tactic(char const * msg) {
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return trace_tactic(std::string(msg));
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}
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tactic trace_state_tactic(std::string const & fname, pair<unsigned, unsigned> const & pos) {
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return tactic1([=](environment const & env, io_state const & ios, proof_state const & s) -> proof_state {
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diagnostic(env, ios) << fname << ":" << pos.first << ":" << pos.second << ": proof state\n"
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<< s << endl;
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ios.get_diagnostic_channel().get_stream().flush();
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return s;
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});
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}
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tactic trace_state_tactic() {
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return tactic1([=](environment const & env, io_state const & ios, proof_state const & s) -> proof_state {
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diagnostic(env, ios) << "proof state\n" << s << endl;
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ios.get_diagnostic_channel().get_stream().flush();
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return s;
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});
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}
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tactic suppress_trace(tactic const & t) {
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return tactic([=](environment const & env, io_state const & ios, proof_state const & s) -> proof_state_seq {
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io_state new_ios(ios);
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std::shared_ptr<output_channel> out(std::make_shared<string_output_channel>());
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new_ios.set_diagnostic_channel(out);
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return t(env, new_ios, s);
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});
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}
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void initialize_trace_tactic() {
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register_tac(name({"tactic", "state"}),
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[](type_checker &, elaborate_fn const &, expr const & e, pos_info_provider const * p) {
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if (p)
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if (auto it = p->get_pos_info(e))
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return trace_state_tactic(std::string(p->get_file_name()), *it);
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return trace_state_tactic();
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});
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register_tac(name({"tactic", "trace"}),
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[](type_checker & tc, elaborate_fn const &, expr const & e, pos_info_provider const *) {
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buffer<expr> args;
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get_app_args(e, args);
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if (args.size() != 1)
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throw expr_to_tactic_exception(e, "invalid trace tactic, argument expected");
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if (auto str = to_string(args[0]))
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return trace_tactic(*str);
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else if (auto str = to_string(tc.whnf(args[0]).first))
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return trace_tactic(*str);
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else
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throw expr_to_tactic_exception(e, "invalid trace tactic, string value expected");
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});
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}
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void finalize_trace_tactic() {
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}
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}
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