58 lines
1.7 KiB
C++
58 lines
1.7 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 <string>
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#include "kernel/find_fn.h"
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#include "kernel/for_each_fn.h"
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#include "kernel/environment.h"
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#include "library/sorry.h"
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#include "library/constants.h"
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#include "library/util.h"
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namespace lean {
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expr mk_sorry(abstract_type_context & ctx, expr const & ty, bool synthetic) {
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level u = get_level(ctx, ty);
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return mk_app(mk_constant(get_sorry_ax_name(), levels(u)), ty, synthetic ? mk_bool_tt() : mk_bool_ff());
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}
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bool is_sorry(expr const & e) {
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return is_app_of(e, get_sorry_ax_name()) && get_app_num_args(e) >= 2;
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}
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bool is_synthetic_sorry(expr const & e) {
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if (!is_sorry(e)) return false;
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buffer<expr> args;
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get_app_args(e, args);
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return is_constant(args[1], get_bool_tt_name());
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}
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bool has_synthetic_sorry(expr const & ex) {
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return static_cast<bool>(find(ex, [] (expr const & e, unsigned) { return is_synthetic_sorry(e); }));
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}
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bool has_sorry(expr const & ex) {
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return static_cast<bool>(find(ex, [] (expr const & e, unsigned) { return is_sorry(e); }));
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}
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bool has_sorry(declaration const & decl) {
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return has_sorry(decl.get_type()) || (decl.has_value() && has_sorry(decl.get_value()));
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}
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expr const & sorry_type(expr const & sry) {
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lean_assert(is_sorry(sry));
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buffer<expr> args;
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get_app_args(sry, args);
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return args[0];
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}
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bool has_sorry(environment const & env) {
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bool found_sorry = false;
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env.for_each_declaration([&] (declaration const & decl) {
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if (!found_sorry && has_sorry(decl)) found_sorry = true;
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});
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return found_sorry;
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}
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}
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