56 lines
2.3 KiB
C++
56 lines
2.3 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 "library/update_declaration.h"
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namespace lean {
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static declaration update_declaration(declaration d, optional<level_param_names> const & ps,
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optional<expr> const & type, optional<expr> const & value) {
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level_param_names _ps = ps ? *ps : d.get_univ_params();
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expr _type = type ? *type : d.get_type();
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expr _value;
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if (d.is_definition()) {
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_value = value ? *value : d.get_value();
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} else {
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lean_assert(!value);
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}
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if (d.is_constant_assumption()) {
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if (is_eqp(d.get_type(), _type) && is_eqp(d.get_univ_params(), _ps))
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return d;
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if (d.is_axiom())
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return mk_axiom(d.get_name(), _ps, _type);
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else
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return mk_constant_assumption(d.get_name(), _ps, _type);
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} else {
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if (is_eqp(d.get_type(), _type) && is_eqp(d.get_value(), _value) && is_eqp(d.get_univ_params(), _ps))
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return d;
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if (d.is_theorem())
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return mk_theorem(d.get_name(), _ps, _type, _value, d.get_weight());
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else
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return mk_definition(d.get_name(), _ps, _type, _value,
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d.get_weight(), d.use_conv_opt());
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}
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}
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declaration update_declaration_univ_params(declaration const & d, level_param_names const & ps) {
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return update_declaration(d, optional<level_param_names>(ps), none_expr(), none_expr());
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}
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declaration update_declaration_type(declaration const & d, expr const & type) {
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return update_declaration(d, optional<level_param_names>(), some_expr(type), none_expr());
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}
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declaration update_declaration_value(declaration const & d, expr const & value) {
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return update_declaration(d, optional<level_param_names>(), none_expr(), some_expr(value));
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}
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declaration update_declaration(declaration const & d, level_param_names const & ps, expr const & type, expr const & value) {
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return update_declaration(d, optional<level_param_names>(ps), some_expr(type), some_expr(value));
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}
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declaration update_declaration(declaration const & d, level_param_names const & ps, expr const & type) {
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return update_declaration(d, optional<level_param_names>(ps), some_expr(type), none_expr());
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}
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}
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