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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2
3/*
4 * Main authors:
5 * Guido Tack <guido.tack@monash.edu>
6 */
7
8/* This Source Code Form is subject to the terms of the Mozilla Public
9 * License, v. 2.0. If a copy of the MPL was not distributed with this
10 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
11
12#include <minizinc/flat_exp.hh>
13
14namespace MiniZinc {
15
16EE flatten_arraylit(EnvI& env, const Ctx& ctx, Expression* e, VarDecl* r, VarDecl* b) {
17 CallStackItem _csi(env, e);
18 EE ret;
19 auto* al = e->cast<ArrayLit>();
20 if (al->flat()) {
21 ret.b = bind(env, Ctx(), b, constants().literalTrue);
22 ret.r = bind(env, Ctx(), r, al);
23 } else {
24 std::vector<EE> elems_ee(al->size());
25 for (unsigned int i = al->size(); (i--) != 0U;) {
26 elems_ee[i] = flat_exp(env, ctx, (*al)[i], nullptr, nullptr);
27 }
28 std::vector<Expression*> elems(elems_ee.size());
29 for (auto i = static_cast<unsigned int>(elems.size()); (i--) != 0U;) {
30 elems[i] = elems_ee[i].r();
31 }
32 std::vector<std::pair<int, int> > dims(al->dims());
33 for (unsigned int i = al->dims(); (i--) != 0U;) {
34 dims[i] = std::pair<int, int>(al->min(i), al->max(i));
35 }
36 KeepAlive ka;
37 {
38 GCLock lock;
39 auto* alr = new ArrayLit(Location().introduce(), elems, dims);
40 alr->type(al->type());
41 alr->flat(true);
42 ka = alr;
43 }
44 ret.b = conj(env, b, Ctx(), elems_ee);
45 ret.r = bind(env, Ctx(), r, ka());
46 }
47 return ret;
48}
49
50} // namespace MiniZinc