50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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Copyright (c) 2013 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 <iostream>
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#include "util/test.h"
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#include "kernel/abstract.h"
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#include "kernel/printer.h"
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#include "library/max_sharing.h"
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using namespace lean;
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static void tst1() {
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max_sharing_fn max_fn;
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expr a1 = Const("a");
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expr a2 = Const("a");
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expr F1 = Eq(a1, a2);
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lean_assert(!is_eqp(eq_lhs(F1), eq_rhs(F1)));
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expr F2 = max_fn(F1);
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lean_assert(is_eqp(eq_lhs(F2), eq_rhs(F2)));
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expr x = Const("x");
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expr y = Const("y");
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expr f = Const("f");
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expr N = Const("N");
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F1 = f(Fun({x, N}, f(x, x)), Fun({y, N}, f(y, y)));
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lean_assert(!is_eqp(arg(F1, 1), arg(F1, 2)));
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F2 = max_fn(F1);
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std::cout << F2 << "\n";
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lean_assert(is_eqp(arg(F2, 1), arg(F2, 2)));
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max_fn.clear();
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local_context lctx{mk_lift(1, 1), mk_inst(0, a1)};
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expr m1 = mk_metavar("m1", lctx);
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expr m2 = mk_metavar("m1", lctx);
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F1 = f(m1, m2);
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lean_assert(!is_eqp(arg(F1, 1), arg(F1, 2)));
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F2 = max_fn(F1);
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std::cout << F2 << "\n";
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lean_assert(is_eqp(arg(F2, 1), arg(F2, 2)));
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F1 = f(Let({x, f(a1)}, f(x, x)), Let({y, f(a1)}, f(y, y)));
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lean_assert(!is_eqp(arg(F1, 1), arg(F1, 2)));
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F2 = max_fn(F1);
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std::cout << F2 << "\n";
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lean_assert(is_eqp(arg(F2, 1), arg(F2, 2)));
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}
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int main() {
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tst1();
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return has_violations() ? 1 : 0;
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}
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