lean2/src/tests/frontends/lean/frontend.cpp
Leonardo de Moura 5eaf04518b refactor(*): rename Bool to Prop
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-22 09:43:18 -07:00

225 lines
7.7 KiB
C++

/*
Copyright (c) 2013 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Author: Leonardo de Moura
*/
#include <vector>
#include "util/test.h"
#include "kernel/environment.h"
#include "kernel/kernel_exception.h"
#include "kernel/kernel.h"
#include "kernel/abstract.h"
#include "library/printer.h"
#include "library/bin_op.h"
#include "library/io_state_stream.h"
#include "frontends/lean/frontend.h"
#include "frontends/lean/operator_info.h"
#include "frontends/lean/pp.h"
#include "frontends/lua/register_modules.h"
using namespace lean;
static void tst1() {
environment env; io_state ios = init_frontend(env);
env->add_uvar_cnstr("tst");
environment c = env->mk_child();
lean_assert(c->get_uvar("tst") == env->get_uvar("tst"));
lean_assert(env->has_children());
}
static void tst2() {
operator_info op1 = infixl(name("and"), 10);
operator_info op2 = infixr(name("implies"), 20);
lean_assert(op1.get_precedence() == 10);
lean_assert(op1.get_fixity() == fixity::Infixl);
op1.add_expr(mk_and_fn());
operator_info op3 = infixl(name("+"), 10);
op3.add_expr(Const(name{"Int", "plus"}));
op3.add_expr(Const(name{"Real", "plus"}));
std::cout << op3.get_denotations() << "\n";
lean_assert(length(op3.get_denotations()) == 2);
operator_info op4 = op3.copy();
op4.add_expr(Const(name{"Complex", "plus"}));
std::cout << op4.get_denotations() << "\n";
lean_assert(length(op3.get_denotations()) == 2);
lean_assert(length(op4.get_denotations()) == 3);
lean_assert(op4.get_fixity() == fixity::Infixl);
lean_assert(op4.get_op_name() == op3.get_op_name());
lean_assert(prefix("tst", 20).get_fixity() == fixity::Prefix);
lean_assert(postfix("!", 20).get_fixity() == fixity::Postfix);
lean_assert(length(mixfixl({"if", "then", "else"}, 10).get_op_name_parts()) == 3);
lean_assert(mixfixc({"if", "then", "else", "endif"}, 10).get_fixity() == fixity::Mixfixc);
std::cout << mixfixc({"if", "then", "else", "endif"}, 10).get_op_name_parts() << "\n";
std::cout << op4 << "\n";
std::cout << op2 << "\n";
std::cout << mixfixc({"if", "then", "else", "endif"}, 10) << "\n";
}
static void tst3() {
environment env;
std::cout << "====================\n";
std::cout << env << "\n";
}
static void tst4() {
environment env; io_state ios = init_frontend(env);
formatter fmt = mk_pp_formatter(env);
context c;
c = extend(c, "x", Prop);
c = extend(c, "y", Prop);
c = extend(c, "x", Prop, Var(1));
c = extend(c, "x", Prop, Var(2));
c = extend(c, "z", Prop, Var(1));
c = extend(c, "x", Prop, Var(4));
std::cout << fmt(c) << "\n";
}
static void tst5() {
std::cout << "=================\n";
environment env; io_state ios = init_frontend(env);
formatter fmt = mk_pp_formatter(env);
env->add_var("A", Type());
env->add_var("x", Const("A"));
optional<object> obj = env->find_object("x");
lean_assert(obj);
lean_assert(obj->get_name() == "x");
std::cout << fmt(*obj) << "\n";
optional<object> obj2 = env->find_object("y");
lean_assert(!obj2);
try {
env->get_object("y");
lean_unreachable();
} catch (unknown_name_exception & ex) {
std::cout << ex.what() << " " << ex.get_name() << "\n";
}
}
class alien_cell : public neutral_object_cell {
unsigned m_data[128];
public:
alien_cell() {}
unsigned & get_data(unsigned i) { return m_data[i]; }
virtual char const * keyword() const { return "alien"; }
virtual void write(serializer & ) const { lean_unreachable(); } // LCOV_EXCL_LINE
};
static void tst6() {
std::cout << "=================\n";
environment env; io_state ios = init_frontend(env);
env->add_neutral_object(new alien_cell());
formatter fmt = mk_pp_formatter(env);
std::cout << fmt(env) << "\n";
}
static void tst7() {
environment env; io_state ios = init_frontend(env);
formatter fmt = mk_pp_formatter(env);
std::cout << fmt(And(Const("x"), Const("y"))) << "\n";
}
static void tst8() {
environment env; io_state ios = init_frontend(env);
formatter fmt = mk_pp_formatter(env);
add_infixl(env, ios, "<-$->", 10, mk_refl_fn());
std::cout << fmt(*(env->find_object("trivial"))) << "\n";
}
static void tst9() {
environment env; io_state ios = init_frontend(env);
lean_assert(!env->has_children());
{
environment c = env->mk_child();
lean_assert(env->has_children());
}
lean_assert(!env->has_children());
env->add_uvar_cnstr("l", level()+1);
lean_assert(env->get_uvar("l") == level("l"));
try { env->get_uvar("l2"); lean_unreachable(); }
catch (exception &) {}
env->add_definition("x", Prop, True);
object const & obj = env->get_object("x");
lean_assert(obj.get_name() == "x");
lean_assert(is_bool(obj.get_type()));
lean_assert(obj.get_value() == True);
try { env->get_object("y"); lean_unreachable(); }
catch (exception &) {}
lean_assert(!env->find_object("y"));
env->add_definition("y", False);
lean_assert(is_bool(env->find_object("y")->get_type()));
lean_assert(env->has_object("y"));
lean_assert(!env->has_object("z"));
bool found = false;
std::for_each(env->begin_objects(), env->end_objects(), [&](object const & obj) { if (obj.has_name() && obj.get_name() == "y") found = true; });
lean_assert(found);
add_postfix(env, ios, "!", 10, Const("factorial"));
name parts[] = {"if", "then", "else"};
add_mixfixl(env, ios, 3, parts, 10, Const("if"));
}
static void tst10() {
environment env; io_state ios = init_frontend(env);
formatter fmt = mk_pp_formatter(env);
expr x = Const("xxxxxxxxxxxx");
expr y = Const("y");
expr z = Const("foo");
expr e = Let({{x, True}, {y, And({x, x, x, x, x, x, x, x})}, {z, And(x, y)}}, Or({x, x, x, x, x, x, x, x, x, z, z, z, z, z, z, z}));
std::cout << e << "\n";
std::cout << fmt(e) << "\n";
}
static void tst11() {
environment env; io_state ios = init_frontend(env);
expr A = Const("A");
env->add_var("g", Pi({A, Type()}, A >> (A >> A)));
lean_assert(!has_implicit_arguments(env, "g"));
mark_implicit_arguments(env, "g", {true, false, false});
lean_assert(has_implicit_arguments(env, "g"))
name gexp = get_explicit_version(env, "g");
lean_assert(env->find_object(gexp));
lean_assert(env->find_object("g")->get_type() == env->find_object(gexp)->get_type());
lean_assert(get_implicit_arguments(env, "g") == std::vector<bool>({true})); // the trailing "false" marks are removed
try {
mark_implicit_arguments(env, "g", {true, false, false});
lean_unreachable();
} catch (exception & ex) {
std::cout << "Expected error: " << ex.what() << std::endl;
}
env->add_var("s", Pi({A, Type()}, A >> (A >> A)));
try {
mark_implicit_arguments(env, "s", {true, true, true, true});
lean_unreachable();
} catch (exception & ex) {
std::cout << "Expected error: " << ex.what() << std::endl;
}
env->add_var(name("@h"), Pi({A, Type()}, A >> (A >> A)));
env->add_var("h", Pi({A, Type()}, A >> (A >> A)));
try {
mark_implicit_arguments(env, "h", {true, false, false});
lean_unreachable();
} catch (exception & ex) {
std::cout << "Expected error: " << ex.what() << std::endl;
}
try {
mark_implicit_arguments(env, "u", {true, false});
lean_unreachable();
} catch (exception & ex) {
std::cout << "Expected error: " << ex.what() << std::endl;
}
}
int main() {
save_stack_info();
register_modules();
tst1();
tst2();
tst3();
tst4();
tst5();
tst6();
tst7();
tst8();
tst9();
tst10();
tst11();
return has_violations() ? 1 : 0;
}