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https://github.com/Mercury-Language/mercury.git
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166 lines
4.4 KiB
Mathematica
166 lines
4.4 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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%
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% Regression test:
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%
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% This test ensures that output from io.write is put on the correct
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% output stream. All the functionality of io.write is tested so that
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% an additional changes (such as adding a printf instead of a
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% fprintf(current_stream, ...)) should be caught.
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%
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% The Mercury compiler of 20 Dec 1996 failed to correctly run this test.
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%
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% Author: trd
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%
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:- module write_reg1.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is cc_multi.
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:- implementation.
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:- import_module deconstruct.
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:- import_module int.
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:- import_module list.
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:- import_module map.
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:- import_module term.
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:- import_module univ.
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:- type enum
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---> one
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; two
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; three.
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:- type fruit
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---> apple(list(int))
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; banana(list(enum)).
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:- type thingie
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---> foo
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; bar(int)
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; bar(int, int)
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; qux(int)
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; quux(int)
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; quuux(int, int)
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; wombat
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; zoom(int)
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; zap(int, float)
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; zip(int, int)
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; zop(float, float).
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:- type poly(A, B)
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---> poly_one(A)
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; poly_two(B)
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; poly_three(B, A, poly(B, A)).
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:- type no_tag
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---> qwerty(int).
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main(!IO) :-
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io.stderr_stream(StdErr, !IO),
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io.set_output_stream(StdErr, _StdOut, !IO),
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test_discriminated(!IO),
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test_polymorphism(!IO),
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test_builtins(StdErr, !IO),
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test_other(!IO).
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:- pred test_discriminated(io::di, io::uo) is det.
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test_discriminated(!IO) :-
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io.write_string("TESTING DISCRIMINATED UNIONS\n", !IO),
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% test enumerations
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io.write(one, !IO), newline(!IO),
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io.write(two, !IO), newline(!IO),
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io.write(three, !IO), newline(!IO),
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% test simple tags
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io.write(apple([9, 5, 1]), !IO), newline(!IO),
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io.write(banana([three, one, two]), !IO), newline(!IO),
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% test complicated tags
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io.write(zop(3.3, 2.03), !IO), newline(!IO),
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io.write(zip(3, 2), !IO), newline(!IO),
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io.write(zap(3, -2.111), !IO), newline(!IO),
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% test complicated constant
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io.write(wombat, !IO), newline(!IO),
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io.write(foo, !IO), newline(!IO),
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newline(!IO).
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:- pred test_polymorphism(io::di, io::uo) is det.
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test_polymorphism(!IO) :-
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io.write_string("TESTING POLYMORPHISM\n", !IO),
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io.write(poly_one([2399.3]) : poly(list(float), float), !IO), newline(!IO),
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io.write(poly_two(3) : poly(int, int), !IO), newline(!IO),
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io.write(poly_three(3.33, 4, poly_one(9.11)), !IO), newline(!IO),
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newline(!IO).
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:- pred test_builtins(io.output_stream::in, io::di, io::uo) is cc_multi.
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test_builtins(StdErr, !IO) :-
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io.write_string("TESTING BUILTINS\n", !IO),
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% test strings
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io.write("", !IO), newline(!IO),
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io.write("Hello, world\n", !IO), newline(!IO),
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io.write("Foo%sFoo", !IO), newline(!IO),
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io.write("""", !IO), newline(!IO), % interesting - prints """ of course
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% test characters
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io.write('a', !IO), newline(!IO),
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io.write('&', !IO), newline(!IO),
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% test floats
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io.write(3.14159, !IO), newline(!IO),
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io.write(11.28324983E-22, !IO), newline(!IO),
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io.write(22.3954899E22, !IO), newline(!IO),
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% test integers
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io.write(-65, !IO), newline(!IO),
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io.write(4, !IO), newline(!IO),
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% test univ.
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type_to_univ(["hi! I'm a univ!"], Univ),
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io.write(Univ, !IO), newline(!IO),
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% test predicates
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io.write(newline, !IO), newline(!IO),
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io.write(StdErr, include_details_cc, newline, !IO), newline(!IO),
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newline(!IO).
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% Note: testing abstract types is always going to have results
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% that are dependent on the implementation. If someone changes
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% the implementation, the results of this test can change.
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%
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:- pred test_other(io::di, io::uo) is det.
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test_other(!IO) :-
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io.write_string("TESTING OTHER TYPES\n", !IO),
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term.init_var_supply(VarSupply),
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term.create_var(Var : var, VarSupply, NewVarSupply),
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io.write(Var, !IO), newline(!IO),
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io.write(VarSupply, !IO), newline(!IO),
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io.write(NewVarSupply, !IO), newline(!IO),
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% presently, at least, map is an equivalence and an abstract type.
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map.init(Map : map(int, int)),
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io.write(Map, !IO), newline(!IO),
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% a no tag type
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io.write(qwerty(4), !IO), newline(!IO),
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newline(!IO).
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:- pred newline(io::di, io::uo) is det.
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newline(!IO) :-
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io.write_char('\n', !IO).
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