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88047bbb45
tests/general/float_test.exp3:
tests/general/float_test.m:
tests/general/read_dir_regression.exp4:
tests/general/read_dir_regression.m:
tests/hard_coded/remove_file.exp2:
tests/hard_coded/remove_file.m:
Delete Erlang backend specific expected outputs.
tests/hard_coded/Mmakefile:
tests/hard_coded/erlang_deconstruct.exp:
tests/hard_coded/erlang_deconstruct.m:
tests/hard_coded/existential_list.exp:
tests/hard_coded/existential_list.m:
tests/valid/Mmakefile:
tests/valid/erl_ite_vars.m:
tests/valid/zf_erlang_bug.m:
Delete erlang target specific tests.
tests/*:
Delete Erlang foreign procs and foreign types.
117 lines
4.0 KiB
Mathematica
117 lines
4.0 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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% Various checks that impurity declarations are treated properly.
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% XXX We miss some things that we should warn about: see the XXXs below.
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%
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%---------------------------------------------------------------------------%
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:- module purity_warnings.
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:- interface.
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:- import_module io.
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:- impure pred main(io::di, io::uo) is det.
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:- implementation.
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:- import_module string.
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main(!IO) :-
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impure impure_pred1(!IO),
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impure impure_pred2(!IO),
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semipure semipure_pred(!IO),
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impure impure_method1a(!IO),
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impure impure_method2a(!IO),
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semipure semipure_method_a(!IO),
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impure impure_method1b(!IO),
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impure impure_method2b(!IO),
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semipure semipure_method_b(!IO),
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semipure io.write_string("main 1\n", !IO), % warn
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impure io.print("main 2\n", !IO). % warn
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:- impure pred impure_pred1(io::di, io::uo) is det. % warn
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impure_pred1(!IO) :-
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io.write_string("impure_pred1\n", !IO).
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:- impure pred impure_pred2(io::di, io::uo) is det. % warn
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impure_pred2(!IO) :-
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io.write_string("impure_pred2\n", !IO),
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semipure get_x(X),
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io.print("X = ", !IO),
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io.print(X, !IO),
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io.nl(!IO).
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:- semipure pred semipure_pred(io::di, io::uo) is det.
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semipure_pred(!IO) :-
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semipure io.write_string("semipure_pred1\n", !IO). % warn
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:- typeclass foo(IO) where [
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(impure pred impure_method1a(IO::di, IO::uo) is det),
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(impure pred impure_method1b(IO::di, IO::uo) is det),
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(impure pred impure_method2a(IO::di, IO::uo) is det),
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(impure pred impure_method2b(IO::di, IO::uo) is det),
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(semipure pred semipure_method_a(IO::di, IO::uo) is det),
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(semipure pred semipure_method_b(IO::di, IO::uo) is det)
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].
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:- instance foo(io) where [
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pred(impure_method1a/2) is impure_method1a_impl,
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pred(impure_method2a/2 )is impure_method2a_impl,
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pred(semipure_method_a/2 )is semipure_method_a_impl,
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( impure_method1b(!IO) :-
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impure io.print("impure_method1b\n", !IO) % XXX should warn
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),
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( impure_method2b(!IO) :-
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io.write_string("impure_method2b\n", !IO),
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semipure get_x(X),
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io.print("X = ", !IO),
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io.print(X, !IO),
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io.nl(!IO)
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),
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( semipure_method_b(!IO) :-
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semipure io.print("semipure_method_b\n", !IO) % XXX should warn
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)
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].
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:- impure pred impure_method1a_impl(io::di, io::uo) is det.
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impure_method1a_impl(!IO) :-
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impure io.print("impure_method1a_impl\n", !IO). % warn
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:- semipure pred impure_method2a_impl(io::di, io::uo) is det.
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impure_method2a_impl(!IO) :-
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io.write_string("impure_method2a_impl\n", !IO),
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semipure get_x(X),
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io.print("X = ", !IO),
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io.print(X, !IO),
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io.nl(!IO).
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:- semipure pred semipure_method_a_impl(io::di, io::uo) is det.
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semipure_method_a_impl(!IO) :-
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semipure print("semipure_method_a_impl\n", !IO). % warn
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:- pragma foreign_decl("C", "extern int x;").
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:- pragma foreign_code("C", "int x = 0;").
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:- pragma foreign_code("C#", "
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static int x = 0;
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").
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:- pragma foreign_code("Java", "
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static int x = 0;
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").
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:- impure pred set_x(int::in) is det.
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:- pragma foreign_proc("C", set_x(X::in), [will_not_call_mercury], "x=X;" ).
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:- pragma foreign_proc("C#", set_x(X::in), [will_not_call_mercury], "x=X;" ).
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:- pragma foreign_proc("Java", set_x(X::in), [will_not_call_mercury], "x=X;" ).
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:- impure pred incr_x is det.
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:- pragma foreign_proc("C", incr_x, [will_not_call_mercury], "++x;" ).
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:- pragma foreign_proc("C#", incr_x, [will_not_call_mercury], "++x;" ).
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:- pragma foreign_proc("Java", incr_x, [will_not_call_mercury], "++x;" ).
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:- semipure pred get_x(int::out) is det.
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:- pragma promise_semipure(get_x/1).
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:- pragma foreign_proc("C", get_x(X::out), [will_not_call_mercury], "X=x;").
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:- pragma foreign_proc("C#", get_x(X::out), [will_not_call_mercury], "X=x;").
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:- pragma foreign_proc("Java", get_x(X::out), [will_not_call_mercury], "X=x;").
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