Estimated hours taken: 5
[This change was by Ralph Becket.
I'm just the person who reviewed it and committed it. -fjh.]
Add functions for the single output det predicates in a number
of modules in the standard library. Basically, for each
:- pred f(in, ..., in, out) is det.
I have added the declaration
:- func f(in, ..., in) = out.
and definition
f(X1, ..., Xn) = Y :-
f(X1, ..., Xn, Y).
library/char.m:
library/dir.m:
library/map.m:
library/string.m:
library/list.m:
library/set.m:
Make the changes described above.
library/array.m:
As above, except array input modes are all array_ui or
array_di as appropriate and array output modes are array_uo.
library/int.m:
Added forward versions of +/2, */2 and -/2 as plus/2, times/2
and minus/2 respectively, to make it easier to pass these
as arguments to higher-order predicates.
Also added func constants for max_int, min_int and bits_per_int.
library/integer.m:
Replaced local functions for list head, tail and length with
calls to equivalent functions now defined in list.m.
library/io.m:
Added func for error_message/2.
library/list.m:
Add functions det_head/1 and det_tail/1 which abort on null lists.
library/set.m:
Add functions map/2, filter_map/2 and fold/3.
library/std_util.m:
Added utility function to construct a pair object from its
arguments and general purpose higher order functions for
partial functions and for function composition, exponentiation
and exchanging the arguments of a binary function.
Estimated hours taken: 0.5
library/*.m:
compiler/*.m:
Undo Zoltan's bogus update of all the copyright dates.
The dates in the copyright header should reflect the years
in which the file was modified (and no, changes to the
copyright header itself don't count as modifications).
Estimated hours taken: 3
Enable --warn-interface-imports by default. This was turned off while
list and term were defined in mercury_builtin.m, since it caused many
warnings.
Fix all the unused interface imports that have been added since then.
compiler/options.m:
Enable --warn-interface-imports by default.
compiler/module_qual.m:
Fix formatting inconsistencies with module names in warning
messages. (".m" was not appended to module names if there was
only one module).
compiler/*.m:
library/*.m:
tests/invalid/type_loop.m:
tests/warnings/*.m:
Remove usused interface imports, or move them into
implementation (mostly bool, list and std_util).
library/*.m:
Improve the documentation.
Add a "Stability: low/medium/high" comment to all modules,
which describes the stability of the interface to that module.
ops.m:
Add `:' as an infix operator.
require.m:
Implement require/1, since higher-order predicates now work.
term.m:
Use the type `comparison_result' from mercury_builtin.m,
rather than defining an identical type `comparison'.
value_number.nl:
a lot less functionality is missing now :-)
atsort.nl:
approximate topological sort for value numbering
opt_*.nl:
changes to supprt value numbering
llds.nl, *_gen.nl:
changed livevals/1 into livevals/2 to support value numbering
list.nl:
added a predicate to delete a list (set) of items from a list
peephole.nl:
implement shortcircuiting inside computed goto label lists. Not tested
since the only place we use computed gotos has no opportunities for
short circuiting.
options.nl:
added option to control the maximum number of repetitions of
the peephole optimizations; default value is 2.
dir.nl:
fixed spelling error
Makefile.mercury:
Override the MERCURY_LIB_OBJS variable when invoking ml.
This avoids some bootstrapping problems.
Also, add mercury_compile.nu.
Makefile.common:
Bump NU-Prolog's -u option up to 2000 (8M), to avoid some memory
problems.
array.nl, bintree.nl, char.nl, dir.nl, globals.nl, list.nl, map.nl, modes.nl,
prog_util.nl, stack.nl, std_util.nl, string.nl, term.nl:
Avoid the use of implied modes.
code_info.nl, bimap.nl, make_hlds.nl, mercury_compile.nl,
mercury_to_mercury.nl, unify_proc.nl:
Fix determinism errors which had previously not been discovered
because of either implied modes or running out of memory.
(Note that I had to change the interface to bimap__lookup, since
it's not possible to make it bidirectional.)
code_util.nl, llds.nl, opt_debug.nl, value_number.nl:
Rename `operator' as `binary_op'.
hlds.nl, code_info.nl, unify_gen.nl, llds.nl, opt_debug.nl, switch_gen.nl:
*** Handle simple cases of higher-order pred terms. ***
(We don't yet handle taking the address of an overloaded
predicate or a predicate with multiple modes.
We don't handle closures. call/1 and call/N are not yet implemented.
This has not yet been tested.)
make_hlds.nl:
Modify the mode priority ordering so that semidet modes get
selected before det ones.
llds.nl:
Don't include the priority part of the mode number in the mangled
label name. *** Note: this will break some things! ***
mercury_compile.nl:
Move the NU-Prolog hacks into mercury_compile.nu.nl.
switch_gen.nl:
Fix a simple logic bug in handling the grab/slap of the code_info.
prog_io.nl, builtins.nl, int.nl:
Fix bugs and omissions with handling of the new arithmetic operators.
prog_io.nl:
As a quick hack, strip off calls to io__gc_call
(this avoids spurious error messages which are due to
the fact that we don't get mode analysis right in those cases).
dir.nl:
Add a new library module for file and directory name handling.
string.nl, list.nl:
Add a bunch of new preds.
code_info.nl:
list__nth_member_lookup has been renamed list__index1_det.
io.nu.nl:
Change io__progname so that it uses the new dir__basename.
prog_io.nl:
Fix the type error left in my last change to prog_io.nl.
Change a few XXX comments, since the things they comment
about are wishlist items, not XXX-level problems.
ite_gen.nl, code_info.nl:
Fix determinism problem.
