Commit Graph

544 Commits

Author SHA1 Message Date
Zoltan Somogyi
310048037c Try to guard against future bitrot.
tools/bootcheck:
    Build the dependencies for auxiliary programs, and the programs themselves,
    in the browser and profiler directories.

Mmakefile:
    Provide targets for bootcheck to use to make dependencies for the
    auxiliary programs in the browser and profiler directories.

browser/Mmakefile:
    Take the two aux programs in this directory out of the "all" target.
    Due to past bitrot, one gets errors during compilation, the other
    during linking. (The "all" target is not used by default, which is why
    this has not been a problem.)

    Add depend_aux and aux targets that should build these programs
    if they are ever fixed. The aux target is empty for now; the depend_aux
    target does make dependencies for both aux programs (since that still
    works, and we want to keep it that way).

profiler/Mmakefile:
    Add depend_aux and aux targets that build the one auxiliary program
    in this directory that works now. Add a comment about the other program
    that doesn't.
2018-01-09 01:05:42 +11:00
Zoltan Somogyi
5a7809b69c Document some bitrot.
browse_test.m:
    Fix all compilation errors in this test program. Some link errors
    remain.

declarative_test.m:
    Fix some compilation errors in this test program. (I don't know what
    the right fix is for the remaining errors.)

Mmakefile:
    Document the fact that neither program compiles cleanly anymore.
2017-12-30 15:18:37 +11:00
Zoltan Somogyi
bb3ef7de5d Fix indentation. 2017-12-30 15:17:20 +11:00
Zoltan Somogyi
014ca2144b Enable --warn-insts-with-functors-without-type.
configure.ac:
    Require that the installed compiler support this option (which I added
    about two weeks ago).

browser/MDB_FLAGS.in:
compiler/COMP_FLAGS.in:
deep_profiler/DEEP_FLAGS.in:
library/LIB_FLAGS.in:
mdbcomp/MDBCOMP_FLAGS.in:
mfilterjavac/MFILTERJAVAC_FLAGS.in:
profiler/PROF_FLAGS.in:
slice/SLICE_FLAGS.in:
ssdb/SSDB_FLAGS.in:
    Specify this option by default for every directory that contains
    Mercury code.
2017-11-22 01:48:36 +11:00
Zoltan Somogyi
d9e576a2b2 Specify the type for inst definitions.
browser/*.m:
compiler/*.m:
deep_profiler/*.m:
library/*.m:
mdbcomp/*.m:
ssdb/*.m:
    Specify the type constructor for every inst definition that lists
    the functors that values of that type may be bound to.

    In library/maybe.m, delete the inst maybe_errors/1, because
    (a) its name is misleading, since it is for the maybe_error/1 type (no s),
    and (b) there is already an inst with the non-misleading name maybe_error
    which had an identical definition.

    In compiler/dep_par_conj.m, delete two insts that were duplicates
    of insts defined in hlds_goal.m, and replace references to them
    accordingly.
2017-11-08 16:54:18 +11:00
Julien Fischer
ba24a880fe Add targets for building stage 3 C# source files.
browser/Mmakefile:
compiler/Mmakefile:
deep_profiler/Mmakefile:
library/Mmakefile:
mdbcomp/Mmakefile:
profiler/Mmakefile:
slice/Mmakefile:
ssdb/Mmakefile:
    Add the 'css' target for building the C# source files.
2017-10-22 06:38:07 -04:00
Julien Fischer
345bdfff55 Add targets for building the Java source files only.
browser/Mmakefile:
compiler/Mmakefile:
deep_profiler/Mmakefile:
mdbcomp/mdbcmp/Mmakefile:
profiler/Mmakefile:
slice/Mmakefile:
ssdb/Mmakefile:
    As above (required for stage 3).

    Delete residual references to the IL backend.
2017-10-21 21:36:40 -04:00
Peter Wang
c2a45192f4 Address Zoltan's review of the web-browser based term browser change.
browse.m:
    Remove the correct temporary file in
    save_and_browse_browser_term_web.

    Reword instructions when web_browser_cmd is not set.

term_to_html.m:
    Reword a comment.
2017-08-17 11:11:55 +10:00
Zoltan Somogyi
e5c7e1c92e Fix a namespace pollution problem.
browser/percent_encoding.m:
    Make this module a submodule of mdb.m. Without this, the Mercury compiler
    creates symbol names for its exported predicates that do not begin with
    one of the prefixes reserved for the Mercury implementation, thus
    potentially clashing with symbols that may be used by user code.

browser/mdb.m:
    Add the new module to this package.

browser/term_to_html.m:
    Update the import of percent_encoding.m.
2017-08-17 06:49:36 +10:00
Peter Wang
05c0847173 Delete unused option in browser_params_to_string.
browser/browser_info.m:
    browser_params_to_string supported an option to print the browser
    persistent state in a friendly format instead of as mdb commands.
    The option was never used, so delete it.

    (Fixes an unreachable bug where that unused code path did not print
    the web_browser_cmd value.)

trace/mercury_trace_browse.c:
trace/mercury_trace_browse.h:
trace/mercury_trace_cmd_misc.c:
    Update the caller.
2017-08-15 17:56:32 +10:00
Peter Wang
dff60fae93 Don't hex encode non-ASCII code points in JavaScript string literals.
term_to_html.m:
    Write non-ASCII code points in their UTF-8 encoding. There is no
    need to write them as hexadecimal escaped UTF-16 code units.
2017-08-15 17:41:59 +10:00
Peter Wang
0d273769fc Add web browser-based term browsing in the debugger.
browser/browse.m:
    Add save_and_browse_browser_term_web to be called when
    "browse --web" is entered at the mdb prompt.

    Add browser_term_to_html_flat_string, a helper predicate for
    term_to_html.

    Make portray_flat_write_browser_term work take a stream parameter
    instead of writing to the current output stream. It is called by
    browser_term_to_html_flat_string, writing to a string builder
    stream.

browser/browser_info.m:
    Add web_browser_cmd field to browser_persistent_state.

browser/mdb.m:
browser/term_to_html.m:
    Add new module to generate an HTML document. The document contains a
    JavaScript represention of a Mercury term.

    (The JavaScript string escaping code is adapted from Julien's
    mercury-json project.)

browser/percent_encoding.m:
    Add new module to perform percent-encoding.

scripts/mdb_term_browser.css:
scripts/mdb_term_browser.js:
    Add JavaScript and CSS files referenced by the generated HTML file
    to create a tree view of a Mercury term using jstree.

scripts/32px.png:
scripts/40px.png:
scripts/throbber.gif:
scripts/jstree.min.js:
scripts/jstree.style.min.css:
    Add local copy of jstree files <https://www.jstree.com/>

scripts/jquery.slim.min.js:
    Add local copy of jquery <https://jquery.com/>

scripts/Mmakefile:
    Install the new files into the same directory as mdbrc and other
    mdb-related files.

trace/mercury_trace_browse.c:
trace/mercury_trace_browse.h:
trace/mercury_trace_cmd_browsing.c:
trace/mercury_trace_cmd_parameter.c:
trace/mercury_trace_cmd_parameter.h:
trace/mercury_trace_internal.c:
    Add "browse --web" and "web_browser_cmd" commands.

doc/user_guide.texi:
    Document "browse --web" and "web_browser_cmd" commands.

configure.ac:
scripts/mdbrc.in:
    Set a reasonable default command to launch a web browser from mdb.
    (Only tested on Linux.)

NEWS:
    Announce the new feature.

.README.in:
    Mention jquery and jstree licensing.

tests/debugger/Mmakefile:
tests/debugger/completion.exp:
tests/debugger/mdb_command_test.inp:
tests/debugger/save.exp2:
    Update debugger tests for new commands.
2017-08-15 16:14:55 +10:00
Zoltan Somogyi
22eefb3c88 Shut up determinism warnings for "sorry" fallback clauses.
Many predicates that do their jobs via foreign_procs in C have a fallback
Mercury clause for non-C backends, which usually throws an exception.
When compiled in non-C grades, these often get a warning that their
determinism declaration could have been tigther, e.g. erroneous instead of det.

*.m:
    Add no_determinism_warnings pragmas before such fallback clauses.

library/dir.m:
    As above, but also remove the unnecessary "dir." prefix on many predicate
    declarations and clause heads.
2017-08-10 18:02:42 +02:00
Zoltan Somogyi
6ea8406ac8 Fix more warnings from --warn-inconsistent-pred-order-clauses.
browser/browse.m:
browser/browser_info.m:
browser/collect_lib.m:
browser/debugger_interface.m:
browser/declarative_analyser.m:
browser/declarative_debugger.m:
browser/declarative_edt.m:
browser/declarative_execution.m:
browser/declarative_oracle.m:
browser/declarative_test.m:
browser/declarative_tree.m:
browser/declarative_user.m:
browser/diff.m:
browser/dl.m:
browser/frame.m:
browser/help.m:
browser/interactive_query.m:
browser/io_action.m:
browser/listing.m:
browser/mdb.m:
browser/mer_browser.m:
browser/name_mangle.m:
browser/term_rep.m:
browser/tree234_cc.m:
    Fix inconsistencies between (a) the order in which functions and predicates
    are declared, and (b) the order in which they are defined.

    In most modules, either the order of the declarations or the order
    of the definitions made sense, and I changed the other to match.
    In some modules, neither made sense, so I changed *both* to an order
    that *does* make sense (i.e. it has related predicates together).

    In some places, put dividers between groups of related
    functions/predicates, to make the groups themselves more visible.

    In some places, fix comments or programming style.

browser/MDB_FLAGS.in:
    Since all the modules in this directory are now free from any warnings
    generated by --warn-inconsistent-pred-order-clauses, specify that option
    by default in this directory to keep it that way.
2017-04-29 14:08:50 +10:00
Zoltan Somogyi
baddfd37cd Make --warn-unused-imports the default for the Mercury system.
browser/MDB_FLAGS.in:
compiler/COMP_FLAGS.in:
deep_profiler/DEEP_FLAGS.in:
library/LIB_FLAGS.in:
mdbcomp/MDBCOMP_FLAGS.in:
mfilterjavac/MFILTERJAVAC_FLAGS.in:
profiler/PROF_FLAGS.in:
slice/SLICE_FLAGS.in:
ssdb/SSDB_FLAGS.in:
    Add --warn-unused-imports to the list of default compiler flags
    for each directory.

compiler/ml_tailcall.m:
library/io.m:
    Delete some unused imports.
2017-01-19 10:48:04 +11:00
Peter Wang
13bd996453 Only pass -install_name option on Darwin.
The -install_name option broke building with mmake --use-mmake-make on
other operating systems.

browser/Mmakefile:
library/Mmakefile:
mdbcomp/Mmakefile:
ssdb/Mmakefile:
    As above.
2016-09-29 12:23:22 +10:00
Zoltan Somogyi
0d13ab5e18 Improve the interface of pretty_printer.m.
library/pretty_printer.m:
    Make the changes indicated by the NOTE_TO_IMPLEMENTORS notes
    in my previous change.

NEWS:
    Announce the changes.

browser/browse.m:
tests/hard_coded/test_pretty_printer.m:
    Conform to the above change.
2016-08-09 02:42:00 +02:00
Zoltan Somogyi
1da267e9f0 Fix a bug in handling instances with --warn-unused-imports.
This fixes Mantis bug #412.

compiler/unused_imports.m:
    Consider that an instance declaration makes a module "used" only if
    it occurs in the module being compiled, not in an imported or ancestor
    module. (Mantis bug 412 was caused by instance declarations in implicitly
    imported modules.)

    Fixing #412 also exposed another bug. When computing the set of modules
    used by predicates, we considered (besides some non-type entities)
    only the types of the predicate's arguments, not the types of non-argument
    variables. In one case in the compiler (mmc_analysis.m), this lead to
    some actually-used modules not being marked as such, which lead to
    false unused-import warnings to be generated for them. Fix this by scanning
    the types of all variables in all of a predicate's procedures, not just
    the arguments.

    Improve the infrastructure for debugging similar problems.

    Note some possibilities for future improvement.

    Change a predicate name to fit the naming scheme.

compiler/analysis.m:
    Add an XXX about a possible improvement.

compiler/hlds_out_module.m:
    Make the output we generate for instance methods more readable.
    As part of this, fix an old bug in the printing of the instance table:
    the first line of the first method of each concrete instance declaration
    was accidentally commented out.

compiler/parse_tree_out.m:
    Export a different utility predicate for hlds_out_module.m. Make its name
    conform to the scheme used by related predicates.

browser/browse.m:
compiler/add_mutable_aux_preds.m:
compiler/add_pred.m:
compiler/add_special_pred.m:
compiler/check_for_missing_type_defns.m:
compiler/check_promise.m:
compiler/exception_analysis.m:
compiler/handle_options.m:
compiler/inst_match.m:
compiler/mercury_to_mercury.m:
compiler/ml_tailcall.m:
compiler/module_qual.m:
compiler/op_mode.m:
compiler/parse_inst_mode_defn.m:
compiler/parse_tree_out_clause.m:
compiler/parse_tree_out_info.m:
compiler/parse_tree_out_inst.m:
compiler/parse_tree_out_pragma.m:
compiler/parse_tree_out_pred_decl.m:
compiler/parse_tree_out_term.m:
compiler/parse_type_defn.m:
compiler/parse_type_name.m:
compiler/parse_util.m:
compiler/parse_vars.m:
compiler/prog_ctgc.m:
compiler/recompilation.usage.m:
compiler/resolve_unify_functor.m:
compiler/term_constr_main.m:
compiler/term_constr_main_types.m:
compiler/write_deps_file.m:
library/bt_array.m:
    Delete unused imports.

compiler/module_qual.qual_errors.m:
    Import a module that the parent module_qual.m doesn't import anymore.

tests/warnings/bug412.{m,exp}:
    The test case for this bug.

tests/warnings/Mmakefile:
tests/warnings/Mercury.options:
    Enable the new test case.

tests/invalid/import_in_parent.err_exp:
    Update the expected output for this test case. The parent module
    does not use the imported module (bool) at all, so this is what the
    error message says after this diff, though its submodule does use bool.
2016-07-17 10:20:29 +02:00
Paul Bone
39da4409ec Add .dep_err files to .gitignore
browser/.gitignore:
compiler/.gitignore:
deep_profiler/.gitignore:
library/.gitignore:
mdbcomp/.gitignore:
mfilterjavac/.gitignore:
profiler/.gitignore:
slice/.gitignore:
ssdb/.gitignore:
    As above.
2016-05-25 15:42:53 +10:00
Zoltan Somogyi
056d2213af Avoid using some Mercury keywords.
browser/browser_info.m:
    Avoid using "output" (and "input", for the sake of symmetry)
    as function symbols.

browser/debugger_interface.m:
    Avoid using "pred" and "func" as function symbols by putting a prefix
    before each function symbol in the affected type.

browser/dl.m:
    Avoid using "local" (and "global", again for symbols) as function symbols.

profiler/output_prof_info.m:
    Avoid using "output" as a type name and as a function symbol.

browser/browse.m:
browser/collect_lib.m:
browser/declarative_user.m:
browser/interactive_query.m:
profiler/generate_output.m:
profiler/output.m:
    Conform to the changes above.

extras/morphine/source/browse.op:
extras/morphine/source/collect.op:
extras/morphine/source/current_arg.op:
extras/morphine/source/current_slots.op:
extras/morphine/source/exec_control.op:
extras/morphine/source/forward_move.op:
extras/morphine/source/interactive_queries.op:
    Conform to the renames of the function symbols in debugger_interface.m.

    Since this code is in Prolog, I cannot be sure that I changed all the
    places that should be changed, but that does not matter much.

    Since Morphine was designed to work with the Prolog dialects of 1999,
    had its last update in 2002, and we never test it, it is very likely
    that it hasn't worked in a long time. We keep it around because
    (a) it may interest someone, and (b) it doesn't require significant
    maintenance. The fact that it does not run may be regrettable, but
    it is not actually regretted by many would-be users, or (even) any at all.

    (I actually noticed and fixed a bug while doing the above change:
    it was a typo in a function symbol name.)
2016-05-13 09:07:58 +10:00
Julien Fischer
e7010327d9 Delete references to picreg.
browser/interactive_query.m:
extras/dynamic_linking/Mmakefile:
extras/graphics/mercury_glut/Mmakefile:
extras/graphics/mercury_glut/Mmakefile.MacOSX:
extras/graphics/samples/calc/Makefile:
extras/graphics/samples/gears/Mmakefile:
extras/graphics/samples/maze/Mmakefile:
extras/graphics/samples/pent/Mmakefile:
extras/morphine/non-regression-tests/Mmakefile:
extras/morphine/source/collect.op:
    As above.
2016-04-26 14:03:04 +10:00
Zoltan Somogyi
be553f9b16 Turn off lcmc for modules that it doesn't help. 2016-04-26 12:51:56 +10:00
Paul Bone
652d89cf38 Add take_while and drop_while to the list module
Add new predicates and functions take_while and drop_while to the list
module.

Deprecate takewhile/4, replacing it with take_while/4.

library/list.m:
    As above.

NEWS:
    Announce this change.

browser/parse.m:
compiler/compute_grade.m:
compiler/deforest.m:
compiler/mercury_compile_main.m:
compiler/ml_optimize.m:
compiler/mode_robdd.equiv_vars.m:
compiler/options_file.m:
compiler/structure_reuse.direct.choose_reuse.m:
compiler/structure_reuse.domain.m:
compiler/structure_sharing.domain.m:
compiler/term_constr_data.m:
compiler/write_deps_file.m:
compiler/xml_documentation.m:
deep_profiler/read_profile.m:
deep_profiler/top_procs.m:
library/list.m:
    Conform to above changes.
2016-04-22 21:27:03 +10:00
Mark Brown
8e0eb72c15 Various improvements to mdb's interactive query mechanism.
Estimated hours taken: 26

Implement the following improvements:
  - Pass mdb variable bindings to the interactive query processor,
    allowing queries to make use of live values.
  - Catch exceptions thrown by queries, rather than crashing mdb.
  - Write outputs using io.write_cc/3.
  - Don't output underscore variables, avoiding spurious warnings.
  - More protection of the user's namespace.
  - Updated the cleanup code.

browser/interactive_query.m:
    The interface now accepts corresponding lists of names and values,
    which are matched up with variables occurring in the queries.

    Replace the code generator with one that supports passing data
    to and from the query, and catching exceptions from the query.
    Pass the appropriate data at the time the query predicate is called.
    Distinguish between failure of the query and failure of the dynamic
    casts used to instantiate the query inputs.

    Use module qualifiers to avoid clashing with user imports. (Should the
    generated code use use_module, just in case?)

    Perform I/O, failure handling and exception handling in the caller
    instead of in the generated code. This is faster, more maintainable,
    and means that errors are caught earlier.

    Place source_file and line directives more carefully so as to ensure
    more consistent error messages, and to help distinguish errors in the
    template from errors in the query.

    Factor out the query command parser to avoid double maintenance.

browser/debugger_interface.m:
    Conform to above changes.

trace/mercury_trace_vars.[ch]:
    Export MR_trace_return_bindings, which constructs Mercury lists
    of the variable names and values in the current environment.

trace/mercury_trace_browse.c:
    Pass bindings from trace/mercury_trace_vars through to the interactive
    query processor.

tests/debugger/interactive.{m,inp,exp}:
    Update for changes to existing functionality. Additionally test the
    new functionality.

doc/user_guide.texi:
    Document the new behaviour.

NEWS:
    Announce the new behaviour.
2016-02-07 04:09:04 +11:00
Julien Fischer
1b17ed4d6c Fix a problem on OS X when building using --use-mmc-make.
The install names for Mercury shared libraries in the system were not being set
when building using --use-mmc-make.  The existing code in the Mmakefiles that
does this only works for mmake, not mmc --make.

browser/Mmakefile:
library/Mmakefile:
mdbcomp/Mmakefile:
ssdb/Mmakefile:
    When using --use-mmc-make set up the options to set the dylib install
    names in such a way that mmc --make can see them.

    Don't hardcode the library names in the definitions that set the
    library install names.
2016-01-08 23:58:25 +11:00
Julien Fischer
fa36892439 Fix a compilation error.
browser/browse.m:
    Rename the version of the I/O state used inside a trace goal
    in order to avoid a warning about it shadowing the version in
    the enclosing scope.
2016-01-01 20:31:11 +11:00
Zoltan Somogyi
9a55512345 Delete some unused predicates. 2015-12-31 23:29:58 +11:00
Zoltan Somogyi
f2a2271bfb Put some debugging code in a trace scope. 2015-12-31 23:29:07 +11:00
Zoltan Somogyi
5890311825 Fix some unused predicate warnings.
browser/browse.m:
browser/declarative_edt.m:
compiler/continuation_info.m:
compiler/hlds_out_goal.m:
compiler/llds_out_file.m:
compiler/make.dependencies.m:
compiler/ml_closure_gen.m:
compiler/ml_elim_nested.m:
compiler/options_file.m:
compiler/prog_io_pragma.m:
deep_profiler/html_format.m:
    Delete some dead predicates that won't be needed anymore.

compiler/hlds_goal.m:
compiler/jumpopt.m:
    Comment out some dead predicates that may be needed later.

compiler/matching.m:
compiler/typecheck.m:
compiler/write_deps_file.m:
compiler/write_module_interface_files.m:
    Convert some dead predicates into live predicates by adding calls to them
    at their intended call sites. In some cases the missing call was a sort-of
    bug (the code worked, but not as well as it should have). In others, the
    call was intended only for debugging, and the new call is in a trace scope
    that is disabled by default.

compiler/ml_foreign_proc_gen.m:
    Add an XXX comment about a dead procedure.
2015-12-06 09:49:53 +11:00
Julien Fischer
5dd80b230d Delete or deprecate obsolete builtin insts, modes and predicates.
Update the list of changes in the NEWS file  that potentially break backwards
compatibility.

library/builtin.m:
    Delete the builtin inst synonyms 'old' and 'new'.

    Delete the builtin builtin modes 'oo' and 'no'.

    Add a comment stating that the modes input/0 and output/0 are deprecated.

    Add obsolete pragmas for promise_only_solution/1 and
    promise_only_solution_io/4.

    Shift the description of the 'any' inst into the comment describing
    the other builtin insts.   Add the higher-order 'any' insts to this
    comment.

    Fix a typo in the description of the builtin higher-order insts: the
    determinism is not required to be det.

browser/term_rep.m:
    Replace calls to promise_only_solutions/1 with promise_equivalent_solutions
    goals.

mdbcomp/trace_counts.m:
    Replace a call to promise_only_solution_io/4 with a
    promise_equivalent_solutions goal.

    Add an XXX comment about hardcoding executable names.

NEWS:
     Announce the deletion of 'old', 'new', '

     List the addition of the 'for' operator as a change that may break
     backwards compatibility.

     Announce that the compiler no longer allows builtin types, insts and
     modes to be redefined.
2015-12-03 13:39:50 +11:00
Julien Fischer
94535ec121 Fix spelling and formatting throughout the system.
configure.ac:
browser/*.m:
compiler/*.m:
deep_profiler/*.m:
library/*.m:
ssdb/*.m:
runtime/mercury_conf.h.in:
runtime/*.[ch]:
scripts/Mmake.vars.in:
trace/*.[ch]:
util/*.c:
	Fix spelling and doubled-up words.

	Delete trailing whitespace.

	Convert tabs into spaces (where appropriate).
2015-12-02 18:46:14 +11:00
Zoltan Somogyi
cc9912faa8 Don't import anything in packages.
Packages are modules whose only job is to serve as a container for submodules.
Modules like top_level.m, hlds.m, parse_tree.m and ll_backend.m are packages
in this (informal) sense.

Besides the include_module declarations for their submodules, most of the
packages in the compiler used to import some modules, mostly other packages
whose component modules their submodules may need. For example, ll_backend.m
used to import parse_tree.m. This meant that modules in the ll_backend package
did not have to import parse_tree.m before importing modules in the parse_tree
package.

However, this had a price. When we add a new module to the parse_tree package,
parse_tree.int would change, and this would require the recompilation of ALL
the modules in the ll_backend package, even the ones that did NOT import ANY
of the modules in the parse_tree package.

This happened even at one remove. Pretty much all modules in every one
of the backend have to import one or more modules in the hlds package,
and they therefore have import hlds.m. Since hlds.m imported transform_hlds.m,
any addition of a new middle pass to the transform_hlds package required
the recompilation of all backend modules, even in the usual case of the two
having nothing to do with each other.

This diff removes all import_module declarations from the packages,
and replaces them with import_module declarations in the modules that need
them. This includes only a SUBSET of their child modules and of the non-child
modules that import them.
2015-11-13 15:03:20 +11:00
Zoltan Somogyi
0821b301f2 Require that types/insts/modes in interfaces be defined in the interface.
compiler/module_qual.m:
    The interface of a module A contains items (e.g. predicate declarations)
    that refer to entities such as types, insts, modes etc. They may refer
    to those entities if (a) they are defined in the interface of module A,
    (b) in a parent module of module A, or (c) if they are imported from
    another module, module B, which is imported into module A in the interface
    of module A.

    The old algorithm that attempted to enforce this requirement had a basic
    design fault: it based the decision as to whether the use of an entity
    in the interface was legal solely on the name of the module that defined
    that entity. This correctly implements tests (b) and (c), but it does
    not even attempt to implement the interface test part of (a).
    It therefore allowed exported items to refer to nonexported entities.

    This diff changes the whole design approach to the test. Instead of
    keeping a list of modules *all* of whose entities may be used in the
    interface of the current module, record for *every* entity whether
    it may be used in the interface. Set the permissions differently
    in the interface and implementation sections of the current module.

    Improve the formatting of the ambiguity error message.

NEWS:
    Announce the stricter enforcement of the documented language rules,
    in a new section for potentially compatibility-breaking changes.

compiler/check_typeclass.m:
    Delete a test for a special case of the situation that module_qual.m
    now tests for. If this problem occurs, module_qual.m will pick it up,
    and check_typeclass.m will never even be invoked, so this copy of the test
    can never succeed.

library/hash_table.m:
    Fix code that violated the language rules: we export a type that
    includes another type, but didn't export the second type. We now do.

browser/declarative_analyser.m:
browser/declarative_edt.m:
compiler/coverage_profiling.m:
    Fix code that violated the language rules. We used to export predicates
    and functions whose argument types included nonexported types. As it
    happens, none of those predicates and functions actually need to be
    exported, so keep them private.

    In coverage_profiling.m, don't abstract export a type that is not
    used outside the module, and give a function a name that doesn't
    clash with a type name.

tests/invalid/bug17.{m,err_exp}:
    A new test case to test the error message we get if the module interface
    refers to a nonexported type.

tests/invalid/bad_instance.err_exp:
    This test case used to get two kinds of errors, one of which was
    the illegal use of nonexported type in an exported abstract instance
    declaration. We now discover this error earlier, and stop after we
    do so. Update the expected error message.

tests/invalid/bad_instance2.{m,err_exp}:
    New test case: a modified copy of bad_instance.m, testing the other
    kind of error originally tested by bad_instance.m.

tests/invalid/instance_no_type.err_exp:
    Update the expected error message.

tests/invalid/Mmakefile:
    Enable the new test cases.

tests/benchmarks/query.m:
tests/hard_coded/unused_float_box_test.m:
tests/valid/bug300.m:
tests/valid/deforest_bug.m:
tests/valid/higher_order4.m:
tests/valid/lambda_recompute.m:
tests/valid/mert.m:
tests/valid/reuse_static.m:
tests/valid/switch_detection_bug2.m:
tests/valid/time_yaowl.m:
tests/warnings/unused_args_test.m:
    Fix code that violated the language rules, typically by exporting
    the type that previously, we illegally used in the module interface.

tests/recompilation/add_type_re.err_exp.2:
    Expect the updated ambiguity error message.
2015-11-11 14:28:57 +11:00
Zoltan Somogyi
5f8bd5f09d Delete unused imports. 2015-11-08 14:52:08 +11:00
Zoltan Somogyi
8f581354c7 Add a prefix to the names of browser_info's fields. 2015-11-02 18:37:49 +11:00
Zoltan Somogyi
981816771a Use separate types for directories with and without ".." steps.
browser/browser_info.m:
    Replace the old "dir" type and "dir_no_parent" inst with
    two distinct types: up_down_dir and down_dir.

browser/browse.m:
browser/declarative_user.m:
browser/parse.m:
    Replace uses of the old dir type with one of the new types,
    adding conversions as needed. The separate types make it much clearer
    where ".." dir steps may appear and where they may not.

    In one case, this extra clarity allows us to avoid calling simplify_dirs
    (which eliminates ".." dir steps) twice in a row.

    In some other cases, it allows us to replace three-way switches
    in which the .. case contained a "this can't happen" assertions
    with a two-way switch (between numbered and named child directories).
    This should be faster as well as safer. We now allow ".." dir steps
    only when the user types in directory paths, and we convert them to
    downward-only directory paths immediately afterward.

    Simplify the code that writes out directory paths.
2015-11-02 18:28:18 +11:00
Zoltan Somogyi
3c255eeac7 Don't allow putting functions with nondefault signatures into terms.
The code that takes the function out of the term can use the function
as if it had the default signature. If it doesn't, this can lead to
This fixes Mantis bug 264.

compiler/mode_errors.m:
    Provide a way to record such errors, and to print error messages for them.

compiler/modecheck_unify.m:
    Look for such errors when constructing terms.

browser/declarative_user.m:
    Don't put a function with a nondefault signature (it used a subtype)
    into a term. Enforce the subtype with a runtime assertion instead.

doc/reference_manual.texi:
    Document the new limitation.

tests/invalid/default_ho_inst.{m,err_exp}:
    The test case for Mantis bug 264.

tests/invalid/Mmakefile:
    Enable the new test case.

tests/valid/Mmakefile:
    Disable the old ho_func_call test case, since it RELIES on putting
    functions with nondefault modes into terms. It also uses I/O states
    in ui modes.
2015-11-02 13:09:37 +11:00
Zoltan Somogyi
2f6d49a1fc Delete more stuff needed only for the IL backend. 2015-09-23 11:13:00 +10:00
Julien Fischer
3dd02876a5 Delete the MLDS->IL backend.
compiler/mlds_to_il.m:
compiler/mlds_to_ilasm.m:
compiler/mlds_to_managed.m:
compiler/il_peephole.m:
compiler/ilasm.m:
compiler/ilds.m:
    Delete the modules making up the MLDS->IL code generator.

compiler/globals.m:
compiler/prog_data.m:
    Delete IL as a target and foreign language.

compiler/prog_io_pragma.m:
    Delete the max_stack_size/1 foreign proc attribute.  This was only
    ever required by the IL backend.

compiler/options.m
    Delete options used for the IL backend.

compiler/write_deps_file.m:
    Don't generate mmake targets for .il files etc.

compiler/*.m:
    Conform to the above changes.

compiler/notes/compiler_design.html
compiler/notes/work_in_progress.html
    Conform to the above changes.

library/*.m:
    Delete IL foreign_proc and foreign_export pragmas.

README.DotNet:
    Delete this file.

browser/Mmakefile:
compiler/Mmakefile:
deep_profiler/Mmakefile:
mdbcomp/Mmakefile:
mfilterjavac/Mmakefile:
profiler/Mmakefile:
runtime/Mmakefile:
slice/Mmakefile:
    Conform the above changes.

configure.ac:
    Don't check that IL is a supported foreign language when performing the
    up-to-date check.

    Delete the '--enable-dotnet-grades' option.

scripts/Mmake.vars.in:
    Delete variables used for the IL backend (and in on case by the Aditi
    backend).

scripts/Mercury.config.bootstrap.in:
scripts/Mercury.config.in:
scripts/Mmake.rules:
scripts/canonical_grade.sh-subr:
tools/bootcheck:
    Delete stuff related to the 'il' and 'ilc' grades.

doc/reference_manual.texi:
     Delete the documentation of the 'max_stack_size' option.

doc/user_guide.texi:
     Delete stuff related to the IL backend.

tests/hard_coded/csharp_test.{m,exp}:
tests/invalid/foreign_type_missing.{m,err_exp}:
tests/valid/csharp_hello.m:
	Delete these tests: they are no longer relevant.

tests/hard_coded/equality_pred_which_requires_boxing.m:
tests/hard_coded/foreign_import_module.m:
tests/hard_coded/foreign_import_module_2.m:
tests/hard_coded/foreign_type.m:
tests/hard_coded/foreign_type2.m:
tests/hard_coded/foreign_type3.m:
tests/hard_coded/intermod_foreign_type2.m:
tests/hard_coded/lp.m:
tests/hard_coded/user_compare.m:
tests/invalid/foreign_type_2.m:
tests/invalid/foreign_type_missing.{m,err_exp}:
tests/invalid/foreign_type_visibility.m:
tests/invalid/illtyped_compare.{m,err_exp}:
tests/submodules/external_unification_pred.m
tests/valid/big_foreign_type.m
tests/valid/solver_type_bug.m
tests/valid_seq/foreign_type_spec.m
tests/valid_seq/intermod_impure2.m
    Delete IL foreign_procs where necessary.

tests/hard_coded/Mmakefile
tests/invalid/Mercury.options
tests/invalid/Mmakefile
tests/submodules/Mmakefile
tests/valid/Mercury.options
tests/valid/Mmake.valid.common
tests/valid/Mmakefile
tests/valid_seq/Mmakefile
tests/valid_seq/Mercury.options
    Conform to the above changes.
2015-09-21 11:34:46 +10:00
Zoltan Somogyi
faffe6c42c Add terminates pragmas for two predicates. 2015-09-14 04:35:10 +10:00
Julien Fischer
568d0d5f51 Fix another problem with mdb interactive queries on OS X.
browser/name_mangle.m:
    Fix a problem that was preventing interactive queries (and dynamic
    linking) from working in asm_fast grades on OS X.  On OS X, the dlsym
    function will add the underscore prefix to the symbol name for us,
    so this module does not need to add to it to asm labels itself.

NEWS:
    Announce that interactive queries now work on OS X.
2015-09-02 20:25:18 +10:00
Zoltan Somogyi
62ec97d443 Report imports shadowed by other imports.
If a module has two or more import_module or use_module declarations
for the same module, (typically, but not always, one being in its interface
and one in its implementation), generate an informational message about
each redundant declaration if --warn-unused-imports is enabled.

compiler/hlds_module.m:
    We used to record the set of imported/used modules, and the set of
    modules imported/used in the interface of the current module. However,
    these sets

    - did not record the distinction between imports and uses;
    - did not allow distinction between single and multiple imports/uses;
    - did not record the locations of the imports/uses.

    The first distinction was needed only by module_qual.m, which *did*
    pay attention to it; the other two were not needed at all.

    To generate messages for imports/uses shadowing other imports/uses,
    we need all three, so change the data structure storing such information
    for *direct* imports to one that records all three of the above kinds
    of information. (For imports made by read-in interface and optimization
    files, the old set of modules approach is fine, and this diff leaves
    the set of thus *indirectly* imported module names alone.)

compiler/unused_imports.m:
    Use the extra information now available to generate a
    severity_informational message about any import or use that is made
    redundant by an earlier, more general import or use.

    Fix two bugs in the code that generated warnings for just plain unused
    modules.

    (1) It did not consider that a use of the builtin type char justified
    an import of char.m, but without that import, the type is not visible.

    (2) It scanned cons_ids in goals in procedure bodies, but did not scan
    cons_ids that have been put into the const_struct_db. (I did not update
    the code here when I added the const_struct_db.)

    Also, add a (hopefully temporary) workaround for a bug in
    make_hlds_passes.m, which is noted below.

    However, there are at least three problems that prevent us from enabling
    --warn-unused-imports by default.

    (1) In some places, the import of a module is used only by clauses for
    a predicate that also has foreign procs. When compiled in a grade that
    selects one of those foreign_procs as the implementation of the predicate,
    the clauses are discarded *without* being added to the HLDS at all.
    This leads unused_imports.m to generate an uncalled-for warning in such
    cases. To fix this, we would need to preserve the Mercury clauses for
    *all* predicates, even those with foreign procs, and do all the semantic
    checks on them before throwing them away. (I tried to do this once, and
    failed, but the task should be easier after the item list change.)

    (2) We have two pieces of code to generate import warnings. The one in
    unused_imports.m operates on the HLDS after type and mode checking,
    while module_qual.m operates on the parse tree before the creation of
    the HLDS. The former is more powerful, since it knows e.g. what types and
    modes are used in the bodies of predicates, and hence can generate warnings
    about an import being unused *anywhere* in a module, as opposed to just
    unused in its interface.

    If --warn-unused-imports is enabled, we will get two separate set of
    reports about an interface import being unused in the interface,
    *unless* we get a type or mode error, in which case unused_imports.m
    won't be invoked. But in case we do get such errors, we don't want to
    throw away the warnings from module_qual.m. We could store them and
    throw them away only after we know we won't need them, or just get
    the two modules to generate identical error_specs for each warning,
    so that the sort_and_remove_dups of the error specs will do the
    throwing away for us for free, if we get that far.

    (3) The valid/bug100.m test case was added as a regression test for a bug
    that was fixed in module_qual.m. However the bug is still present in
    unused_imports.m.

compiler/make_hlds_passes.m:
    Give hlds_module.m the extra information it now needs for each item_avail.

    Add an XXX for a bug that cannot be fixed right now: the setting of
    the status of abstract instances to abstract_imported. (The "abstract"
    part is correct; the "imported" part may not be.)

compiler/intermod.m:
compiler/try_expand.m:
compiler/xml_documentation.m:
    Conform to the change in hlds_module.m.

compiler/module_qual.m:
    Update the documentation of the relationship of this module
    with unused_imports.m.

compiler/hlds_data.m:
    Document a problem with the status of instance definitions.

compiler/hlds_out_module.m:
    Update the code that prints out the module_info to conform to the change
    to hlds_module.m.

    Print status information about instances, which was needed to diagnose
    one of the bugs in unused_imports.m. Format the output for instances
    nicer.

compiler/prog_item.m:
    Add a convenience predicate.

compiler/prog_data.m:
    Remove a type synonym that makes things harder to understand, not easier.

compiler/modules.m:
    Delete an XXX that asks for the feature this diff implements.
    Add another XXX about how that feature could be improved.

compiler/Mercury.options.m:
    Add some more modules to the list of modules on which the compiler
    should be invoked with --no-warn-unused-imports.

compiler/*.m:
library/*.m:
mdbcomp/*.m:
browser/*.m:
deep_profiler/*.m:
mfilterjavac/*.m:
    Delete unneeded imports. Many of these shadow other imports, and some
    are just plain unneeded, as shown by --warn-unused-imports. In a few
    modules, there were a *lot* of unneeded imports, but most had just
    one or two.

    In a few cases, removing an import from a module, because it *itself*
    does not need it, required adding that same import to those of its
    submodules which *do* need it.

    In a few cases, conform to other changes above.

tests/invalid/Mercury.options:
    Test the generation of messages about import shadowing on the existing
    import_in_parent.m test case (although it was also tested very thoroughly
    when giving me the information needed for the deletion of all the
    unneeded imports above).

tests/*/*.{m,*exp}:
    Delete unneeded imports, and update any expected error messages
    to expect the now-smaller line numbers.
2015-08-25 00:38:49 +10:00
Julien Fischer
a26f5169bd Delete dice.m from the browser directory.
browser/dice.m:
     Delete this file; it hasn't been used since 2005 and was only still
     around in case we wished to use the file again when we were using CVS.

browser/Mercury.options:
     Delete MCFLAGS specific to the above file.
2015-08-22 22:39:57 +10:00
Julien Fischer
3d848cfc50 Documentation fixes.
browser/*.m:
deep_profiler/*.m:
profiler/*.m:
library/backjump.m:
library/injection.m:
library/stm_builtin.m:
library/thread.barrier.m:
     Fix spelling errors.

     Replace tabs with spaces in a couple of spots.

     Delete trailing whitespace.
2015-08-22 22:30:36 +10:00
Julien Fischer
4bbc1e48eb Make mdb interactive queries work on OS X.
browser/interactive_query.m:
    Use '.dylib' as the extension for the shared library we generate for
    interactive queries when on OS X.  (While '.so' would work in principle,
    its use is unusual on OS X and the Mercury compiler will always use
    '.dylib' anyway.)

    Replace some sequences of I/O operations with single calls to io.format
    so that message components are not spread over multiple lines.

    Add an XXX comment about object file extensions.

    Update comments that refer to 'libquery' rather than 'libmdb_query'.

README.MacOS:
    Delete interactive queries from the list of unsupported features.

tests/debugger/interactive.exp:
    Update this expected output.  The changes are due to earlier
    changes to the formatting and presentation of error messages.
2015-08-21 22:15:30 +10:00
Julien Fischer
b3a819e1f5 Fix problems with the dynamic linking support in extras.
Fix a mismatch in the mangling of symbol names between the name mangling
module in the browser / dynamic linking library and the MLDS->C code generator.
The former includes the function return argument in the arity, while the latter
does not.

Make the dynamic linking examples work in low-level C grades on OS X and mostly
work in high-level C grades.  (I say "mostly", since the integer function test
returns an incorrect result on my machine.)

browser/name_mangle.m:
      The arity for symbols corresponding to Mercury functions should not
      include the return argument.

      Add a comment mentioning that this module needs to be kept in sync
      with the name mangling scheme used in compiler/mlds_to_c.m.

      s/XXX/NOTE/ in a spot.

compiler/mlds_to_c.m:
      Add a comment mentioning that the name mangling code here needs to be
      kept in sync with the mlds version of the name mangling code
      in browser/name_mangle.m.

extras/dynamic_linking/Mmakefile:
      Use the variable EXT_FOR_SHARED_LIBS rather than assuming that the
      shared library extension is .so.

extras/dynamic_linking/dl_test.m:
extras/dynamic_linking/dl_test2.m:
	Open 'libhello.dylib' on OS X systems rather than 'libhello.so'.
2015-08-21 21:13:26 +10:00
Zoltan Somogyi
ef6761f508 Bring the programming style of browser/*.m up-to-date. 2015-08-19 01:27:55 +10:00
Zoltan Somogyi
5efc277801 Improve list.m.
library/list.m:
    Switch to a more expressive and more consistent set of variable names.

    Give many _2 helper predicates better names.

    Convert (C->T;E) to (if C then T else E).

    Note that nth_member_search is identical to index1_of_first_occurrence,
    and nth_member_lookup is identical to det_index1_of_first_occurrence.
    Make the former redirect to the latter.

browser/declarative_tree.m:
browser/term_rep.m:
compiler/dep_par_conj.m:
compiler/global_data.m:
compiler/polymorphism.m:
compiler/prog_foreign.m:
compiler/pseudo_type_info.m:
compiler/tupling.m:
compiler/type_ctor_info.m:
    Replace calls to nth_member_{search,lookup} with
    {det_,}index1_of_first_occurrence.
2015-08-18 14:42:42 +10:00
Zoltan Somogyi
fdd141bf77 Clean up the tests in the other test directories.
tests/invalid/*.{m,err_exp}:
tests/misc_tests/*.m:
tests/mmc_make/*.m:
tests/par_conj/*.m:
tests/purity/*.m:
tests/stm/*.m:
tests/string_format/*.m:
tests/structure_reuse/*.m:
tests/submodules/*.m:
tests/tabling/*.m:
tests/term/*.m:
tests/trailing/*.m:
tests/typeclasses/*.m:
tests/valid/*.m:
tests/warnings/*.{m,exp}:
    Make these tests use four-space indentation, and ensure that
    each module is imported on its own line. (I intend to use the latter
    to figure out which subdirectories' tests can be executed in parallel.)

    These changes usually move code to different lines. For the tests
    that check compiler error messages, expect the new line numbers.

browser/cterm.m:
browser/tree234_cc.m:
    Import only one module per line.

tests/hard_coded/boyer.m:
    Fix something I missed.
2015-02-16 12:32:18 +11:00
Zoltan Somogyi
b2fa7623c8 Add missing newline to end an error message. 2015-02-13 14:01:19 +11:00