Discussion of these changes can be found on the Mercury developers
mailing list archives from June 2018.
COPYING.LIB:
Add a special linking exception to the LGPL.
*:
Update references to COPYING.LIB.
Clean up some minor errors that have accumulated in copyright
messages.
runtime/*.[ch]:
trace/*.[chyl]:
As above. In some places, improve comments, e.g. by expanding contractions
such as "we've". Add #ifndef guards against double inclusion around
the trace/*.h files that did not already have them.
tools/*:
Make the corresponding changes in shell scripts that generate .[ch] files
in the runtime.
tests/*:
Conform to a slight change in the text of a message.
Estimated hours taken: 5
Branches: main
Add a new mdb command, 'shell', that allows users to execute shell commands
from within the debugger.
Allow the user to give up to nine additional arguments to the 'source' command.
Occurrences of the strings "$1" through "$9" in the sourced file are replaced
by the corresponding additional arguments, allowing for parameterised scripts.
Use the two new features mentioned above to add two more mdb commands: one
to open a term, goal or exception in an external editor another command
to perform a grep on a term, goal or exception (useful for seeing if a value
occurs in a big map, for example).
NEWS
Mention the new commands.
doc/mdb_categories:
doc/user_guide.texi:
Document the new commands.
scripts/Mmakefile:
scripts/mdb_open:
scripts/mdb_vim:
Add scripts for the new commands.
scripts/mdbrc.in:
Add aliases for the new shell, emacs, grep and vim commands.
tests/debugger/completion.exp:
tests/debugger/mdb_command_test.inp:
Adjust for new commands.
tests/debugger/save.exp:
tests/debugger/save.exp2:
Adjust for new commands. Replace system dependent strings
with ZZZ instead of XXX.
tests/debugger/Mmakefile:
tests/debugger/shell.exp:
tests/debugger/shell.inp:
tests/debugger/shell.m:
tests/debugger/shell_test_script:
Test the shell and source commands.
trace/mercury_trace_cmd_misc.c:
Check if there are extra arguments to the source mdb command
and pass them to MR_trace_source if there are.
trace/mercury_trace_cmd_misc.h:
Add shell command handling function prototype.
trace/mercury_trace_declarative.c:
Call MR_trace_call_system_display_error_on_failure instead
of system when displaying benchmarking statistics for the
declarative debugger.
trace/mercury_trace_internal.c:
trace/mercury_trace_internal.h:
Implement the shell command and extend the source command
to handle the optional extra arguments.
trace/mercury_trace_readline.c:
trace/mercury_trace_readline.h:
Add a new function to read a line and replace all the
occurrences of "$[1-9]" with the corresponding value from an array.
Delete comments in the .c file that are duplicated in the .h file.
trace/mercury_trace_util.c:
trace/mercury_trace_util.h:
Implement MR_trace_call_system_display_error_on_failure that
executes a system call and displays an error message if the system
call terminates abnormally.
Estimated hours taken: 16
Branches: main, release
Replace the "set" command of mdb with a bunch of commands: the `format',
`format_param', `list_context_lines', `list_path', `xml_browser_cmd',
`xml_tmp_filename', `fail_trace_counts', `pass_trace_counts' and
`max_io_actions' commands. Each of these set just one parameter
or one of set of closely related parameters.
Move all these commands, and some existing commands that set parameters
that were elsewhere, to the "parameter" command category.
Extend some of these commands so that if given no arguments, they report
the current values of the parameters they would otherwise set.
Replace the "set" commands of the mdb browser and of the declarative debugger
with a bunch of commands: "format", "depth", "size", "width", "lines",
"actions" and "params" (the last prints the current value of the parameters).
For each category of mdb commands, create files mercury_trace_cmd_<cat>.[ch],
and move the functions dealing with that category of commands there from
mercury_trace_internal.c. Give each of these new files a logical structure
that was sometimes missing from the relevant parts of mercury_trace_internal.c.
NEWS:
Mention these changes.
doc/mdb_categories:
Document these changes.
doc/user_guide.texi:
Document these changes.
Fix an old documentation bug: you couldn't set listing paramaters
from a declarative debugger command.
Fix an old documentation bug: the description of the goal_path step
for scopes was obsolete.
Fix some obsolete references to : as module qualifier.
browser/parse.m:
Update the browser command set along the lines at the top.
browser/declarative_user.m:
Update the declarative debugger command set along the lines at the top.
Move the declaration for the type representing declarative debugger
commands to near the top of the file.
browser/browser_info.m:
Provide some access predicates.
Update the predicate that generates mdb commands to save the persistent
state of the debugger to generate the new forms of parameter commands.
Move types and predicates for dealing with browser parameters from
browse.m to here, so that declarative_user.m can use them too.
browser/browse.m:
Delete the code moved to browser_info.m, and conform to the other
changes in the other modules.
browser/listing.m:
Provide a predicate to return the type of listing paths.
scripts/mdbrc.in:
Update the commands that set the XML parameters.
scripts/Mmakefile:
Get mmake to rebuild mdbrc from mdbrc.in when mdbrc.in changes.
trace/mercury_trace_internal.c:
trace/mercury_trace_cmds.h:
trace/mercury_trace_cmd_*.[ch]:
Implement the changes described at the top.
Fix an old bug: the commands that update the search path for the "list"
command don't make the search path term permanent, which is needed in
non-conservative-gc grades.
trace/mercury_trace_spy.c:
Fix some obsolete references to : as module qualifier.
trace/mercury_trace_browse.[ch]:
Delete the functionality now moved to mercury_trace_cmd_parameter.c.
tests/debugger/mdb_command_test.inp:
Update the set of commands being tested.
tests/debugger/save.{inp,exp}:
Update the parameter commands in this test case.
