Estimated hours taken: 18
Branches: main
Move the univ, maybe, pair and unit types from std_util into their own
modules. std_util still contains the general purpose higher-order programming
constructs.
library/std_util.m:
Move univ, maybe, pair and unit (plus any other related types
and procedures) into their own modules.
library/maybe.m:
New module. This contains the maybe and maybe_error types and
the associated procedures.
library/pair.m:
New module. This contains the pair type and associated procedures.
library/unit.m:
New module. This contains the types unit/0 and unit/1.
library/univ.m:
New module. This contains the univ type and associated procedures.
library/library.m:
Add the new modules.
library/private_builtin.m:
Update the declaration of the type_ctor_info struct for univ.
runtime/mercury.h:
Update the declaration for the type_ctor_info struct for univ.
runtime/mercury_mcpp.h:
runtime/mercury_hlc_types.h:
Update the definition of MR_Univ.
runtime/mercury_init.h:
Fix a comment: ML_type_name is now exported from type_desc.m.
compiler/mlds_to_il.m:
Update the the name of the module that defines univs (which are
handled specially by the il code generator.)
library/*.m:
compiler/*.m:
browser/*.m:
mdbcomp/*.m:
profiler/*.m:
deep_profiler/*.m:
Conform to the above changes. Import the new modules where they
are needed; don't import std_util where it isn't needed.
Fix formatting in lots of modules. Delete duplicate module
imports.
tests/*:
Update the test suite to confrom to the above changes.
Estimated hours taken: 2
Branches: main
browser/*.m:
Replace __ with . as the module qualifier everywhere in all the modules
of the browser directory. Convert the currently tab-indented modules
to four-space indentation. Delete some unnecessary module
qualifications. Change some type names and function symbols to avoid
ambiguities. Replace a bunch of uses of DCGs with state variable
notation.
Estimated hours taken: 8
Branches: main
Add two new capabilities to the debugger.
The first capability is the idea of "held variables", variables that the
debugger holds onto even when execution has left the event they came from.
You can hold onto a variable via the mdb command "hold varname heldvarname".
You can suffix the name of the existing variable with a term path, in which
case the new held variable will refer only to the specified part of the term.
Later mdb commands can refer to the held variable by prefixing its name with
a dollar sign. For example, after "hold HeadVar__1^2 x", "$x" will refer to
the term that was the second argument of HeadVar__1 at the program point
at which the "hold" command was executed.
The second capability is the ability to compute the diff of two terms and
express those diffs as the term paths of the function symbols at which the two
terms differ, instead of the line numbers you get by using save_to_file and the
usual Unix diff command. The mdb command is "diff var1 var2". We limit the
number of term paths of difference sites that we display at any one time;
the mdb diff command has options to control this.
NEWS:
Mention the new capabilities.
doc/user_guide.texi:
Document the new mdb commands "hold" and "diff", the new mdb command
"held_vars" which simply lists the names of all the held variables
(just as "vars" lists the names of all the nonheld variables currently
accessible), and the concept of held variables.
doc/mdb_categories:
Update this file for the new mdb commands and concepts.
browser/browse_diff.m:
This new module implements the diff operation on terms.
browser/mdb.m:
Add the new module to the list of submodules of the mdb package.
browser/*.m:
Minor cleanups, such as importing only one module per line; there
are no algorithmic changes.
trace/mercury_trace_hold_vars.[ch]:
This new module implements the database of held variables.
trace/Mmakefile:
Mention the new module.
trace/mercury_trace_internal.c:
Implement the three new mdb commands.
trace/mercury_trace_vars.[ch]:
Modify the functions that recognize variable specifications or
process them to work with held variables as well as variables from
the current environment. This required some reorganization of the
internals of this module.
Provide some a utility function, MR_trace_parse_lookup_var_path,
for converting a string representing the specification of a term
(a variable and possibly some path within it) to the type and value
of that term. Make the utility function this is based upon,
MR_lookup_unambiguous_var_spec, replace the previous but less capable
MR_convert_var_spec_to_type_value.
trace/mercury_trace_spy.c:
Conform to the change in mercury_trace_vars.c.
trace/mercury_trace_util.c:
Make a utility function more robust.
trace/mercury_trace_alias.c:
Minor cleanups.
tests/debugger/queens.{inp,exp*}:
Update this test case to test the debugger's new capabilities.
tests/debugger/completion.{inp,exp*}:
Update this test case to expect the new mdb commands, and avoid the
ambiguity between "help" and "held_vars".
Estimated hours taken: 0.2
Branches: main
browser/*.m:
Fix the current mixture of __ and . to module qualify module names
by standardizing on the latter.
Estimated hours taken: 4
Branches: main
This diff contains no changes in algorithms whatsoever.
browser/*.m:
compiler/*.m:
library/*.m:
Replace old-style lambdas with new-style lambdas or with named
procedures.
Estimated hours taken: 1
Make all the modules in the browser library sub-modules of
module `mdb', to avoid link errors when users use module names
such as `parse'.
browser/Mmakefile:
browser/browser_library.m:
browser/mdb.m:
Rename browser_library.m to mdb.m.
Change `:- import_module' declarations to
`:- include_module' declarations.
browser/Mmakefile:
Remove the special case rule for `mer_browser.init' --
it doesn't work when the file names are not the same
as the module name. Instead, the default rule for `mdb.init'
is used and the output is copied to `mer_browser.init'.
browser/.cvsignore:
Rename header files, etc.
browser/*.m:
Add a `mdb__' prefix to the names of modules in the browser library
in `:- module' and `:- import_module' declarations.
trace/*.c:
Rename the header files for the browser library in
`#include' statements.
tests/hard_coded/Mmakefile:
tests/hard_coded/parse.m:
tests/hard_coded/parse.exp:
Test case.
Estimated hours taken: 40
Add a simple term browser for use by the trace-based debugger.
This is minimal but useful browser. Not included in this version
are a scripting language, Windows Explorer-style tree expansion,
and other features not yet thought of.
N.B. This still needs to be hooked into the debugger.
browser/Mmakefile:
Added target browse_test.
browser/browser_library.m:
Added modules required for the browser.
browser/browse_test.m:
A simple driver for the browser with an example
data structure to browse. (new file)
browser/browse.m:
The browser proper. (new file)
browser/parse.m:
Parser for browser's command language. (new file)
browser/util.m:
Miscellaneous utilities used in the browser code. (new file)
browser/frame.m:
Bare minimal ASCII graphics frames. (new file)
