Most modules that imported the old term.m need only a small subset
of its functionality. After this diff, most modules that used to import
term.m will need to import just one more module, and will import many
fewer predicates and functions in total.
library/term_int.m:
A new module carved out of term.m containing the predicates
that recognize terms containing integers, and the functions
that construct such terms.
While this job has *some* similarity to the job of the existing
term_conversion.m module, most modules in the compiler use only one
of those two modules, so merging them would not be a good idea.
library/term_subst.m:
A new module carved out of term.m containing code to do
substitutions and renames of various kinds.
Rename the occurs predicate as var_occurs_in_subst_term,
and occurs_list as var_occurs_in_subst_terms, since the latter
are much more descriptive. Change the argument order to match
the new names (var, subst, term/terms), as the old one did not
even have the term/terms and the substitution next to each other,
even though neither makes sense without the other.
library/term_unify.m:
A new module carved out of term.m containing code to do unifications.
Give all the predicates more meaningful names:
unify_term -> unify_terms
unify_term_list -> unify_term_lists
unify_term_dont_bind -> unify_terms_dont_bind
unify_term_list_dont_bind -> unify_term_lists_dont_bind
list_subsumes -> first_term_list_subsumes_second
library/term_vars.m:
A new module carved out of term.m containing code that find variables
in terms.
Give all the predicates more meaningful names:
vars -> vars_in_term
vars_2 -> vars_in_term_acc
vars_list -> vars_in_terms
contains_var -> term_contains_var
contains_var_list -> terms_contain_var
Don't move the function version of vars_2 to term_vars.m, effectively
deleting it, since operations that update an accumulator are awkward
for functions.
library/term.m:
Keep the moved predicates and functions in term.m, but
- change their implementation to simply call the moved copy, and
- obsolete the original in favor of the moved copy.
Eventually, after either the next release or the release after the next,
we should delete the obsoleted predicates and functions.
library/MODULES_DOC:
library/library.m:
Add the new modules as documented parts of the standard library.
browser/interactive_query.m:
compiler/analysis.file.m:
compiler/det_util.m:
compiler/hlds_out_goal.m:
compiler/hlds_out_pred.m:
compiler/hlds_out_util.m:
compiler/intermod.m:
compiler/make.module_dep_file.m:
compiler/make_hlds_passes.m:
compiler/parse_class.m:
compiler/parse_inst_mode_defn.m:
compiler/parse_item.m:
compiler/parse_mutable.m:
compiler/parse_pragma.m:
compiler/parse_pragma_analysis.m:
compiler/parse_sym_name.m:
compiler/parse_tree_to_term.m:
compiler/parse_type_defn.m:
compiler/parse_util.m:
compiler/prog_ctgc.m:
compiler/prog_util.m:
compiler/recompilation.used_file.m:
compiler/recompilation.version.m:
compiler/superhomogeneous.m:
compiler/switch_detection.m:
compiler/typecheck.m:
library/io.m:
library/term_conversion.m:
library/varset.m:
Conform to the changes above.
