Estimated hours taken: 10
Allow modules to be put in source files whose names do not directly match
their the module names. When looking for the source for a module such
as `foo:bar:baz', search for it first in `foo.bar.baz.m', then in `bar.baz.m',
and finally in `baz.m'.
compiler/prog_io.m:
Change prog_io__read_module so that it returns the name of
the module read, as determined by the `:- module' declaration.
Add predicate `check_module_has_expected_name', for checking
that this name matches what was expected.
compiler/modules.m:
Add read_mod_from_file, for reading a module given the file name,
and generated_file_dependencies, for generating the dependencies
of a module given the file name. (As opposed to the module name.)
Change read_mod and read_mod_ignore_errors so that they
search for `.m' files as described above, and return the name
of the source file read.
Also improve the efficiency of read_dependencies slightly:
when reading in `.int' files, there's no need to call
split_into_submodules, because we generate a seperate
`.int' file for each submodule anyway.
compiler/mercury_compile.m:
Change the handling of command-line arguments.
Arguments ending with `.m' are assumed to be file names,
and other arguments are assumed to be module names.
For file names, call read_mod_from_file instead of read_mod.
compiler/handle_options.m:
Change help message to reflect the above change to the semantics
of command-line arguments.
compiler/intermod.m:
compiler/trans_opt.m:
Fix a bug: call prog_io__read_opt_file instead of prog_io__read_module.
doc/user_guide.texi:
Document the above change to the semantics of command-line arguments.
Update the "libraries" chapter to reflect our support for nested
modules.
tests/*/*.m:
tests/*/*.exp:
Fix a few incorrect module names in `:- module' declarations.
