forked from OSchip/llvm-project
99 lines
3.8 KiB
ReStructuredText
99 lines
3.8 KiB
ReStructuredText
================
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Modularize Usage
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================
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``modularize [<modularize-options>] [<module-map>|<include-files-list>]*
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[<front-end-options>...]``
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``<modularize-options>`` is a place-holder for options
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specific to modularize, which are described below in
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`Modularize Command Line Options`.
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``<module-map>`` specifies the path of a file name for an
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existing module map. The module map must be well-formed in
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terms of syntax. Modularize will extract the header file names
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from the map. Only normal headers are checked, assuming headers
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marked "private", "textual", or "exclude" are not to be checked
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as a top-level include, assuming they either are included by
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other headers which are checked, or they are not suitable for
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modules.
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``<include-files-list>`` specifies the path of a file name for a
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file containing the newline-separated list of headers to check
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with respect to each other. Lines beginning with '#' and empty
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lines are ignored. Header file names followed by a colon and
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other space-separated file names will include those extra files
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as dependencies. The file names can be relative or full paths,
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but must be on the same line. For example::
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header1.h
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header2.h
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header3.h: header1.h header2.h
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Note that unless a ``-prefix (header path)`` option is specified,
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non-absolute file paths in the header list file will be relative
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to the header list file directory. Use -prefix to specify a different
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directory.
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``<front-end-options>`` is a place-holder for regular Clang
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front-end arguments, which must follow the <include-files-list>.
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Note that by default, modularize assumes .h files
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contain C++ source, so if you are using a different language,
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you might need to use a ``-x`` option to tell Clang that the
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header contains another language, i.e.: ``-x c``
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Note also that because modularize does not use the clang driver,
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you will likely need to pass in additional compiler front-end
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arguments to match those passed in by default by the driver.
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Modularize Command Line Options
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===============================
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.. option:: -prefix=<header-path>
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Prepend the given path to non-absolute file paths in the header list file.
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By default, headers are assumed to be relative to the header list file
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directory. Use ``-prefix`` to specify a different directory.
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.. option:: -module-map-path=<module-map-path>
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Generate a module map and output it to the given file. See the description
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in :ref:`module-map-generation`.
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.. option:: -problem-files-list=<problem-files-list-file-name>
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For use only with module map assistant. Input list of files that
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have problems with respect to modules. These will still be
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included in the generated module map, but will be marked as
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"excluded" headers.
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.. option:: -root-module=<root-name>
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Put modules generated by the -module-map-path option in an enclosing
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module with the given name. See the description in :ref:`module-map-generation`.
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.. option:: -block-check-header-list-only
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Limit the #include-inside-extern-or-namespace-block
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check to only those headers explicitly listed in the header list.
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This is a work-around for avoiding error messages for private includes that
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purposefully get included inside blocks.
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.. option:: -no-coverage-check
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Don't do the coverage check for a module map.
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.. option:: -coverage-check-only
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Only do the coverage check for a module map.
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.. option:: -display-file-lists
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Display lists of good files (no compile errors), problem files,
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and a combined list with problem files preceded by a '#'.
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This can be used to quickly determine which files have problems.
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The latter combined list might be useful in starting to modularize
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a set of headers. You can start with a full list of headers,
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use -display-file-lists option, and then use the combined list as
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your intermediate list, uncommenting-out headers as you fix them.
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