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Packages are modules whose only job is to serve as a container for submodules. Modules like top_level.m, hlds.m, parse_tree.m and ll_backend.m are packages in this (informal) sense. Besides the include_module declarations for their submodules, most of the packages in the compiler used to import some modules, mostly other packages whose component modules their submodules may need. For example, ll_backend.m used to import parse_tree.m. This meant that modules in the ll_backend package did not have to import parse_tree.m before importing modules in the parse_tree package. However, this had a price. When we add a new module to the parse_tree package, parse_tree.int would change, and this would require the recompilation of ALL the modules in the ll_backend package, even the ones that did NOT import ANY of the modules in the parse_tree package. This happened even at one remove. Pretty much all modules in every one of the backend have to import one or more modules in the hlds package, and they therefore have import hlds.m. Since hlds.m imported transform_hlds.m, any addition of a new middle pass to the transform_hlds package required the recompilation of all backend modules, even in the usual case of the two having nothing to do with each other. This diff removes all import_module declarations from the packages, and replaces them with import_module declarations in the modules that need them. This includes only a SUBSET of their child modules and of the non-child modules that import them.
31 lines
1.1 KiB
Mathematica
31 lines
1.1 KiB
Mathematica
%-----------------------------------------------------------------------------%
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% vim: ft=mercury ts=4 sw=4 et
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%-----------------------------------------------------------------------------%
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% Copyright (C) 2005-2006, 2008 The University of Melbourne.
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% This file may only be copied under the terms of the GNU General
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% Public License - see the file COPYING in the Mercury distribution.
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%-----------------------------------------------------------------------------%
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%
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% File: ctgc.m
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% Main author: nancy
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%
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% Package grouping all the modules that are used for compile-time garbage
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% collection.
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%
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%-----------------------------------------------------------------------------%
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:- module transform_hlds.ctgc.
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:- interface.
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:- include_module datastruct.
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:- include_module fixpoint_table.
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:- include_module livedata.
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:- include_module selector.
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:- include_module structure_reuse.
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:- include_module structure_sharing.
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:- include_module util.
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%-----------------------------------------------------------------------------%
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:- end_module transform_hlds.ctgc.
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%-----------------------------------------------------------------------------%
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