123 lines
4.5 KiB
C
123 lines
4.5 KiB
C
/* The lang_hooks data structure.
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Copyright 2001 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef GCC_LANG_HOOKS_H
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#define GCC_LANG_HOOKS_H
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/* A print hook for print_tree (). */
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typedef void (*lang_print_tree_hook) PARAMS ((FILE *, tree, int indent));
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/* The following hooks are documented in langhooks.c. Must not be
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NULL. */
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struct lang_hooks_for_tree_inlining
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{
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union tree_node *(*walk_subtrees) PARAMS ((union tree_node **, int *,
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union tree_node *(*)
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(union tree_node **,
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int *, void *),
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void *, void *));
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int (*cannot_inline_tree_fn) PARAMS ((union tree_node **));
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int (*disregard_inline_limits) PARAMS ((union tree_node *));
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union tree_node *(*add_pending_fn_decls) PARAMS ((void *,
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union tree_node *));
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int (*tree_chain_matters_p) PARAMS ((union tree_node *));
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int (*auto_var_in_fn_p) PARAMS ((union tree_node *, union tree_node *));
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union tree_node *(*copy_res_decl_for_inlining) PARAMS ((union tree_node *,
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union tree_node *,
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union tree_node *,
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void *, int *,
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void *));
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int (*anon_aggr_type_p) PARAMS ((union tree_node *));
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};
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/* Language-specific hooks. See langhooks-def.h for defaults. */
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struct lang_hooks
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{
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/* String identifying the front end. e.g. "GNU C++". */
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const char *name;
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/* sizeof (struct lang_identifier), so make_node () creates
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identifier nodes long enough for the language-specific slots. */
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size_t identifier_size;
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/* Called first, to initialize the front end. */
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void (*init) PARAMS ((void));
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/* Called last, as a finalizer. */
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void (*finish) PARAMS ((void));
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/* Called immediately after parsing to clear the binding stack. */
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void (*clear_binding_stack) PARAMS ((void));
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/* Called to initialize options, before any calls to decode_option. */
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void (*init_options) PARAMS ((void));
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/* Function called with an option vector as argument, to decode a
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single option (typically starting with -f or -W or +). It should
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return the number of command-line arguments it uses if it handles
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the option, or 0 and not complain if it does not recognise the
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option. If this function returns a negative number, then its
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absolute value is the number of command-line arguments used, but,
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in addition, no language-independent option processing should be
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done for this option. */
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int (*decode_option) PARAMS ((int, char **));
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/* Called when all command line options have been processed. */
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void (*post_options) PARAMS ((void));
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/* Called to obtain the alias set to be used for an expression or type.
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Returns -1 if the language does nothing special for it. */
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HOST_WIDE_INT (*get_alias_set) PARAMS ((tree));
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/* Nonzero if TYPE_READONLY and TREE_READONLY should always be honored. */
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bool honor_readonly;
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/* The front end can add its own statistics to -fmem-report with
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this hook. It should output to stderr. */
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void (*print_statistics) PARAMS ((void));
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/* Called by print_tree when there is a tree of class 'x' that it
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doesn't know how to display. */
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lang_print_tree_hook print_xnode;
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/* Called to print language-dependent parts of a class 'd', class
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't', and IDENTIFIER_NODE nodes. */
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lang_print_tree_hook print_decl;
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lang_print_tree_hook print_type;
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lang_print_tree_hook print_identifier;
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/* Set yydebug for bison-based parsers, when -dy is given on the
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command line. By default, if the parameter is non-zero, prints a
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warning that the front end does not use such a parser. */
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void (*set_yydebug) PARAMS ((int));
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struct lang_hooks_for_tree_inlining tree_inlining;
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/* Whenever you add entries here, make sure you adjust langhooks.h
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and langhooks.c accordingly. */
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};
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/* Each front end provides its own. */
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extern const struct lang_hooks lang_hooks;
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#endif /* GCC_LANG_HOOKS_H */
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