/* The lang_hooks data structure.
- Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ 2011 Free Software Foundation, Inc.
This file is part of GCC.
/* This file should be #include-d after tree.h. */
-struct diagnostic_context;
struct diagnostic_info;
struct gimplify_omp_ctx;
/* Fill in information for the debugger about the bounds of TYPE. */
void (*get_subrange_bounds) (const_tree, tree *, tree *);
+ /* A type descriptive of TYPE's complex layout generated to help the
+ debugger to decode variable-length or self-referential constructs.
+ This is only used for the AT_GNAT_descriptive_type DWARF attribute. */
+ tree (*descriptive_type) (const_tree);
+
/* If we requested a pointer to a vector, build up the pointers that
we stripped off while looking for the inner type. Similarly for
return values from functions. The argument TYPE is the top of the
chain, and BOTTOM is the new type which we will point to. */
tree (*reconstruct_complex_type) (tree, tree);
-
- /* Nonzero if types that are identical are to be hashed so that only
- one copy is kept. If a language requires unique types for each
- user-specified type, such as Ada, this should be set to TRUE. */
- bool hash_types;
};
/* Language hooks related to decls and the symbol table. */
struct lang_hooks_for_decls
{
- /* Returns nonzero if we are in the global binding level. Ada
- returns -1 for an undocumented reason used in stor-layout.c. */
- int (*global_bindings_p) (void);
+ /* Return true if we are in the global binding level. This hook is really
+ needed only if the language supports variable-sized types at the global
+ level, i.e. declared outside subprograms. */
+ bool (*global_bindings_p) (void);
/* Function to add a decl to the current scope level. Takes one
argument, a decl to add. Returns that decl, or, if the same
of options. */
unsigned int (*option_lang_mask) (void);
+ /* Initialize variables in an options structure. */
+ void (*init_options_struct) (struct gcc_options *opts);
+
/* After the initialize_diagnostics hook is called, do any simple
- initialization needed before any calls to handle_option. */
+ initialization needed before any calls to handle_option, other
+ than that done by the init_options_struct hook. */
void (*init_options) (unsigned int decoded_options_count,
struct cl_decoded_option *decoded_options);
/* Callback used to perform language-specific initialization for the
global diagnostic context structure. */
- void (*initialize_diagnostics) (struct diagnostic_context *);
+ void (*initialize_diagnostics) (diagnostic_context *);
/* Return true if a warning should be given about option OPTION,
which is for the wrong language, false if it should be quietly
checking whether ARG is NULL, which indicates that no argument
was in fact supplied. For -f and -W switches, VALUE is 1 or 0
for the positive and negative forms respectively. HANDLERS should
- be passed to any recursive handle_option calls.
+ be passed to any recursive handle_option calls. LOC is the
+ location of the option.
Return true if the switch is valid, false if invalid. */
bool (*handle_option) (size_t code, const char *arg, int value, int kind,
+ location_t loc,
const struct cl_option_handlers *handlers);
/* Called when all command line options have been parsed to allow
/* Called at the end of compilation, as a finalizer. */
void (*finish) (void);
- /* Parses the entire file. The argument is nonzero to cause bison
- parsers to dump debugging information during parsing. */
- void (*parse_file) (int);
+ /* Parses the entire file. */
+ void (*parse_file) (void);
/* Determines if it's ok for a function to have no noreturn attribute. */
bool (*missing_noreturn_ok_p) (tree);
int (*types_compatible_p) (tree x, tree y);
/* Called by report_error_function to print out function name. */
- void (*print_error_function) (struct diagnostic_context *, const char *,
+ void (*print_error_function) (diagnostic_context *, const char *,
struct diagnostic_info *);
/* Convert a character from the host's to the target's character
FUNCTION_DECL for `std::terminate'. */
tree (*eh_protect_cleanup_actions) (void);
+ /* Return true if a stmt can fallthru. Used by block_may_fallthru
+ to possibly handle language trees. */
+ bool (*block_may_fallthru) (const_tree);
+
/* True if this language uses __cxa_end_cleanup when the ARM EABI
is enabled. */
bool eh_use_cxa_end_cleanup;
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