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author | Pedro Alves <palves@redhat.com> | 2018-11-21 11:55:13 +0000 |
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committer | Pedro Alves <palves@redhat.com> | 2018-11-21 12:06:36 +0000 |
commit | 0891c3cc132495ad7b323896efae4f91eca87c6c (patch) | |
tree | bc1939d0e9e2584a9ffb5e66b5c7e09349e7695d /gdb/cp-support.c | |
parent | 6b1747cd135ff9859fceb6043179b1ef94363996 (diff) | |
download | binutils-0891c3cc132495ad7b323896efae4f91eca87c6c.zip binutils-0891c3cc132495ad7b323896efae4f91eca87c6c.tar.gz binutils-0891c3cc132495ad7b323896efae4f91eca87c6c.tar.bz2 |
Eliminate make_symbol_overload_list-related globals & cleanup
This gets rid of a few globals and a cleanup.
make_symbol_overload_list & friends currently maintain a global
open-coded vector. Reimplement that with a std::vector, trickled down
through the functions. Rename a few functions from "make_" to "add_"
for clarity.
gdb/ChangeLog:
2018-11-21 Pedro Alves <palves@redhat.com>
* cp-support.c (sym_return_val_size, sym_return_val_index)
(sym_return_val): Delete.
(overload_list_add_symbol): Add std::vector parameter. Adjust to
add to the vector.
(make_symbol_overload_list): Adjust to return a std::vector
instead of maintaining a global open coded vector.
(make_symbol_overload_list_block): Add std::vector parameter.
(make_symbol_overload_list_block): Rename to ...
(add_symbol_overload_list_block): ... this and add std::vector
parameter.
(make_symbol_overload_list_namespace): Rename to ...
(add_symbol_overload_list_namespace): ... this and add std::vector
parameter.
(make_symbol_overload_list_adl_namespace): Rename to ...
(add_symbol_overload_list_adl_namespace): ... this and add
std::vector parameter.
(make_symbol_overload_list_adl): Delete.
(add_symbol_overload_list_adl): New.
(make_symbol_overload_list_using): Rename to ...
(add_symbol_overload_list_using): ... this and add std::vector
parameter.
(make_symbol_overload_list_qualified): Rename to ...
(add_symbol_overload_list_qualified): ... this and add std::vector
parameter.
* cp-support.h: Include "common/array-view.h" and <vector>.
(make_symbol_overload_list): Change return type to std::vector.
(make_symbol_overload_list_adl): Delete declaration.
(add_symbol_overload_list_adl): New declaration.
* valops.c (find_overload_match): Local 'oload_syms' now a
std::vector.
(find_oload_champ_namespace): 'oload_syms' parameter now a
std::vector pointer.
(find_oload_champ_namespace_loop): 'oload_syms' parameter now a
std::vector pointer. Adjust to new make_symbol_overload_list
interface.
Diffstat (limited to 'gdb/cp-support.c')
-rw-r--r-- | gdb/cp-support.c | 142 |
1 files changed, 63 insertions, 79 deletions
diff --git a/gdb/cp-support.c b/gdb/cp-support.c index 25c8870..1f95253 100644 --- a/gdb/cp-support.c +++ b/gdb/cp-support.c @@ -48,19 +48,19 @@ static unsigned int cp_find_first_component_aux (const char *name, static void demangled_name_complaint (const char *name); -/* Functions/variables related to overload resolution. */ - -static int sym_return_val_size = -1; -static int sym_return_val_index; -static struct symbol **sym_return_val; +/* Functions related to overload resolution. */ static void overload_list_add_symbol (struct symbol *sym, - const char *oload_name); + const char *oload_name, + std::vector<symbol *> *overload_list); -static void make_symbol_overload_list_using (const char *func_name, - const char *the_namespace); +static void add_symbol_overload_list_using + (const char *func_name, const char *the_namespace, + std::vector<symbol *> *overload_list); -static void make_symbol_overload_list_qualified (const char *func_name); +static void add_symbol_overload_list_qualified + (const char *func_name, + std::vector<symbol *> *overload_list); /* The list of "maint cplus" commands. */ @@ -1137,30 +1137,28 @@ cp_entire_prefix_len (const char *name) /* Overload resolution functions. */ /* Test to see if SYM is a symbol that we haven't seen corresponding - to a function named OLOAD_NAME. If so, add it to the current - completion list. */ + to a function named OLOAD_NAME. If so, add it to + OVERLOAD_LIST. */ static void overload_list_add_symbol (struct symbol *sym, - const char *oload_name) + const char *oload_name, + std::vector<symbol *> *overload_list) { - int newsize; - int i; - gdb::unique_xmalloc_ptr<char> sym_name; - /* If there is no type information, we can't do anything, so skip. */ if (SYMBOL_TYPE (sym) == NULL) return; /* skip any symbols that we've already considered. */ - for (i = 0; i < sym_return_val_index; ++i) + for (symbol *listed_sym : *overload_list) if (strcmp (SYMBOL_LINKAGE_NAME (sym), - SYMBOL_LINKAGE_NAME (sym_return_val[i])) == 0) + SYMBOL_LINKAGE_NAME (listed_sym)) == 0) return; /* Get the demangled name without parameters */ - sym_name = cp_remove_params (SYMBOL_NATURAL_NAME (sym)); + gdb::unique_xmalloc_ptr<char> sym_name + = cp_remove_params (SYMBOL_NATURAL_NAME (sym)); if (!sym_name) return; @@ -1168,36 +1166,22 @@ overload_list_add_symbol (struct symbol *sym, if (strcmp (sym_name.get (), oload_name) != 0) return; - /* We have a match for an overload instance, so add SYM to the - current list of overload instances */ - if (sym_return_val_index + 3 > sym_return_val_size) - { - newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *); - sym_return_val = (struct symbol **) - xrealloc ((char *) sym_return_val, newsize); - } - sym_return_val[sym_return_val_index++] = sym; - sym_return_val[sym_return_val_index] = NULL; + overload_list->push_back (sym); } /* Return a null-terminated list of pointers to function symbols that are named FUNC_NAME and are visible within NAMESPACE. */ -struct symbol ** +struct std::vector<symbol *> make_symbol_overload_list (const char *func_name, const char *the_namespace) { - struct cleanup *old_cleanups; const char *name; + std::vector<symbol *> overload_list; - sym_return_val_size = 100; - sym_return_val_index = 0; - sym_return_val = XNEWVEC (struct symbol *, sym_return_val_size + 1); - sym_return_val[0] = NULL; - - old_cleanups = make_cleanup (xfree, sym_return_val); + overload_list.reserve (100); - make_symbol_overload_list_using (func_name, the_namespace); + add_symbol_overload_list_using (func_name, the_namespace, &overload_list); if (the_namespace[0] == '\0') name = func_name; @@ -1211,19 +1195,17 @@ make_symbol_overload_list (const char *func_name, name = concatenated_name; } - make_symbol_overload_list_qualified (name); - - discard_cleanups (old_cleanups); - - return sym_return_val; + add_symbol_overload_list_qualified (name, &overload_list); + return overload_list; } /* Add all symbols with a name matching NAME in BLOCK to the overload list. */ static void -make_symbol_overload_list_block (const char *name, - const struct block *block) +add_symbol_overload_list_block (const char *name, + const struct block *block, + std::vector<symbol *> *overload_list) { struct block_iterator iter; struct symbol *sym; @@ -1231,14 +1213,15 @@ make_symbol_overload_list_block (const char *name, lookup_name_info lookup_name (name, symbol_name_match_type::FULL); ALL_BLOCK_SYMBOLS_WITH_NAME (block, lookup_name, iter, sym) - overload_list_add_symbol (sym, name); + overload_list_add_symbol (sym, name, overload_list); } /* Adds the function FUNC_NAME from NAMESPACE to the overload set. */ static void -make_symbol_overload_list_namespace (const char *func_name, - const char *the_namespace) +add_symbol_overload_list_namespace (const char *func_name, + const char *the_namespace, + std::vector<symbol *> *overload_list) { const char *name; const struct block *block = NULL; @@ -1259,12 +1242,12 @@ make_symbol_overload_list_namespace (const char *func_name, /* Look in the static block. */ block = block_static_block (get_selected_block (0)); if (block) - make_symbol_overload_list_block (name, block); + add_symbol_overload_list_block (name, block, overload_list); /* Look in the global block. */ block = block_global_block (block); if (block) - make_symbol_overload_list_block (name, block); + add_symbol_overload_list_block (name, block, overload_list); } @@ -1272,8 +1255,9 @@ make_symbol_overload_list_namespace (const char *func_name, base types. */ static void -make_symbol_overload_list_adl_namespace (struct type *type, - const char *func_name) +add_symbol_overload_list_adl_namespace (struct type *type, + const char *func_name, + std::vector<symbol *> *overload_list) { char *the_namespace; const char *type_name; @@ -1303,7 +1287,8 @@ make_symbol_overload_list_adl_namespace (struct type *type, strncpy (the_namespace, type_name, prefix_len); the_namespace[prefix_len] = '\0'; - make_symbol_overload_list_namespace (func_name, the_namespace); + add_symbol_overload_list_namespace (func_name, the_namespace, + overload_list); } /* Check public base type */ @@ -1311,28 +1296,23 @@ make_symbol_overload_list_adl_namespace (struct type *type, for (i = 0; i < TYPE_N_BASECLASSES (type); i++) { if (BASETYPE_VIA_PUBLIC (type, i)) - make_symbol_overload_list_adl_namespace (TYPE_BASECLASS (type, - i), - func_name); + add_symbol_overload_list_adl_namespace (TYPE_BASECLASS (type, i), + func_name, + overload_list); } } -/* Adds the overload list overload candidates for FUNC_NAME found - through argument dependent lookup. */ +/* Adds to OVERLOAD_LIST the overload list overload candidates for + FUNC_NAME found through argument dependent lookup. */ -struct symbol ** -make_symbol_overload_list_adl (struct type **arg_types, int nargs, - const char *func_name) +void +add_symbol_overload_list_adl (gdb::array_view<type *> arg_types, + const char *func_name, + std::vector<symbol *> *overload_list) { - int i; - - gdb_assert (sym_return_val_size != -1); - - for (i = 1; i <= nargs; i++) - make_symbol_overload_list_adl_namespace (arg_types[i - 1], - func_name); - - return sym_return_val; + for (type *arg_type : arg_types) + add_symbol_overload_list_adl_namespace (arg_type, func_name, + overload_list); } /* This applies the using directives to add namespaces to search in, @@ -1341,8 +1321,9 @@ make_symbol_overload_list_adl (struct type **arg_types, int nargs, make_symbol_overload_list. */ static void -make_symbol_overload_list_using (const char *func_name, - const char *the_namespace) +add_symbol_overload_list_using (const char *func_name, + const char *the_namespace, + std::vector<symbol *> *overload_list) { struct using_direct *current; const struct block *block; @@ -1374,13 +1355,15 @@ make_symbol_overload_list_using (const char *func_name, scoped_restore reset_directive_searched = make_scoped_restore (¤t->searched, 1); - make_symbol_overload_list_using (func_name, - current->import_src); + add_symbol_overload_list_using (func_name, + current->import_src, + overload_list); } } /* Now, add names for this namespace. */ - make_symbol_overload_list_namespace (func_name, the_namespace); + add_symbol_overload_list_namespace (func_name, the_namespace, + overload_list); } /* This does the bulk of the work of finding overloaded symbols. @@ -1388,7 +1371,8 @@ make_symbol_overload_list_using (const char *func_name, (possibly including namespace info). */ static void -make_symbol_overload_list_qualified (const char *func_name) +add_symbol_overload_list_qualified (const char *func_name, + std::vector<symbol *> *overload_list) { struct compunit_symtab *cust; struct objfile *objfile; @@ -1407,7 +1391,7 @@ make_symbol_overload_list_qualified (const char *func_name) complete on local vars. */ for (b = get_selected_block (0); b != NULL; b = BLOCK_SUPERBLOCK (b)) - make_symbol_overload_list_block (func_name, b); + add_symbol_overload_list_block (func_name, b, overload_list); surrounding_static_block = block_static_block (get_selected_block (0)); @@ -1418,7 +1402,7 @@ make_symbol_overload_list_qualified (const char *func_name) { QUIT; b = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), GLOBAL_BLOCK); - make_symbol_overload_list_block (func_name, b); + add_symbol_overload_list_block (func_name, b, overload_list); } ALL_COMPUNITS (objfile, cust) @@ -1428,7 +1412,7 @@ make_symbol_overload_list_qualified (const char *func_name) /* Don't do this block twice. */ if (b == surrounding_static_block) continue; - make_symbol_overload_list_block (func_name, b); + add_symbol_overload_list_block (func_name, b, overload_list); } } |