Change decode_compound_collector to use std::vector

This patch changes decode_compound_collector to use std::vector instead of
VEC, eliminating a cleanup in the process.

gdb/ChangeLog:

	* linespec.c (decode_compound_collector::decode_compound_collector):
	Remove initialization for `m_symtabs'.
	(decode_compound_collector::release_symbols): Change return type
	to std::vector.  Update all callers.
	(class decode_compound_collector) <m_symbols>: Change type to
	std::vector.
	(lookup_prefix_sym): Change return type to std::vector.  Update all
	callers.
	(compare_symbols): Remove.
	(std_compare_symbols): Rename to `compare_symbols'.
	(find_method): Change `sym_classes' parameter to std::vector.
	Update all callers.  Use std::sort to sort sym_classes.
	(find_linespec_symbols): Remove cleanup.
This commit is contained in:
Keith Seitz 2018-08-29 15:12:23 -07:00
parent c2a031c582
commit 4dedf84da9
2 changed files with 37 additions and 64 deletions

View File

@ -1,3 +1,19 @@
2018-08-29 Keith Seitz <keiths@redhat.com>
* linespec.c (decode_compound_collector::decode_compound_collector):
Remove initialization for `m_symtabs'.
(decode_compound_collector::release_symbols): Change return type
to std::vector. Update all callers.
(class decode_compound_collector) <m_symbols>: Change type to
std::vector.
(lookup_prefix_sym): Change return type to std::vector. Update all
callers.
(compare_symbols): Remove.
(std_compare_symbols): Rename to `compare_symbols'.
(find_method): Change `sym_classes' parameter to std::vector.
Update all callers. Use std::sort to sort sym_classes.
(find_linespec_symbols): Remove cleanup.
2018-08-29 Keith Seitz <keiths@redhat.com>
* linespec.c (struct linespec) <minimal_symbols>: Change type to

View File

@ -400,9 +400,7 @@ static void minsym_found (struct linespec_state *self, struct objfile *objfile,
struct minimal_symbol *msymbol,
std::vector<symtab_and_line> *result);
static int compare_symbols (const void *a, const void *b);
static bool std_compare_symbols (const struct symbol *a,
const struct symbol *b);
static bool compare_symbols (const struct symbol *a, const struct symbol *b);
static bool compare_msymbols (const bound_minimal_symbol &a,
const bound_minimal_symbol &b);
@ -2266,7 +2264,7 @@ convert_linespec_to_sals (struct linespec_state *state, linespec_p ls)
to each other. */
std::sort (ls->function_symbols->begin (),
ls->function_symbols->end (),
std_compare_symbols);
compare_symbols);
for (const auto &sym : *ls->function_symbols)
{
@ -3501,7 +3499,6 @@ class decode_compound_collector
{
public:
decode_compound_collector ()
: m_symbols (NULL)
{
m_unique_syms = htab_create_alloc (1, htab_hash_pointer,
htab_eq_pointer, NULL,
@ -3514,12 +3511,10 @@ public:
htab_delete (m_unique_syms);
}
/* Releases ownership of the collected symbols and returns them. */
VEC (symbolp) *release_symbols ()
/* Return all symbols collected. */
std::vector<symbol *> release_symbols ()
{
VEC (symbolp) *res = m_symbols;
m_symbols = NULL;
return res;
return std::move (m_symbols);
}
/* Callable as a symbol_found_callback_ftype callback. */
@ -3531,7 +3526,7 @@ private:
htab_t m_unique_syms;
/* The result vector. */
VEC (symbolp) *m_symbols;
std::vector<symbol *> m_symbols;
};
bool
@ -3554,7 +3549,7 @@ decode_compound_collector::operator () (symbol *sym)
if (!*slot)
{
*slot = sym;
VEC_safe_push (symbolp, m_symbols, sym);
m_symbols.push_back (sym);
}
return true; /* Continue iterating. */
@ -3564,7 +3559,7 @@ decode_compound_collector::operator () (symbol *sym)
/* Return any symbols corresponding to CLASS_NAME in FILE_SYMTABS. */
static VEC (symbolp) *
static std::vector<symbol *>
lookup_prefix_sym (struct linespec_state *state,
std::vector<symtab *> *file_symtabs,
const char *class_name)
@ -3603,7 +3598,7 @@ lookup_prefix_sym (struct linespec_state *state,
symbols with the same program space end up next to each other. */
static bool
std_compare_symbols (const struct symbol *a, const struct symbol *b)
compare_symbols (const struct symbol *a, const struct symbol *b)
{
uintptr_t uia, uib;
@ -3624,36 +3619,6 @@ std_compare_symbols (const struct symbol *a, const struct symbol *b)
return false;
}
/* A qsort comparison function for symbols. The resulting order does
not actually matter; we just need to be able to sort them so that
symbols with the same program space end up next to each other. */
static int
compare_symbols (const void *a, const void *b)
{
struct symbol * const *sa = (struct symbol * const*) a;
struct symbol * const *sb = (struct symbol * const*) b;
uintptr_t uia, uib;
uia = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sa));
uib = (uintptr_t) SYMTAB_PSPACE (symbol_symtab (*sb));
if (uia < uib)
return -1;
if (uia > uib)
return 1;
uia = (uintptr_t) *sa;
uib = (uintptr_t) *sb;
if (uia < uib)
return -1;
if (uia > uib)
return 1;
return 0;
}
/* Like compare_symbols but for minimal symbols. */
static bool
@ -3723,11 +3688,9 @@ find_superclass_methods (std::vector<struct type *> &&superclasses,
static void
find_method (struct linespec_state *self, std::vector<symtab *> *file_symtabs,
const char *class_name, const char *method_name,
VEC (symbolp) *sym_classes, std::vector<symbol *> *symbols,
std::vector<symbol *> *sym_classes, std::vector<symbol *> *symbols,
std::vector<bound_minimal_symbol> *minsyms)
{
struct symbol *sym;
int ix;
size_t last_result_len;
std::vector<struct type *> superclass_vec;
std::vector<const char *> result_names;
@ -3735,10 +3698,8 @@ find_method (struct linespec_state *self, std::vector<symtab *> *file_symtabs,
/* Sort symbols so that symbols with the same program space are next
to each other. */
qsort (VEC_address (symbolp, sym_classes),
VEC_length (symbolp, sym_classes),
sizeof (symbolp),
compare_symbols);
std::sort (sym_classes->begin (), sym_classes->end (),
compare_symbols);
info.state = self;
info.file_symtabs = file_symtabs;
@ -3755,7 +3716,8 @@ find_method (struct linespec_state *self, std::vector<symtab *> *file_symtabs,
because we collect data across the program space before deciding
what to do. */
last_result_len = 0;
for (ix = 0; VEC_iterate (symbolp, sym_classes, ix, sym); ++ix)
unsigned int ix = 0;
for (const auto &sym : *sym_classes)
{
struct type *t;
struct program_space *pspace;
@ -3771,10 +3733,9 @@ find_method (struct linespec_state *self, std::vector<symtab *> *file_symtabs,
/* Handle all items from a single program space at once; and be
sure not to miss the last batch. */
if (ix == VEC_length (symbolp, sym_classes) - 1
if (ix == sym_classes->size () - 1
|| (pspace
!= SYMTAB_PSPACE (symbol_symtab (VEC_index (symbolp, sym_classes,
ix + 1)))))
!= SYMTAB_PSPACE (symbol_symtab (sym_classes->at (ix + 1)))))
{
/* If we did not find a direct implementation anywhere in
this program space, consider superclasses. */
@ -3790,6 +3751,7 @@ find_method (struct linespec_state *self, std::vector<symtab *> *file_symtabs,
superclass_vec.clear ();
last_result_len = result_names.size ();
++ix;
}
}
@ -3976,7 +3938,6 @@ find_linespec_symbols (struct linespec_state *state,
{
std::string klass, method;
const char *last, *p, *scope_op;
VEC (symbolp) *classes;
/* See if we can find a scope operator and break this symbol
name into namespaces${SCOPE_OPERATOR}class_name and method_name. */
@ -4005,18 +3966,16 @@ find_linespec_symbols (struct linespec_state *state,
method = last;
/* Find a list of classes named KLASS. */
classes = lookup_prefix_sym (state, file_symtabs, klass.c_str ());
struct cleanup *old_chain
= make_cleanup (VEC_cleanup (symbolp), &classes);
if (!VEC_empty (symbolp, classes))
std::vector<symbol *> classes
= lookup_prefix_sym (state, file_symtabs, klass.c_str ());
if (!classes.empty ())
{
/* Now locate a list of suitable methods named METHOD. */
TRY
{
find_method (state, file_symtabs,
klass.c_str (), method.c_str (),
classes, symbols, minsyms);
&classes, symbols, minsyms);
}
/* If successful, we're done. If NOT_FOUND_ERROR
@ -4028,8 +3987,6 @@ find_linespec_symbols (struct linespec_state *state,
}
END_CATCH
}
do_cleanups (old_chain);
}
}