+2020-04-01 Tom Tromey <tromey@adacore.com>
+
+ * symtab.h (class lookup_name_info) <lookup_name_info>: Change
+ "name" parameter to rvalue reference. Initialize m_name_holder.
+ <lookup_name_info>: New overloads.
+ <name>: Return gdb::string_view.
+ <c_str>: New method.
+ <make_ignore_params>: Update.
+ <search_name_hash>: Update.
+ <language_lookup_name>: Return const char *.
+ <m_name>: Change type.
+ * symtab.c (demangle_for_lookup_info::demangle_for_lookup_info)
+ (demangle_for_lookup_info::demangle_for_lookup_info): Update.
+ (lookup_name_info::match_any): Update.
+ * psymtab.c (match_partial_symbol, lookup_partial_symbol):
+ Update.
+ * minsyms.c (linkage_name_str): Update.
+ * language.c (default_symbol_name_matcher): Update.
+ * dwarf2/read.c (mapped_index_base::find_name_components_bounds):
+ Update.
+ * ada-lang.c (ada_fold_name): Change parameter to string_view.
+ (ada_lookup_name_info::ada_lookup_name_info): Update.
+ (literal_symbol_name_matcher): Update.
+
2020-04-01 Tom Tromey <tromey@adacore.com>
* psymtab.c (psymtab_search_name): Remove function.
to next call. */
static char *
-ada_fold_name (const char *name)
+ada_fold_name (gdb::string_view name)
{
static char *fold_buffer = NULL;
static size_t fold_buffer_size = 0;
- int len = strlen (name);
+ int len = name.size ();
GROW_VECT (fold_buffer, fold_buffer_size, len + 1);
if (name[0] == '\'')
{
- strncpy (fold_buffer, name + 1, len - 2);
+ strncpy (fold_buffer, name.data () + 1, len - 2);
fold_buffer[len - 2] = '\000';
}
else
if (num_defns_collected (obstackp) == 0 && global && !is_wild_match)
{
const char *name = ada_lookup_name (lookup_name);
- lookup_name_info name1 (std::string ("<_ada_") + name + '>',
- symbol_name_match_type::FULL);
+ std::string bracket_name = std::string ("<_ada_") + name + '>';
+ lookup_name_info name1 (bracket_name, symbol_name_match_type::FULL);
for (objfile *objfile : current_program_space->objfiles ())
{
ada_lookup_name_info::ada_lookup_name_info (const lookup_name_info &lookup_name)
{
- const std::string &user_name = lookup_name.name ();
+ gdb::string_view user_name = lookup_name.name ();
if (user_name[0] == '<')
{
if (user_name.back () == '>')
- m_encoded_name = user_name.substr (1, user_name.size () - 2);
+ m_encoded_name
+ = user_name.substr (1, user_name.size () - 2).to_string ();
else
- m_encoded_name = user_name.substr (1, user_name.size () - 1);
+ m_encoded_name
+ = user_name.substr (1, user_name.size () - 1).to_string ();
m_encoded_p = true;
m_verbatim_p = true;
m_wild_match_p = false;
{
m_verbatim_p = false;
- m_encoded_p = user_name.find ("__") != std::string::npos;
+ m_encoded_p = user_name.find ("__") != gdb::string_view::npos;
if (!m_encoded_p)
{
- const char *folded = ada_fold_name (user_name.c_str ());
+ const char *folded = ada_fold_name (user_name);
const char *encoded = ada_encode_1 (folded, false);
if (encoded != NULL)
m_encoded_name = encoded;
else
- m_encoded_name = user_name;
+ m_encoded_name = user_name.to_string ();
}
else
- m_encoded_name = user_name;
+ m_encoded_name = user_name.to_string ();
/* Handle the 'package Standard' special case. See description
of m_standard_p. */
const lookup_name_info &lookup_name,
completion_match_result *comp_match_res)
{
- const std::string &name = lookup_name.name ();
+ gdb::string_view name_view = lookup_name.name ();
- int cmp = (lookup_name.completion_mode ()
- ? strncmp (symbol_search_name, name.c_str (), name.size ())
- : strcmp (symbol_search_name, name.c_str ()));
- if (cmp == 0)
+ if (lookup_name.completion_mode ()
+ ? (strncmp (symbol_search_name, name_view.data (),
+ name_view.size ()) == 0)
+ : symbol_search_name == name_view)
{
if (comp_match_res != NULL)
comp_match_res->set_match (symbol_search_name);
= this->name_components_casing == case_sensitive_on ? strcmp : strcasecmp;
const char *lang_name
- = lookup_name_without_params.language_lookup_name (lang).c_str ();
+ = lookup_name_without_params.language_lookup_name (lang);
/* Comparison function object for lower_bound that matches against a
given symbol name. */
const lookup_name_info &lookup_name,
completion_match_result *comp_match_res)
{
- const std::string &name = lookup_name.name ();
+ gdb::string_view name = lookup_name.name ();
completion_match_for_lcd *match_for_lcd
= (comp_match_res != NULL ? &comp_match_res->match_for_lcd : NULL);
strncmp_iw_mode mode = (lookup_name.completion_mode ()
? strncmp_iw_mode::NORMAL
: strncmp_iw_mode::MATCH_PARAMS);
- if (strncmp_iw_with_mode (symbol_search_name, name.c_str (), name.size (),
+ if (strncmp_iw_with_mode (symbol_search_name, name.data (), name.size (),
mode, language_minimal, match_for_lcd) == 0)
{
if (comp_match_res != NULL)
if (current_language->la_language == language_ada)
return lookup_name.ada ().lookup_name ().c_str ();
- return lookup_name.name ().c_str ();
+ return lookup_name.c_str ();
}
/* See minsyms.h. */
gdb_assert (center < top);
enum language lang = (*center)->ginfo.language ();
- const char *lang_ln
- = name.language_lookup_name (lang).c_str ();
+ const char *lang_ln = name.language_lookup_name (lang);
if (ordered_compare ((*center)->ginfo.search_name (),
lang_ln) >= 0)
internal_error (__FILE__, __LINE__,
_("failed internal consistency check"));
if (strcmp_iw_ordered ((*center)->ginfo.search_name (),
- lookup_name.name ().c_str ()) >= 0)
+ lookup_name.c_str ()) >= 0)
{
top = center;
}
if (lookup_name.ignore_parameters () && lang == language_cplus)
{
gdb::unique_xmalloc_ptr<char> without_params
- = cp_remove_params_if_any (lookup_name.name ().c_str (),
+ = cp_remove_params_if_any (lookup_name.c_str (),
lookup_name.completion_mode ());
if (without_params != NULL)
}
if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME)
- m_demangled_name = lookup_name.name ();
+ m_demangled_name = lookup_name.c_str ();
else
- m_demangled_name = demangle_for_lookup (lookup_name.name ().c_str (),
+ m_demangled_name = demangle_for_lookup (lookup_name.c_str (),
lang, storage);
}
{
/* Lookup any symbol that "" would complete. I.e., this matches all
symbol names. */
- static const lookup_name_info lookup_name ({}, symbol_name_match_type::FULL,
+ static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL,
true);
return lookup_name;
class lookup_name_info final
{
public:
- /* Create a new object. */
- lookup_name_info (std::string name,
+ /* We delete this overload so that the callers are required to
+ explicitly handle the lifetime of the name. */
+ lookup_name_info (std::string &&name,
+ symbol_name_match_type match_type,
+ bool completion_mode = false,
+ bool ignore_parameters = false) = delete;
+
+ /* This overload requires that NAME have a lifetime at least as long
+ as the lifetime of this object. */
+ lookup_name_info (const std::string &name,
+ symbol_name_match_type match_type,
+ bool completion_mode = false,
+ bool ignore_parameters = false)
+ : m_match_type (match_type),
+ m_completion_mode (completion_mode),
+ m_ignore_parameters (ignore_parameters),
+ m_name (name)
+ {}
+
+ /* This overload requires that NAME have a lifetime at least as long
+ as the lifetime of this object. */
+ lookup_name_info (const char *name,
symbol_name_match_type match_type,
bool completion_mode = false,
bool ignore_parameters = false)
: m_match_type (match_type),
m_completion_mode (completion_mode),
m_ignore_parameters (ignore_parameters),
- m_name (std::move (name))
+ m_name (name)
{}
/* Getters. See description of each corresponding field. */
symbol_name_match_type match_type () const { return m_match_type; }
bool completion_mode () const { return m_completion_mode; }
- const std::string &name () const { return m_name; }
+ gdb::string_view name () const { return m_name; }
const bool ignore_parameters () const { return m_ignore_parameters; }
+ /* Like the "name" method but guarantees that the returned string is
+ \0-terminated. */
+ const char *c_str () const
+ {
+ /* Actually this is always guaranteed due to how the class is
+ constructed. */
+ return m_name.data ();
+ }
+
/* Return a version of this lookup name that is usable with
comparisons against symbols have no parameter info, such as
psymbols and GDB index symbols. */
lookup_name_info make_ignore_params () const
{
- return lookup_name_info (m_name, m_match_type, m_completion_mode,
+ return lookup_name_info (c_str (), m_match_type, m_completion_mode,
true /* ignore params */);
}
if (!m_demangled_hashes_p[lang])
{
m_demangled_hashes[lang]
- = ::search_name_hash (lang, language_lookup_name (lang).c_str ());
+ = ::search_name_hash (lang, language_lookup_name (lang));
m_demangled_hashes_p[lang] = true;
}
return m_demangled_hashes[lang];
}
/* Get the search name for searches in language LANG. */
- const std::string &language_lookup_name (language lang) const
+ const char *language_lookup_name (language lang) const
{
switch (lang)
{
case language_ada:
- return ada ().lookup_name ();
+ return ada ().lookup_name ().c_str ();
case language_cplus:
- return cplus ().lookup_name ();
+ return cplus ().lookup_name ().c_str ();
case language_d:
- return d ().lookup_name ();
+ return d ().lookup_name ().c_str ();
case language_go:
- return go ().lookup_name ();
+ return go ().lookup_name ().c_str ();
default:
- return m_name;
+ return m_name.data ();
}
}
symbol_name_match_type m_match_type;
bool m_completion_mode;
bool m_ignore_parameters;
- std::string m_name;
+ gdb::string_view m_name;
/* Language-specific info. These fields are filled lazily the first
time a lookup is done in the corresponding language. They're
projects / binutils-gdb.git / commitdiff