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2f408ecb92
This replaces most of the remaining ui_file_xstrdup calls with ui_file_as_string calls. Whenever a call was replaced, that led to a cascade of other necessary adjustments throughout, to make the code use std::string instead of raw pointers. And then whenever I added a std::string as member of a struct, I needed to adjust allocation/destruction of said struct to use new/delete instead of xmalloc/xfree. The stopping point was once gdb built again. These doesn't seem to be a way to reasonably split this out further. Maybe-not-obvious changes: - demangle_for_lookup returns a cleanup today. To get rid of that, and avoid unnecessary string dupping/copying, this introduces a demangle_result_storage type that the caller instantiates and passes to demangle_for_lookup. - Many methods returned a "char *" to indicate that the caller owns the memory and must free it. Those are switched to return a std::string instead. Methods that return a "view" into some internal string return a "const char *" instead. I.e., we only copy/allocate when necessary. gdb/ChangeLog: 2016-11-08 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_name_for_lookup, type_as_string): Use and return std::string. (type_as_string_and_cleanup): Delete. (ada_lookup_struct_elt_type): Use type_as_string. * ada-lang.h (ada_name_for_lookup): Now returns std::string. * ada-varobj.c (ada_varobj_scalar_image): Return a std::string. (ada_varobj_describe_child): Make 'child_name' and 'child_path_expr' parameters std::string pointers. (ada_varobj_describe_struct_child, ada_varobj_describe_ptr_child): Likewise, and use string_printf. (ada_varobj_describe_simple_array_child) (ada_varobj_describe_child): Likewise. (ada_varobj_get_name_of_child, ada_varobj_get_path_expr_of_child) (ada_varobj_get_value_image) (ada_varobj_get_value_of_array_variable) (ada_varobj_get_value_of_variable, ada_name_of_variable) (ada_name_of_child, ada_path_expr_of_child) (ada_value_of_variable): Now returns std::string. Use string_printf. (ada_value_of_child): Adjust. * break-catch-throw.c (check_status_exception_catchpoint): Adjust to use std::string. * breakpoint.c (watch_command_1): Adjust to use std::string. * c-lang.c (c_get_string): Adjust to use std::string. * c-typeprint.c (print_name_maybe_canonical): Use std::string. * c-varobj.c (varobj_is_anonymous_child): Use ==/!= std::string operators. (c_name_of_variable): Now returns a std::string. (c_describe_child): The 'cname' and 'cfull_expression' output parameters are now std::string pointers. Adjust. (c_name_of_child, c_path_expr_of_child, c_value_of_variable) (cplus_number_of_children): Adjust to use std::string and string_printf. (cplus_name_of_variable): Now returns a std::string. (cplus_describe_child): The 'cname' and 'cfull_expression' output parameters are now std::string pointers. Adjust. (cplus_name_of_child, cplus_path_expr_of_child) (cplus_value_of_variable): Now returns a std::string. * cp-abi.c (cplus_typename_from_type_info): Return std::string. * cp-abi.h (cplus_typename_from_type_info): Return std::string. (struct cp_abi_ops) <get_typename_from_type_info>: Return std::string. * cp-support.c (inspect_type): Use std::string. (cp_canonicalize_string_full, cp_canonicalize_string_no_typedefs) (cp_canonicalize_string): Return std::string and adjust. * cp-support.h (cp_canonicalize_string) (cp_canonicalize_string_no_typedefs, cp_canonicalize_string_full): Return std::string. * dbxread.c (read_dbx_symtab): Use std::string. * dwarf2read.c (dwarf2_canonicalize_name): Adjust to use std::string. * gdbcmd.h (lookup_struct_elt_type): Adjust to use std::string. * gnu-v3-abi.c (gnuv3_get_typeid): Use std::string. (gnuv3_get_typename_from_type_info): Return a std::string and adjust. (gnuv3_get_type_from_type_info): Adjust to use std::string. * guile/guile.c (gdbscm_execute_gdb_command): Adjust to use std::string. * infcmd.c (print_return_value_1): Adjust to use std::string. * linespec.c (find_linespec_symbols): Adjust to demangle_for_lookup API change. Use std::string. * mi/mi-cmd-var.c (print_varobj, mi_cmd_var_set_format) (mi_cmd_var_info_type, mi_cmd_var_info_path_expression) (mi_cmd_var_info_expression, mi_cmd_var_evaluate_expression) (mi_cmd_var_assign, varobj_update_one): Adjust to use std::string. * minsyms.c (lookup_minimal_symbol): Use std::string. * python/py-varobj.c (py_varobj_iter_next): Use new instead of XNEW. vitem->name is a std::string now, adjust. * rust-exp.y (convert_ast_to_type, convert_name): Adjust to use std::string. * stabsread.c (define_symbol): Adjust to use std::string. * symtab.c (demangle_for_lookup): Now returns 'const char *'. Add a demangle_result_storage parameter. Use it for storage. (lookup_symbol_in_language) (lookup_symbol_in_objfile_from_linkage_name): Adjust to new demangle_for_lookup API. * symtab.h (struct demangle_result_storage): New type. (demangle_for_lookup): Now returns 'const char *'. Add a demangle_result_storage parameter. * typeprint.c (type_to_string): Return std::string and use ui_file_as_string. * value.h (type_to_string): Change return type to std::string. * varobj-iter.h (struct varobj_item) <name>: Now a std::string. (varobj_iter_delete): Use delete instead of xfree. * varobj.c (create_child): Return std::string instead of char * in output parameter. (name_of_variable, name_of_child, my_value_of_variable): Return std::string instead of char *. (varobj_create, varobj_get_handle): Constify 'objname' parameter. Adjust to std::string fields. (varobj_get_objname): Return a const char * instead of a char *. (varobj_get_expression): Return a std::string. (varobj_list_children): Adjust to use std::string. (varobj_get_type): Return a std::string. (varobj_get_path_expr): Return a const char * instead of a char *. Adjust to std::string fields. (varobj_get_formatted_value, varobj_get_value): Return a std::string. (varobj_set_value): Change type of 'expression' parameter to std::string. Use std::string. (install_new_value): Use std::string. (delete_variable_1): Adjust to use std::string. (create_child): Change the 'name' parameter to a std::string reference. Swap it into the new item's name. (create_child_with_value): Swap item's name into the new child's name. Use string_printf. (new_variable): Use new instead of XNEW. (free_variable): Don't xfree fields that are now std::string. (name_of_variable, name_of_child): Now returns std::string. (value_of_root): Adjust to use std::string. (my_value_of_variable, varobj_value_get_print_value): Return and use std::string. (varobj_value_get_print_value): Adjust to use ui_file_as_string and std::string. * varobj.h (struct varobj) <name, path_expr, obj_name, print_value>: Now std::string's. <name_of_variable, name_of_child, path_expr_of_child, value_of_variable>: Return std::string. (varobj_create, varobj_get_handle): Constify 'objname' parameter. (varobj_get_objname): Return a const char * instead of a char *. (varobj_get_expression, varobj_get_type): Return a std::string. (varobj_get_path_expr): Return a const char * instead of a char *. (varobj_get_formatted_value, varobj_get_value): Return a std::string. (varobj_set_value): Constify 'expression' parameter. (varobj_value_get_print_value): Return a std::string.
166 lines
4.9 KiB
C++
166 lines
4.9 KiB
C++
/* Helper routines for C++ support in GDB.
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Copyright (C) 2002-2016 Free Software Foundation, Inc.
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Contributed by MontaVista Software.
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Namespace support contributed by David Carlton.
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This file is part of GDB.
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef CP_SUPPORT_H
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#define CP_SUPPORT_H
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/* We need this for 'domain_enum', alas... */
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#include "symtab.h"
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#include "vec.h"
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#include "gdb_vecs.h"
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#include "gdb_obstack.h"
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/* Opaque declarations. */
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struct symbol;
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struct block;
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struct objfile;
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struct type;
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struct demangle_component;
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struct using_direct;
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/* A string representing the name of the anonymous namespace used in GDB. */
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#define CP_ANONYMOUS_NAMESPACE_STR "(anonymous namespace)"
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/* The length of the string representing the anonymous namespace. */
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#define CP_ANONYMOUS_NAMESPACE_LEN 21
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/* The result of parsing a name. */
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struct demangle_parse_info
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{
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/* The memory used during the parse. */
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struct demangle_info *info;
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/* The result of the parse. */
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struct demangle_component *tree;
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/* Any temporary memory used during typedef replacement. */
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struct obstack obstack;
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};
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/* Functions from cp-support.c. */
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extern std::string cp_canonicalize_string (const char *string);
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extern std::string cp_canonicalize_string_no_typedefs (const char *string);
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typedef const char *(canonicalization_ftype) (struct type *, void *);
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extern std::string cp_canonicalize_string_full (const char *string,
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canonicalization_ftype *finder,
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void *data);
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extern char *cp_class_name_from_physname (const char *physname);
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extern char *method_name_from_physname (const char *physname);
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extern unsigned int cp_find_first_component (const char *name);
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extern unsigned int cp_entire_prefix_len (const char *name);
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extern char *cp_func_name (const char *full_name);
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extern char *cp_remove_params (const char *demangled_name);
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extern struct symbol **make_symbol_overload_list (const char *,
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const char *);
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extern struct symbol **make_symbol_overload_list_adl (struct type **arg_types,
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int nargs,
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const char *func_name);
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extern struct type *cp_lookup_rtti_type (const char *name,
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struct block *block);
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/* Functions/variables from cp-namespace.c. */
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extern int cp_is_in_anonymous (const char *symbol_name);
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extern void cp_scan_for_anonymous_namespaces (const struct symbol *symbol,
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struct objfile *objfile);
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extern struct block_symbol cp_lookup_symbol_nonlocal
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(const struct language_defn *langdef,
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const char *name,
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const struct block *block,
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const domain_enum domain);
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extern struct block_symbol
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cp_lookup_symbol_namespace (const char *the_namespace,
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const char *name,
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const struct block *block,
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const domain_enum domain);
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extern struct block_symbol cp_lookup_symbol_imports_or_template
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(const char *scope,
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const char *name,
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const struct block *block,
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const domain_enum domain);
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extern struct block_symbol
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cp_lookup_nested_symbol (struct type *parent_type,
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const char *nested_name,
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const struct block *block,
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const domain_enum domain);
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struct type *cp_lookup_transparent_type (const char *name);
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/* See description in cp-namespace.c. */
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struct type *cp_find_type_baseclass_by_name (struct type *parent_type,
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const char *name);
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/* Functions from cp-name-parser.y. */
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extern struct demangle_parse_info *cp_demangled_name_to_comp
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(const char *demangled_name, const char **errmsg);
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extern char *cp_comp_to_string (struct demangle_component *result,
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int estimated_len);
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extern void cp_demangled_name_parse_free (struct demangle_parse_info *);
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extern struct cleanup *make_cleanup_cp_demangled_name_parse_free
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(struct demangle_parse_info *);
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extern void cp_merge_demangle_parse_infos (struct demangle_parse_info *,
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struct demangle_component *,
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struct demangle_parse_info *);
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extern struct demangle_parse_info *cp_new_demangle_parse_info (void);
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/* The list of "maint cplus" commands. */
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extern struct cmd_list_element *maint_cplus_cmd_list;
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/* A wrapper for bfd_demangle. */
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char *gdb_demangle (const char *name, int options);
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/* Like gdb_demangle, but suitable for use as la_sniff_from_mangled_name. */
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int gdb_sniff_from_mangled_name (const char *mangled, char **demangled);
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#endif /* CP_SUPPORT_H */
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