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69d340c684
While working on the parser code, I noticed that yyerror is exported
from each parser. It is used by this code in parse.c:
TRY
{
if (lang->la_parser (&ps))
lang->la_error (NULL);
}
However, it seems to me that la_error will never be called here,
because in every case, la_parser throws an exception on error -- each
implementation of yyerror just calls error.
So, this patch removes la_error and makes all the yyerror functions
static. This is handy primarily because it makes it simpler to make
the expression parsers pure.
Tested by the buildbot.
gdb/ChangeLog
2018-06-18 Tom Tromey <tom@tromey.com>
* rust-lang.h (rust_yyerror): Don't declare.
* rust-lang.c (rust_language_defn): Update.
* rust-exp.y (yyerror): Now static.
* parse.c (parse_exp_in_context_1): Update.
* p-lang.h (p_yyerror): Don't declare.
* p-lang.c (p_language_defn): Update.
* p-exp.y (yyerror): Now static.
* opencl-lang.c (opencl_language_defn): Update.
* objc-lang.c (objc_language_defn): Update.
* m2-lang.h (m2_yyerror): Don't declare.
* m2-lang.c (m2_language_defn): Update.
* m2-exp.y (yyerror): Now static.
* language.h (struct language_defn) <la_error>: Remove.
* language.c (unk_lang_error): Remove.
(unknown_language_defn, auto_language_defn): Remove.
* go-lang.h (go_yyerror): Don't declare.
* go-lang.c (go_language_defn): Update.
* go-exp.y (yyerror): Now static.
* f-lang.h (f_yyerror): Don't declare.
* f-lang.c (f_language_defn): Update.
* f-exp.y (yyerror): Now static.
* d-lang.h (d_yyerror): Don't declare.
* d-lang.c (d_language_defn): Update.
* d-exp.y (yyerror): Now static.
* c-lang.h (c_yyerror): Don't declare.
* c-lang.c (c_language_defn, cplus_language_defn)
(asm_language_defn, minimal_language_defn): Update.
* c-exp.y (yyerror): Now static.
* ada-lang.h (ada_yyerror): Don't declare.
* ada-lang.c (ada_language_defn): Update.
* ada-exp.y (yyerror): Now static.
176 lines
5.2 KiB
C++
176 lines
5.2 KiB
C++
/* C language support definitions for GDB, the GNU debugger.
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Copyright (C) 1992-2018 Free Software Foundation, Inc.
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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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#if !defined (C_LANG_H)
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#define C_LANG_H 1
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struct ui_file;
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struct language_arch_info;
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struct type_print_options;
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struct parser_state;
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#include "value.h"
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#include "macroexp.h"
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#include "parser-defs.h"
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#include "common/enum-flags.h"
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/* The various kinds of C string and character. Note that these
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values are chosen so that they may be or'd together in certain
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ways. */
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enum c_string_type_values
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{
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/* An ordinary string: "value". */
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C_STRING = 0,
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/* A wide string: L"value". */
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C_WIDE_STRING = 1,
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/* A 16-bit Unicode string: u"value". */
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C_STRING_16 = 2,
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/* A 32-bit Unicode string: U"value". */
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C_STRING_32 = 3,
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/* An ordinary char: 'v'. This can also be or'd with one of the
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above to form the corresponding CHAR value from a STRING
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value. */
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C_CHAR = 4,
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/* A wide char: L'v'. */
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C_WIDE_CHAR = 5,
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/* A 16-bit Unicode char: u'v'. */
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C_CHAR_16 = 6,
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/* A 32-bit Unicode char: U'v'. */
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C_CHAR_32 = 7
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};
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DEF_ENUM_FLAGS_TYPE (enum c_string_type_values, c_string_type);
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/* Defined in c-exp.y. */
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extern int c_parse (struct parser_state *);
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extern int c_parse_escape (const char **, struct obstack *);
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/* Defined in c-typeprint.c */
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extern void c_print_type (struct type *, const char *,
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struct ui_file *, int, int,
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const struct type_print_options *);
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/* Print a type but allow the precise language to be specified. */
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extern void c_print_type (struct type *, const char *,
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struct ui_file *, int, int,
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enum language,
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const struct type_print_options *);
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extern void c_print_typedef (struct type *,
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struct symbol *,
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struct ui_file *);
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extern void c_val_print (struct type *,
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int, CORE_ADDR,
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struct ui_file *, int,
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struct value *,
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const struct value_print_options *);
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extern void c_value_print (struct value *, struct ui_file *,
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const struct value_print_options *);
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/* These are in c-lang.c: */
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extern struct value *evaluate_subexp_c (struct type *expect_type,
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struct expression *exp,
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int *pos,
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enum noside noside);
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extern void c_printchar (int, struct type *, struct ui_file *);
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extern void c_printstr (struct ui_file * stream,
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struct type *elttype,
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const gdb_byte *string,
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unsigned int length,
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const char *user_encoding,
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int force_ellipses,
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const struct value_print_options *options);
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extern void c_language_arch_info (struct gdbarch *gdbarch,
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struct language_arch_info *lai);
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extern const struct exp_descriptor exp_descriptor_c;
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extern void c_emit_char (int c, struct type *type,
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struct ui_file *stream, int quoter);
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extern const struct op_print c_op_print_tab[];
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extern gdb::unique_xmalloc_ptr<char> c_watch_location_expression
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(struct type *type, CORE_ADDR addr);
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/* These are in c-typeprint.c: */
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extern void c_type_print_base (struct type *, struct ui_file *,
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int, int, const struct type_print_options *);
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/* These are in cp-valprint.c */
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extern void cp_print_class_member (const gdb_byte *, struct type *,
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struct ui_file *, const char *);
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extern void cp_print_value_fields (struct type *, struct type *,
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LONGEST, CORE_ADDR,
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struct ui_file *, int,
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struct value *,
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const struct value_print_options *,
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struct type **, int);
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extern void cp_print_value_fields_rtti (struct type *,
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const gdb_byte *, LONGEST, CORE_ADDR,
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struct ui_file *, int,
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struct value *,
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const struct value_print_options *,
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struct type **, int);
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extern int cp_is_vtbl_ptr_type (struct type *);
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extern int cp_is_vtbl_member (struct type *);
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/* These are in c-valprint.c. */
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extern int c_textual_element_type (struct type *, char);
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/* Create a new instance of the C compiler and return it. The new
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compiler is owned by the caller and must be freed using the destroy
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method. This function never returns NULL, but rather throws an
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exception on failure. This is suitable for use as the
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la_get_compile_instance language method. */
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extern struct compile_instance *c_get_compile_context (void);
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/* This takes the user-supplied text and returns a new bit of code to
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compile.
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This is used as the la_compute_program language method; see that
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for a description of the arguments. */
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extern std::string c_compute_program (struct compile_instance *inst,
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const char *input,
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struct gdbarch *gdbarch,
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const struct block *expr_block,
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CORE_ADDR expr_pc);
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#endif /* !defined (C_LANG_H) */
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