/* Parser definitions for GDB.
- Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000 Free Software Foundation, Inc.
+
+ Copyright (C) 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2002, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
+
Modified from expread.y by the Department of Computer Science at the
State University of New York at Buffalo.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (PARSER_DEFS_H)
#define PARSER_DEFS_H 1
#include "doublest.h"
-struct std_regs
- {
- char *name;
- int regnum;
- };
-
-extern struct std_regs *std_regs;
-extern unsigned num_std_regs;
+struct block;
extern struct expression *expout;
extern int expout_size;
extern int expout_ptr;
+#define parse_gdbarch (expout->gdbarch)
+#define parse_language (expout->language_defn)
+
/* If this is nonzero, this block is used as the lexical context
for symbol names. */
extern struct block *expression_context_block;
+/* If expression_context_block is non-zero, then this is the PC within
+ the block that we want to evaluate expressions at. When debugging
+ C or C++ code, we use this to find the exact line we're at, and
+ then look up the macro definitions active at that point. */
+extern CORE_ADDR expression_context_pc;
+
/* The innermost context required by the stack and register variables
we've encountered so far. */
extern struct block *innermost_block;
int length;
};
+struct typed_stoken
+ {
+ /* A language-specific type field. */
+ int type;
+ /* Pointer to first byte of char-string or first bit of bit-string */
+ char *ptr;
+ /* Length of string in bytes for char-string or bits for bit-string */
+ int length;
+ };
+
+struct stoken_vector
+ {
+ int len;
+ struct typed_stoken *tokens;
+ };
+
struct ttype
{
struct stoken stoken;
int is_a_field_of_this;
};
+struct objc_class_str
+ {
+ struct stoken stoken;
+ struct type *type;
+ int class;
+ };
+
+
/* For parsing of complicated types.
An array should be preceded in the list by the size of the array. */
enum type_pieces
{
- tp_end = -1, tp_pointer, tp_reference, tp_array, tp_function
+ tp_end = -1,
+ tp_pointer,
+ tp_reference,
+ tp_array,
+ tp_function,
+ tp_const,
+ tp_volatile,
+ tp_space_identifier
};
/* The stack can contain either an enum type_pieces or an int. */
union type_stack_elt
extern void write_exp_elt_dblcst (DOUBLEST);
+extern void write_exp_elt_decfloatcst (gdb_byte *);
+
extern void write_exp_elt_type (struct type *);
extern void write_exp_elt_intern (struct internalvar *);
extern void write_exp_string (struct stoken);
+void write_exp_string_vector (int type, struct stoken_vector *vec);
+
extern void write_exp_bitstring (struct stoken);
extern void write_exp_elt_block (struct block *);
-extern void write_exp_msymbol (struct minimal_symbol *,
- struct type *, struct type *);
+extern void write_exp_elt_objfile (struct objfile *objfile);
+
+extern void write_exp_msymbol (struct minimal_symbol *);
extern void write_dollar_variable (struct stoken str);
-extern struct symbol *parse_nested_classes_for_hpacc (char *, int, char **,
- int *, char **);
+extern void mark_struct_expression (void);
extern char *find_template_name_end (char *);
extern void push_type_int (int);
+extern void push_type_address_space (char *);
+
extern enum type_pieces pop_type (void);
extern int pop_type_int (void);
extern int length_of_subexp (struct expression *, int);
+extern int dump_subexp (struct expression *, struct ui_file *, int);
+
+extern int dump_subexp_body_standard (struct expression *,
+ struct ui_file *, int);
+
+extern void operator_length (struct expression *, int, int *, int *);
+
+extern void operator_length_standard (struct expression *, int, int *, int *);
+
+extern char *op_name_standard (enum exp_opcode);
+
extern struct type *follow_types (struct type *);
+extern void null_post_parser (struct expression **, int);
+
/* During parsing of a C expression, the pointer to the next character
is in this variable. */
extern char *lexptr;
+/* After a token has been recognized, this variable points to it.
+ Currently used only for error reporting. */
+extern char *prev_lexptr;
+
/* Tokens that refer to names do so with explicit pointer and length,
so they can share the storage that lexptr is parsing.
int right_assoc;
};
-/* The generic method for targets to specify how their registers are
- named. The mapping can be derived from three sources:
- REGISTER_NAME; std_regs; or a target specific alias hook. */
+/* Information needed to print, prefixify, and evaluate expressions for
+ a given language. */
+
+struct exp_descriptor
+ {
+ /* Print subexpression. */
+ void (*print_subexp) (struct expression *, int *, struct ui_file *,
+ enum precedence);
+
+ /* Returns number of exp_elements needed to represent an operator and
+ the number of subexpressions it takes. */
+ void (*operator_length) (struct expression*, int, int*, int *);
+
+ /* Name of this operator for dumping purposes. */
+ char *(*op_name) (enum exp_opcode);
+
+ /* Dump the rest of this (prefix) expression after the operator
+ itself has been printed. See dump_subexp_body_standard in
+ (expprint.c). */
+ int (*dump_subexp_body) (struct expression *, struct ui_file *, int);
+
+ /* Evaluate an expression. */
+ struct value *(*evaluate_exp) (struct type *, struct expression *,
+ int *, enum noside);
+ };
+
+
+/* Default descriptor containing standard definitions of all
+ elements. */
+extern const struct exp_descriptor exp_descriptor_standard;
+
+/* Functions used by language-specific extended operators to (recursively)
+ print/dump subexpressions. */
+
+extern void print_subexp (struct expression *, int *, struct ui_file *,
+ enum precedence);
+
+extern void print_subexp_standard (struct expression *, int *,
+ struct ui_file *, enum precedence);
+
+/* Function used to avoid direct calls to fprintf
+ in the code generated by the bison parser. */
-extern int target_map_name_to_register (char *, int);
+extern void parser_fprintf (FILE *, const char *, ...) ATTR_FORMAT (printf, 2 ,3);
#endif /* PARSER_DEFS_H */
projects / deliverable / binutils-gdb.git / blobdiff