/* Parser definitions for GDB.
- Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000 Free Software Foundation, Inc.
+
+ Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
+
Modified from expread.y by the Department of Computer Science at the
State University of New York at Buffalo.
#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 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 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_array,
tp_function,
tp_const,
- tp_volatile
+ tp_volatile,
+ tp_space_identifier
};
/* The stack can contain either an enum type_pieces or an int. */
union type_stack_elt
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 *);
/* During parsing of a C expression, the pointer to the next character
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 */