* README-vms: Delete.

[deliverable/binutils-gdb.git] / gdb / parser-defs.h

diff --git a/gdb/parser-defs.h b/gdb/parser-defs.h
index 5b2e47b66e1fb2e296d5ed57238b6cf6d3d59234..43a07c37466b6f1f9bcd9599dd15e0813c706876 100644 (file)
--- a/gdb/parser-defs.h
+++ b/gdb/parser-defs.h
@@ -28,6 +28,8 @@
 
 #include "doublest.h"
 
+struct block;
+
 extern struct expression *expout;
 extern int expout_size;
 extern int expout_ptr;
@@ -37,6 +39,12 @@ extern int expout_ptr;
 
 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;
@@ -73,6 +81,14 @@ struct symtoken
     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
@@ -143,13 +159,30 @@ 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.
 
@@ -200,10 +233,49 @@ struct op_print
     int right_assoc;
   };
 
-/* The generic method for targets to specify how their registers are
-   named.  The mapping can be derived from two sources: REGISTER_NAME;
-   and builtin regs. */
+/* 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 */