/* Definitions for expressions stored in reversed prefix form, for GDB.
- Copyright 1986, 1989, 1992, 1994, 2000 Free Software Foundation, Inc.
+
+ Copyright 1986, 1989, 1992, 1994, 2000, 2003 Free Software
+ Foundation, Inc.
This file is part of GDB.
#include "symtab.h" /* Needed for "struct block" type. */
+#include "doublest.h" /* Needed for DOUBLEST. */
/* Definitions for saved C expressions. */
the second operand with itself that many times. */
BINOP_CONCAT,
- /* For Chill and Pascal. */
+ /* For (the deleted) Chill and Pascal. */
BINOP_IN, /* Returns 1 iff ARG1 IN ARG2. */
- /* This is the "colon operator" used various places in Chill. */
+ /* This is the "colon operator" used various places in (the
+ deleted) Chill. */
BINOP_RANGE,
/* This must be the highest BINOP_ value, for expprint.c. */
/* Operates on three values computed by following subexpressions. */
TERNOP_COND, /* ?: */
- /* A sub-string/sub-array. Chill syntax: OP1(OP2:OP3).
- Return elements OP2 through OP3 of OP1. */
+ /* A sub-string/sub-array. (the deleted) Chill syntax:
+ OP1(OP2:OP3). Return elements OP2 through OP3 of OP1. */
TERNOP_SLICE,
- /* A sub-string/sub-array. Chill syntax: OP1(OP2 UP OP3).
- Return OP3 elements of OP1, starting with element OP2. */
+ /* A sub-string/sub-array. (The deleted) Chill syntax: OP1(OP2 UP
+ OP3). Return OP3 elements of OP1, starting with element
+ OP2. */
TERNOP_SLICE_COUNT,
/* Multidimensional subscript operator, such as Modula-2 x[a,b,...].
making three exp_elements. */
OP_FUNCALL,
+ /* OP_OBJC_MSGCALL is followed by a string in the next exp_element and then an
+ integer. The string is the selector string. The integer is the number
+ of arguments to the message call. That many plus one values are used,
+ the first one being the object pointer. This is an Objective C message */
+ OP_OBJC_MSGCALL,
+
/* This is EXACTLY like OP_FUNCALL but is semantically different.
In F77, array subscript expressions, substring expressions
and function calls are all exactly the same syntactically. They may
UNOP_ODD,
UNOP_TRUNC,
- /* Chill builtin functions. */
+ /* (The deleted) Chill builtin functions. */
UNOP_LOWER, UNOP_UPPER, UNOP_LENGTH, UNOP_CARD, UNOP_CHMAX, UNOP_CHMIN,
OP_BOOL, /* Modula-2 builtin BOOLEAN type */
STRUCTOP_STRUCT,
STRUCTOP_PTR,
- /* C++ */
- /* OP_THIS is just a placeholder for the class instance variable.
+ /* C++: OP_THIS is just a placeholder for the class instance variable.
It just comes in a tight (OP_THIS, OP_THIS) pair. */
OP_THIS,
+ /* Objective-C: OP_OBJC_SELF is just a placeholder for the class instance
+ variable. It just comes in a tight (OP_OBJC_SELF, OP_OBJC_SELF) pair. */
+ OP_OBJC_SELF,
+
+ /* Objective C: "@selector" pseudo-operator */
+ OP_OBJC_SELECTOR,
+
/* OP_SCOPE surrounds a type name and a field name. The type
name is encoded as one element, but the field name stays as
a string, which, of course, is variable length. */
OP_SCOPE,
- /* Used to represent named structure field values in brace initializers
- (or tuples as they are called in Chill).
- The gcc C syntax is NAME:VALUE or .NAME=VALUE, the Chill syntax is
- .NAME:VALUE. Multiple labels (as in the Chill syntax
- .NAME1,.NAME2:VALUE) is represented as if it were
- .NAME1:(.NAME2:VALUE) (though that is not valid Chill syntax).
+ /* Used to represent named structure field values in brace
+ initializers (or tuples as they are called in (the deleted)
+ Chill).
+
+ The gcc C syntax is NAME:VALUE or .NAME=VALUE, the (the
+ deleted) Chill syntax is .NAME:VALUE. Multiple labels (as in
+ the (the deleted) Chill syntax .NAME1,.NAME2:VALUE) is
+ represented as if it were .NAME1:(.NAME2:VALUE) (though that is
+ not valid (the deleted) Chill syntax).
The NAME is represented as for STRUCTOP_STRUCT; VALUE follows. */
OP_LABELED,
OP_NAME,
/* An unparsed expression. Used for Scheme (for now at least) */
- OP_EXPRSTRING
+ OP_EXPRSTRING,
+
+ /* An Objective C Foundation Class NSString constant */
+ OP_OBJC_NSSTRING,
+
+ /* First extension operator. Individual language modules define
+ extra operators they need as constants with values
+ OP_LANGUAGE_SPECIFIC0 + k, for k >= 0, using a separate
+ enumerated type definition:
+ enum foo_extension_operator {
+ BINOP_MOGRIFY = OP_EXTENDED0,
+ BINOP_FROB,
+ ...
+ }; */
+ OP_EXTENDED0,
+
+ /* Last possible extension operator. Defined to provide an
+ explicit and finite number of extended operators. */
+ OP_EXTENDED_LAST = 0xff
+ /* NOTE: Eventually, we expect to convert to an object-oriented
+ formulation for expression operators that does away with the
+ need for these extension operators, and indeed for this
+ entire enumeration type. Therefore, consider the OP_EXTENDED
+ definitions to be a temporary measure. */
};
union exp_element
/* From parse.c */
-extern struct expression *parse_expression PARAMS ((char *));
+extern struct expression *parse_expression (char *);
-extern struct expression *parse_exp_1 PARAMS ((char **, struct block *, int));
+extern struct expression *parse_exp_1 (char **, struct block *, int);
/* The innermost context required by the stack and register variables
we've encountered so far. To use this, set it to NULL, then call
};
extern struct value *evaluate_subexp_standard
- PARAMS ((struct type *, struct expression *, int *, enum noside));
+ (struct type *, struct expression *, int *, enum noside);
/* From expprint.c */
extern void print_expression (struct expression *, struct ui_file *);
-extern char *op_string PARAMS ((enum exp_opcode));
+extern char *op_string (enum exp_opcode);
-extern void dump_prefix_expression (struct expression *,
- struct ui_file *,
- char *);
-extern void dump_postfix_expression (struct expression *,
- struct ui_file *,
- char *);
+extern void dump_raw_expression (struct expression *, struct ui_file *, char *);
+extern void dump_prefix_expression (struct expression *, struct ui_file *);
#endif /* !defined (EXPRESSION_H) */
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