diff options
Diffstat (limited to 'contrib/gdb/gdb/expression.h')
| -rw-r--r-- | contrib/gdb/gdb/expression.h | 84 |
1 files changed, 61 insertions, 23 deletions
diff --git a/contrib/gdb/gdb/expression.h b/contrib/gdb/gdb/expression.h index 0fbab03..03b45c2 100644 --- a/contrib/gdb/gdb/expression.h +++ b/contrib/gdb/gdb/expression.h @@ -1,5 +1,7 @@ /* 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. @@ -109,10 +111,11 @@ enum exp_opcode 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. */ @@ -121,12 +124,13 @@ enum exp_opcode /* 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,...]. @@ -179,6 +183,12 @@ enum exp_opcode 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 @@ -251,7 +261,7 @@ enum exp_opcode 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 */ @@ -271,22 +281,31 @@ enum exp_opcode 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, @@ -300,7 +319,30 @@ enum exp_opcode 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 @@ -371,11 +413,7 @@ extern void print_expression (struct expression *, struct ui_file *); 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) */ |
