[deliverable/binutils-gdb.git] / gdb / std-operator.def

/* Standard language operator definitions for GDB, the GNU debugger.

   Copyright (C) 1986-2019 Free Software Foundation, Inc.

   This file is part of GDB.

   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 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   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, see <http://www.gnu.org/licenses/>.  */

/* Used when it's necessary to pass an opcode which will be ignored,
   or to catch uninitialized values.  */
OP (OP_NULL)

/* BINOP_... operate on two values computed by following subexpressions,
replacing them by one result value.  They take no immediate arguments.  */

OP (BINOP_ADD)			/* + */
OP (BINOP_SUB)			/* - */
OP (BINOP_MUL)			/* * */
OP (BINOP_DIV)			/* / */
OP (BINOP_REM)			/* % */
OP (BINOP_MOD)			/* mod (Knuth 1.2.4) */
OP (BINOP_LSH)			/* << */
OP (BINOP_RSH)			/* >> */
OP (BINOP_LOGICAL_AND)		/* && */
OP (BINOP_LOGICAL_OR)		/* || */
OP (BINOP_BITWISE_AND)		/* & */
OP (BINOP_BITWISE_IOR)		/* | */
OP (BINOP_BITWISE_XOR)		/* ^ */
OP (BINOP_EQUAL)		/* == */
OP (BINOP_NOTEQUAL)		/* != */
OP (BINOP_LESS)			/* < */
OP (BINOP_GTR)			/* > */
OP (BINOP_LEQ)			/* <= */
OP (BINOP_GEQ)			/* >= */
OP (BINOP_REPEAT)		/* @ */
OP (BINOP_ASSIGN)		/* = */
OP (BINOP_COMMA)		/* , */
OP (BINOP_SUBSCRIPT)		/* x[y] */
OP (BINOP_EXP)			/* Exponentiation */

/* C++.  */

OP (BINOP_MIN)			/* <? */
OP (BINOP_MAX)			/* >? */

/* STRUCTOP_MEMBER is used for pointer-to-member constructs.
   X .  * Y translates into X STRUCTOP_MEMBER Y.  */
OP (STRUCTOP_MEMBER)

/* STRUCTOP_MPTR is used for pointer-to-member constructs
   when X is a pointer instead of an aggregate.  */
OP (STRUCTOP_MPTR)

/* TYPE_INSTANCE is used when the user specifies a specific
   type instantiation for overloaded methods/functions.

   The format is:
   TYPE_INSTANCE num_types type0 ... typeN num_types TYPE_INSTANCE.  */
OP (TYPE_INSTANCE)

/* end of C++.  */

/* For Modula-2 integer division DIV.  */
OP (BINOP_INTDIV)

/* +=, -=, *=, and so on.  The following exp_element is another opcode,
   a BINOP_, saying how to modify.  Then comes another BINOP_ASSIGN_MODIFY,
   making three exp_elements in total.  */
OP (BINOP_ASSIGN_MODIFY)

/* Modula-2 standard (binary) procedures.  */
OP (BINOP_VAL)

/* Concatenate two operands, such as character strings or bitstrings.
   If the first operand is a integer expression, then it means concatenate
   the second operand with itself that many times.  */
OP (BINOP_CONCAT)

/* This must be the highest BINOP_ value, for expprint.c.  */
OP (BINOP_END)

/* Operates on three values computed by following subexpressions.  */
OP (TERNOP_COND)		/* ?: */

/* A sub-string/sub-array.  Ada syntax: OP1(OP2..OP3).  Return
   elements OP2 through OP3 of OP1.  */
OP (TERNOP_SLICE)

/* Multidimensional subscript operator, such as Modula-2 x[a,b,...].
   The dimensionality is encoded in the operator, like the number of
   function arguments in OP_FUNCALL, I.E. <OP><dimension><OP>.
   The value of the first following subexpression is subscripted
   by each of the next following subexpressions, one per dimension.  */
OP (MULTI_SUBSCRIPT)

/* The OP_... series take immediate following arguments.
   After the arguments come another OP_... (the same one)
   so that the grouping can be recognized from the end.  */

/* OP_LONG is followed by a type pointer in the next exp_element
   and the long constant value in the following exp_element.
   Then comes another OP_LONG.
   Thus, the operation occupies four exp_elements.  */
OP (OP_LONG)

/* OP_FLOAT is similar but takes a floating-point constant encoded in
   the target format for the given type instead of a long.  */
OP (OP_FLOAT)

/* OP_VAR_VALUE takes one struct block * in the following element,
   and one struct symbol * in the following exp_element, followed
   by another OP_VAR_VALUE, making four exp_elements.  If the
   block is non-NULL, evaluate the symbol relative to the
   innermost frame executing in that block; if the block is NULL
   use the selected frame.  */
OP (OP_VAR_VALUE)

/* OP_VAR_ENTRY_VALUE takes one struct symbol * in the following element,
   followed by another OP_VAR_ENTRY_VALUE, making three exp_elements.
   somename@entry may mean parameter value as present at the entry of the
   current function.  Implemented via DW_OP_entry_value.  */
OP (OP_VAR_ENTRY_VALUE)

/* OP_VAR_MSYM_VALUE takes one struct objfile * in the following
   element, and one struct minimal_symbol * in the following
   exp_element, followed by another OP_VAR_MSYM_VALUE, making four
   exp_elements.  */
OP (OP_VAR_MSYM_VALUE)

/* OP_LAST is followed by an integer in the next exp_element.
   The integer is zero for the last value printed,
   or it is the absolute number of a history element.
   With another OP_LAST at the end, this makes three exp_elements.  */
OP (OP_LAST)

/* OP_REGISTER is followed by a string in the next exp_element.
   This is the name of a register to fetch.  */
OP (OP_REGISTER)

/* OP_INTERNALVAR is followed by an internalvar ptr in the next
   exp_element.  With another OP_INTERNALVAR at the end, this
   makes three exp_elements.  */
OP (OP_INTERNALVAR)

/* OP_FUNCALL is followed by an integer in the next exp_element.
   The integer is the number of args to the function call.
   That many plus one values from following subexpressions
   are used, the first one being the function.
   The integer is followed by a repeat of OP_FUNCALL,
   making three exp_elements.  */
OP (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 (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 only be disambiguated at runtime.  Thus this operator,
   which indicates that we have found something of the form
   <name> ( <stuff> ).  */
OP (OP_F77_UNDETERMINED_ARGLIST)

/* OP_COMPLEX takes a type in the following element, followed by another
   OP_COMPLEX, making three exp_elements.  It is followed by two double
   args, and converts them into a complex number of the given type.  */
OP (OP_COMPLEX)

/* OP_STRING represents a string constant.
   Its format is the same as that of a STRUCTOP, but the string
   data is just made into a string constant when the operation
   is executed.  */
OP (OP_STRING)

/* OP_ARRAY creates an array constant out of the following subexpressions.
   It is followed by two exp_elements, the first containing an integer
   that is the lower bound of the array and the second containing another
   integer that is the upper bound of the array.  The second integer is
   followed by a repeat of OP_ARRAY, making four exp_elements total.
   The bounds are used to compute the number of following subexpressions
   to consume, as well as setting the bounds in the created array constant.
   The type of the elements is taken from the type of the first subexp,
   and they must all match.  */
OP (OP_ARRAY)

/* UNOP_CAST is followed by a type pointer in the next exp_element.
   With another UNOP_CAST at the end, this makes three exp_elements.
   It casts the value of the following subexpression.  */
OP (UNOP_CAST)

/* Like UNOP_CAST, but the type is a subexpression.  */
OP (UNOP_CAST_TYPE)

/* The C++ dynamic_cast operator.  */
OP (UNOP_DYNAMIC_CAST)

/* The C++ reinterpret_cast operator.  */
OP (UNOP_REINTERPRET_CAST)

/* UNOP_MEMVAL is followed by a type pointer in the next exp_element
   With another UNOP_MEMVAL at the end, this makes three exp_elements.
   It casts the contents of the word addressed by the value of the
   following subexpression.  */
OP (UNOP_MEMVAL)

/* Like UNOP_MEMVAL, but the type is supplied as a subexpression.  */
OP (UNOP_MEMVAL_TYPE)

/* UNOP_... operate on one value from a following subexpression
   and replace it with a result.  They take no immediate arguments.  */

OP (UNOP_NEG)			/* Unary - */
OP (UNOP_LOGICAL_NOT)		/* Unary ! */
OP (UNOP_COMPLEMENT)		/* Unary ~ */
OP (UNOP_IND)			/* Unary * */
OP (UNOP_ADDR)			/* Unary & */
OP (UNOP_PREINCREMENT)		/* ++ before an expression */
OP (UNOP_POSTINCREMENT)		/* ++ after an expression */
OP (UNOP_PREDECREMENT)		/* -- before an expression */
OP (UNOP_POSTDECREMENT)		/* -- after an expression */
OP (UNOP_SIZEOF)		/* Unary sizeof (followed by expression) */
OP (UNOP_ALIGNOF)		/* Unary alignof (followed by expression) */

OP (UNOP_PLUS)			/* Unary plus */

OP (UNOP_CAP)			/* Modula-2 standard (unary) procedures */
OP (UNOP_CHR)
OP (UNOP_ORD)
OP (UNOP_ABS)
OP (UNOP_FLOAT)
OP (UNOP_HIGH)
OP (UNOP_MAX)
OP (UNOP_MIN)
OP (UNOP_ODD)
OP (UNOP_TRUNC)

OP (OP_BOOL)			/* Modula-2 builtin BOOLEAN type */
OP (OP_M2_STRING)		/* Modula-2 string constants */

/* STRUCTOP_... operate on a value from a following subexpression
   by extracting a structure component specified by a string
   that appears in the following exp_elements (as many as needed).
   STRUCTOP_STRUCT is used for "." and STRUCTOP_PTR for "->".
   They differ only in the error message given in case the value is
   not suitable or the structure component specified is not found.

   The length of the string follows the opcode, followed by
   BYTES_TO_EXP_ELEM(length) elements containing the data of the
   string, followed by the length again and the opcode again.  */

OP (STRUCTOP_STRUCT)
OP (STRUCTOP_PTR)

/* Anonymous field access, e.g. "foo.3".  Used in Rust.  */
OP (STRUCTOP_ANONYMOUS)

/* C++: OP_THIS is just a placeholder for the class instance variable.
   It just comes in a tight (OP_THIS, OP_THIS) pair.  */
OP (OP_THIS)

/* Objective C: "@selector" pseudo-operator.  */
OP (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 (OP_SCOPE)

/* OP_FUNC_STATIC_VAR refers to a function local static variable.  The
   function is taken from the following subexpression.  The length of
   the variable name as a string follows the opcode, followed by
   BYTES_TO_EXP_ELEM(length) elements containing the data of the
   string, followed by the length again and the opcode again.

   Note this is used by C++, but not C.  The C parser handles local
   static variables in the parser directly.  Also, this is only used
   in C++ if the function/method name is not quoted, like e.g.:

     p S:method()::var
     p S:method() const::var

   If the function/method is quoted like instead:

     p 'S:method() const'::var

   then the C-specific handling directly in the parser takes over (see
   block/variable productions).

   Also, if the whole function+var is quoted like this:

     p 'S:method() const::var'

   then the whole quoted expression is interpreted as a single symbol
   name and we don't use OP_FUNC_STATIC_VAR either.  In that case, the
   C++-specific symbol lookup routines take care of the
   function-local-static search.  */
OP (OP_FUNC_STATIC_VAR)

/* OP_TYPE is for parsing types, and used with the "ptype" command
   so we can look up types that are qualified by scope, either with
   the GDB "::" operator, or the Modula-2 '.' operator.  */
OP (OP_TYPE)

/* An un-looked-up identifier.  */
OP (OP_NAME)

/* An Objective C Foundation Class NSString constant.  */
OP (OP_OBJC_NSSTRING)

/* An array range operator (in Fortran 90, for "exp:exp", "exp:",
   ":exp" and ":").  */
OP (OP_RANGE)

/* OP_ADL_FUNC specifies that the function is to be looked up in an
   Argument Dependent manner (Koenig lookup).  */
OP (OP_ADL_FUNC)

/* The typeof operator.  This has one expression argument, which is
   evaluated solely for its type.  */
OP (OP_TYPEOF)

/* The decltype operator.  This has one expression argument, which is
   evaluated solely for its type.  This is similar to typeof, but has
   slight different semantics.  */
OP (OP_DECLTYPE)

/* The typeid operator.  This has one expression argument.  */
OP (OP_TYPEID)

/* This is used for the Rust [expr; N] form of array construction.  It
   takes two expression arguments.  */
OP (OP_RUST_ARRAY)
Commit	Line	Data
56c12414 JK	1	/* Standard language operator definitions for GDB, the GNU debugger.
56c12414 JK	2
42a4f53d	3	Copyright (C) 1986-2019 Free Software Foundation, Inc.
56c12414 JK	4
	5	This file is part of GDB.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 3 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	19
	20	/* Used when it's necessary to pass an opcode which will be ignored,
	21	or to catch uninitialized values. */
	22	OP (OP_NULL)
	23
	24	/* BINOP_... operate on two values computed by following subexpressions,
	25	replacing them by one result value. They take no immediate arguments. */
	26
	27	OP (BINOP_ADD) /* + */
	28	OP (BINOP_SUB) /* - */
	29	OP (BINOP_MUL) /* * */
	30	OP (BINOP_DIV) /* / */
	31	OP (BINOP_REM) /* % */
	32	OP (BINOP_MOD) /* mod (Knuth 1.2.4) */
	33	OP (BINOP_LSH) /* << */
	34	OP (BINOP_RSH) /* >> */
	35	OP (BINOP_LOGICAL_AND) /* && */
	36	OP (BINOP_LOGICAL_OR) /* \|\| */
	37	OP (BINOP_BITWISE_AND) /* & */
	38	OP (BINOP_BITWISE_IOR) /* \| */
	39	OP (BINOP_BITWISE_XOR) /* ^ */
	40	OP (BINOP_EQUAL) /* == */
	41	OP (BINOP_NOTEQUAL) /* != */
	42	OP (BINOP_LESS) /* < */
	43	OP (BINOP_GTR) /* > */
	44	OP (BINOP_LEQ) /* <= */
	45	OP (BINOP_GEQ) /* >= */
	46	OP (BINOP_REPEAT) /* @ */
	47	OP (BINOP_ASSIGN) /* = */
	48	OP (BINOP_COMMA) /* , */
	49	OP (BINOP_SUBSCRIPT) /* x[y] */
	50	OP (BINOP_EXP) /* Exponentiation */
	51
	52	/* C++. */
	53
	54	OP (BINOP_MIN) /* <? */
	55	OP (BINOP_MAX) /* >? */
	56
	57	/* STRUCTOP_MEMBER is used for pointer-to-member constructs.
	58	X . * Y translates into X STRUCTOP_MEMBER Y. */
	59	OP (STRUCTOP_MEMBER)
	60
	61	/* STRUCTOP_MPTR is used for pointer-to-member constructs
	62	when X is a pointer instead of an aggregate. */
	63	OP (STRUCTOP_MPTR)
	64
	65	/* TYPE_INSTANCE is used when the user specifies a specific
	66	type instantiation for overloaded methods/functions.
	67
68	The format is:
69	TYPE_INSTANCE num_types type0 ... typeN num_types TYPE_INSTANCE. */
70	OP (TYPE_INSTANCE)
71
72	/* end of C++. */
73
74	/* For Modula-2 integer division DIV. */
75	OP (BINOP_INTDIV)
76
77	/* +=, -=, *=, and so on. The following exp_element is another opcode,
78	a BINOP_, saying how to modify. Then comes another BINOP_ASSIGN_MODIFY,
79	making three exp_elements in total. */
80	OP (BINOP_ASSIGN_MODIFY)
81
82	/* Modula-2 standard (binary) procedures. */
83	OP (BINOP_VAL)
84
85	/* Concatenate two operands, such as character strings or bitstrings.
86	If the first operand is a integer expression, then it means concatenate
87	the second operand with itself that many times. */
88	OP (BINOP_CONCAT)
89
56c12414 JK	90	/* This must be the highest BINOP_ value, for expprint.c. */
	91	OP (BINOP_END)
	92
	93	/* Operates on three values computed by following subexpressions. */
	94	OP (TERNOP_COND) /* ?: */
	95
c9402c95 YQ	96	/* A sub-string/sub-array. Ada syntax: OP1(OP2..OP3). Return
c9402c95 YQ	97	elements OP2 through OP3 of OP1. */
56c12414 JK	98	OP (TERNOP_SLICE)
56c12414 JK	99
56c12414 JK	100	/* Multidimensional subscript operator, such as Modula-2 x[a,b,...].
	101	The dimensionality is encoded in the operator, like the number of
	102	function arguments in OP_FUNCALL, I.E. <OP><dimension><OP>.
	103	The value of the first following subexpression is subscripted
	104	by each of the next following subexpressions, one per dimension. */
	105	OP (MULTI_SUBSCRIPT)
	106
	107	/* The OP_... series take immediate following arguments.
	108	After the arguments come another OP_... (the same one)
	109	so that the grouping can be recognized from the end. */
	110
	111	/* OP_LONG is followed by a type pointer in the next exp_element
	112	and the long constant value in the following exp_element.
	113	Then comes another OP_LONG.
	114	Thus, the operation occupies four exp_elements. */
	115	OP (OP_LONG)
	116
edd079d9 UW	117	/* OP_FLOAT is similar but takes a floating-point constant encoded in
	118	the target format for the given type instead of a long. */
	119	OP (OP_FLOAT)
56c12414 JK	120
	121	/* OP_VAR_VALUE takes one struct block * in the following element,
	122	and one struct symbol * in the following exp_element, followed
	123	by another OP_VAR_VALUE, making four exp_elements. If the
	124	block is non-NULL, evaluate the symbol relative to the
	125	innermost frame executing in that block; if the block is NULL
	126	use the selected frame. */
	127	OP (OP_VAR_VALUE)
	128
36b11add JK	129	/* OP_VAR_ENTRY_VALUE takes one struct symbol * in the following element,
	130	followed by another OP_VAR_ENTRY_VALUE, making three exp_elements.
	131	somename@entry may mean parameter value as present at the entry of the
216f72a1	132	current function. Implemented via DW_OP_entry_value. */
36b11add JK	133	OP (OP_VAR_ENTRY_VALUE)
36b11add JK	134
74ea4be4 PA	135	/* OP_VAR_MSYM_VALUE takes one struct objfile * in the following
	136	element, and one struct minimal_symbol * in the following
	137	exp_element, followed by another OP_VAR_MSYM_VALUE, making four
	138	exp_elements. */
	139	OP (OP_VAR_MSYM_VALUE)
	140
56c12414 JK	141	/* OP_LAST is followed by an integer in the next exp_element.
	142	The integer is zero for the last value printed,
	143	or it is the absolute number of a history element.
	144	With another OP_LAST at the end, this makes three exp_elements. */
	145	OP (OP_LAST)
	146
	147	/* OP_REGISTER is followed by a string in the next exp_element.
	148	This is the name of a register to fetch. */
	149	OP (OP_REGISTER)
	150
	151	/* OP_INTERNALVAR is followed by an internalvar ptr in the next
	152	exp_element. With another OP_INTERNALVAR at the end, this
	153	makes three exp_elements. */
	154	OP (OP_INTERNALVAR)
	155
	156	/* OP_FUNCALL is followed by an integer in the next exp_element.
	157	The integer is the number of args to the function call.
	158	That many plus one values from following subexpressions
	159	are used, the first one being the function.
	160	The integer is followed by a repeat of OP_FUNCALL,
	161	making three exp_elements. */
	162	OP (OP_FUNCALL)
	163
	164	/* OP_OBJC_MSGCALL is followed by a string in the next exp_element
	165	and then an integer. The string is the selector string. The
	166	integer is the number of arguments to the message call. That
	167	many plus one values are used, the first one being the object
	168	pointer. This is an Objective C message. */
	169	OP (OP_OBJC_MSGCALL)
	170
	171	/* This is EXACTLY like OP_FUNCALL but is semantically different.
	172	In F77, array subscript expressions, substring expressions and
	173	function calls are all exactly the same syntactically. They
	174	may only be disambiguated at runtime. Thus this operator,
	175	which indicates that we have found something of the form
	176	<name> ( <stuff> ). */
	177	OP (OP_F77_UNDETERMINED_ARGLIST)
	178
	179	/* OP_COMPLEX takes a type in the following element, followed by another
	180	OP_COMPLEX, making three exp_elements. It is followed by two double
	181	args, and converts them into a complex number of the given type. */
	182	OP (OP_COMPLEX)
	183
	184	/* OP_STRING represents a string constant.
	185	Its format is the same as that of a STRUCTOP, but the string
	186	data is just made into a string constant when the operation
	187	is executed. */
	188	OP (OP_STRING)
	189
56c12414 JK	190	/* OP_ARRAY creates an array constant out of the following subexpressions.
	191	It is followed by two exp_elements, the first containing an integer
	192	that is the lower bound of the array and the second containing another
	193	integer that is the upper bound of the array. The second integer is
	194	followed by a repeat of OP_ARRAY, making four exp_elements total.
	195	The bounds are used to compute the number of following subexpressions
	196	to consume, as well as setting the bounds in the created array constant.
	197	The type of the elements is taken from the type of the first subexp,
	198	and they must all match. */
	199	OP (OP_ARRAY)
	200
	201	/* UNOP_CAST is followed by a type pointer in the next exp_element.
	202	With another UNOP_CAST at the end, this makes three exp_elements.
	203	It casts the value of the following subexpression. */
	204	OP (UNOP_CAST)
	205
9eaf6705 TT	206	/* Like UNOP_CAST, but the type is a subexpression. */
	207	OP (UNOP_CAST_TYPE)
	208
56c12414 JK	209	/* The C++ dynamic_cast operator. */
	210	OP (UNOP_DYNAMIC_CAST)
	211
	212	/* The C++ reinterpret_cast operator. */
	213	OP (UNOP_REINTERPRET_CAST)
	214
	215	/* UNOP_MEMVAL is followed by a type pointer in the next exp_element
	216	With another UNOP_MEMVAL at the end, this makes three exp_elements.
	217	It casts the contents of the word addressed by the value of the
	218	following subexpression. */
	219	OP (UNOP_MEMVAL)
	220
9eaf6705 TT	221	/* Like UNOP_MEMVAL, but the type is supplied as a subexpression. */
	222	OP (UNOP_MEMVAL_TYPE)
	223
56c12414 JK	224	/* UNOP_... operate on one value from a following subexpression
	225	and replace it with a result. They take no immediate arguments. */
	226
	227	OP (UNOP_NEG) /* Unary - */
	228	OP (UNOP_LOGICAL_NOT) /* Unary ! */
	229	OP (UNOP_COMPLEMENT) /* Unary ~ */
	230	OP (UNOP_IND) /* Unary * */
	231	OP (UNOP_ADDR) /* Unary & */
	232	OP (UNOP_PREINCREMENT) /* ++ before an expression */
	233	OP (UNOP_POSTINCREMENT) /* ++ after an expression */
	234	OP (UNOP_PREDECREMENT) /* -- before an expression */
	235	OP (UNOP_POSTDECREMENT) /* -- after an expression */
	236	OP (UNOP_SIZEOF) /* Unary sizeof (followed by expression) */
007e1530	237	OP (UNOP_ALIGNOF) /* Unary alignof (followed by expression) */
56c12414 JK	238
	239	OP (UNOP_PLUS) /* Unary plus */
	240
	241	OP (UNOP_CAP) /* Modula-2 standard (unary) procedures */
	242	OP (UNOP_CHR)
	243	OP (UNOP_ORD)
	244	OP (UNOP_ABS)
	245	OP (UNOP_FLOAT)
	246	OP (UNOP_HIGH)
	247	OP (UNOP_MAX)
	248	OP (UNOP_MIN)
	249	OP (UNOP_ODD)
	250	OP (UNOP_TRUNC)
	251
	252	OP (OP_BOOL) /* Modula-2 builtin BOOLEAN type */
	253	OP (OP_M2_STRING) /* Modula-2 string constants */
	254
	255	/* STRUCTOP_... operate on a value from a following subexpression
	256	by extracting a structure component specified by a string
	257	that appears in the following exp_elements (as many as needed).
	258	STRUCTOP_STRUCT is used for "." and STRUCTOP_PTR for "->".
	259	They differ only in the error message given in case the value is
	260	not suitable or the structure component specified is not found.
	261
	262	The length of the string follows the opcode, followed by
	263	BYTES_TO_EXP_ELEM(length) elements containing the data of the
	264	string, followed by the length again and the opcode again. */
	265
	266	OP (STRUCTOP_STRUCT)
	267	OP (STRUCTOP_PTR)
	268
c44af4eb TT	269	/* Anonymous field access, e.g. "foo.3". Used in Rust. */
	270	OP (STRUCTOP_ANONYMOUS)
	271
56c12414 JK	272	/* C++: OP_THIS is just a placeholder for the class instance variable.
	273	It just comes in a tight (OP_THIS, OP_THIS) pair. */
	274	OP (OP_THIS)
	275
56c12414 JK	276	/* Objective C: "@selector" pseudo-operator. */
	277	OP (OP_OBJC_SELECTOR)
	278
	279	/* OP_SCOPE surrounds a type name and a field name. The type
	280	name is encoded as one element, but the field name stays as
	281	a string, which, of course, is variable length. */
	282	OP (OP_SCOPE)
	283
858be34c PA	284	/* OP_FUNC_STATIC_VAR refers to a function local static variable. The
	285	function is taken from the following subexpression. The length of
	286	the variable name as a string follows the opcode, followed by
	287	BYTES_TO_EXP_ELEM(length) elements containing the data of the
	288	string, followed by the length again and the opcode again.
	289
	290	Note this is used by C++, but not C. The C parser handles local
	291	static variables in the parser directly. Also, this is only used
	292	in C++ if the function/method name is not quoted, like e.g.:
	293
	294	p S:method()::var
	295	p S:method() const::var
	296
	297	If the function/method is quoted like instead:
	298
	299	p 'S:method() const'::var
	300
	301	then the C-specific handling directly in the parser takes over (see
6fdcd7cc	302	block/variable productions).
e68cb8e0 PA	303
	304	Also, if the whole function+var is quoted like this:
	305
	306	p 'S:method() const::var'
	307
	308	then the whole quoted expression is interpreted as a single symbol
	309	name and we don't use OP_FUNC_STATIC_VAR either. In that case, the
	310	C++-specific symbol lookup routines take care of the
	311	function-local-static search. */
858be34c PA	312	OP (OP_FUNC_STATIC_VAR)
858be34c PA	313
56c12414 JK	314	/* OP_TYPE is for parsing types, and used with the "ptype" command
	315	so we can look up types that are qualified by scope, either with
	316	the GDB "::" operator, or the Modula-2 '.' operator. */
	317	OP (OP_TYPE)
	318
	319	/* An un-looked-up identifier. */
	320	OP (OP_NAME)
	321
	322	/* An Objective C Foundation Class NSString constant. */
	323	OP (OP_OBJC_NSSTRING)
	324
01739a3b TT	325	/* An array range operator (in Fortran 90, for "exp:exp", "exp:",
	326	":exp" and ":"). */
	327	OP (OP_RANGE)
56c12414	328
56c12414 JK	329	/* OP_ADL_FUNC specifies that the function is to be looked up in an
	330	Argument Dependent manner (Koenig lookup). */
	331	OP (OP_ADL_FUNC)
608b4967 TT	332
	333	/* The typeof operator. This has one expression argument, which is
	334	evaluated solely for its type. */
	335	OP (OP_TYPEOF)
	336
	337	/* The decltype operator. This has one expression argument, which is
	338	evaluated solely for its type. This is similar to typeof, but has
	339	slight different semantics. */
	340	OP (OP_DECLTYPE)
6e72ca20 TT	341
	342	/* The typeid operator. This has one expression argument. */
	343	OP (OP_TYPEID)
c44af4eb TT	344
	345	/* This is used for the Rust [expr; N] form of array construction. It
	346	takes two expression arguments. */
	347	OP (OP_RUST_ARRAY)