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/* Ada language operator definitions for GDB, the GNU debugger.
Copyright (C) 1992-2017 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/>. */
/* X IN A'RANGE(N). N is an immediate operand, surrounded by
BINOP_IN_BOUNDS before and after. A is an array, X an index
value. Evaluates to true iff X is within range of the Nth
dimension (1-based) of A. (A multi-dimensional array
type is represented as array of array of ...) */
OP (BINOP_IN_BOUNDS)
/* X IN L .. U. True iff L <= X <= U. */
OP (TERNOP_IN_RANGE)
/* Ada attributes ('Foo). */
OP (OP_ATR_FIRST)
OP (OP_ATR_LAST)
OP (OP_ATR_LENGTH)
OP (OP_ATR_IMAGE)
OP (OP_ATR_MAX)
OP (OP_ATR_MIN)
OP (OP_ATR_MODULUS)
OP (OP_ATR_POS)
OP (OP_ATR_SIZE)
OP (OP_ATR_TAG)
OP (OP_ATR_VAL)
/* Ada type qualification. It is encoded as for UNOP_CAST, above,
and denotes the TYPE'(EXPR) construct. */
OP (UNOP_QUAL)
/* X IN TYPE. The `TYPE' argument is immediate, with
UNOP_IN_RANGE before and after it. True iff X is a member of
type TYPE (typically a subrange). */
OP (UNOP_IN_RANGE)
/* An aggregate. A single immediate operand, N>0, gives
the number of component specifications that follow. The
immediate operand is followed by a second OP_AGGREGATE.
Next come N component specifications. A component
specification is either an OP_OTHERS (others=>...), an
OP_CHOICES (for named associations), or other expression (for
positional aggregates only). Aggregates currently
occur only as the right sides of assignments. */
OP (OP_AGGREGATE)
/* An others clause. Followed by a single expression. */
OP (OP_OTHERS)
/* An aggregate component association. A single immediate operand, N,
gives the number of choices that follow. This is followed by a second
OP_CHOICES operator. Next come N operands, each of which is an
expression, an OP_DISCRETE_RANGE, or an OP_NAME---the latter
for a simple name that must be a record component name and does
not correspond to a single existing symbol. After the N choice
indicators comes an expression giving the value.
In an aggregate such as (X => E1, ...), where X is a simple
name, X could syntactically be either a component_selector_name
or an expression used as a discrete_choice, depending on the
aggregate's type context. Since this is not known at parsing
time, we don't attempt to disambiguate X if it has multiple
definitions, but instead supply an OP_NAME. If X has a single
definition, we represent it with an OP_VAR_VALUE, even though
it may turn out to be within a record aggregate. Aggregate
evaluation can use either OP_NAMEs or OP_VAR_VALUEs to get a
record field name, and can evaluate OP_VAR_VALUE normally to
get its value as an expression. Unfortunately, we lose out in
cases where X has multiple meanings and is part of an array
aggregate. I hope these are not common enough to annoy users,
who can work around the problem in any case by putting
parentheses around X. */
OP (OP_CHOICES)
/* A positional aggregate component association. The operator is
followed by a single integer indicating the position in the
aggregate (0-based), followed by a second OP_POSITIONAL. Next
follows a single expression giving the component value. */
OP (OP_POSITIONAL)
/* A range of values. Followed by two expressions giving the
upper and lower bounds of the range. */
OP (OP_DISCRETE_RANGE)
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