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This commits the result of running gdb/copyright.py as per our Start of New Year procedure... gdb/ChangeLog Update copyright year range in copyright header of all GDB files.
206 lines
5.2 KiB
C
206 lines
5.2 KiB
C
/* Type stack for GDB parser.
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Copyright (C) 1986-2021 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "type-stack.h"
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#include "gdbtypes.h"
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#include "parser-defs.h"
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/* See type-stack.h. */
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void
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type_stack::insert (enum type_pieces tp)
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{
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union type_stack_elt element;
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int slot;
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gdb_assert (tp == tp_pointer || tp == tp_reference
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|| tp == tp_rvalue_reference || tp == tp_const
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|| tp == tp_volatile || tp == tp_restrict
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|| tp == tp_atomic);
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/* If there is anything on the stack (we know it will be a
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tp_pointer), insert the qualifier above it. Otherwise, simply
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push this on the top of the stack. */
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if (!m_elements.empty () && (tp == tp_const || tp == tp_volatile
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|| tp == tp_restrict))
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slot = 1;
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else
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slot = 0;
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element.piece = tp;
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insert_into (slot, element);
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}
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/* See type-stack.h. */
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void
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type_stack::insert (struct expr_builder *pstate, const char *string)
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{
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union type_stack_elt element;
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int slot;
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/* If there is anything on the stack (we know it will be a
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tp_pointer), insert the address space qualifier above it.
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Otherwise, simply push this on the top of the stack. */
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if (!m_elements.empty ())
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slot = 1;
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else
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slot = 0;
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element.piece = tp_space_identifier;
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insert_into (slot, element);
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element.int_val
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= address_space_name_to_type_instance_flags (pstate->gdbarch (),
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string);
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insert_into (slot, element);
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}
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/* See type-stack.h. */
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type_instance_flags
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type_stack::follow_type_instance_flags ()
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{
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type_instance_flags flags = 0;
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for (;;)
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switch (pop ())
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{
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case tp_end:
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return flags;
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case tp_const:
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flags |= TYPE_INSTANCE_FLAG_CONST;
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break;
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case tp_volatile:
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flags |= TYPE_INSTANCE_FLAG_VOLATILE;
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break;
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case tp_atomic:
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flags |= TYPE_INSTANCE_FLAG_ATOMIC;
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break;
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case tp_restrict:
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flags |= TYPE_INSTANCE_FLAG_RESTRICT;
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break;
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default:
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gdb_assert_not_reached ("unrecognized tp_ value in follow_types");
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}
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}
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/* See type-stack.h. */
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struct type *
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type_stack::follow_types (struct type *follow_type)
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{
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int done = 0;
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int make_const = 0;
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int make_volatile = 0;
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type_instance_flags make_addr_space = 0;
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bool make_restrict = false;
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bool make_atomic = false;
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int array_size;
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while (!done)
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switch (pop ())
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{
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case tp_end:
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done = 1;
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goto process_qualifiers;
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break;
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case tp_const:
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make_const = 1;
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break;
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case tp_volatile:
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make_volatile = 1;
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break;
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case tp_space_identifier:
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make_addr_space = (enum type_instance_flag_value) pop_int ();
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break;
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case tp_atomic:
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make_atomic = true;
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break;
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case tp_restrict:
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make_restrict = true;
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break;
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case tp_pointer:
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follow_type = lookup_pointer_type (follow_type);
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goto process_qualifiers;
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case tp_reference:
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follow_type = lookup_lvalue_reference_type (follow_type);
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goto process_qualifiers;
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case tp_rvalue_reference:
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follow_type = lookup_rvalue_reference_type (follow_type);
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process_qualifiers:
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if (make_const)
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follow_type = make_cv_type (make_const,
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TYPE_VOLATILE (follow_type),
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follow_type, 0);
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if (make_volatile)
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follow_type = make_cv_type (TYPE_CONST (follow_type),
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make_volatile,
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follow_type, 0);
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if (make_addr_space)
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follow_type = make_type_with_address_space (follow_type,
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make_addr_space);
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if (make_restrict)
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follow_type = make_restrict_type (follow_type);
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if (make_atomic)
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follow_type = make_atomic_type (follow_type);
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make_const = make_volatile = 0;
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make_addr_space = 0;
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make_restrict = make_atomic = false;
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break;
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case tp_array:
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array_size = pop_int ();
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/* FIXME-type-allocation: need a way to free this type when we are
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done with it. */
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follow_type =
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lookup_array_range_type (follow_type,
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0, array_size >= 0 ? array_size - 1 : 0);
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if (array_size < 0)
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follow_type->bounds ()->high.set_undefined ();
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break;
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case tp_function:
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/* FIXME-type-allocation: need a way to free this type when we are
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done with it. */
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follow_type = lookup_function_type (follow_type);
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break;
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case tp_function_with_arguments:
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{
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std::vector<struct type *> *args = pop_typelist ();
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follow_type
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= lookup_function_type_with_arguments (follow_type,
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args->size (),
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args->data ());
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}
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break;
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case tp_type_stack:
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{
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struct type_stack *stack = pop_type_stack ();
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follow_type = stack->follow_types (follow_type);
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}
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break;
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default:
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gdb_assert_not_reached ("unrecognized tp_ value in follow_types");
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}
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return follow_type;
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}
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