152 lines
4 KiB
C++
152 lines
4 KiB
C++
/* Modula 2 language support definitions for GDB, the GNU debugger.
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Copyright (C) 1992-2022 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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#ifndef M2_LANG_H
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#define M2_LANG_H
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struct type_print_options;
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struct parser_state;
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/* Defined in m2-typeprint.c */
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extern void m2_print_type (struct type *, const char *, struct ui_file *, int,
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int, const struct type_print_options *);
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extern int m2_is_long_set (struct type *type);
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extern int m2_is_unbounded_array (struct type *type);
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extern int get_long_set_bounds (struct type *type, LONGEST *low,
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LONGEST *high);
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/* Modula-2 types */
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struct builtin_m2_type
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{
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struct type *builtin_char;
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struct type *builtin_int;
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struct type *builtin_card;
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struct type *builtin_real;
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struct type *builtin_bool;
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};
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/* Return the Modula-2 type table for the specified architecture. */
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extern const struct builtin_m2_type *builtin_m2_type (struct gdbarch *gdbarch);
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/* Class representing the M2 language. */
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class m2_language : public language_defn
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{
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public:
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m2_language ()
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: language_defn (language_m2)
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{ /* Nothing. */ }
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/* See language.h. */
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const char *name () const override
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{ return "modula-2"; }
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/* See language.h. */
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const char *natural_name () const override
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{ return "Modula-2"; }
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/* See language.h. */
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void language_arch_info (struct gdbarch *gdbarch,
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struct language_arch_info *lai) const override;
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/* See language.h. */
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void print_type (struct type *type, const char *varstring,
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struct ui_file *stream, int show, int level,
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const struct type_print_options *flags) const override
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{
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m2_print_type (type, varstring, stream, show, level, flags);
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}
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/* See language.h. */
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void value_print_inner (struct value *val, struct ui_file *stream,
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int recurse,
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const struct value_print_options *options) const override;
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/* See language.h. */
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int parser (struct parser_state *ps) const override;
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/* See language.h. */
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void emitchar (int ch, struct type *chtype,
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struct ui_file *stream, int quoter) const override;
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/* See language.h. */
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void printchar (int ch, struct type *chtype,
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struct ui_file *stream) const override;
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/* See language.h. */
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void printstr (struct ui_file *stream, struct type *elttype,
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const gdb_byte *string, unsigned int length,
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const char *encoding, int force_ellipses,
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const struct value_print_options *options) const override;
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/* See language.h. */
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void print_typedef (struct type *type, struct symbol *new_symbol,
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struct ui_file *stream) const override;
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/* See language.h. */
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bool is_string_type_p (struct type *type) const override
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{
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type = check_typedef (type);
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if (type->code () == TYPE_CODE_ARRAY
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&& TYPE_LENGTH (type) > 0
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&& TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
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{
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struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
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if (TYPE_LENGTH (elttype) == 1
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&& (elttype->code () == TYPE_CODE_INT
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|| elttype->code () == TYPE_CODE_CHAR))
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return true;
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}
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return false;
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}
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/* See language.h. */
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bool c_style_arrays_p () const override
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{ return false; }
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/* See language.h. Despite not having C-style arrays, Modula-2 uses 0
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for its string lower bounds. */
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char string_lower_bound () const override
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{ return 0; }
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/* See language.h. */
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bool range_checking_on_by_default () const override
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{ return true; }
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};
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#endif /* M2_LANG_H */
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