Introduce dwarf2/public.h

[deliverable/binutils-gdb.git] / gdb / m2-lang.h

diff --git a/gdb/m2-lang.h b/gdb/m2-lang.h
index 81c346086e884e147911a5f06e6bc64c85d7e029..89b9d185b96c262fcff9174523e6ad3398fa5ef3 100644 (file)
--- a/gdb/m2-lang.h
+++ b/gdb/m2-lang.h
@@ -1,6 +1,6 @@
 /* Modula 2 language support definitions for GDB, the GNU debugger.
 
-   Copyright (C) 1992-2020 Free Software Foundation, Inc.
+   Copyright (C) 1992-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -23,23 +23,13 @@
 struct type_print_options;
 struct parser_state;
 
-extern int m2_parse (struct parser_state *); /* Defined in m2-exp.y */
-
 /* Defined in m2-typeprint.c */
 extern void m2_print_type (struct type *, const char *, struct ui_file *, int,
                           int, const struct type_print_options *);
 
-extern void m2_print_typedef (struct type *, struct symbol *,
-                             struct ui_file *);
-
 extern int m2_is_long_set (struct type *type);
 extern int m2_is_unbounded_array (struct type *type);
 
-extern void m2_val_print (struct type *, int, CORE_ADDR,
-                         struct ui_file *, int,
-                         struct value *,
-                         const struct value_print_options *);
-
 extern int get_long_set_bounds (struct type *type, LONGEST *low,
                                LONGEST *high);
 
@@ -57,4 +47,106 @@ struct builtin_m2_type
 /* Return the Modula-2 type table for the specified architecture.  */
 extern const struct builtin_m2_type *builtin_m2_type (struct gdbarch *gdbarch);
 
+/* Class representing the M2 language.  */
+
+class m2_language : public language_defn
+{
+public:
+  m2_language ()
+    : language_defn (language_m2)
+  { /* Nothing.  */ }
+
+  /* See language.h.  */
+
+  const char *name () const override
+  { return "modula-2"; }
+
+  /* See language.h.  */
+
+  const char *natural_name () const override
+  { return "Modula-2"; }
+
+  /* See language.h.  */
+
+  void language_arch_info (struct gdbarch *gdbarch,
+                          struct language_arch_info *lai) const override;
+
+  /* See language.h.  */
+
+  void print_type (struct type *type, const char *varstring,
+                  struct ui_file *stream, int show, int level,
+                  const struct type_print_options *flags) const override
+  {
+    m2_print_type (type, varstring, stream, show, level, flags);
+  }
+
+  /* See language.h.  */
+
+  void value_print_inner (struct value *val, struct ui_file *stream,
+                         int recurse,
+                         const struct value_print_options *options) const override;
+
+  /* See language.h.  */
+
+  int parser (struct parser_state *ps) const override;
+
+  /* See language.h.  */
+
+  void emitchar (int ch, struct type *chtype,
+                struct ui_file *stream, int quoter) const override;
+
+  /* See language.h.  */
+
+  void printchar (int ch, struct type *chtype,
+                 struct ui_file *stream) const override;
+
+  /* See language.h.  */
+
+  void printstr (struct ui_file *stream, struct type *elttype,
+                const gdb_byte *string, unsigned int length,
+                const char *encoding, int force_ellipses,
+                const struct value_print_options *options) const override;
+
+  /* See language.h.  */
+
+  void print_typedef (struct type *type, struct symbol *new_symbol,
+                     struct ui_file *stream) const override;
+
+  /* See language.h.  */
+
+  bool is_string_type_p (struct type *type) const override
+  {
+    type = check_typedef (type);
+    if (type->code () == TYPE_CODE_ARRAY
+       && TYPE_LENGTH (type) > 0
+       && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
+      {
+       struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
+
+       if (TYPE_LENGTH (elttype) == 1
+           && (elttype->code () == TYPE_CODE_INT
+               || elttype->code () == TYPE_CODE_CHAR))
+         return true;
+      }
+
+    return false;
+  }
+
+  /* See language.h.  */
+
+  bool c_style_arrays_p () const override
+  { return false; }
+
+  /* See language.h.  Despite not having C-style arrays, Modula-2 uses 0
+     for its string lower bounds.  */
+
+  char string_lower_bound () const override
+  { return 0; }
+
+  /* See language.h.  */
+
+  bool range_checking_on_by_default () const override
+  { return true; }
+};
+
 #endif /* M2_LANG_H */