/* Output generating routines for GDB.
- Copyright (C) 1999-2019 Free Software Foundation, Inc.
+ Copyright (C) 1999-2021 Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
Written by Fernando Nasser for Cygnus.
{
ui_source_list = (1 << 0),
fix_multi_location_breakpoint_output = (1 << 1),
+ /* For CLI output, this flag is set if unfiltered output is desired.
+ This should only be used by low-level formatting functions. */
+ unfiltered_output = (1 << 2),
+ /* This indicates that %pF should be disallowed in a printf format
+ string. */
+ disallow_ui_out_field = (1 << 3)
};
DEF_ENUM_FLAGS_TYPE (ui_out_flag, ui_out_flags);
ui_out_type_list
};
+/* The possible kinds of fields. */
+enum class field_kind
+ {
+ /* "FIELD_STRING" needs a funny name to avoid clashes with tokens
+ named "STRING". See PR build/25250. FIELD_SIGNED is given a
+ similar name for consistency. */
+ FIELD_SIGNED,
+ FIELD_STRING,
+ };
+
+/* The base type of all fields that can be emitted using %pF. */
+
+struct base_field_s
+{
+ const char *name;
+ field_kind kind;
+};
+
+/* A signed integer field, to be passed to %pF in format strings. */
+
+struct signed_field_s : base_field_s
+{
+ LONGEST val;
+};
+
+/* Construct a temporary signed_field_s on the caller's stack and
+ return a pointer to the constructed object. We use this because
+ it's not possible to pass a reference via va_args. */
+
+static inline signed_field_s *
+signed_field (const char *name, LONGEST val,
+ signed_field_s &&tmp = {})
+{
+ tmp.name = name;
+ tmp.kind = field_kind::FIELD_SIGNED;
+ tmp.val = val;
+ return &tmp;
+}
+
+/* A string field, to be passed to %pF in format strings. */
+
+struct string_field_s : base_field_s
+{
+ const char *str;
+};
+
+/* Construct a temporary string_field_s on the caller's stack and
+ return a pointer to the constructed object. We use this because
+ it's not possible to pass a reference via va_args. */
+
+static inline string_field_s *
+string_field (const char *name, const char *str,
+ string_field_s &&tmp = {})
+{
+ tmp.name = name;
+ tmp.kind = field_kind::FIELD_STRING;
+ tmp.str = str;
+ return &tmp;
+}
+
+/* A styled string. */
+
+struct styled_string_s
+{
+ /* The style. */
+ ui_file_style style;
+
+ /* The string. */
+ const char *str;
+};
+
+/* Construct a temporary styled_string_s on the caller's stack and
+ return a pointer to the constructed object. We use this because
+ it's not possible to pass a reference via va_args. */
+
+static inline styled_string_s *
+styled_string (const ui_file_style &style, const char *str,
+ styled_string_s &&tmp = {})
+{
+ tmp.style = style;
+ tmp.str = str;
+ return &tmp;
+}
+
class ui_out
{
public:
void field_skip (const char *fldname);
void field_fmt (const char *fldname, const char *format, ...)
ATTRIBUTE_PRINTF (3, 4);
+ void field_fmt (const char *fldname, const ui_file_style &style,
+ const char *format, ...)
+ ATTRIBUTE_PRINTF (4, 5);
void spaces (int numspaces);
void text (const char *string);
+
+ /* Output a printf-style formatted string. In addition to the usual
+ printf format specs, this supports a few GDB-specific
+ formatters:
+
+ - '%pF' - output a field.
+
+ The argument is a field, wrapped in any of the base_field_s
+ subclasses. signed_field for integer fields, string_field for
+ string fields. This is preferred over separate
+ uiout->field_signed(), uiout_>field_string() etc. calls when
+ the formatted message is translatable. E.g.:
+
+ uiout->message (_("\nWatchpoint %pF deleted because the program has "
+ "left the block in\n"
+ "which its expression is valid.\n"),
+ signed_field ("wpnum", b->number));
+
+ - '%p[' - output the following text in a specified style.
+ '%p]' - output the following text in the default style.
+
+ The argument to '%p[' is a ui_file_style pointer. The argument
+ to '%p]' must be nullptr.
+
+ This is useful when you want to output some portion of a string
+ literal in some style. E.g.:
+
+ uiout->message (_(" %p[<repeats %u times>%p]"),
+ metadata_style.style ().ptr (),
+ reps, repeats, nullptr);
+
+ - '%ps' - output a styled string.
+
+ The argument is the result of a call to styled_string. This is
+ useful when you want to output some runtime-generated string in
+ some style. E.g.:
+
+ uiout->message (_("this is a target address %ps.\n"),
+ styled_string (address_style.style (),
+ paddress (gdbarch, pc)));
+
+ Note that these all "abuse" the %p printf format spec, in order
+ to be compatible with GCC's printf format checking. This is OK
+ because code in GDB that wants to print a host address should use
+ host_address_to_string instead of %p. */
void message (const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
+ void vmessage (const ui_file_style &in_style,
+ const char *format, va_list args) ATTRIBUTE_PRINTF (3, 0);
+
void wrap_hint (const char *identstring);
void flush ();
escapes. */
virtual bool can_emit_style_escape () const = 0;
+ /* An object that starts and finishes a progress meter. */
+ class progress_meter
+ {
+ public:
+ /* SHOULD_PRINT indicates whether something should be printed for a tty. */
+ progress_meter (struct ui_out *uiout, const std::string &name,
+ bool should_print)
+ : m_uiout (uiout)
+ {
+ m_uiout->do_progress_start (name, should_print);
+ }
+
+ ~progress_meter ()
+ {
+ m_uiout->do_progress_notify (1.0);
+ m_uiout->do_progress_end ();
+ }
+
+ progress_meter (const progress_meter &) = delete;
+ progress_meter &operator= (const progress_meter &) = delete;
+
+ private:
+
+ struct ui_out *m_uiout;
+ };
+
+ /* Emit some progress corresponding to the most recently created
+ progress meter. HOWMUCH may range from 0.0 to 1.0. */
+ void progress (double howmuch)
+ {
+ do_progress_notify (howmuch);
+ }
+
protected:
virtual void do_table_begin (int nbrofcols, int nr_rows, const char *tblid)
const char *fldname, const char *string,
const ui_file_style &style) = 0;
virtual void do_field_fmt (int fldno, int width, ui_align align,
- const char *fldname, const char *format,
- va_list args)
- ATTRIBUTE_PRINTF (6,0) = 0;
+ const char *fldname, const ui_file_style &style,
+ const char *format, va_list args)
+ ATTRIBUTE_PRINTF (7, 0) = 0;
virtual void do_spaces (int numspaces) = 0;
virtual void do_text (const char *string) = 0;
- virtual void do_message (const char *format, va_list args)
- ATTRIBUTE_PRINTF (2,0) = 0;
+ virtual void do_message (const ui_file_style &style,
+ const char *format, va_list args)
+ ATTRIBUTE_PRINTF (3,0) = 0;
virtual void do_wrap_hint (const char *identstring) = 0;
virtual void do_flush () = 0;
virtual void do_redirect (struct ui_file *outstream) = 0;
+ virtual void do_progress_start (const std::string &, bool) = 0;
+ virtual void do_progress_notify (double) = 0;
+ virtual void do_progress_end () = 0;
+
/* Set as not MI-like by default. It is overridden in subclasses if
necessary. */
{ return false; }
private:
+ void call_do_message (const ui_file_style &style, const char *format,
+ ...);
ui_out_flags m_flags;