An earlier version of this was approved by Bernd as:
https://gcc.gnu.org/ml/gcc-patches/2016-10/msg00280.html
and the changes since then probably fall under the "obvious" rule.
gcc/ChangeLog:
* read-md.c (rtx_reader::require_char): New method.
(require_char_ws): Convert from function to...
(rtx_reader::require_char_ws): ...method.
(rtx_reader::require_word_ws): New method.
* read-md.h (rtx_reader::require_char): New method decl.
(require_char_ws): Remove global decl in favor of...
(rtx_reader::require_char_ws): ...new method decl.
(rtx_reader::require_word_ws): New method decl.
(rtx_reader::peek_char): New method decl.
---
gcc/read-md.c | 35 ++++++++++++++++++++++++++++++++++-
gcc/read-md.h | 5 ++++-
2 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/gcc/read-md.c b/gcc/read-md.c
index 6fe2600..095075f 100644
--- a/gcc/read-md.c
+++ b/gcc/read-md.c
@@ -340,17 +340,40 @@ read_skip_spaces (void)
}
}
+/* Consume the next character, issuing a fatal error if it is not
+ EXPECTED. */
+
+void
+rtx_reader::require_char (char expected)
+{
+ int ch = read_char ();
+ if (ch != expected)
+ fatal_expected_char (expected, ch);
+}
+
/* Consume any whitespace, then consume the next non-whitespace
character, issuing a fatal error if it is not EXPECTED. */
void
-require_char_ws (char expected)
+rtx_reader::require_char_ws (char expected)
{
int ch = read_skip_spaces ();
if (ch != expected)
fatal_expected_char (expected, ch);
}
+/* Consume any whitespace, then consume the next word (as per read_name),
+ issuing a fatal error if it is not EXPECTED. */
+
+void
+rtx_reader::require_word_ws (const char *expected)
+{
+ struct md_name name;
+ read_name (&name);
+ if (strcmp (name.string, expected))
+ fatal_with_file_and_line ("missing '%s'", expected);
+}
+
/* Read the next character from the file. */
int
@@ -386,6 +409,16 @@ rtx_reader::unread_char (int ch)
ungetc (ch, m_read_md_file);
}
+/* Peek at the next character from the file without consuming it. */
+
+int
+rtx_reader::peek_char (void)
+{
+ int ch = read_char ();
+ unread_char (ch);
+ return ch;
+}
+
/* Read an rtx code name into NAME. It is terminated by any of the
punctuation chars of rtx printed syntax. */
diff --git a/gcc/read-md.h b/gcc/read-md.h
index 996b514..06b89b4 100644
--- a/gcc/read-md.h
+++ b/gcc/read-md.h
@@ -116,6 +116,10 @@ class rtx_reader
char *read_braced_string ();
char *read_string (int star_if_braced);
void read_skip_construct (int depth, file_location loc);
+ void require_char (char expected);
+ void require_char_ws (char expected);
+ void require_word_ws (const char *expected);
+ int peek_char (void);
void set_md_ptr_loc (const void *ptr, const char *filename, int lineno);
const struct ptr_loc *get_md_ptr_loc (const void *ptr);
@@ -269,7 +273,6 @@ extern void fatal_with_file_and_line (const char *, ...)
ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
extern void fatal_expected_char (int, int) ATTRIBUTE_NORETURN;
extern int read_skip_spaces (void);
-extern void require_char_ws (char expected);
extern int n_comma_elts (const char *);
extern const char *scan_comma_elt (const char **);
extern void upcase_string (char *);
--
1.8.5.3
