We take a ws_rule parameter, but have never looked at it since the
function was added in 877f23ccb8 (Teach "diff --check" about new blank
lines at end, 2008-06-26). A comment in the function does mention how we
_could_ use it, but nobody has felt the need to do so for over a decade.
We could keep it around as reminder of what could be done, but the
comment serves that purpose. And in the meantime, it triggers
-Wunused-parameter.
So let's drop it, which in turn allows us to drop similar arguments
further up the callstack. I've left the comment intact. It does still
say "ws_rule", but that name is used consistently in the whitespace
code, so the meaning is clear.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
apply.c | 4 ++--
cache.h | 2 +-
diff.c | 11 +++++------
ws.c | 2 +-
4 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/apply.c b/apply.c
index bc33814313..8582228047 100644
--- a/apply.c
+++ b/apply.c
@@ -2911,11 +2911,11 @@ static int apply_one_fragment(struct apply_state *state,
add_line_info(&postimage, "\n", 1, LINE_COMMON);
is_blank_context = 1;
break;
case ' ':
if (plen && (ws_rule & WS_BLANK_AT_EOF) &&
- ws_blank_line(patch + 1, plen, ws_rule))
+ ws_blank_line(patch + 1, plen))
is_blank_context = 1;
/* fallthrough */
case '-':
memcpy(old, patch + 1, plen);
add_line_info(&preimage, old, plen,
@@ -2940,11 +2940,11 @@ static int apply_one_fragment(struct apply_state *state,
}
add_line_info(&postimage, newlines.buf + start, newlines.len - start,
(first == '+' ? 0 : LINE_COMMON));
if (first == '+' &&
(ws_rule & WS_BLANK_AT_EOF) &&
- ws_blank_line(patch + 1, plen, ws_rule))
+ ws_blank_line(patch + 1, plen))
added_blank_line = 1;
break;
case '@': case '\\':
/* Ignore it, we already handled it */
break;
diff --git a/cache.h b/cache.h
index 07d40b0964..fcf49706ad 100644
--- a/cache.h
+++ b/cache.h
@@ -1863,11 +1863,11 @@ unsigned whitespace_rule(struct index_state *, const char *);
unsigned parse_whitespace_rule(const char *);
unsigned ws_check(const char *line, int len, unsigned ws_rule);
void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
char *whitespace_error_string(unsigned ws);
void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *);
-int ws_blank_line(const char *line, int len, unsigned ws_rule);
+int ws_blank_line(const char *line, int len);
#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
/* ls-files */
void overlay_tree_on_index(struct index_state *istate,
const char *tree_name, const char *prefix);
diff --git a/diff.c b/diff.c
index 1054a4b732..74ebe247b4 100644
--- a/diff.c
+++ b/diff.c
@@ -602,11 +602,11 @@ static unsigned long diff_filespec_size(struct repository *r,
return 0;
diff_populate_filespec(r, one, &dpf_options);
return one->size;
}
-static int count_trailing_blank(mmfile_t *mf, unsigned ws_rule)
+static int count_trailing_blank(mmfile_t *mf)
{
char *ptr = mf->ptr;
long size = mf->size;
int cnt = 0;
@@ -620,25 +620,24 @@ static int count_trailing_blank(mmfile_t *mf, unsigned ws_rule)
while (mf->ptr < ptr) {
char *prev_eol;
for (prev_eol = ptr; mf->ptr <= prev_eol; prev_eol--)
if (*prev_eol == '\n')
break;
- if (!ws_blank_line(prev_eol + 1, ptr - prev_eol, ws_rule))
+ if (!ws_blank_line(prev_eol + 1, ptr - prev_eol))
break;
cnt++;
ptr = prev_eol - 1;
}
return cnt;
}
static void check_blank_at_eof(mmfile_t *mf1, mmfile_t *mf2,
struct emit_callback *ecbdata)
{
int l1, l2, at;
- unsigned ws_rule = ecbdata->ws_rule;
- l1 = count_trailing_blank(mf1, ws_rule);
- l2 = count_trailing_blank(mf2, ws_rule);
+ l1 = count_trailing_blank(mf1);
+ l2 = count_trailing_blank(mf2);
if (l2 <= l1) {
ecbdata->blank_at_eof_in_preimage = 0;
ecbdata->blank_at_eof_in_postimage = 0;
return;
}
@@ -1581,11 +1580,11 @@ static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line
ecbdata->blank_at_eof_in_preimage &&
ecbdata->blank_at_eof_in_postimage &&
ecbdata->blank_at_eof_in_preimage <= ecbdata->lno_in_preimage &&
ecbdata->blank_at_eof_in_postimage <= ecbdata->lno_in_postimage))
return 0;
- return ws_blank_line(line, len, ecbdata->ws_rule);
+ return ws_blank_line(line, len);
}
static void emit_add_line(struct emit_callback *ecbdata,
const char *line, int len)
{
diff --git a/ws.c b/ws.c
index 6e69877f25..46a77bcad6 100644
--- a/ws.c
+++ b/ws.c
@@ -250,11 +250,11 @@ void ws_check_emit(const char *line, int len, unsigned ws_rule,
unsigned ws_check(const char *line, int len, unsigned ws_rule)
{
return ws_check_emit_1(line, len, ws_rule, NULL, NULL, NULL, NULL);
}
-int ws_blank_line(const char *line, int len, unsigned ws_rule)
+int ws_blank_line(const char *line, int len)
{
/*
* We _might_ want to treat CR differently from other
* whitespace characters when ws_rule has WS_CR_AT_EOL, but
* for now we just use this stupid definition.
--
2.39.0.546.g5ea984bc66
