This moves the part of code that checks if we're still in a block
into its own function. We'll need a different approach on advancing
the blocks in a later patch, so having it as a separate function will
prove useful.
While at it rename the variable `p` to `prev` to indicate that it refers
to the previous line. This is as pmb[i] was assigned in the last iteration
of the outmost for loop.
Further rename `pnext` to `cur` to indicate that this should match up with
the current line of the outmost for loop.
Also replace the advancement of pmb[i] to reuse `cur` instead of
using `p->next` (which is how the name for pnext could be explained.
Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
diff.c | 32 ++++++++++++++++++++------------
1 file changed, 20 insertions(+), 12 deletions(-)
diff --git a/diff.c b/diff.c
index 6c523bafddf..040b46545e5 100644
--- a/diff.c
+++ b/diff.c
@@ -801,6 +801,25 @@ static void add_lines_to_move_detection(struct diff_options *o,
}
}
+static void pmb_advance_or_null(struct diff_options *o,
+ struct moved_entry *match,
+ struct hashmap *hm,
+ struct moved_entry **pmb,
+ int pmb_nr)
+{
+ int i;
+ for (i = 0; i < pmb_nr; i++) {
+ struct moved_entry *prev = pmb[i];
+ struct moved_entry *cur = (prev && prev->next_line) ?
+ prev->next_line : NULL;
+ if (cur && !hm->cmpfn(o, cur, match, NULL)) {
+ pmb[i] = cur;
+ } else {
+ pmb[i] = NULL;
+ }
+ }
+}
+
static int shrink_potential_moved_blocks(struct moved_entry **pmb,
int pmb_nr)
{
@@ -875,7 +894,6 @@ static void mark_color_as_moved(struct diff_options *o,
struct moved_entry *key;
struct moved_entry *match = NULL;
struct emitted_diff_symbol *l = &o->emitted_symbols->buf[n];
- int i;
switch (l->s) {
case DIFF_SYMBOL_PLUS:
@@ -906,17 +924,7 @@ static void mark_color_as_moved(struct diff_options *o,
if (o->color_moved == COLOR_MOVED_PLAIN)
continue;
- /* Check any potential block runs, advance each or nullify */
- for (i = 0; i < pmb_nr; i++) {
- struct moved_entry *p = pmb[i];
- struct moved_entry *pnext = (p && p->next_line) ?
- p->next_line : NULL;
- if (pnext && !hm->cmpfn(o, pnext, match, NULL)) {
- pmb[i] = p->next_line;
- } else {
- pmb[i] = NULL;
- }
- }
+ pmb_advance_or_null(o, match, hm, pmb, pmb_nr);
pmb_nr = shrink_potential_moved_blocks(pmb, pmb_nr);
--
2.18.0.rc2.346.g013aa6912e-goog
