[PATCH v4 10/15] diff --color-moved: unify moved block growth functions

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From: Phillip Wood <phillip.wood@xxxxxxxxxxxxx>

After the last two commits pmb_advance_or_null() and
pmb_advance_or_null_multi_match() differ only in the comparison they
perform. Lets simplify the code by combining them into a single
function.

Signed-off-by: Phillip Wood <phillip.wood@xxxxxxxxxxxxx>
---
 diff.c | 41 ++++++++++++-----------------------------
 1 file changed, 12 insertions(+), 29 deletions(-)

diff --git a/diff.c b/diff.c
index 22e0edac173..51f092e724e 100644
--- a/diff.c
+++ b/diff.c
@@ -1002,36 +1002,23 @@ static void pmb_advance_or_null(struct diff_options *o,
 	unsigned flags = o->color_moved_ws_handling & XDF_WHITESPACE_FLAGS;
 
 	for (i = 0; i < pmb_nr; i++) {
+		int match;
 		struct moved_entry *prev = pmb[i].match;
 		struct moved_entry *cur = (prev && prev->next_line) ?
 				prev->next_line : NULL;
-		if (cur && xdiff_compare_lines(cur->es->line, cur->es->len,
-						l->line, l->len,
-						flags)) {
-			pmb[i].match = cur;
-		} else {
-			pmb[i].match = NULL;
-		}
-	}
-}
 
-static void pmb_advance_or_null_multi_match(struct diff_options *o,
-					    struct emitted_diff_symbol *l,
-					    struct moved_block *pmb,
-					    int pmb_nr)
-{
-	int i;
-
-	for (i = 0; i < pmb_nr; i++) {
-		struct moved_entry *prev = pmb[i].match;
-		struct moved_entry *cur = (prev && prev->next_line) ?
-			prev->next_line : NULL;
-		if (cur && !cmp_in_block_with_wsd(cur, l, &pmb[i])) {
-			/* Advance to the next line */
+		if (o->color_moved_ws_handling &
+		    COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE)
+			match = cur &&
+				!cmp_in_block_with_wsd(cur, l, &pmb[i]);
+		else
+			match = cur &&
+				xdiff_compare_lines(cur->es->line, cur->es->len,
+						    l->line, l->len, flags);
+		if (match)
 			pmb[i].match = cur;
-		} else {
+		else
 			moved_block_clear(&pmb[i]);
-		}
 	}
 }
 
@@ -1194,11 +1181,7 @@ static void mark_color_as_moved(struct diff_options *o,
 			continue;
 		}
 
-		if (o->color_moved_ws_handling &
-		    COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE)
-			pmb_advance_or_null_multi_match(o, l, pmb, pmb_nr);
-		else
-			pmb_advance_or_null(o, l, pmb, pmb_nr);
+		pmb_advance_or_null(o, l, pmb, pmb_nr);
 
 		pmb_nr = shrink_potential_moved_blocks(pmb, pmb_nr);
 
-- 
gitgitgadget




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