Micro-optimizations

- Make structs smaller
- Introduce Result struct and use it to represent matched items instead of
  reusing Item struct for that purpose
- Avoid unnecessary memory allocation
- Avoid growing slice from the initial capacity
- Code cleanup

1 files changed, 3 insertions, 6 deletions

diff --git a/src/chunklist_test.go b/src/chunklist_test.go
index 2523675a..594daebb 100644
--- a/src/chunklist_test.go
+++ b/src/chunklist_test.go
@@ -12,7 +12,7 @@ func TestChunkList(t *testing.T) {
 	sortCriteria = []criterion{byMatchLen, byLength}
 
 	cl := NewChunkList(func(s []byte, i int) *Item {
-		return &Item{text: util.ToChars(s), rank: buildEmptyRank(int32(i * 2))}
+		return &Item{text: util.ToChars(s), index: int32(i * 2)}
 	})
 
 	// Snapshot
@@ -41,11 +41,8 @@ func TestChunkList(t *testing.T) {
 	if len(*chunk1) != 2 {
 		t.Error("Snapshot should contain only two items")
 	}
-	last := func(arr [5]int32) int32 {
-		return arr[len(arr)-1]
-	}
-	if (*chunk1)[0].text.ToString() != "hello" || last((*chunk1)[0].rank) != 0 ||
-		(*chunk1)[1].text.ToString() != "world" || last((*chunk1)[1].rank) != 2 {
+	if (*chunk1)[0].text.ToString() != "hello" || (*chunk1)[0].index != 0 ||
+		(*chunk1)[1].text.ToString() != "world" || (*chunk1)[1].index != 2 {
 		t.Error("Invalid data")
 	}
 	if chunk1.IsFull() {