Updated reference split package to int64

This commit breaks package split's API to take in int64 types instead of
int. This is because CompletionEntry now uses int64 over int for
concreteness.

utils/split/split.go

@@ -12,17 +12,17 @@ var asciiSpace = [256]uint8{'\t': 1, '\n': 1, '\v': 1, '\f': 1, '\r': 1, ' ': 1}
 // SpaceIndexed returns a splitted string with the current index that
 // CompleteMessage wants. The text is the entire input string and the offset is
 // where the cursor currently is.
-func SpaceIndexed(text string, offset int) ([]string, int) {
+func SpaceIndexed(text string, offset int64) ([]string, int64) {
 	// First count the fields.
 	// This is an exact count if s is ASCII, otherwise it is an approximation.
-	n := 0
+	n := int64(0)
-	wasSpace := 1
+	wasSpace := int64(1)
 	// setBits is used to track which bits are set in the bytes of s.
 	setBits := uint8(0)
 	for i := 0; i < len(text); i++ {
 		r := text[i]
 		setBits |= r
-		isSpace := int(asciiSpace[r])
+		isSpace := int64(asciiSpace[r])
 		n += wasSpace & ^isSpace
 		wasSpace = isSpace
 	}
@@ -34,19 +34,19 @@ func SpaceIndexed(text string, offset int) ([]string, int) {
 
 	// ASCII fast path
 	a := make([]string, n)
-	na := 0
+	na := int64(0)
-	fieldStart := 0
+	fieldStart := int64(0)
-	i := 0
+	i := int64(0)
 	j := n - 1 // last by default
 
 	// Skip spaces in the front of the input.
-	for i < len(text) && asciiSpace[text[i]] != 0 {
+	for i < int64(len(text)) && asciiSpace[text[i]] != 0 {
 		i++
 	}
 
 	fieldStart = i
 
-	for i < len(text) {
+	for i < int64(len(text)) {
 		if asciiSpace[text[i]] == 0 {
 			i++
 			continue
@@ -61,37 +61,37 @@ func SpaceIndexed(text string, offset int) ([]string, int) {
 		i++
 
 		// Skip spaces in between fields.
-		for i < len(text) && asciiSpace[text[i]] != 0 {
+		for i < int64(len(text)) && asciiSpace[text[i]] != 0 {
 			i++
 		}
 		fieldStart = i
 	}
-	if fieldStart < len(text) { // Last field might end at EOF.
+	if fieldStart < int64(len(text)) { // Last field might end at EOF.
 		a[na] = text[fieldStart:]
 	}
 
 	return a, j
 }
 
-func spaceIndexedRunes(runes []rune, offset int) ([]string, int) {
+func spaceIndexedRunes(runes []rune, offset int64) ([]string, int64) {
 	// A span is used to record a slice of s of the form s[start:end].
 	// The start index is inclusive and the end index is exclusive.
-	type span struct{ start, end int }
+	type span struct{ start, end int64 }
 
 	spans := make([]span, 0, 16)
 
 	// Find the field start and end indices.
 	wasField := false
-	fromIndex := 0
+	fromIndex := int64(0)
 	for i, rune := range runes {
 		if unicode.IsSpace(rune) {
 			if wasField {
-				spans = append(spans, span{start: fromIndex, end: i})
+				spans = append(spans, span{start: fromIndex, end: int64(i)})
 				wasField = false
 			}
 		} else {
 			if !wasField {
-				fromIndex = i
+				fromIndex = int64(i)
 				wasField = true
 			}
 		}
@@ -99,18 +99,18 @@ func spaceIndexedRunes(runes []rune, offset int) ([]string, int) {
 
 	// Last field might end at EOF.
 	if wasField {
-		spans = append(spans, span{fromIndex, len(runes)})
+		spans = append(spans, span{fromIndex, int64(len(runes))})
 	}
 
 	// Create strings from recorded field indices.
 	a := make([]string, 0, len(spans))
-	j := len(spans) - 1 // assume last
+	j := int64(len(spans)) - 1 // assume last
 
 	for i, span := range spans {
 		a = append(a, string(runes[span.start:span.end]))
 
 		if span.start <= offset && offset <= span.end {
-			j = i
+			j = int64(i)
 		}
 	}
 

utils/split/split_test.go

@@ -5,9 +5,9 @@ import "testing"
 func TestSpaceIndexed(t *testing.T) {
 	var tests = []struct {
 		input  string
-		offset int
+		offset int64
 		output []string
-		index  int
+		index  int64
 	}{{
 		input:  "bruhemus momentus lorem ipsum",
 		offset: 13, //       ^
@@ -23,7 +23,7 @@ func TestSpaceIndexed(t *testing.T) {
 		index: 6,
 	}, {
 		input:  "sorry, what were you typing?",
-		offset: len("sorry, what were you typing?") - 1,
+		offset: int64(len("sorry, what were you typing?")) - 1,
 		output: []string{"sorry,", "what", "were", "you", "typing?"},
 		index:  4,
 	}, {