code: remove unused functions/conversions

cache/diff.go

@@ -14,12 +14,6 @@ import (
 	"github.com/omniscale/imposm3/element"
 )
 
-type byInt64 []int64
-
-func (a byInt64) Len() int           { return len(a) }
-func (a byInt64) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a byInt64) Less(i, j int) bool { return a[i] < a[j] }
-
 type DiffCache struct {
 	Dir       string
 	Coords    *CoordsRefIndex    // Stores which ways a coord references

database/postgis/columns.go

@@ -27,14 +27,6 @@ func (t *simpleColumnType) GeneralizeSql(colSpec *ColumnSpec, spec *GeneralizedT
 	return "\"" + colSpec.Name + "\""
 }
 
-type hstoreColumnType struct {
-	simpleColumnType
-}
-
-func (t *hstoreColumnType) PrepareInsertSql(i int, spec *TableSpec) string {
-	return fmt.Sprintf("$%d::hstore", i)
-}
-
 type geometryType struct {
 	name string
 }

expire/tilelist.go

@@ -54,12 +54,6 @@ type tileKey struct {
 	Y uint32
 }
 
-type tile struct {
-	x uint32
-	y uint32
-	z uint32
-}
-
 func NewTileList(zoom int, out string) *TileList {
 	return &TileList{
 		tiles: make(map[tileKey]struct{}),

geom/geojson/geojson.go

@@ -19,11 +19,6 @@ type object struct {
 	Properties  map[string]interface{} `json:"properties"`
 }
 
-type geometry struct {
-	Type        string        `json:"type"`
-	Coordinates []interface{} `json:"coordinates"`
-}
-
 type Point struct {
 	Long float64
 	Lat  float64
@@ -72,11 +67,6 @@ func newLineStringFromCoords(coords []interface{}) (LineString, error) {
 
 type Polygon []LineString
 
-type polygonFeature struct {
-	polygon    Polygon
-	properties map[string]string
-}
-
 type Feature struct {
 	Polygon    Polygon
 	Properties map[string]string

mapping/columns.go

@@ -409,15 +409,3 @@ func MakeSuffixReplace(columnName string, columnType ColumnType, column config.C
 
 	return suffixReplace, nil
 }
-
-func asHex(b []byte) string {
-	digits := "0123456789ABCDEF"
-	buf := make([]byte, 0, len(b)*2)
-	n := len(b)
-
-	for i := 0; i < n; i++ {
-		c := b[i]
-		buf = append(buf, digits[c>>4], digits[c&0xF])
-	}
-	return string(buf)
-}

mapping/mapping.go

@@ -366,14 +366,14 @@ func (m *Mapping) addFilters(filters tableElementFilters) {
 			log.Print("warn: exclude_tags filter is deprecated and will be removed. See require and reject filter.")
 			for _, filterKeyVal := range *t.Filters.ExcludeTags {
 				// Convert `exclude_tags`` filter to `reject` filter !
-				keyname := string(filterKeyVal[0])
+				keyname := filterKeyVal[0]
 				vararr := []config.OrderedValue{
 					{
 						Value: config.Value(filterKeyVal[1]),
 						Order: 1,
 					},
 				}
-				filters[name] = append(filters[name], makeFiltersFunction(name, false, true, string(keyname), vararr))
+				filters[name] = append(filters[name], makeFiltersFunction(name, false, true, keyname, vararr))
 
 			}
 		}

parser/pbf/pbf.go

@@ -7,14 +7,6 @@ import (
 
 const coord_factor float64 = 11930464.7083 // ((2<<31)-1)/360.0
 
-func coordToInt(coord float64) uint32 {
-	return uint32((coord + 180.0) * coord_factor)
-}
-
-func intToCoord(coord uint32) float64 {
-	return float64((float64(coord) / coord_factor) - 180.0)
-}
-
 func readDenseNodes(
 	dense *osmpbf.DenseNodes,
 	block *osmpbf.PrimitiveBlock,