Move examples into a separate module

.github/workflows/main.yml

@@ -3,15 +3,14 @@ on:
   pull_request:
   push:
 env:
-  GOFUMPT_VERSION: 0.6.0
-  GOTOOLCHAIN: local
-  GOLANGCI_LINT_VERSION: 1.59.1
+  GOFUMPT_VERSION: 0.7.0
+  GOLANGCI_LINT_VERSION: 1.63.4
 jobs:
   linux:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
-    - uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+    - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a
       with:
         cache: true
         go-version-file: go.mod
@@ -30,8 +29,8 @@ jobs:
   darwin:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
-    - uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+    - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a
       with:
         cache: true
         go-version-file: go.mod
@@ -42,8 +41,8 @@ jobs:
   windows:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
-    - uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+    - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a
       with:
         cache: true
         go-version-file: go.mod
@@ -54,12 +53,12 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
-      - uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a
         with:
           cache: true
           go-version-file: go.mod
-      - uses: golangci/golangci-lint-action@aaa42aa0628b4ae2578232a66b541047968fac86
+      - uses: golangci/golangci-lint-action@971e284b6050e8a5849b72094c50ab08da042db8
         with:
           version: v${{ env.GOLANGCI_LINT_VERSION }}
       - name: format

.golangci.yml

@@ -1,3 +1,6 @@
+run:
+  go: '1.22'
+
 linters:
   enable:
   - asasalint
@@ -16,7 +19,6 @@ linters:
   - errcheck
   - errchkjson
   - errorlint
-  - exportloopref
   - fatcontext
   - forbidigo
   - forcetypeassert
@@ -33,7 +35,6 @@ linters:
   - gomoddirectives
   - gomodguard
   - goprintffuncname
-  - gosec
   - gosimple
   - gosmopolitan
   - govet
@@ -82,6 +83,14 @@ linters:
   - wastedassign
   - whitespace
   - zerologlint
+  - copyloopvar
+  - exptostd
+  - iface
+  - goheader
+  - intrange
+  - nilnesserr
+  - recvcheck
+  - usetesting
   disable:
   - cyclop
   - depguard
@@ -94,8 +103,7 @@ linters:
   - goconst
   - gocyclo
   - godox
-  - goheader
-  - gomnd
+  - mnd
   - lll
   - maintidx
   - nestif
@@ -108,6 +116,7 @@ linters:
   - varnamelen
   - wrapcheck
   - wsl
+  - gosec
 
 linters-settings:
   gci:

bounds.go

@@ -12,14 +12,14 @@ type Bounds struct {
 // NewBounds creates a new Bounds.
 func NewBounds(layout Layout) *Bounds {
 	stride := layout.Stride()
-	min, max := make(Coord, stride), make(Coord, stride)
-	for i := 0; i < stride; i++ {
-		min[i], max[i] = math.Inf(1), math.Inf(-1)
+	minValue, maxValue := make(Coord, stride), make(Coord, stride)
+	for i := range stride {
+		minValue[i], maxValue[i] = math.Inf(1), math.Inf(-1)
 	}
 	return &Bounds{
 		layout: layout,
-		min:    min,
-		max:    max,
+		min:    minValue,
+		max:    maxValue,
 	}
 }
 
@@ -103,19 +103,19 @@ func (b *Bounds) Set(args ...float64) *Bounds {
 	}
 	stride := len(args) / 2
 	b.extendStride(stride)
-	for i := 0; i < stride; i++ {
+	for i := range stride {
 		b.min[i], b.max[i] = args[i], args[i+stride]
 	}
 	return b
 }
 
 // SetCoords sets the minimum and maximum values of the Bounds.
-func (b *Bounds) SetCoords(min, max Coord) *Bounds {
+func (b *Bounds) SetCoords(minCoord, maxCoord Coord) *Bounds {
 	b.min = Coord(make([]float64, b.layout.Stride()))
 	b.max = Coord(make([]float64, b.layout.Stride()))
-	for i := 0; i < b.layout.Stride(); i++ {
-		b.min[i] = math.Min(min[i], max[i])
-		b.max[i] = math.Max(min[i], max[i])
+	for i := range b.layout.Stride() {
+		b.min[i] = math.Min(minCoord[i], maxCoord[i])
+		b.max[i] = math.Max(minCoord[i], maxCoord[i])
 	}
 	return b
 }
@@ -134,7 +134,7 @@ func (b *Bounds) OverlapsPoint(layout Layout, point Coord) bool {
 func (b *Bounds) extendFlatCoords(flatCoords []float64, offset, end, stride int) *Bounds {
 	b.extendStride(stride)
 	for i := offset; i < end; i += stride {
-		for j := 0; j < stride; j++ {
+		for j := range stride {
 			b.min[j] = math.Min(b.min[j], flatCoords[i+j])
 			b.max[j] = math.Max(b.max[j], flatCoords[i+j])
 		}

encoding/ewkb/ewkb.go

@@ -100,7 +100,7 @@ func Read(r io.Reader) (geom.T, error) {
 			return nil, wkbcommon.ErrGeometryTooLarge{Level: 1, N: int(n), Limit: limit}
 		}
 		mp := geom.NewMultiPoint(layout).SetSRID(int(srid))
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r)
 			if err != nil {
 				return nil, err
@@ -123,7 +123,7 @@ func Read(r io.Reader) (geom.T, error) {
 			return nil, wkbcommon.ErrGeometryTooLarge{Level: 2, N: int(n), Limit: limit}
 		}
 		mls := geom.NewMultiLineString(layout).SetSRID(int(srid))
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r)
 			if err != nil {
 				return nil, err
@@ -146,7 +146,7 @@ func Read(r io.Reader) (geom.T, error) {
 			return nil, wkbcommon.ErrGeometryTooLarge{Level: 3, N: int(n), Limit: limit}
 		}
 		mp := geom.NewMultiPolygon(layout).SetSRID(int(srid))
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r)
 			if err != nil {
 				return nil, err
@@ -169,7 +169,7 @@ func Read(r io.Reader) (geom.T, error) {
 			return nil, wkbcommon.ErrGeometryTooLarge{Level: 1, N: int(n), Limit: limit}
 		}
 		gc := geom.NewGeometryCollection().SetSRID(int(srid))
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r)
 			if err != nil {
 				return nil, err
@@ -274,7 +274,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T) error {
 		if err := binary.Write(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.Point(i)); err != nil {
 				return err
 			}
@@ -285,7 +285,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T) error {
 		if err := binary.Write(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.LineString(i)); err != nil {
 				return err
 			}
@@ -296,7 +296,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T) error {
 		if err := binary.Write(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.Polygon(i)); err != nil {
 				return err
 			}
@@ -307,7 +307,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T) error {
 		if err := binary.Write(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.Geom(i)); err != nil {
 				return err
 			}

encoding/geojson/geojson.go

@@ -250,7 +250,7 @@ func (c *nestedFloat64WithMaxDecimalDigits) marshalJSON(
 	switch val.Kind() {
 	case reflect.Slice:
 		buf = append(buf, '[')
-		for i := 0; i < val.Len(); i++ {
+		for i := range val.Len() {
 			if i > 0 {
 				buf = append(buf, ',')
 			}

encoding/igc/decode.go

@@ -70,13 +70,13 @@ func parseDec(s string, start, stop int) (int, error) {
 
 // parseDecInRange parsers a decimal value in s[start:stop], and returns an
 // error if it is outside the range [min, max).
-func parseDecInRange(s string, start, stop, min, max int) (int, error) {
+func parseDecInRange(s string, start, stop, minValue, maxValue int) (int, error) {
 	result, err := parseDec(s, start, stop)
 	switch {
 	case err != nil:
 		return result, err
-	case result < min || max <= result:
-		return result, fmt.Errorf("value out of range: %d, want %d-%d", result, min, max)
+	case result < minValue || maxValue <= result:
+		return result, fmt.Errorf("value out of range: %d, want %d-%d", result, minValue, maxValue)
 	}
 	return result, nil
 }
@@ -255,7 +255,7 @@ func (p *parser) parseI(line string) error {
 	if len(line) < 7*n+3 {
 		return fmt.Errorf("invalid I record length: %d, want %d", len(line), 7*n+3)
 	}
-	for i := 0; i < n; i++ {
+	for i := range n {
 		var start, stop int
 		if start, err = parseDec(line, 7*i+3, 7*i+5); err != nil {
 			return err

encoding/igc/encode.go

@@ -18,12 +18,12 @@ type Encoder struct {
 // An EncoderOption sets an option on an Encoder.
 type EncoderOption func(*Encoder)
 
-func clamp(x, min, max int) int {
+func clamp(x, minValue, maxValue int) int {
 	switch {
-	case x < min:
-		return min
-	case x > max:
-		return max
+	case x < minValue:
+		return minValue
+	case x > maxValue:
+		return maxValue
 	default:
 		return x
 	}

encoding/wkb/sql_example_test.go

@@ -160,7 +160,6 @@ func Example_value_different_shapes() {
 	}
 
 	for _, s := range shapes {
-		s := s
 		result, err := db.Exec(`INSERT INTO objects (name, location) VALUES (?, ?);`, s.Name, &s.Geom)
 		if err != nil {
 			log.Fatal(err)

encoding/wkb/wkb.go

@@ -104,7 +104,7 @@ func Read(r io.Reader, opts ...wkbcommon.WKBOption) (geom.T, error) {
 			return nil, wkbcommon.ErrGeometryTooLarge{Level: 1, N: int(n), Limit: limit}
 		}
 		mp := geom.NewMultiPoint(layout)
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r, opts...)
 			if err != nil {
 				return nil, err
@@ -127,7 +127,7 @@ func Read(r io.Reader, opts ...wkbcommon.WKBOption) (geom.T, error) {
 			return nil, wkbcommon.ErrGeometryTooLarge{Level: 2, N: int(n), Limit: limit}
 		}
 		mls := geom.NewMultiLineString(layout)
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r, opts...)
 			if err != nil {
 				return nil, err
@@ -150,7 +150,7 @@ func Read(r io.Reader, opts ...wkbcommon.WKBOption) (geom.T, error) {
 			return nil, wkbcommon.ErrGeometryTooLarge{Level: 3, N: int(n), Limit: limit}
 		}
 		mp := geom.NewMultiPolygon(layout)
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r, opts...)
 			if err != nil {
 				return nil, err
@@ -170,7 +170,7 @@ func Read(r io.Reader, opts ...wkbcommon.WKBOption) (geom.T, error) {
 			return nil, err
 		}
 		gc := geom.NewGeometryCollection()
-		for i := uint32(0); i < n; i++ {
+		for range n {
 			g, err := Read(r, opts...)
 			if err != nil {
 				return nil, err
@@ -281,7 +281,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T, opts ...wkbcommon.
 		if err := wkbcommon.WriteUInt32(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.Point(i), opts...); err != nil {
 				return err
 			}
@@ -292,7 +292,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T, opts ...wkbcommon.
 		if err := wkbcommon.WriteUInt32(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.LineString(i), opts...); err != nil {
 				return err
 			}
@@ -303,7 +303,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T, opts ...wkbcommon.
 		if err := wkbcommon.WriteUInt32(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.Polygon(i), opts...); err != nil {
 				return err
 			}
@@ -314,7 +314,7 @@ func Write(w io.Writer, byteOrder binary.ByteOrder, g geom.T, opts ...wkbcommon.
 		if err := wkbcommon.WriteUInt32(w, byteOrder, uint32(n)); err != nil {
 			return err
 		}
-		for i := 0; i < n; i++ {
+		for i := range n {
 			if err := Write(w, byteOrder, g.Geom(i), opts...); err != nil {
 				return err
 			}

encoding/wkb/wkb_test.go

@@ -340,7 +340,7 @@ func TestRandom(t *testing.T) {
 }
 
 func BenchmarkUnmarshal(b *testing.B) {
-	for n := 0; n < b.N; n++ {
+	for range b.N {
 		for _, tc := range testdata.Random {
 			if _, err := Unmarshal(tc.WKB); err != nil {
 				b.Errorf("unmarshal error %v", err)
@@ -350,7 +350,7 @@ func BenchmarkUnmarshal(b *testing.B) {
 }
 
 func BenchmarkMarshal(b *testing.B) {
-	for n := 0; n < b.N; n++ {
+	for range b.N {
 		for _, tc := range testdata.Random {
 			if _, err := Marshal(tc.G, NDR); err != nil {
 				b.Errorf("marshal error %v", err)

encoding/wkbcommon/binary.go

@@ -79,7 +79,7 @@ func WriteByte(w io.Writer, value byte) error {
 // WriteEmptyPointAsNaN outputs EmptyPoint as NaN values.
 func WriteEmptyPointAsNaN(w io.Writer, byteOrder binary.ByteOrder, numCoords int) error {
 	coords := make([]float64, numCoords)
-	for i := 0; i < numCoords; i++ {
+	for i := range numCoords {
 		coords[i] = geom.PointEmptyCoord()
 	}
 	return WriteFlatCoords0(w, byteOrder, coords)