Enforce no dependencies with depguard

Author: BooleanCat

.golangci.yml

@@ -1,49 +1,43 @@
-run:
-  # Timeout for analysis, e.g. 30s, 5m.
-  # Default: 1m
-  timeout: 3m
+run: { timeout: 3m }
 
 linters-settings:
   cyclop:
-    # The maximal code complexity to report.
-    # Default: 10
     max-complexity: 15
-    # The maximal average package complexity.
-    # If it's higher than 0.0 (float) the check is enabled
-    # Default: 0.0
     package-average: 0.5
-    # Should ignore tests.
-    # Default: false
     skip-tests: false
 
   govet:
-    # Report about shadowed variables.
-    # Default: false
     check-shadowing: true
-    # Enable all analyzers.
     enable-all: true
 
-  misspell:
-    # Correct spellings using locale preferences for US or UK.
-    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
-    # Default is to use a neutral variety of English.
-    locale: US
+  misspell: { locale: US }
+
+  depguard:
+    rules:
+      main: { allow: ["$gostd", "github.com/BooleanCat/go-functional"] }
 
 linters:
-  # Disable all linters.
-  # Default: false
   disable-all: true
-  # Enable specific linter
-  # https://golangci-lint.run/usage/linters/#enabled-by-default
   enable:
-    # Default
     - errcheck
     - gosimple
     - govet
     - ineffassign
     - staticcheck
     - unused
-    # Other linters for report card
+    - asasalint
+    - asciicheck
+    - bidichk
+    - decorder
+    - depguard
+    - durationcheck
+    - errchkjson
+    - errorlint
+    - exhaustive
+    - gochecknoglobals
+    - gocritic
+    - gosec
+    - nilerr
     - gofmt
     - gocyclo
     - misspell

iter/iter_test.go

@@ -115,7 +115,7 @@ func TestFold(t *testing.T) {
 func TestToChannel(t *testing.T) {
 	expected := 0
 	for number := range iter.ToChannel[int](iter.Lift([]int{1, 2, 3, 4})) {
-		expected += 1
+		expected++
 		assert.Equal(t, number, expected)
 	}
 }
@@ -205,7 +205,7 @@ func TestBaseIteratorChain(t *testing.T) {
 func TestBaseIteratorToChannel(t *testing.T) {
 	expected := 0
 	for number := range iter.Lift([]int{1, 2, 3, 4}).ToChannel() {
-		expected += 1
+		expected++
 		assert.Equal(t, number, expected)
 	}
 }

iter/take.go

@@ -27,7 +27,7 @@ func (iter *TakeIter[T]) Next() option.Option[T] {
 	if next.IsNone() {
 		iter.limit = 0
 	} else {
-		iter.limit -= 1
+		iter.limit--
 	}
 
 	return next