Maintenance

README.md

@@ -13,13 +13,15 @@ It avoids duplicating functions that are already provided by
 [slices](https://pkg.go.dev/slices) and
 [maps](https://pkg.go.dev/maps).
 
-For a complete list on available functions and types, check the
+For a complete list of available functions and types, check the
 godoc documentation for this project:
 
 - [gog](https://pkg.go.dev/github.com/mokiat/gog) - general utility functions
+- [gog/constr](https://pkg.go.dev/github.com/mokiat/gog/constr) - type constraints
 - [gog/ds](https://pkg.go.dev/github.com/mokiat/gog/ds) - data structures
 - [gog/filter](https://pkg.go.dev/github.com/mokiat/gog/filter) - data filtering
 - [gog/opt](https://pkg.go.dev/github.com/mokiat/gog/opt) - optional fields and types
+- [gog/seq](https://pkg.go.dev/github.com/mokiat/gog/seq) - iterator utilities
 
 
 ## Examples

ds/list.go

@@ -6,7 +6,9 @@ import "slices"
 // used as a form of optimization. Regardless of the value, the initial size
 // of the list is zero and the list can grow past the specified capacity.
 func NewList[T comparable](initialCapacity int) *List[T] {
-	return &List[T]{}
+	return &List[T]{
+		items: make([]T, 0, initialCapacity),
+	}
 }
 
 // ListFromSlice constructs a new List that is based on the items from the
@@ -100,8 +102,8 @@ func (l *List[T]) IndexOf(item T) int {
 	return slices.Index(l.items, item)
 }
 
-// Each is a helper method allows one to iterate over all items in this List
-// through a closure function.
+// Each is a helper method that allows one to iterate over all items in this
+// List through a closure function.
 func (l *List[T]) Each(iterator func(item T)) {
 	for _, item := range l.items {
 		iterator(item)

ds/set.go

@@ -181,7 +181,7 @@ func (s *Set[T]) Items() []T {
 	return result
 }
 
-// Equals return whether this set is equal to the provided set.
+// Equals returns whether this set is equal to the provided set.
 func (s *Set[T]) Equals(other *Set[T]) bool {
 	return maps.Equal(s.items, other.items)
 }

go.mod

@@ -1,24 +1,25 @@
 module github.com/mokiat/gog
 
-go 1.25
+go 1.25.0
 
 require (
-	github.com/onsi/ginkgo/v2 v2.25.3
-	github.com/onsi/gomega v1.38.2
+	github.com/onsi/ginkgo/v2 v2.28.1
+	github.com/onsi/gomega v1.39.1
 )
 
 require (
 	github.com/Masterminds/semver/v3 v3.4.0 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
-	github.com/google/pprof v0.0.0-20250903194437-c28834ac2320 // indirect
-	go.uber.org/automaxprocs v1.6.0 // indirect
+	github.com/google/pprof v0.0.0-20260302011040-a15ffb7f9dcc // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/net v0.44.0 // indirect
-	golang.org/x/sys v0.36.0 // indirect
-	golang.org/x/text v0.29.0 // indirect
-	golang.org/x/tools v0.37.0 // indirect
+	golang.org/x/mod v0.33.0 // indirect
+	golang.org/x/net v0.51.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.41.0 // indirect
+	golang.org/x/text v0.34.0 // indirect
+	golang.org/x/tools v0.42.0 // indirect
 )
 
 tool github.com/onsi/ginkgo/v2/ginkgo

go.sum

@@ -2,40 +2,64 @@ github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1
 github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
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 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/gkampitakis/ciinfo v0.3.2 h1:JcuOPk8ZU7nZQjdUhctuhQofk7BGHuIy0c9Ez8BNhXs=
+github.com/gkampitakis/ciinfo v0.3.2/go.mod h1:1NIwaOcFChN4fa/B0hEBdAb6npDlFL8Bwx4dfRLRqAo=
+github.com/gkampitakis/go-diff v1.3.2 h1:Qyn0J9XJSDTgnsgHRdz9Zp24RaJeKMUHg2+PDZZdC4M=
+github.com/gkampitakis/go-diff v1.3.2/go.mod h1:LLgOrpqleQe26cte8s36HTWcTmMEur6OPYerdAAS9tk=
+github.com/gkampitakis/go-snaps v0.5.15 h1:amyJrvM1D33cPHwVrjo9jQxX8g/7E2wYdZ+01KS3zGE=
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 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
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 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prashantv/gostub v1.1.0 h1:BTyx3RfQjRHnUWaGF9oQos79AlQ5k8WNktv7VGvVH4g=
-github.com/prashantv/gostub v1.1.0/go.mod h1:A5zLQHz7ieHGG7is6LLXLz7I8+3LZzsrV0P1IAHhP5U=
+github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
+github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-go.uber.org/automaxprocs v1.6.0 h1:O3y2/QNTOdbF+e/dpXNNW7Rx2hZ4sTIPyybbxyNqTUs=
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 google.golang.org/protobuf v1.36.7/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

seq/range.go

@@ -7,7 +7,8 @@ func None[T any]() iter.Seq[T] {
 	return func(yield func(T) bool) {}
 }
 
-// Times returns a sequence of integers from 0 to count.
+// Times returns a sequence of integers from 0 (inclusive)
+// to count (exclusive).
 func Times(count int) iter.Seq[int] {
 	return func(yield func(int) bool) {
 		for i := range count {
@@ -18,9 +19,10 @@ func Times(count int) iter.Seq[int] {
 	}
 }
 
-// Range returns a sequence of integers from from (inclusive) to to (inclusive).
+// Range returns a sequence of integers from `from` (inclusive)
+// to `to` (inclusive).
 //
-// If from is greater than to, the sequence will be in descending order.
+// If `from` is greater than `to`, the sequence will be in descending order.
 func Range(from, to int) iter.Seq[int] {
 	return func(yield func(int) bool) {
 		if from < to {

value.go

@@ -19,8 +19,18 @@ func Must[T any](v T, err error) T {
 // Ternary is a generic ternary operator. It returns trueValue if condition is
 // true, and falseValue otherwise.
 //
-// While it can greatly reduce boilerplate code, it should be used sparingly to
-// avoid reducing code readability (e.g. avoid nesting Ternary calls).
+// BEWARE: Unlike a traditional ternary operator, both trueValue and falseValue
+// are evaluated before the condition is checked. Using it in the following way
+// would be wrong (as it would cause a panic if a is nil):
+//
+//	Ternary(a != nil, a.Value(), 0)
+//
+// Instead, it is intended to simplify basic conditional assignments,
+// for example:
+//
+//	color := Ternary(element.IsSelected, "0xFFFFFF", "0x000000")
+//
+// While it can greatly reduce boilerplate code, it should be used with care.
 func Ternary[T any](condition bool, trueValue T, falseValue T) T {
 	if condition {
 		return trueValue