Merge pull request #257 from PeterBocan/master

Added a constructor to structs

examples/structs/structs.go

@@ -12,6 +12,15 @@ type person struct {
 	age  int
 }
 
+// NewPerson constructs a new person struct with the given name
+func NewPerson(name string) *person {
+	// You can safely return a pointer to local variable
+	// as a local variable will survive the scope of the function.
+	p := person{name: name}
+	p.age = 42
+	return &p
+}
+
 func main() {
 
 	// This syntax creates a new struct.
@@ -26,6 +35,9 @@ func main() {
 	// An `&` prefix yields a pointer to the struct.
 	fmt.Println(&person{name: "Ann", age: 40})
 
+	// It's idiomatic to encapsulate new struct creation in constructor functions
+	fmt.Println(NewPerson("Jon"))
+
 	// Access struct fields with a dot.
 	s := person{name: "Sean", age: 50}
 	fmt.Println(s.name)

examples/structs/structs.hash

@@ -1,2 +1,2 @@
-49cad39331ee5e9fb8d8dad99d3aff7f18a4e6d0
-XMZpGsF4sWM
+cd504951e9f8504c159a66714b04bfda0629e58c
+ezfE4eojTS7

examples/structs/structs.sh

@@ -6,3 +6,4 @@ $ go run structs.go
 Sean
 50
 51
+&{Jon 42}