9 examples of 'golang map' in Go

102
func (v *BaseApiParserVisitor) VisitMapType(ctx *MapTypeContext) interface{} {
103
	return v.VisitChildren(ctx)
104
}

9
func createMap() {
10
	//initialize map with key and value as string
11
	var stringMap = make(map[string]string)
12
13
	//add keys to map
14
	stringMap["A"] = "AAA"
15
	stringMap["B"] = "BBB"
16
	stringMap["C"] = "CCC"
17
18
	fmt.Print(stringMap)
19
20
	//delete key
21
	delete(stringMap, "A")
22
23
	//initialize map with key and value using a map literal
24
	var intMap = map[int]string{
25
		1: "one",
26
		2: "two",
27
		3: "three",
28
	}
29
30
	fmt.Print(intMap)
31
32
	//access item from map
33
	value, ok := intMap[1] //ok is true if item exists
34
	if ok {
35
		fmt.Printf("Key = 1; Value =%v", value)
36
	}
37
}

127
func (e *encoder) mapv(tag string, in reflect.Value) {
128
	e.mappingv(tag, func() {
129
		for _, k := range in.MapKeys() {
130
			e.marshal("", k)
131
			e.marshal("", in.MapIndex(k))
132
		}
133
	})
134
}

1918
func (slice stringSlice) Map(functors ...stringFunctorForMap) stringSlice {
1919
1920
	tmpSlice := slice
1921
	
1922
	for _, f := range functors {
1923
		if f == nil {
1924
			continue
1925
		}
1926
		tmpSlice = MapStr(f, tmpSlice)
1927
	}
1928
1929
	return tmpSlice
1930
}

777
func (m *DtUpdateResp) GetMapValue() []*MapEntry {
778
	if m != nil {
779
		return m.MapValue
780
	}
781
	return nil
782
}

1775
func (x *NameSpace) GetMapType() string {
1776
	if x != nil {
1777
		return x.MapType
1778
	}
1779
	return ""
1780
}

41
func testMap() {
42
	m1, m2 := make(map[int]int), make(map[int]int)
43
	m := reflect.ValueOf(m2)
44
	baseTest(func(i int) { m1[i] = i }, func(i int) {
45
		v := reflect.ValueOf(i)
46
		m.SetMapIndex(v, v)
47
	})
48
	fmt.Printf("normal	%d\n", len(m1))
49
	fmt.Printf("reflect	%d\n", len(m2))
50
}

317
func (b *TypeBuilder) Map() PendingMap {
318
	return pendingMap{b.add(&Type{kind: Map})}
319
}

13
func main() {
14
	valueOf := reflect.ValueOf
15
	m := map[string]int{"Unix": 1973, "Windows": 1985}
16
	v := valueOf(m)
17
	// A zero second Value argument means to delete an entry.
18
	v.SetMapIndex(valueOf("Windows"), reflect.Value{})
19
	v.SetMapIndex(valueOf("Linux"), valueOf(1991))
20
	//Please note that, the MapRange method is supported since Go 1.12.
21
	for i := v.MapRange(); i.Next(); {
22
		fmt.Println(i.Key(), "\t:", i.Value())
23
	}
24
}