├── go.mod ├── .gitignore ├── CONTRIBUTING.md ├── examples_test.go ├── runemap_test.go ├── bytemap_test.go ├── README.md ├── runemap.go ├── bytemap.go ├── doc.go ├── benchmark_test.go └── LICENSE /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/google/triemap 2 | 3 | go 1.14 4 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Binaries for programs and plugins 2 | *.exe 3 | *.exe~ 4 | *.dll 5 | *.so 6 | *.dylib 7 | 8 | # Test binary, built with `go test -c` 9 | *.test 10 | 11 | # Output of the go coverage tool, specifically when used with LiteIDE 12 | *.out 13 | 14 | # Random files created by OS or IDE 15 | .DS_Store 16 | .idea/ 17 | 18 | # Dependency directories (remove the comment below to include it) 19 | # vendor/ 20 | -------------------------------------------------------------------------------- /CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | # How to Contribute 2 | 3 | We'd love to accept your patches and contributions to this project. There are 4 | just a few small guidelines you need to follow. 5 | 6 | ## Contributor License Agreement 7 | 8 | Contributions to this project must be accompanied by a Contributor License 9 | Agreement (CLA). You (or your employer) retain the copyright to your 10 | contribution; this simply gives us permission to use and redistribute your 11 | contributions as part of the project. Head over to 12 | to see your current agreements on file or 13 | to sign a new one. 14 | 15 | You generally only need to submit a CLA once, so if you've already submitted one 16 | (even if it was for a different project), you probably don't need to do it 17 | again. 18 | 19 | ## Code reviews 20 | 21 | All submissions, including submissions by project members, require review. We 22 | use GitHub pull requests for this purpose. Consult 23 | [GitHub Help](https://help.github.com/articles/about-pull-requests/) for more 24 | information on using pull requests. 25 | 26 | ## Community Guidelines 27 | 28 | This project follows 29 | [Google's Open Source Community Guidelines](https://opensource.google/conduct/). 30 | 31 | -------------------------------------------------------------------------------- /examples_test.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Google LLC 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package triemap_test 16 | 17 | import ( 18 | "fmt" 19 | 20 | "github.com/google/triemap" 21 | ) 22 | 23 | func ExampleRuneSliceMap() { 24 | var m triemap.RuneSliceMap 25 | 26 | m.PutString("foo", 123) 27 | m.Put([]rune{'b', 'a', 'r'}, 456) 28 | 29 | v, ok := m.Get([]rune{'f', 'o', 'o'}) 30 | fmt.Println("Get([]rune{'f', 'o', 'o'}):", v, ok) 31 | 32 | v, ok = m.GetString("bar") 33 | fmt.Println("GetString('bar'):", v, ok) 34 | 35 | v, ok = m.GetString("baz") 36 | fmt.Println("GetString('baz'):", v, ok) 37 | // Output: Get([]rune{'f', 'o', 'o'}): 123 true 38 | // GetString('bar'): 456 true 39 | // GetString('baz'): false 40 | } 41 | -------------------------------------------------------------------------------- /runemap_test.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Google LLC 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package triemap 16 | 17 | import ( 18 | "testing" 19 | ) 20 | 21 | func TestRuneMap(t *testing.T) { 22 | var m RuneSliceMap 23 | m.Put([]rune{'f', 'ಠ', 'o'}, 123) 24 | m.PutString("foo", 456) 25 | 26 | v1, ok1 := m.GetString("fಠo") 27 | if !ok1 { 28 | t.Error("GetString('fಠo') ok=false, want: true") 29 | } 30 | if got, want := v1.(int), 123; got != want { 31 | t.Errorf("GetString('fಠo')=%v, want: %v", got, want) 32 | } 33 | 34 | v2, ok2 := m.Get([]rune{'f', 'o', 'o'}) 35 | if !ok2 { 36 | t.Error("Get('foo') ok=false, want: true") 37 | } 38 | if got, want := v2.(int), 456; got != want { 39 | t.Errorf("Get('foo')=%v, want: %v", got, want) 40 | } 41 | } 42 | 43 | func TestRuneMapMissingValue(t *testing.T) { 44 | var m RuneSliceMap 45 | m.PutString("foo", nil) 46 | 47 | v1, ok1 := m.GetString("fಠo") 48 | if ok1 { 49 | t.Error("GetString('fಠo') ok=true, want: false") 50 | } 51 | if v1 != nil { 52 | t.Errorf("GetString('fಠo')=%v, want want nil", v1) 53 | } 54 | 55 | v2, ok2 := m.Get([]rune{'f', 'o', 'o'}) 56 | if !ok2 { 57 | t.Error("Get('foo') ok=false, want: true") 58 | } 59 | if v2 != nil { 60 | t.Errorf("Get('foo')=%v, want: nil", v2) 61 | } 62 | } 63 | -------------------------------------------------------------------------------- /bytemap_test.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Google LLC 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package triemap 16 | 17 | import ( 18 | "testing" 19 | ) 20 | 21 | func TestByteMap(t *testing.T) { 22 | var m ByteSliceMap 23 | ಠ := []byte("fಠo") 24 | 25 | m.Put(ಠ, 123) 26 | m.PutString("foo", 456) 27 | 28 | v1, ok1 := m.GetString("fಠo") 29 | if !ok1 { 30 | t.Error("GetString('fಠo') ok=false, want: true") 31 | } 32 | if got, want := v1.(int), 123; got != want { 33 | t.Errorf("GetString('fಠo')=%v, want: %v", got, want) 34 | } 35 | 36 | v2, ok2 := m.Get([]byte{'f', 'o', 'o'}) 37 | if !ok2 { 38 | t.Error("Get('foo') ok=false, want: true") 39 | } 40 | if got, want := v2.(int), 456; got != want { 41 | t.Errorf("Get('foo')=%v, want: %v", got, want) 42 | } 43 | } 44 | 45 | func TestByteMapMissingValue(t *testing.T) { 46 | var m ByteSliceMap 47 | m.PutString("foo", nil) 48 | 49 | v1, ok1 := m.GetString("fಠo") 50 | if ok1 { 51 | t.Error("GetString('fಠo') ok=true, want: false") 52 | } 53 | if v1 != nil { 54 | t.Errorf("GetString('fಠo')=%v, want want nil", v1) 55 | } 56 | 57 | v2, ok2 := m.Get([]byte{'f', 'o', 'o'}) 58 | if !ok2 { 59 | t.Error("Get('foo') ok=false, want: true") 60 | } 61 | if v2 != nil { 62 | t.Errorf("Get('foo')=%v, want: nil", v2) 63 | } 64 | } 65 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # triemap 2 | Map using `[]rune` or `[]byte` instead of `string` 3 | 4 | > Disclaimer: This is not an official Google product. 5 | 6 | * `RuneSliceMap` is much faster than casting and using a map like: `map[string(slice)]`. 7 | * `ByteSliceMap` is considerably slower than standard maps, but it reduces allocations. 8 | 9 | ## Usage 10 | 11 | ```go 12 | var m triemap.RuneSliceMap 13 | 14 | m.PutString("foo", 123) 15 | m.Put([]rune{'b', 'a', 'r'}, 456) 16 | 17 | v, ok := m.Get([]rune{'f', 'o', 'o'}) 18 | fmt.Println(v, ok) // 123, true 19 | 20 | v, ok = m.GetString("bar") 21 | fmt.Println(v, ok) // 456, true 22 | 23 | v, ok = m.GetString("baz") 24 | fmt.Println(v, ok) // nil, baz 25 | ``` 26 | 27 | ## Benchmarks 28 | 29 | ``` 30 | name time/op 31 | GetByteMap20/ByteMap-16 1.82µs ± 0% 32 | GetByteMap20/StdMap-16 883ns ±14% 33 | GetRuneMap20/RuneMap-16 639ns ± 0% 34 | GetRuneMap20/StdMap-16 1.45µs ± 5% 35 | PutByteMap20/ByteMap-16 2.13µs ± 2% 36 | PutByteMap20/StdMap-16 579ns ± 6% 37 | PutRuneMap20/RuneMap-16 1.09µs ± 5% 38 | PutRuneMap20/StdMap-16 1.26µs ± 4% 39 | 40 | name alloc/op 41 | GetByteMap20/ByteMap-16 0.00B 42 | GetByteMap20/StdMap-16 320B ± 0% 43 | GetRuneMap20/RuneMap-16 0.00B 44 | GetRuneMap20/StdMap-16 320B ± 0% 45 | PutByteMap20/ByteMap-16 320B ± 0% 46 | PutByteMap20/StdMap-16 128B ± 0% 47 | PutRuneMap20/RuneMap-16 320B ± 0% 48 | PutRuneMap20/StdMap-16 208B ± 0% 49 | 50 | name allocs/op 51 | GetByteMap20/ByteMap-16 0.00 52 | GetByteMap20/StdMap-16 20.0 ± 0% 53 | GetRuneMap20/RuneMap-16 0.00 54 | GetRuneMap20/StdMap-16 20.0 ± 0% 55 | PutByteMap20/ByteMap-16 20.0 ± 0% 56 | PutByteMap20/StdMap-16 19.0 ± 0% 57 | PutRuneMap20/RuneMap-16 20.0 ± 0% 58 | PutRuneMap20/StdMap-16 20.0 ± 0% 59 | ``` 60 | 61 | ## Code of Conduct 62 | 63 | [Same as Go](https://golang.org/conduct) 64 | 65 | ## Contributing 66 | 67 | Read our [contributions](CONTRIBUTING.md) doc. 68 | 69 | tl;dr: Get Google's CLA and send a PR! 70 | 71 | ## Licence 72 | 73 | [Apache 2.0](LICENSE) 74 | -------------------------------------------------------------------------------- /runemap.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Google LLC 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package triemap 16 | 17 | // RuneSliceMap emulates `map[[]rune]interface{}`, implemented as a Trie. 18 | type RuneSliceMap struct { 19 | value interface{} 20 | children map[rune]*RuneSliceMap 21 | } 22 | 23 | // PutString is a convenience method to insert a value using a string key. 24 | func (n *RuneSliceMap) PutString(s string, v interface{}) *RuneSliceMap { 25 | return n.Put([]rune(s), v) 26 | } 27 | 28 | // Put inserts a value into the `RuneMap` using `[]rune` as a key 29 | func (n *RuneSliceMap) Put(s []rune, v interface{}) *RuneSliceMap { 30 | for _, r := range s { 31 | n = n.put(r) 32 | } 33 | n.value = v 34 | return n 35 | } 36 | 37 | func (n *RuneSliceMap) put(r rune) *RuneSliceMap { 38 | if child, ok := n.children[r]; ok { 39 | return child 40 | } 41 | var child RuneSliceMap 42 | if n.children == nil { 43 | n.children = map[rune]*RuneSliceMap{r: &child} 44 | } else { 45 | n.children[r] = &child 46 | } 47 | return &child 48 | } 49 | 50 | // Get returns a value as mapped by the `[]rune` key and a boolean of whether the value exists in the map. 51 | func (n *RuneSliceMap) Get(s []rune) (interface{}, bool) { 52 | for _, r := range s { 53 | var ok bool 54 | if n, ok = n.children[r]; !ok { 55 | return nil, false 56 | } 57 | } 58 | return n.value, true 59 | } 60 | 61 | // GetString is a convenience method to get a value using a string key. 62 | // 63 | // See: `Get` 64 | func (n *RuneSliceMap) GetString(s string) (interface{}, bool) { 65 | return n.Get([]rune(s)) 66 | } 67 | -------------------------------------------------------------------------------- /bytemap.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Google LLC 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package triemap 16 | 17 | // ByteSliceMap emulates `map[[]byte]interface{}`, implemented as a Trie. 18 | // 19 | // It seems to perform worse than `map[string]interface{}` even when casting `string([]byte)` 20 | type ByteSliceMap struct { 21 | value interface{} 22 | children map[byte]*ByteSliceMap 23 | } 24 | 25 | // PutString is a convenience method to insert a value using a string key. 26 | func (n *ByteSliceMap) PutString(s string, v interface{}) *ByteSliceMap { 27 | return n.Put([]byte(s), v) 28 | } 29 | 30 | // Put inserts a value into the `ByteMap` using `[]byte` as a key 31 | func (n *ByteSliceMap) Put(s []byte, v interface{}) *ByteSliceMap { 32 | for _, r := range s { 33 | n = n.put(r) 34 | } 35 | n.value = v 36 | return n 37 | } 38 | 39 | func (n *ByteSliceMap) put(r byte) *ByteSliceMap { 40 | if child, ok := n.children[r]; ok { 41 | return child 42 | } 43 | var child ByteSliceMap 44 | if n.children == nil { 45 | n.children = map[byte]*ByteSliceMap{r: &child} 46 | } else { 47 | n.children[r] = &child 48 | } 49 | return &child 50 | } 51 | 52 | // Get returns a value as mapped by the `[]byte` key and a boolean of whether the value exists in the map. 53 | func (n *ByteSliceMap) Get(s []byte) (interface{}, bool) { 54 | for _, r := range s { 55 | var ok bool 56 | if n, ok = n.children[r]; !ok { 57 | return nil, false 58 | } 59 | } 60 | return n.value, true 61 | } 62 | 63 | // GetString is a convenience method to get a value using a string key. 64 | // 65 | // See: `Get` 66 | func (n *ByteSliceMap) GetString(s string) (interface{}, bool) { 67 | return n.Get([]byte(s)) 68 | } 69 | -------------------------------------------------------------------------------- /doc.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Google LLC 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | // Package triemap allows creating a map out of `[]rune` and `[]byte` without casting with 16 | // `string(v)`. 17 | // 18 | // Due to lack of generics the values are stored and retrieved as `interface{}` and require type 19 | // asserting like `m.Get(k).(Foo)`. 20 | // 21 | // Compared to casting a rune or byte slice to a string, putting data in the map is actually better 22 | // using the std map like `m[string(k)] = v`, however getting data out of the map is much faster 23 | // with the `RuneSliceMap`. 24 | // 25 | // name time/op 26 | // GetByteMap20/ByteMap-16 1.82µs ± 0% 27 | // GetByteMap20/StdMap-16 883ns ±14% 28 | // GetRuneMap20/RuneMap-16 639ns ± 0% 29 | // GetRuneMap20/StdMap-16 1.45µs ± 5% 30 | // PutByteMap20/ByteMap-16 2.13µs ± 2% 31 | // PutByteMap20/StdMap-16 579ns ± 6% 32 | // PutRuneMap20/RuneMap-16 1.09µs ± 5% 33 | // PutRuneMap20/StdMap-16 1.26µs ± 4% 34 | // 35 | // name alloc/op 36 | // GetByteMap20/ByteMap-16 0.00B 37 | // GetByteMap20/StdMap-16 320B ± 0% 38 | // GetRuneMap20/RuneMap-16 0.00B 39 | // GetRuneMap20/StdMap-16 320B ± 0% 40 | // PutByteMap20/ByteMap-16 320B ± 0% 41 | // PutByteMap20/StdMap-16 128B ± 0% 42 | // PutRuneMap20/RuneMap-16 320B ± 0% 43 | // PutRuneMap20/StdMap-16 208B ± 0% 44 | // 45 | // name allocs/op 46 | // GetByteMap20/ByteMap-16 0.00 47 | // GetByteMap20/StdMap-16 20.0 ± 0% 48 | // GetRuneMap20/RuneMap-16 0.00 49 | // GetRuneMap20/StdMap-16 20.0 ± 0% 50 | // PutByteMap20/ByteMap-16 20.0 ± 0% 51 | // PutByteMap20/StdMap-16 19.0 ± 0% 52 | // PutRuneMap20/RuneMap-16 20.0 ± 0% 53 | // PutRuneMap20/StdMap-16 20.0 ± 0% 54 | // 55 | // `ByteSliceMap` is always slower than casting to string and using a standard map, but it 56 | // reduces allocations, so it's a decent alternative on memory-constrained resources. 57 | // 58 | // `RuneSliceMap` performs much faster and produces less allocations than casting to string and 59 | // using standard maps. 60 | package triemap 61 | -------------------------------------------------------------------------------- /benchmark_test.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Google LLC 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package triemap 16 | 17 | import "testing" 18 | 19 | var ( 20 | keys = []string{ 21 | "Lorem", 22 | "ipsum", 23 | "dolor", 24 | "sit", 25 | "amet", 26 | "consectetur", 27 | "adipiscing", 28 | "elit", 29 | "Donec", 30 | "euismod", 31 | "leo", 32 | "id", 33 | "laoreet", 34 | "feugiat", 35 | "augue", 36 | "magna", 37 | "tincidunt", 38 | "dolor", 39 | "a", 40 | "rhoncus", 41 | } 42 | 43 | values = []string{ 44 | "rhoncus", 45 | "a", 46 | "dolor", 47 | "tincidunt", 48 | "magna", 49 | "augue", 50 | "feugiat", 51 | "laoreet", 52 | "id", 53 | "leo", 54 | "euismod", 55 | "Donec", 56 | "elit", 57 | "adipiscing", 58 | "consectetur", 59 | "amet", 60 | "sit", 61 | "dolor", 62 | "ipsum", 63 | "Lorem", 64 | } 65 | ) 66 | 67 | func BenchmarkPutRuneMap20(b *testing.B) { 68 | var runeKeys [][]rune 69 | for _, v := range keys { 70 | runeKeys = append(runeKeys, []rune(v)) 71 | } 72 | 73 | runeMaps := make([]RuneSliceMap, 20) 74 | stdMaps := make([]map[string]string, 20) 75 | for i := range stdMaps { 76 | stdMaps[i] = make(map[string]string) 77 | } 78 | 79 | testCases := []struct { 80 | desc string 81 | put func(int, []rune, string) 82 | }{ 83 | { 84 | "RuneMap", 85 | func(i int, key []rune, v string) { runeMaps[i].Put(key, v) }, 86 | }, 87 | { 88 | "StdMap", 89 | func(i int, key []rune, v string) { stdMaps[i][string(key)] = v }, 90 | }, 91 | } 92 | 93 | b.ResetTimer() 94 | for _, tc := range testCases { 95 | b.Run(tc.desc, func(b *testing.B) { 96 | for i := 0; i < b.N; i++ { 97 | for j := 0; j < 20; j++ { 98 | tc.put(j, runeKeys[j], values[j]) 99 | } 100 | } 101 | }) 102 | } 103 | } 104 | 105 | func BenchmarkGetRuneMap20(b *testing.B) { 106 | var runeKeys [][]rune 107 | for _, v := range keys { 108 | runeKeys = append(runeKeys, []rune(v)) 109 | } 110 | 111 | var r RuneSliceMap 112 | m := make(map[string]string) 113 | for j := 0; j < 20; j++ { 114 | r.Put(runeKeys[j], values[j]) 115 | m[keys[j]] = values[j] 116 | } 117 | 118 | testCases := []struct { 119 | desc string 120 | get func([]rune) (interface{}, bool) 121 | }{ 122 | {"RuneMap", func(key []rune) (interface{}, bool) { return r.Get(key) }}, 123 | {"StdMap", func(key []rune) (interface{}, bool) { 124 | v, ok := m[string(key)] 125 | return v, ok 126 | }}, 127 | } 128 | 129 | b.ResetTimer() 130 | for _, tc := range testCases { 131 | b.Run(tc.desc, func(b *testing.B) { 132 | for i := 0; i < b.N; i++ { 133 | for j := 0; j < 20; j++ { 134 | _, _ = tc.get(runeKeys[j]) 135 | } 136 | } 137 | }) 138 | } 139 | } 140 | 141 | func BenchmarkPutByteMap20(b *testing.B) { 142 | var byteKeys [][]byte 143 | for _, v := range keys { 144 | byteKeys = append(byteKeys, []byte(v)) 145 | } 146 | 147 | byteMaps := make([]ByteSliceMap, 20) 148 | stdMaps := make([]map[string]string, 20) 149 | for i := range stdMaps { 150 | stdMaps[i] = make(map[string]string) 151 | } 152 | 153 | testCases := []struct { 154 | desc string 155 | put func(int, []byte, string) 156 | }{ 157 | { 158 | "ByteMap", 159 | func(i int, key []byte, v string) { byteMaps[i].Put(key, v) }, 160 | }, 161 | { 162 | "StdMap", 163 | func(i int, key []byte, v string) { stdMaps[i][string(key)] = v }, 164 | }, 165 | } 166 | 167 | b.ResetTimer() 168 | for _, tc := range testCases { 169 | b.Run(tc.desc, func(b *testing.B) { 170 | for i := 0; i < b.N; i++ { 171 | for j := 0; j < 20; j++ { 172 | tc.put(j, byteKeys[j], values[j]) 173 | } 174 | } 175 | }) 176 | } 177 | } 178 | 179 | func BenchmarkGetByteMap20(b *testing.B) { 180 | var byteKeys [][]byte 181 | for _, v := range keys { 182 | byteKeys = append(byteKeys, []byte(v)) 183 | } 184 | 185 | var r ByteSliceMap 186 | m := make(map[string]string) 187 | for j := 0; j < 20; j++ { 188 | r.Put(byteKeys[j], values[j]) 189 | m[keys[j]] = values[j] 190 | } 191 | 192 | testCases := []struct { 193 | desc string 194 | get func([]byte) (interface{}, bool) 195 | }{ 196 | {"ByteMap", func(key []byte) (interface{}, bool) { return r.Get(key) }}, 197 | {"StdMap", func(key []byte) (interface{}, bool) { 198 | v, ok := m[string(key)] 199 | return v, ok 200 | }}, 201 | } 202 | 203 | b.ResetTimer() 204 | for _, tc := range testCases { 205 | b.Run(tc.desc, func(b *testing.B) { 206 | for i := 0; i < b.N; i++ { 207 | for j := 0; j < 20; j++ { 208 | _, _ = tc.get(byteKeys[j]) 209 | } 210 | } 211 | }) 212 | } 213 | } 214 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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