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parser: Tune stringifyMapKeys

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```bash
benchmark                                               old ns/op     new ns/op     delta
BenchmarkStringifyMapKeysStringsOnlyInterfaceMaps-4     3269          3053          -6.61%
BenchmarkStringifyMapKeysStringsOnlyStringMaps-4        4.79          5.23          +9.19%
BenchmarkStringifyMapKeysIntegers-4                     2707          2320          -14.30%

benchmark                                               old allocs     new allocs     delta
BenchmarkStringifyMapKeysStringsOnlyInterfaceMaps-4     16             6              -62.50%
BenchmarkStringifyMapKeysStringsOnlyStringMaps-4        0              0              +0.00%
BenchmarkStringifyMapKeysIntegers-4                     16             6              -62.50%

benchmark                                               old bytes     new bytes     delta
BenchmarkStringifyMapKeysStringsOnlyInterfaceMaps-4     1080          1008          -6.67%
BenchmarkStringifyMapKeysStringsOnlyStringMaps-4        0             0             +0.00%
BenchmarkStringifyMapKeysIntegers-4                     1080          1008          -6.67%
```
This commit is contained in:
Bjørn Erik Pedersen 2018-02-12 17:39:11 +01:00
parent d4beef0d2b
commit 10a917dfdc
No known key found for this signature in database
GPG key ID: 330E6E2BD4859D8F
2 changed files with 50 additions and 16 deletions
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27
parser/frontmatter_test.go
View file

@ -323,37 +323,56 @@ func TestRemoveTOMLIdentifier(t *testing.T) {
func TestStringifyYAMLMapKeys(t *testing.T) {
cases := []struct {
input interface{}
want map[string]interface{}
input interface{}
want interface{}
replaced bool
}{
{
map[interface{}]interface{}{"a": 1, "b": 2},
map[string]interface{}{"a": 1, "b": 2},
true,
},
{
map[interface{}]interface{}{"a": []interface{}{1, map[interface{}]interface{}{"b": 2}}},
map[string]interface{}{"a": []interface{}{1, map[string]interface{}{"b": 2}}},
true,
},
{
map[interface{}]interface{}{true: 1, "b": false},
map[string]interface{}{"true": 1, "b": false},
true,
},
{
map[interface{}]interface{}{1: "a", 2: "b"},
map[string]interface{}{"1": "a", "2": "b"},
true,
},
{
map[interface{}]interface{}{"a": map[interface{}]interface{}{"b": 1}},
map[string]interface{}{"a": map[string]interface{}{"b": 1}},
true,
},
{
map[string]interface{}{"a": map[string]interface{}{"b": 1}},
map[string]interface{}{"a": map[string]interface{}{"b": 1}},
false,
},
{
[]interface{}{map[interface{}]interface{}{1: "a", 2: "b"}},
[]interface{}{map[string]interface{}{"1": "a", "2": "b"}},
false,
},
}
for i, c := range cases {
res := stringifyMapKeys(c.input)
res, replaced := stringifyMapKeys(c.input)
if c.replaced != replaced {
t.Fatalf("[%d] Replaced mismatch: %t", i, replaced)
}
if !c.replaced {
res = c.input
}
if !reflect.DeepEqual(res, c.want) {
t.Errorf("[%d] given %q\nwant: %q\n got: %q", i, c.input, c.want, res)
}
@ -407,7 +426,7 @@ func BenchmarkStringifyMapKeysStringsOnlyStringMaps(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
stringifyYAMLMapKeys(m)
stringifyMapKeys(m)
}
}