eskip: use Predicate instead of matcher #2871
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They are equivalent and using predicate reduces unnecessary copying.
This is also consistent with parsing filters straight into `[]*Filter`.
```
goos: linux
goarch: amd64
pkg: github.com/zalando/skipper/eskip
│ HEAD~1 │ HEAD │
│ sec/op │ sec/op vs base │
ParsePredicates-8 9.192µ ± 2% 8.788µ ± 3% -4.40% (p=0.007 n=10)
Parse-8 273.1m ± 2% 260.6m ± 2% -4.58% (p=0.000 n=10)
geomean 1.585m 1.513m -4.49%
│ HEAD~1 │ HEAD │
│ B/op │ B/op vs base │
ParsePredicates-8 2.008Ki ± 0% 1.961Ki ± 0% -2.33% (p=0.000 n=10)
Parse-8 49.94Mi ± 0% 49.02Mi ± 0% -1.83% (p=0.000 n=10)
geomean 320.4Ki 313.7Ki -2.08%
│ HEAD~1 │ HEAD │
│ allocs/op │ allocs/op vs base │
ParsePredicates-8 33.00 ± 0% 32.00 ± 0% -3.03% (p=0.000 n=10)
Parse-8 1.100M ± 0% 1.080M ± 0% -1.82% (p=0.000 n=10)
geomean 6.025k 5.879k -2.43%
```
Signed-off-by: Alexander Yastrebov <[email protected]>
| frontend: | ||
| matcher { | ||
| $$.matchers = []*matcher{$1.matcher} | ||
| predicates: |
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This renames rules consistently and opens a way to parse predicates and filters separately, see draft branch https://github.com/zalando/skipper/tree/eskip/separate-parse-predicates-filters based on this
|
👍 |
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They are equivalent and using predicate reduces unnecessary copying. This is also consistent with parsing filters straight into
[]*Filter.