/
rule_registry.go
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/
rule_registry.go
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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package lint
import (
"errors"
"fmt"
)
// RuleRegistry is a registry for registering and looking up rules.
type RuleRegistry map[RuleName]ProtoRule
var (
errInvalidRuleName = errors.New("not a valid rule name")
errInvalidRuleGroup = errors.New("invalid rule group")
errDuplicatedRuleName = errors.New("duplicate rule name")
)
// Register registers the list of rules of the same AIP.
// Return an error if any of the rules is found duplicate in the registry.
func (r RuleRegistry) Register(aip int, rules ...ProtoRule) error {
rulePrefix := getRuleGroup(aip, aipGroups) + nameSeparator + fmt.Sprintf("%04d", aip)
for _, rl := range rules {
if !rl.GetName().IsValid() {
return errInvalidRuleName
}
if !rl.GetName().HasPrefix(rulePrefix) {
return errInvalidRuleGroup
}
if _, found := r[rl.GetName()]; found {
return errDuplicatedRuleName
}
r[rl.GetName()] = rl
}
return nil
}
// NewRuleRegistry creates a new rule registry.
func NewRuleRegistry() RuleRegistry {
return make(RuleRegistry)
}