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// Copyright 2019 The gVisor Authors.
//
// 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
//
// http://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 nogo
import (
"encoding/gob"
"log"
"golang.org/x/tools/go/analysis"
)
// analyzers returns all configured analyzers.
func analyzers() (all []*analysis.Analyzer) {
for a, _ := range analyzerConfig {
all = append(all, a)
}
return all
}
func init() {
// Validate basic configuration.
if err := analysis.Validate(analyzers()); err != nil {
log.Fatalf("unable to validate analyzer: %v", err)
}
// Register all fact types.
//
// N.B. This needs to be done recursively, because there may be
// analyzers in the Requires list that do not appear explicitly above.
registered := make(map[*analysis.Analyzer]struct{})
var register func(*analysis.Analyzer)
register = func(a *analysis.Analyzer) {
if _, ok := registered[a]; ok {
return
}
// Regsiter dependencies.
for _, da := range a.Requires {
register(da)
}
// Register local facts.
for _, f := range a.FactTypes {
gob.Register(f)
}
registered[a] = struct{}{} // Done.
}
for _, a := range analyzers() {
register(a)
}
}
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