tidb analyzer 源码
tidb analyzer 代码
文件路径：/build/linter/gofmt/analyzer.go
// Copyright 2022 PingCAP, Inc.
//
// 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 gofmt
import (
"fmt"
"strings"
"github.com/golangci/gofmt/gofmt"
"golang.org/x/tools/go/analysis"
)
// Analyzer is the analyzer struct of gofmt.
var Analyzer = &analysis.Analyzer{
Name: "gofmt",
Doc: "gofmt checks whether code was gofmt-ed" +
"this tool runs with -s option to check for code simplification",
Run: run,
}
var needSimplify bool
func init() {
Analyzer.Flags.BoolVar(&needSimplify, "need-simplify", true, "run gofmt with -s for code simplification")
}
func run(pass *analysis.Pass) (any, error) {
fileNames := make([]string, 0, 10)
for _, f := range pass.Files {
pos := pass.Fset.PositionFor(f.Pos(), false)
if pos.Filename != "" && !strings.HasSuffix(pos.Filename, "failpoint_binding__.go") {
fileNames = append(fileNames, pos.Filename)
}
}
for _, f := range fileNames {
diff, err := gofmt.Run(f, needSimplify)
if err != nil {
return nil, fmt.Errorf("could not run gofmt: %w (%s)", err, f)
}
if diff == nil {
continue
}
pass.Report(analysis.Diagnostic{
Pos: 1,
Message: fmt.Sprintf("\n%s", diff),
})
}
return nil, nil
}
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