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68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
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package rule
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import (
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"go/ast"
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"strings"
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"github.com/mgechev/revive/lint"
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)
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// MaxPublicStructsRule lints given else constructs.
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type MaxPublicStructsRule struct{}
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// Apply applies the rule to given file.
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func (r *MaxPublicStructsRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure {
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var failures []lint.Failure
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fileAst := file.AST
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walker := &lintMaxPublicStructs{
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fileAst: fileAst,
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onFailure: func(failure lint.Failure) {
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failures = append(failures, failure)
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},
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}
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ast.Walk(walker, fileAst)
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max, ok := arguments[0].(int64) // Alt. non panicking version
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if !ok {
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panic(`invalid value passed as argument number to the "max-public-structs" rule`)
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}
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if walker.current > max {
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walker.onFailure(lint.Failure{
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Failure: "you have exceeded the maximum number of public struct declarations",
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Confidence: 1,
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Node: fileAst,
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Category: "style",
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})
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}
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return failures
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}
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// Name returns the rule name.
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func (r *MaxPublicStructsRule) Name() string {
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return "max-public-structs"
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}
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type lintMaxPublicStructs struct {
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current int64
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fileAst *ast.File
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onFailure func(lint.Failure)
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}
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func (w *lintMaxPublicStructs) Visit(n ast.Node) ast.Visitor {
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switch v := n.(type) {
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case *ast.TypeSpec:
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name := v.Name.Name
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first := string(name[0])
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if strings.ToUpper(first) == first {
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w.current++
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}
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break
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}
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return w
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}
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