/
imports.go
69 lines (55 loc) · 1.06 KB
/
imports.go
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package pkg
import (
"bytes"
"go/ast"
"strings"
"text/template"
)
var importTpl = `import (
{{ range .Imports }}
{{ range $doc := .Doc}}{{$doc}}
{{end}}{{.Name}} "{{.Path}}"{{end}}
)
`
type Import struct {
Name string
Path string
Doc []string
}
type Imports []Import
func (is Imports) Len() int {
return len(is)
}
func (is Imports) String() string {
if is.Len() == 0 {
return ""
}
tmpl, err := template.New("import_template").Parse(importTpl)
if err != nil {
panic(err.Error())
}
var buf bytes.Buffer
err = tmpl.Execute(&buf, struct{ Imports }{is})
if err != nil {
panic(err.Error())
}
return buf.String()
}
func (is *Imports) ParseFromAst(genDecl *ast.GenDecl) {
for _, specs := range genDecl.Specs {
spec, ok := specs.(*ast.ImportSpec)
if ok {
imp := Import{}
if spec.Name.String() != "<nil>" {
imp.Name = spec.Name.String()
}
if spec.Doc != nil {
for _, test := range spec.Doc.List {
imp.Doc = append(imp.Doc, test.Text)
}
}
imp.Path = strings.Trim(spec.Path.Value, "\"")
*is = append(*is, imp)
}
}
}