103 lines
2.7 KiB
Go
103 lines
2.7 KiB
Go
package namer
|
|
|
|
import (
|
|
"sort"
|
|
|
|
"go-common/app/tool/gengo/types"
|
|
)
|
|
|
|
// DefaultImportTracker is
|
|
// ImportTracker may be passed to a namer.RawNamer, to track the imports needed
|
|
// for the types it names.
|
|
//
|
|
// TODO: pay attention to the package name (instead of renaming every package).
|
|
type DefaultImportTracker struct {
|
|
pathToName map[string]string
|
|
// forbidden names are in here. (e.g. "go" is a directory in which
|
|
// there is code, but "go" is not a legal name for a package, so we put
|
|
// it here to prevent us from naming any package "go")
|
|
nameToPath map[string]string
|
|
local types.Name
|
|
|
|
// Returns true if a given types is an invalid type and should be ignored.
|
|
IsInvalidType func(*types.Type) bool
|
|
// Returns the final local name for the given name
|
|
LocalName func(types.Name) string
|
|
// Returns the "import" line for a given (path, name).
|
|
PrintImport func(string, string) string
|
|
}
|
|
|
|
// NewDefaultImportTracker is
|
|
func NewDefaultImportTracker(local types.Name) DefaultImportTracker {
|
|
return DefaultImportTracker{
|
|
pathToName: map[string]string{},
|
|
nameToPath: map[string]string{},
|
|
local: local,
|
|
}
|
|
}
|
|
|
|
// AddTypes is
|
|
func (tracker *DefaultImportTracker) AddTypes(types ...*types.Type) {
|
|
for _, t := range types {
|
|
tracker.AddType(t)
|
|
}
|
|
}
|
|
|
|
// AddType is
|
|
func (tracker *DefaultImportTracker) AddType(t *types.Type) {
|
|
if tracker.local.Package == t.Name.Package {
|
|
return
|
|
}
|
|
|
|
if tracker.IsInvalidType(t) {
|
|
if t.Kind == types.Builtin {
|
|
return
|
|
}
|
|
if _, ok := tracker.nameToPath[t.Name.Package]; !ok {
|
|
tracker.nameToPath[t.Name.Package] = ""
|
|
}
|
|
return
|
|
}
|
|
|
|
if len(t.Name.Package) == 0 {
|
|
return
|
|
}
|
|
path := t.Name.Path
|
|
if len(path) == 0 {
|
|
path = t.Name.Package
|
|
}
|
|
if _, ok := tracker.pathToName[path]; ok {
|
|
return
|
|
}
|
|
name := tracker.LocalName(t.Name)
|
|
tracker.nameToPath[name] = path
|
|
tracker.pathToName[path] = name
|
|
}
|
|
|
|
// ImportLines is
|
|
func (tracker *DefaultImportTracker) ImportLines() []string {
|
|
importPaths := []string{}
|
|
for path := range tracker.pathToName {
|
|
importPaths = append(importPaths, path)
|
|
}
|
|
sort.Sort(sort.StringSlice(importPaths))
|
|
out := []string{}
|
|
for _, path := range importPaths {
|
|
out = append(out, tracker.PrintImport(path, tracker.pathToName[path]))
|
|
}
|
|
return out
|
|
}
|
|
|
|
// LocalNameOf returns the name you would use to refer to the package at the
|
|
// specified path within the body of a file.
|
|
func (tracker *DefaultImportTracker) LocalNameOf(path string) string {
|
|
return tracker.pathToName[path]
|
|
}
|
|
|
|
// PathOf returns the path that a given localName is referring to within the
|
|
// body of a file.
|
|
func (tracker *DefaultImportTracker) PathOf(localName string) (string, bool) {
|
|
name, ok := tracker.nameToPath[localName]
|
|
return name, ok
|
|
}
|