tsserver - examples_test.go

  package tsserver_test
  
  import (
  	"fmt"
  	"io"
  	"io/fs"
  	"os"
  	"strings"
  	"time"
  
  	"vimagination.zapto.org/tsserver"
  )
  
  type memFS map[string]string
  
  func (m memFS) Open(path string) (fs.File, error) {
  	if str, ok := m[path]; ok {
  		return &memFile{
  			name:   path,
  			Reader: strings.NewReader(str),
  			size:   len(str),
  		}, nil
  	}
  
  	return nil, fs.ErrNotExist
  }
  
  type memFile struct {
  	name string
  	*strings.Reader
  	size int
  }
  
  func (m *memFile) Stat() (fs.FileInfo, error) { return m, nil }
  func (m *memFile) Close() error               { return nil }
  func (m *memFile) Name() string               { return m.name }
  func (m *memFile) Size() int64                { return int64(m.size) }
  func (m *memFile) Mode() fs.FileMode          { return fs.ModePerm }
  func (m *memFile) ModTime() time.Time         { return time.Now() }
  func (m *memFile) IsDir() bool                { return false }
  func (m *memFile) Sys() any                   { return m }
  
  func Example() {
  	files := tsserver.WrapFS(memFS{
  		"main.ts": "function hello(name: string) {console.log('Hello ' + name);}\n\nhello('Bob');",
  	})
  
  	file, err := files.Open("main.js")
  	if err != nil {
  		fmt.Println(err)
  
  		return
  	}
  	defer file.Close()
  
  	io.Copy(os.Stdout, file)
  
  	// Output:
  	// function hello(name) {
  	//	console.log('Hello ' + name);
  	// }
  	//
  	// hello('Bob');
  }