/
jsx.go
78 lines (67 loc) · 1.58 KB
/
jsx.go
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package react
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
)
type JSX struct {
pool *Pool
opt *Option
}
func NewJSX() (*JSX, error) {
return NewJSXWithOption(DefaultJSXOption())
}
func NewJSXWithOption(opt *Option) (*JSX, error) {
if opt == nil {
return nil, errors.New("react: nil opt *Option")
}
err := opt.Validate()
if err != nil {
return nil, err
}
pool, err := NewPool(opt)
if err != nil {
return nil, err
}
return &JSX{pool: pool, opt: opt}, nil
}
func DefaultJSXOption() *Option {
src, err := Asset("assets/JSXTransformer.js")
if err != nil {
panic(err)
}
return &Option{
Source: src,
PoolSize: 10,
GlobalObjectName: "self",
}
}
func (jx *JSX) Transform(source []byte, opt map[string]interface{}) ([]byte, error) {
optJSON, err := json.Marshal(opt)
if err != nil {
return nil, err
}
vm := jx.pool.Get()
defer jx.pool.Put(vm)
vm.PevalString(fmt.Sprintf(`(function(){return %v.JSXTransformer.transform(%#v, %v)['code'];})();`, jx.opt.GlobalObjectName, source, string(optJSON)))
v := vm.SafeToString(-1)
vm.Pop()
return []byte(v), nil
}
func (jx *JSX) TransformFile(path string, opt map[string]interface{}) ([]byte, error) {
src, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
optJSON, err := json.Marshal(opt)
if err != nil {
return nil, err
}
vm := jx.pool.Get()
defer jx.pool.Put(vm)
vm.PevalString(fmt.Sprintf(`(function(){return %v.JSXTransformer.transform(%#v, %v)['code'];})();`, jx.opt.GlobalObjectName, string(src), string(optJSON)))
v := vm.SafeToString(-1)
vm.Pop()
return []byte(v), nil
}