56 lines
905 B
Go
56 lines
905 B
Go
package javascript
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import (
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"github.com/evcc-io/evcc/util"
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"github.com/robertkrimen/otto"
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)
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// Configure initializes JS VMs
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func Configure(other map[string]interface{}) error {
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cc := []struct {
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VM string
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Script string
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}{}
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if err := util.DecodeOther(other, &cc); err != nil {
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return err
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}
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// init all VMs that require it
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for _, conf := range cc {
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if conf.Script == "" {
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continue
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}
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if _, ok := registry[conf.VM]; !ok {
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vm := otto.New()
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_, err := vm.Run(conf.Script)
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if err != nil {
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return err
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}
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registry[conf.VM] = vm
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}
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}
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return nil
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}
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var registry = make(map[string]*otto.Otto)
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// RegisteredVM returns a JS VM. If name is not empty, it will return a shared instance.
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func RegisteredVM(name string) *otto.Otto {
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vm, ok := registry[name]
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// create new VM
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if !ok {
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vm = otto.New()
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if name != "" {
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registry[name] = vm
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}
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}
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return vm
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}
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