plugeth/ethutil/natspec/natspec.go

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package natspec
import (
"github.com/obscuren/otto"
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"io/ioutil"
)
type NatSpec struct {
jsvm *otto.Otto
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}
func NewNATSpec(transaction string) (self *NatSpec, err error) {
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self = new(NatSpec)
self.jsvm = otto.New()
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code, err := ioutil.ReadFile("natspec.js")
if err != nil {
return
}
_, err = self.jsvm.Run(string(code))
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if err != nil {
return
}
_, err = self.jsvm.Run("var natspec = require('natspec');")
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if err != nil {
return
}
self.jsvm.Run("var transaction = " + transaction + ";")
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return
}
func (self *NatSpec) SetDescription(desc string) (err error) {
_, err = self.jsvm.Run("var expression = \"" + desc + "\";")
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return
}
func (self *NatSpec) SetABI(abi string) (err error) {
_, err = self.jsvm.Run("var abi = " + abi + ";")
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return
}
func (self *NatSpec) SetMethod(method string) (err error) {
_, err = self.jsvm.Run("var method = '" + method + "';")
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return
}
func (self *NatSpec) Parse() string {
self.jsvm.Run("var call = {method: method,abi: abi,transaction: transaction};")
value, err := self.jsvm.Run("natspec.evaluateExpression(expression, call);")
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if err != nil {
return err.Error()
}
return value.String()
}