Update documentation for compiled scripts
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1 changed files with 12 additions and 1 deletions
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@ -70,12 +70,23 @@ func main() {
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// retrieve value of 'a'
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a := c.Get("a")
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fmt.Println(a.Int())
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fmt.Println(a.Int()) // prints "30"
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// re-run after replacing value of 'b'
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if err := c.Set("b", 20); err != nil {
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panic(err)
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}
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if err := c.Run(); err != nil {
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panic(err)
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}
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fmt.Println(c.Get("a").Int()) // prints "40"
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}
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```
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A variable `b` is defined by the user before compilation using [Script.Add](https://godoc.org/github.com/d5/tengo/script#Script.Add) function. Then a compiled bytecode `c` is used to execute the bytecode and get the value of global variables. In this example, the value of global variable `a` is read using [Compiled.Get](https://godoc.org/github.com/d5/tengo/script#Compiled.Get) function. See [documentation](https://godoc.org/github.com/d5/tengo/script#Variable) for the full list of variable value functions.
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Value of the global variables can be replaced using [Compiled.Set](https://godoc.org/github.com/d5/tengo/script#Compiled.Set) function. But it will return an error if you try to set the value of un-defined global variables _(e.g. trying to set the value of `x` in the example)_.
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### Type Conversion Table
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When adding a Variable _([Script.Add](https://godoc.org/github.com/d5/tengo/script#Script.Add))_, Script converts Go values into Tengo values based on the following conversion table.
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