xgoprev/paths/main.go

47 lines
896 B
Go

package paths
import (
"github.com/d5/tengo/v2"
"path"
)
var Module = map[string] tengo.Object {
"base" : &tengo.UserFunction{
Name: "base",
Value: wrapOneArg(path.Base),
},
"ext" : &tengo.UserFunction{
Name: "ext",
Value: wrapOneArg(path.Ext),
},
"dir" : &tengo.UserFunction{
Name: "dir",
Value: wrapOneArg(path.Dir),
},
"clean" : &tengo.UserFunction{
Name: "clean",
Value: wrapOneArg(path.Clean),
},
}
func wrapOneArg(
fn func(string) string,
) func(...tengo.Object) (tengo.Object, error) {
return func(args ...tengo.Object) (tengo.Object, error) {
if len(args) != 1 {
return nil, tengo.ErrWrongNumArguments
}
str, ok := tengo.ToString(args[0])
if !ok {
return nil, tengo.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
return &tengo.String{
Value: fn(str),
}, nil
}
}