1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
package stalecucumber
import "errors"
// A type to convert to a GLOBAL opcode to something meaningful in golang
type PythonResolver interface {
Resolve(module string, name string, args []interface{}) (interface{}, error)
}
var ErrUnresolvablePythonGlobal = errors.New("Unresolvable Python global value")
type PythonResolverChain []PythonResolver
func MakePythonResolverChain(args... PythonResolver) PythonResolverChain{
if len(args) == 0 {
panic("Cannot make chain of length zero")
}
return PythonResolverChain(args)
}
func (this PythonResolverChain) Resolve(module string, name string, args []interface{})(interface{}, error){
var err error
for _, resolver := range this {
var result interface{}
result, err = resolver.Resolve(module, name, args)
if err == nil {
return result, nil
}
if err != ErrUnresolvablePythonGlobal {
return nil, err
}
}
return nil, err
}
|
