/
value_call.go
79 lines (69 loc) · 1.47 KB
/
value_call.go
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package twostack
import (
"fmt"
"github.com/google/uuid"
)
func Call(name string, v string, labels ...string) *Elem {
e := NewElem(name, Call_t, v, labels...)
e.FromString = CallFromString
e.ToString = CallToString
return e
}
func MakeCall(name string, p string, labels ...string) *Elem {
val := CallFromString(p)
return Call(name, val.(string), labels...)
}
func CallFromString(d string) interface{} {
return d
}
func CallToString(e *Elem) string {
if e.Type == Call_t {
return e.V.(string)
} else {
return "UNKNOWN"
}
}
func (ts *TwoStack) SetCall(v string, labels ...string) {
var name string
if len(labels) > 0 {
name = labels[0]
} else {
name = uuid.New().String()
}
e := Call(name, v, labels...)
ts.Set(e)
}
func (ts *TwoStack) MakeCall(p string, labels ...string) {
var name string
if len(labels) > 0 {
name = labels[0]
} else {
name = uuid.New().String()
}
e := MakeCall(name, p, labels...)
ts.Set(e)
}
func (ts *TwoStack) GetCall() (string, error) {
e, err := ts.GetElem()
if err != nil {
return "", err
}
if e.Type != Call_t {
return "", fmt.Errorf("There is no call value on top of the stack: %v", e.Type)
}
return e.V.(string), nil
}
func (ts *TwoStack) TakeCall() (string, error) {
e, err := ts.TakeElem()
if err != nil {
return "", err
}
if e.Type != Call_t {
return "", fmt.Errorf("There is no call value on top of the stack: %v", e.Type)
}
e, err = ts.TakeElem()
if err != nil {
return "", err
}
return e.V.(string), nil
}