// cmdFieldType computes the Go type name used to store command flags of the given design type.
func cmdFieldType(t design.DataType, point bool) string {
var pointer, suffix string
if point && !t.IsArray() {
pointer = "*"
}
suffix = codegen.GoNativeType(t)
return pointer + suffix
}
func isArrayOfType(array design.DataType, kinds ...design.Kind) bool {
if !array.IsArray() {
return false
}
kind := array.ToArray().ElemType.Type.Kind()
for _, t := range kinds {
if t == kind {
return true
}
}
return false
}
// cmdFieldTypeString computes the Go type name used to store command flags of the given design type. Complex types are String
func cmdFieldTypeString(t design.DataType, point bool) string {
var pointer, suffix string
if point && !t.IsArray() {
pointer = "*"
}
if t.Kind() == design.UUIDKind || t.Kind() == design.DateTimeKind || t.Kind() == design.AnyKind || t.Kind() == design.NumberKind || t.Kind() == design.BooleanKind {
suffix = "string"
} else if isArrayOfType(t, design.UUIDKind, design.DateTimeKind, design.AnyKind, design.NumberKind, design.BooleanKind) {
suffix = "[]string"
} else {
suffix = codegen.GoNativeType(t)
}
return pointer + suffix
}
// printVal prints the given value corresponding to the given data type.
// The value is already checked for the compatibility with the data type.
func printVal(t design.DataType, val interface{}) string {
switch {
case t.IsPrimitive():
// For primitive types, simply print the value
s := fmt.Sprintf("%#v", val)
if t == design.DateTime {
s = fmt.Sprintf("time.Parse(time.RFC3339, %s)", s)
}
return s
case t.IsHash():
// The input is a hash
h := t.ToHash()
hval := val.(map[interface{}]interface{})
if len(hval) == 0 {
return fmt.Sprintf("%s{}", GoTypeName(t, nil, 0, false))
}
var buffer bytes.Buffer
buffer.WriteString(fmt.Sprintf("%s{", GoTypeName(t, nil, 0, false)))
for k, v := range hval {
buffer.WriteString(fmt.Sprintf("%s: %s, ", printVal(h.KeyType.Type, k), printVal(h.ElemType.Type, v)))
}
buffer.Truncate(buffer.Len() - 2) // remove ", "
buffer.WriteString("}")
return buffer.String()
case t.IsArray():
// Input is an array
a := t.ToArray()
aval := val.([]interface{})
if len(aval) == 0 {
return fmt.Sprintf("%s{}", GoTypeName(t, nil, 0, false))
}
var buffer bytes.Buffer
buffer.WriteString(fmt.Sprintf("%s{", GoTypeName(t, nil, 0, false)))
for _, e := range aval {
buffer.WriteString(fmt.Sprintf("%s, ", printVal(a.ElemType.Type, e)))
}
buffer.Truncate(buffer.Len() - 2) // remove ", "
buffer.WriteString("}")
return buffer.String()
default:
// shouldn't happen as the value's compatibility is already checked.
panic("unknown type")
}
}
