Exemple #1
0
// qualifiedTypeName returns the qualified type name for the given data type.
// This is useful in reporting types in error messages.
// (e.g) array<string>, hash<string, string>, hash<string, array<int>>
func qualifiedTypeName(t design.DataType) string {
	switch t.Kind() {
	case design.DateTimeKind:
		return "datetime"
	case design.ArrayKind:
		return fmt.Sprintf("%s<%s>", t.Name(), qualifiedTypeName(t.ToArray().ElemType.Type))
	case design.HashKind:
		h := t.ToHash()
		return fmt.Sprintf("%s<%s, %s>",
			t.Name(),
			qualifiedTypeName(h.KeyType.Type),
			qualifiedTypeName(h.ElemType.Type),
		)
	}
	return t.Name()
}
Exemple #2
0
// 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")
	}
}