page_data.go (1215B)
1 // Copyright 2019 The Hugo Authors. All rights reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 // http://www.apache.org/licenses/LICENSE-2.0
7 //
8 // Unless required by applicable law or agreed to in writing, software
9 // distributed under the License is distributed on an "AS IS" BASIS,
10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 // See the License for the specific language governing permissions and
12 // limitations under the License.
13
14 // Package page contains the core interfaces and types for the Page resource,
15 // a core component in Hugo.
16 package page
17
18 import (
19 "fmt"
20 )
21
22 // Data represents the .Data element in a Page in Hugo. We make this
23 // a type so we can do lazy loading of .Data.Pages
24 type Data map[string]any
25
26 // Pages returns the pages stored with key "pages". If this is a func,
27 // it will be invoked.
28 func (d Data) Pages() Pages {
29 v, found := d["pages"]
30 if !found {
31 return nil
32 }
33
34 switch vv := v.(type) {
35 case Pages:
36 return vv
37 case func() Pages:
38 return vv()
39 default:
40 panic(fmt.Sprintf("%T is not Pages", v))
41 }
42 }