github.com/neohugo/neohugo@v0.123.8/resources/postpub/fields.go (about)

     1  // Copyright 2020 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 postpub
    15  
    16  import (
    17  	"reflect"
    18  )
    19  
    20  const (
    21  	FieldNotSupported = "__field_not_supported"
    22  )
    23  
    24  func structToMapWithPlaceholders(root string, in any, createPlaceholder func(s string) string) map[string]any {
    25  	m := structToMap(in)
    26  	insertFieldPlaceholders(root, m, createPlaceholder)
    27  	return m
    28  }
    29  
    30  func structToMap(s any) map[string]any {
    31  	m := make(map[string]any)
    32  	t := reflect.TypeOf(s)
    33  
    34  	for i := 0; i < t.NumMethod(); i++ {
    35  		method := t.Method(i)
    36  		if method.PkgPath != "" {
    37  			continue
    38  		}
    39  		if method.Type.NumIn() == 1 {
    40  			m[method.Name] = ""
    41  		}
    42  	}
    43  
    44  	for i := 0; i < t.NumField(); i++ {
    45  		field := t.Field(i)
    46  		if field.PkgPath != "" {
    47  			continue
    48  		}
    49  		m[field.Name] = ""
    50  	}
    51  	return m
    52  }
    53  
    54  // insert placeholder for the templates. Do it very shallow for now.
    55  func insertFieldPlaceholders(root string, m map[string]any, createPlaceholder func(s string) string) {
    56  	for k := range m {
    57  		m[k] = createPlaceholder(root + "." + k)
    58  	}
    59  }