github.com/kovansky/hugo@v0.92.3-0.20220224232819-63076e4ff19f/tpl/reflect/init.go (about)

     1  // Copyright 2018 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 reflect provides template functions for run-time object reflection.
    15  package reflect
    16  
    17  import (
    18  	"github.com/gohugoio/hugo/deps"
    19  	"github.com/gohugoio/hugo/tpl/internal"
    20  )
    21  
    22  const name = "reflect"
    23  
    24  func init() {
    25  	f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
    26  		ctx := New()
    27  
    28  		ns := &internal.TemplateFuncsNamespace{
    29  			Name:    name,
    30  			Context: func(args ...interface{}) (interface{}, error) { return ctx, nil },
    31  		}
    32  
    33  		ns.AddMethodMapping(ctx.IsMap,
    34  			nil,
    35  			[][2]string{
    36  				{`{{ if reflect.IsMap (dict "a" 1) }}Map{{ end }}`, `Map`},
    37  			},
    38  		)
    39  
    40  		ns.AddMethodMapping(ctx.IsSlice,
    41  			nil,
    42  			[][2]string{
    43  				{`{{ if reflect.IsSlice (slice 1 2 3) }}Slice{{ end }}`, `Slice`},
    44  			},
    45  		)
    46  
    47  		return ns
    48  	}
    49  
    50  	internal.AddTemplateFuncsNamespace(f)
    51  }