mirror of
https://github.com/gohugoio/hugo.git
synced 2024-07-07 09:36:03 +00:00
a03c631c42
This is a big commit, but it deletes lots of code and simplifies a lot. * Resolving the template funcs at execution time means we don't have to create template clones per site * Having a custom map resolver means that we can remove the AST lower case transformation for the special lower case Params map Not only is the above easier to reason about, it's also faster, especially if you have more than one language, as in the benchmark below: ``` name old time/op new time/op delta SiteNew/Deep_content_tree-16 53.7ms ± 0% 48.1ms ± 2% -10.38% (p=0.029 n=4+4) name old alloc/op new alloc/op delta SiteNew/Deep_content_tree-16 41.0MB ± 0% 36.8MB ± 0% -10.26% (p=0.029 n=4+4) name old allocs/op new allocs/op delta SiteNew/Deep_content_tree-16 481k ± 0% 410k ± 0% -14.66% (p=0.029 n=4+4) ``` This should be even better if you also have lots of templates. Closes #6594
137 lines
3.6 KiB
Go
137 lines
3.6 KiB
Go
// Copyright 2017-present The Hugo Authors. All rights reserved.
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//
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// Portions Copyright The Go Authors.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tplimpl
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import (
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"reflect"
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"strings"
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"github.com/gohugoio/hugo/common/maps"
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template "github.com/gohugoio/hugo/tpl/internal/go_templates/htmltemplate"
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texttemplate "github.com/gohugoio/hugo/tpl/internal/go_templates/texttemplate"
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"github.com/gohugoio/hugo/deps"
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"github.com/gohugoio/hugo/tpl/internal"
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// Init the namespaces
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_ "github.com/gohugoio/hugo/tpl/cast"
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_ "github.com/gohugoio/hugo/tpl/collections"
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_ "github.com/gohugoio/hugo/tpl/compare"
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_ "github.com/gohugoio/hugo/tpl/crypto"
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_ "github.com/gohugoio/hugo/tpl/data"
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_ "github.com/gohugoio/hugo/tpl/encoding"
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_ "github.com/gohugoio/hugo/tpl/fmt"
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_ "github.com/gohugoio/hugo/tpl/hugo"
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_ "github.com/gohugoio/hugo/tpl/images"
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_ "github.com/gohugoio/hugo/tpl/inflect"
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_ "github.com/gohugoio/hugo/tpl/lang"
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_ "github.com/gohugoio/hugo/tpl/math"
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_ "github.com/gohugoio/hugo/tpl/os"
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_ "github.com/gohugoio/hugo/tpl/partials"
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_ "github.com/gohugoio/hugo/tpl/path"
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_ "github.com/gohugoio/hugo/tpl/reflect"
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_ "github.com/gohugoio/hugo/tpl/resources"
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_ "github.com/gohugoio/hugo/tpl/safe"
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_ "github.com/gohugoio/hugo/tpl/site"
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_ "github.com/gohugoio/hugo/tpl/strings"
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_ "github.com/gohugoio/hugo/tpl/templates"
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_ "github.com/gohugoio/hugo/tpl/time"
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_ "github.com/gohugoio/hugo/tpl/transform"
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_ "github.com/gohugoio/hugo/tpl/urls"
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)
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var _ texttemplate.ExecHelper = (*templateExecHelper)(nil)
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var zero reflect.Value
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type templateExecHelper struct {
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funcs map[string]reflect.Value
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}
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func (t *templateExecHelper) GetFunc(name string) (reflect.Value, bool) {
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if fn, found := t.funcs[name]; found {
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return fn, true
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}
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return zero, false
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}
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func (t *templateExecHelper) GetMapValue(receiver, key reflect.Value) (reflect.Value, bool) {
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if params, ok := receiver.Interface().(maps.Params); ok {
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// Case insensitive.
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keystr := strings.ToLower(key.String())
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v, found := params[keystr]
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if !found {
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return zero, false
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}
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return reflect.ValueOf(v), true
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}
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v := receiver.MapIndex(key)
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return v, v.IsValid()
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}
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func newTemplateExecuter(d *deps.Deps) (texttemplate.Executer, map[string]reflect.Value) {
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funcs := createFuncMap(d)
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funcsv := make(map[string]reflect.Value)
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for k, v := range funcs {
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funcsv[k] = reflect.ValueOf(v)
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}
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exeHelper := &templateExecHelper{
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funcs: funcsv,
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}
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return texttemplate.NewExecuter(
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exeHelper,
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), funcsv
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}
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func createFuncMap(d *deps.Deps) map[string]interface{} {
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funcMap := template.FuncMap{}
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// Merge the namespace funcs
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for _, nsf := range internal.TemplateFuncsNamespaceRegistry {
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ns := nsf(d)
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if _, exists := funcMap[ns.Name]; exists {
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panic(ns.Name + " is a duplicate template func")
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}
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funcMap[ns.Name] = ns.Context
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for _, mm := range ns.MethodMappings {
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for _, alias := range mm.Aliases {
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if _, exists := funcMap[alias]; exists {
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panic(alias + " is a duplicate template func")
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}
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funcMap[alias] = mm.Method
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}
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}
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}
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if d.OverloadedTemplateFuncs != nil {
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for k, v := range d.OverloadedTemplateFuncs {
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funcMap[k] = v
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}
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}
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return funcMap
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}
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