1911 lines
54 KiB
Go
1911 lines
54 KiB
Go
package tmpl
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"reflect"
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"runtime/debug"
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"strconv"
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"strings"
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"text/template/parse"
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"time"
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"unicode"
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)
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// TODO: Turn this file into a library
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var textOverlapList = make(map[string]int)
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// TODO: Stop hard-coding this here
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var langPkg = "github.com/Azareal/Gosora/common/phrases"
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type VarItem struct {
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Name string
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Destination string
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Type string
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}
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type VarItemReflect struct {
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Name string
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Destination string
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Value reflect.Value
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}
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type CTemplateConfig struct {
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Minify bool
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Debug bool
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SuperDebug bool
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SkipHandles bool
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SkipTmplPtrMap bool
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SkipInitBlock bool
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PackageName string
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}
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// nolint
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type CTemplateSet struct {
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templateList map[string]*parse.Tree
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fileDir string
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funcMap map[string]interface{}
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importMap map[string]string
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//templateFragmentCount map[string]int
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fragOnce map[string]bool
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fragmentCursor map[string]int
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FragOut []OutFrag
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fragBuf []Fragment
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varList map[string]VarItem
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localVars map[string]map[string]VarItemReflect
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hasDispInt bool
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localDispStructIndex int
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langIndexToName []string
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guestOnly bool
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memberOnly bool
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stats map[string]int
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//tempVars map[string]string
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config CTemplateConfig
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baseImportMap map[string]string
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buildTags string
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overridenTrack map[string]map[string]bool
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overridenRoots map[string]map[string]bool
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themeName string
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perThemeTmpls map[string]bool
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logger *log.Logger
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loggerf *os.File
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lang string
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}
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func NewCTemplateSet(in string) *CTemplateSet {
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f, err := os.OpenFile("./logs/tmpls-"+in+"-"+strconv.FormatInt(time.Now().Unix(), 10)+".log", os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0755)
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if err != nil {
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panic(err)
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}
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return &CTemplateSet{
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config: CTemplateConfig{
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PackageName: "main",
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},
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baseImportMap: map[string]string{},
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overridenRoots: map[string]map[string]bool{},
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funcMap: map[string]interface{}{
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"and": "&&",
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"not": "!",
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"or": "||",
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"eq": "==",
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"ge": ">=",
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"gt": ">",
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"le": "<=",
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"lt": "<",
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"ne": "!=",
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"add": "+",
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"subtract": "-",
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"multiply": "*",
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"divide": "/",
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"dock": true,
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"hasWidgets": true,
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"elapsed": true,
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"lang": true,
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"langf": true,
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"level": true,
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"bunit": true,
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"abstime": true,
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"reltime": true,
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"scope": true,
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"dyntmpl": true,
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"index": true,
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"flush": true,
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},
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logger: log.New(f, "", log.LstdFlags),
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loggerf: f,
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lang: in,
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}
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}
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func (c *CTemplateSet) SetConfig(config CTemplateConfig) {
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if config.PackageName == "" {
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config.PackageName = "main"
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}
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c.config = config
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}
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func (c *CTemplateSet) GetConfig() CTemplateConfig {
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return c.config
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}
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func (c *CTemplateSet) SetBaseImportMap(importMap map[string]string) {
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c.baseImportMap = importMap
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}
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func (c *CTemplateSet) SetBuildTags(tags string) {
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c.buildTags = tags
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}
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func (c *CTemplateSet) SetOverrideTrack(overriden map[string]map[string]bool) {
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c.overridenTrack = overriden
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}
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func (c *CTemplateSet) GetOverridenRoots() map[string]map[string]bool {
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return c.overridenRoots
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}
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func (c *CTemplateSet) SetThemeName(name string) {
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c.themeName = name
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}
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func (c *CTemplateSet) SetPerThemeTmpls(perThemeTmpls map[string]bool) {
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c.perThemeTmpls = perThemeTmpls
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}
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func (c *CTemplateSet) ResetLogs(in string) {
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f, err := os.OpenFile("./logs/tmpls-"+in+"-"+strconv.FormatInt(time.Now().Unix(), 10)+".log", os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0755)
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if err != nil {
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panic(err)
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}
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c.logger = log.New(f, "", log.LstdFlags)
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c.loggerf = f
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}
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type SkipBlock struct {
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Frags map[int]int
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LastCount int
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ClosestFragSkip int
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}
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type Skipper struct {
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Count int
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Index int
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}
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type OutFrag struct {
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TmplName string
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Index int
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Body string
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}
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func (c *CTemplateSet) CompileByLoggedin(name string, fileDir string, expects string, expectsInt interface{}, varList map[string]VarItem, imports ...string) (stub string, gout string, mout string, err error) {
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c.importMap = map[string]string{}
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for index, item := range c.baseImportMap {
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c.importMap[index] = item
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}
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for _, importItem := range imports {
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c.importMap[importItem] = importItem
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}
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var importList string
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for _, item := range c.importMap {
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ispl := strings.Split(item, " ")
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if len(ispl) > 1 {
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importList += "import " + ispl[0] + " \"" + ispl[1] + "\"\n"
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} else {
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importList += "import \"" + item + "\"\n"
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}
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}
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fname := strings.TrimSuffix(name, filepath.Ext(name))
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if c.themeName != "" {
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_, ok := c.perThemeTmpls[fname]
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if !ok {
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return "", "", "", nil
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}
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fname += "_" + c.themeName
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}
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c.importMap["github.com/Azareal/Gosora/common"] = "c github.com/Azareal/Gosora/common"
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stub = `package ` + c.config.PackageName + `
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` + importList + `
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import "errors"
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`
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if !c.config.SkipInitBlock {
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stub += "// nolint\nfunc init() {\n"
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if !c.config.SkipHandles && c.themeName == "" {
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stub += "\tc.Template_" + fname + "_handle = Template_" + fname + "\n"
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stub += "\tc.Ctemplates = append(c.Ctemplates,\"" + fname + "\")\n"
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}
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if !c.config.SkipTmplPtrMap {
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stub += "tmpl := Template_" + fname + "\n"
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stub += "\tc.TmplPtrMap[\"" + fname + "\"] = &tmpl\n"
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stub += "\tc.TmplPtrMap[\"o_" + fname + "\"] = tmpl\n"
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}
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stub += "}\n\n"
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}
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// TODO: Try to remove this redundant interface cast
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stub += `
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// nolint
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func Template_` + fname + `(tmpl_` + fname + `_i interface{}, w io.Writer) error {
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tmpl_` + fname + `_vars, ok := tmpl_` + fname + `_i.(` + expects + `)
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if !ok {
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return errors.New("invalid page struct value")
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}
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if tmpl_` + fname + `_vars.CurrentUser.Loggedin {
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return Template_` + fname + `_member(tmpl_` + fname + `_i, w)
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}
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return Template_` + fname + `_guest(tmpl_` + fname + `_i, w)
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}`
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c.fileDir = fileDir
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content, err := c.loadTemplate(c.fileDir, name)
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if err != nil {
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c.detail("bailing out: ", err)
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return "", "", "", err
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}
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c.guestOnly = true
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gout, err = c.compile(name, content, expects, expectsInt, varList, imports...)
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if err != nil {
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return "", "", "", err
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}
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c.guestOnly = false
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c.memberOnly = true
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mout, err = c.compile(name, content, expects, expectsInt, varList, imports...)
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c.memberOnly = false
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return stub, gout, mout, err
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}
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func (c *CTemplateSet) Compile(name string, fileDir string, expects string, expectsInt interface{}, varList map[string]VarItem, imports ...string) (out string, err error) {
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if c.config.Debug {
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c.logger.Println("Compiling template '" + name + "'")
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}
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c.fileDir = fileDir
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content, err := c.loadTemplate(c.fileDir, name)
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if err != nil {
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c.detail("bailing out: ", err)
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return "", err
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}
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return c.compile(name, content, expects, expectsInt, varList, imports...)
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}
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func (c *CTemplateSet) compile(name string, content string, expects string, expectsInt interface{}, varList map[string]VarItem, imports ...string) (out string, err error) {
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defer func() {
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if r := recover(); r != nil {
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fmt.Println(r)
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debug.PrintStack()
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err := c.loggerf.Sync()
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if err != nil {
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fmt.Println(err)
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}
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log.Fatal("")
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return
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}
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}()
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//c.dumpCall("compile", name, content, expects, expectsInt, varList, imports)
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//c.detailf("c: %+v\n", c)
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c.importMap = map[string]string{}
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for index, item := range c.baseImportMap {
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c.importMap[index] = item
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}
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c.importMap["errors"] = "errors"
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for _, importItem := range imports {
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c.importMap[importItem] = importItem
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}
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c.varList = varList
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c.hasDispInt = false
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c.localDispStructIndex = 0
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c.stats = make(map[string]int)
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tree := parse.New(name, c.funcMap)
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treeSet := make(map[string]*parse.Tree)
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tree, err = tree.Parse(content, "{{", "}}", treeSet, c.funcMap)
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if err != nil {
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return "", err
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}
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c.detail(name)
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fname := strings.TrimSuffix(name, filepath.Ext(name))
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if c.themeName != "" {
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_, ok := c.perThemeTmpls[fname]
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if !ok {
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c.detail("fname not in c.perThemeTmpls")
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c.detail("c.perThemeTmpls", c.perThemeTmpls)
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return "", nil
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}
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fname += "_" + c.themeName
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}
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if c.guestOnly {
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fname += "_guest"
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} else if c.memberOnly {
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fname += "_member"
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}
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c.detail("root overridenTrack loop")
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c.detail("fname:", fname)
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for themeName, track := range c.overridenTrack {
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c.detail("themeName:", themeName)
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c.detailf("track: %+v\n", track)
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croot, ok := c.overridenRoots[themeName]
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if !ok {
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croot = make(map[string]bool)
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c.overridenRoots[themeName] = croot
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}
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c.detailf("croot: %+v\n", croot)
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for tmplName, _ := range track {
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cname := tmplName
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if c.guestOnly {
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cname += "_guest"
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} else if c.memberOnly {
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cname += "_member"
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}
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c.detail("cname:", cname)
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if fname == cname {
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c.detail("match")
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croot[strings.TrimSuffix(strings.TrimSuffix(fname, "_guest"), "_member")] = true
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} else {
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c.detail("no match")
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}
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}
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}
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c.detailf("c.overridenRoots: %+v\n", c.overridenRoots)
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var outBuf []OutBufferFrame
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rootHold := "tmpl_" + fname + "_vars"
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con := CContext{
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RootHolder: rootHold,
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VarHolder: rootHold,
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HoldReflect: reflect.ValueOf(expectsInt),
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RootTemplateName: fname,
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TemplateName: fname,
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OutBuf: &outBuf,
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}
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c.templateList = map[string]*parse.Tree{fname: tree}
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c.detail(c.templateList)
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c.localVars = make(map[string]map[string]VarItemReflect)
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c.localVars[fname] = make(map[string]VarItemReflect)
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c.localVars[fname]["."] = VarItemReflect{".", con.VarHolder, con.HoldReflect}
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if c.fragOnce == nil {
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c.fragOnce = make(map[string]bool)
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}
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c.fragmentCursor = map[string]int{fname: 0}
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c.fragBuf = nil
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c.langIndexToName = nil
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// TODO: Is this the first template loaded in? We really should have some sort of constructor for CTemplateSet
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//if c.templateFragmentCount == nil {
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// c.templateFragmentCount = make(map[string]int)
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//}
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//c.detailf("c: %+v\n", c)
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startIndex := con.StartTemplate("")
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c.rootIterate(c.templateList[fname], con)
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con.EndTemplate("")
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c.afterTemplate(con, startIndex)
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//c.templateFragmentCount[fname] = c.fragmentCursor[fname] + 1
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_, ok := c.fragOnce[fname]
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if !ok {
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c.fragOnce[fname] = true
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}
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if len(c.langIndexToName) > 0 {
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c.importMap[langPkg] = langPkg
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}
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// TODO: Simplify this logic by doing some reordering?
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if c.lang == "normal" {
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c.importMap["net/http"] = "net/http"
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}
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var importList string
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for _, item := range c.importMap {
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ispl := strings.Split(item, " ")
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if len(ispl) > 1 {
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importList += "import " + ispl[0] + " \"" + ispl[1] + "\"\n"
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} else {
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importList += "import \"" + item + "\"\n"
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}
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}
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var varString string
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for _, varItem := range c.varList {
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varString += "var " + varItem.Name + " " + varItem.Type + " = " + varItem.Destination + "\n"
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}
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var fout string
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if c.buildTags != "" {
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fout += "// +build " + c.buildTags + "\n\n"
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}
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fout += "// Code generated by Gosora. More below:\n/* This file was automatically generated by the software. Please don't edit it as your changes may be overwritten at any moment. */\n"
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fout += "package " + c.config.PackageName + "\n" + importList + "\n"
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if !c.config.SkipInitBlock {
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if len(c.langIndexToName) > 0 {
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fout += "var " + fname + "_tmpl_phrase_id int\n\n"
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}
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fout += "// nolint\nfunc init() {\n"
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if !c.config.SkipHandles && c.themeName == "" {
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fout += "\tc.Template_" + fname + "_handle = Template_" + fname + "\n"
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fout += "\tc.Ctemplates = append(c.Ctemplates,\"" + fname + "\")\n"
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}
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if !c.config.SkipTmplPtrMap {
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fout += "tmpl := Template_" + fname + "\n"
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fout += "\tc.TmplPtrMap[\"" + fname + "\"] = &tmpl\n"
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fout += "\tc.TmplPtrMap[\"o_" + fname + "\"] = tmpl\n"
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}
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if len(c.langIndexToName) > 0 {
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fout += "\t" + fname + "_tmpl_phrase_id = phrases.RegisterTmplPhraseNames([]string{\n"
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for _, name := range c.langIndexToName {
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fout += "\t\t" + `"` + name + `"` + ",\n"
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}
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fout += "\t})\n"
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}
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fout += "}\n\n"
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}
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if c.lang == "normal" {
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fout += "// nolint\nfunc Template_" + fname + "(tmpl_" + fname + "_i interface{}, w io.Writer) error {\n"
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fout += `tmpl_` + fname + `_vars, ok := tmpl_` + fname + `_i.(` + expects + `)
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if !ok {
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return errors.New("invalid page struct value")
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}
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`
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fout += `var iw http.ResponseWriter
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gzw, ok := w.(c.GzipResponseWriter)
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if ok {
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iw = gzw.ResponseWriter
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}
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_ = iw
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`
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} else {
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fout += "// nolint\nfunc Template_" + fname + "(tmpl_" + fname + "_vars interface{}, w io.Writer) error {\n"
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}
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if len(c.langIndexToName) > 0 {
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fout += "var plist = phrases.GetTmplPhrasesBytes(" + fname + "_tmpl_phrase_id)\n"
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}
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fout += varString
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skipped := make(map[string]*SkipBlock) // map[templateName]*SkipBlock{map[atIndexAndAfter]skipThisMuch,lastCount}
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writeTextFrame := func(tmplName string, index int) {
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out := "w.Write(" + tmplName + "_frags[" + strconv.Itoa(index) + "]" + ")\n"
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c.detail("writing ", out)
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fout += out
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}
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for fid := 0; len(outBuf) > fid; fid++ {
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frame := outBuf[fid]
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c.detail(frame.Type + " frame")
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if frame.Type == "text" {
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c.detail(frame)
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oid := fid
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c.detail("oid:", oid)
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skipBlock, ok := skipped[frame.TemplateName]
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if !ok {
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skipBlock = &SkipBlock{make(map[int]int), 0, 0}
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skipped[frame.TemplateName] = skipBlock
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}
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skip := skipBlock.LastCount
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c.detailf("skipblock %+v\n", skipBlock)
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//var count int
|
|
for len(outBuf) > fid+1 && outBuf[fid+1].Type == "text" && outBuf[fid+1].TemplateName == frame.TemplateName {
|
|
c.detail("pre fid:", fid)
|
|
//count++
|
|
next := outBuf[fid+1]
|
|
c.detail("next frame:", next)
|
|
c.detail("frame frag:", c.fragBuf[frame.Extra2.(int)])
|
|
c.detail("next frag:", c.fragBuf[next.Extra2.(int)])
|
|
c.fragBuf[frame.Extra2.(int)].Body += c.fragBuf[next.Extra2.(int)].Body
|
|
c.fragBuf[next.Extra2.(int)].Seen = true
|
|
fid++
|
|
skipBlock.LastCount++
|
|
skipBlock.Frags[frame.Extra.(int)] = skipBlock.LastCount
|
|
c.detail("post fid:", fid)
|
|
}
|
|
writeTextFrame(frame.TemplateName, frame.Extra.(int)-skip)
|
|
} else if frame.Type == "varsub" || frame.Type == "cvarsub" {
|
|
fout += "w.Write(" + frame.Body + ")\n"
|
|
} else if frame.Type == "identifier" {
|
|
fout += frame.Body
|
|
} else if frame.Type == "lang" {
|
|
fout += "w.Write(plist[" + strconv.Itoa(frame.Extra.(int)) + "])\n"
|
|
} else {
|
|
fout += frame.Body
|
|
}
|
|
}
|
|
fout += "return nil\n}\n"
|
|
|
|
writeFrag := func(tmplName string, index int, body string) {
|
|
//c.detail("writing ", fragmentPrefix)
|
|
c.FragOut = append(c.FragOut, OutFrag{tmplName, index, body})
|
|
}
|
|
|
|
for _, frag := range c.fragBuf {
|
|
c.detail("frag: ", frag)
|
|
if frag.Seen {
|
|
c.detail("invisible")
|
|
continue
|
|
}
|
|
// TODO: What if the same template is invoked in multiple spots in a template?
|
|
skipBlock := skipped[frag.TemplateName]
|
|
skip := skipBlock.Frags[skipBlock.ClosestFragSkip]
|
|
_, ok := skipBlock.Frags[frag.Index]
|
|
if ok {
|
|
skipBlock.ClosestFragSkip = frag.Index
|
|
}
|
|
c.detailf("skipblock %+v\n", skipBlock)
|
|
c.detail("skipping ", skip)
|
|
index := frag.Index - skip
|
|
if index < 0 {
|
|
index = 0
|
|
}
|
|
writeFrag(frag.TemplateName, index, frag.Body)
|
|
}
|
|
|
|
fout = strings.Replace(fout, `))
|
|
w.Write([]byte(`, " + ", -1)
|
|
fout = strings.Replace(fout, "` + `", "", -1)
|
|
|
|
if c.config.Debug {
|
|
for index, count := range c.stats {
|
|
c.logger.Println(index+": ", strconv.Itoa(count))
|
|
}
|
|
c.logger.Println(" ")
|
|
}
|
|
c.detail("Output!")
|
|
c.detail(fout)
|
|
return fout, nil
|
|
}
|
|
|
|
func (c *CTemplateSet) rootIterate(tree *parse.Tree, con CContext) {
|
|
c.dumpCall("rootIterate", tree, con)
|
|
c.detail(tree.Root)
|
|
for _, node := range tree.Root.Nodes {
|
|
c.detail("Node:", node.String())
|
|
c.compileSwitch(con, node)
|
|
}
|
|
c.retCall("rootIterate")
|
|
}
|
|
|
|
func inSlice(haystack []string, expr string) bool {
|
|
for _, needle := range haystack {
|
|
if needle == expr {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (c *CTemplateSet) compileSwitch(con CContext, node parse.Node) {
|
|
c.dumpCall("compileSwitch", con, node)
|
|
defer c.retCall("compileSwitch")
|
|
switch node := node.(type) {
|
|
case *parse.ActionNode:
|
|
c.detail("Action Node")
|
|
if node.Pipe == nil {
|
|
break
|
|
}
|
|
for _, cmd := range node.Pipe.Cmds {
|
|
c.compileSubSwitch(con, cmd)
|
|
}
|
|
case *parse.IfNode:
|
|
c.detail("If Node:")
|
|
c.detail("node.Pipe", node.Pipe)
|
|
var expr string
|
|
for _, cmd := range node.Pipe.Cmds {
|
|
c.detail("If Node Bit:", cmd)
|
|
c.detail("Bit Type:", reflect.ValueOf(cmd).Type().Name())
|
|
expr += c.compileExprSwitch(con, cmd)
|
|
c.detail("Expression Step:", c.compileExprSwitch(con, cmd))
|
|
}
|
|
|
|
c.detail("Expression:", expr)
|
|
// Simple member / guest optimisation for now
|
|
// TODO: Expand upon this
|
|
userExprs, negUserExprs := buildUserExprs(con.RootHolder)
|
|
if c.guestOnly {
|
|
c.detail("optimising away member branch")
|
|
if inSlice(userExprs, expr) {
|
|
c.detail("positive conditional:", expr)
|
|
if node.ElseList != nil {
|
|
c.compileSwitch(con, node.ElseList)
|
|
}
|
|
return
|
|
} else if inSlice(negUserExprs, expr) {
|
|
c.detail("negative conditional:", expr)
|
|
c.compileSwitch(con, node.List)
|
|
return
|
|
}
|
|
} else if c.memberOnly {
|
|
c.detail("optimising away guest branch")
|
|
if (con.RootHolder + ".CurrentUser.Loggedin") == expr {
|
|
c.detail("positive conditional:", expr)
|
|
c.compileSwitch(con, node.List)
|
|
return
|
|
} else if ("!" + con.RootHolder + ".CurrentUser.Loggedin") == expr {
|
|
c.detail("negative conditional:", expr)
|
|
if node.ElseList != nil {
|
|
c.compileSwitch(con, node.ElseList)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
|
|
con.Push("startif", "if "+expr+" {\n")
|
|
c.compileSwitch(con, node.List)
|
|
if node.ElseList == nil {
|
|
c.detail("Selected Branch 1")
|
|
con.Push("endif", "}\n")
|
|
} else {
|
|
c.detail("Selected Branch 2")
|
|
con.Push("endif", "}")
|
|
con.Push("startelse", " else {\n")
|
|
c.compileSwitch(con, node.ElseList)
|
|
con.Push("endelse", "}\n")
|
|
}
|
|
case *parse.ListNode:
|
|
c.detailf("List Node: %+v\n", node)
|
|
for _, subnode := range node.Nodes {
|
|
c.compileSwitch(con, subnode)
|
|
}
|
|
case *parse.RangeNode:
|
|
c.compileRangeNode(con, node)
|
|
case *parse.TemplateNode:
|
|
c.compileSubTemplate(con, node)
|
|
case *parse.TextNode:
|
|
c.addText(con, node.Text)
|
|
default:
|
|
c.unknownNode(node)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) addText(con CContext, text []byte) {
|
|
c.dumpCall("addText", con, text)
|
|
tmpText := bytes.TrimSpace(text)
|
|
if len(tmpText) == 0 {
|
|
return
|
|
}
|
|
nodeText := string(text)
|
|
c.detail("con.TemplateName: ", con.TemplateName)
|
|
fragIndex := c.fragmentCursor[con.TemplateName]
|
|
_, ok := c.fragOnce[con.TemplateName]
|
|
c.fragBuf = append(c.fragBuf, Fragment{nodeText, con.TemplateName, fragIndex, ok})
|
|
con.PushText(strconv.Itoa(fragIndex), fragIndex, len(c.fragBuf)-1)
|
|
c.fragmentCursor[con.TemplateName] = fragIndex + 1
|
|
}
|
|
|
|
func (c *CTemplateSet) compileRangeNode(con CContext, node *parse.RangeNode) {
|
|
c.dumpCall("compileRangeNode", con, node)
|
|
defer c.retCall("compileRangeNode")
|
|
c.detail("node.Pipe: ", node.Pipe)
|
|
var expr string
|
|
var outVal reflect.Value
|
|
for _, cmd := range node.Pipe.Cmds {
|
|
c.detail("Range Bit:", cmd)
|
|
// ! This bit is slightly suspect, hm.
|
|
expr, outVal = c.compileReflectSwitch(con, cmd)
|
|
}
|
|
c.detail("Expr:", expr)
|
|
c.detail("Range Kind Switch!")
|
|
|
|
startIf := func(item reflect.Value, useCopy bool) {
|
|
con.Push("startif", "if len("+expr+") != 0 {\n")
|
|
startIndex := con.StartLoop("for _, item := range " + expr + " {\n")
|
|
ccon := con
|
|
var depth string
|
|
if ccon.VarHolder == "item" {
|
|
depth = strings.TrimPrefix(ccon.VarHolder, "item")
|
|
if depth != "" {
|
|
idepth, err := strconv.Atoi(depth)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
depth = strconv.Itoa(idepth + 1)
|
|
}
|
|
}
|
|
ccon.VarHolder = "item" + depth
|
|
ccon.HoldReflect = item
|
|
c.compileSwitch(ccon, node.List)
|
|
if con.LastBufIndex() == startIndex {
|
|
con.DiscardAndAfter(startIndex - 1)
|
|
return
|
|
}
|
|
con.EndLoop("}\n")
|
|
c.afterTemplate(con, startIndex)
|
|
if node.ElseList != nil {
|
|
con.Push("endif", "}")
|
|
con.Push("startelse", " else {\n")
|
|
if !useCopy {
|
|
ccon = con
|
|
}
|
|
c.compileSwitch(ccon, node.ElseList)
|
|
con.Push("endelse", "}\n")
|
|
} else {
|
|
con.Push("endif", "}\n")
|
|
}
|
|
}
|
|
|
|
switch outVal.Kind() {
|
|
case reflect.Map:
|
|
var item reflect.Value
|
|
for _, key := range outVal.MapKeys() {
|
|
item = outVal.MapIndex(key)
|
|
}
|
|
c.detail("Range item:", item)
|
|
if !item.IsValid() {
|
|
c.critical("expr:", expr)
|
|
c.critical("con.VarHolder", con.VarHolder)
|
|
panic("item" + "^\n" + "Invalid map. Maybe, it doesn't have any entries for the template engine to analyse?")
|
|
}
|
|
startIf(item, true)
|
|
case reflect.Slice:
|
|
if outVal.Len() == 0 {
|
|
c.critical("expr:", expr)
|
|
c.critical("con.VarHolder", con.VarHolder)
|
|
panic("The sample data needs at-least one or more elements for the slices. We're looking into removing this requirement at some point!")
|
|
}
|
|
startIf(outVal.Index(0), false)
|
|
case reflect.Invalid:
|
|
return
|
|
}
|
|
}
|
|
|
|
// ! Temporary, we probably want something that is good with non-struct pointers too
|
|
// For compileSubSwitch and compileSubTemplate
|
|
func (c *CTemplateSet) skipStructPointers(cur reflect.Value, id string) reflect.Value {
|
|
if cur.Kind() == reflect.Ptr {
|
|
c.detail("Looping over pointer")
|
|
for cur.Kind() == reflect.Ptr {
|
|
cur = cur.Elem()
|
|
}
|
|
c.detail("Data Kind:", cur.Kind().String())
|
|
c.detail("Field Bit:", id)
|
|
}
|
|
return cur
|
|
}
|
|
|
|
// For compileSubSwitch and compileSubTemplate
|
|
func (c *CTemplateSet) checkIfValid(cur reflect.Value, varHolder string, holdreflect reflect.Value, varBit string, multiline bool) {
|
|
if !cur.IsValid() {
|
|
c.critical("Debug Data:")
|
|
c.critical("Holdreflect:", holdreflect)
|
|
c.critical("Holdreflect.Kind():", holdreflect.Kind())
|
|
if !c.config.SuperDebug {
|
|
c.critical("cur.Kind():", cur.Kind().String())
|
|
}
|
|
c.critical("")
|
|
if !multiline {
|
|
panic(varHolder + varBit + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
panic(varBit + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) compileSubSwitch(con CContext, node *parse.CommandNode) {
|
|
c.dumpCall("compileSubSwitch", con, node)
|
|
switch n := node.Args[0].(type) {
|
|
case *parse.FieldNode:
|
|
c.detail("Field Node:", n.Ident)
|
|
/* Use reflect to determine if the field is for a method, otherwise assume it's a variable. Variable declarations are coming soon! */
|
|
cur := con.HoldReflect
|
|
|
|
var varBit string
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
varBit += ".(" + cur.Type().Name() + ")"
|
|
}
|
|
|
|
var assLines string
|
|
multiline := false
|
|
for _, id := range n.Ident {
|
|
c.detail("Data Kind:", cur.Kind().String())
|
|
c.detail("Field Bit:", id)
|
|
cur = c.skipStructPointers(cur, id)
|
|
c.checkIfValid(cur, con.VarHolder, con.HoldReflect, varBit, multiline)
|
|
|
|
c.detail("in-loop varBit: " + varBit)
|
|
if cur.Kind() == reflect.Map {
|
|
cur = cur.MapIndex(reflect.ValueOf(id))
|
|
varBit += "[\"" + id + "\"]"
|
|
cur = c.skipStructPointers(cur, id)
|
|
|
|
if cur.Kind() == reflect.Struct || cur.Kind() == reflect.Interface {
|
|
// TODO: Move the newVarByte declaration to the top level or to the if level, if a dispInt is only used in a particular if statement
|
|
var dispStr, newVarByte string
|
|
if cur.Kind() == reflect.Interface {
|
|
dispStr = "Int"
|
|
if !c.hasDispInt {
|
|
newVarByte = ":"
|
|
c.hasDispInt = true
|
|
}
|
|
}
|
|
// TODO: De-dupe identical struct types rather than allocating a variable for each one
|
|
if cur.Kind() == reflect.Struct {
|
|
dispStr = "Struct" + strconv.Itoa(c.localDispStructIndex)
|
|
newVarByte = ":"
|
|
c.localDispStructIndex++
|
|
}
|
|
con.VarHolder = "disp" + dispStr
|
|
varBit = con.VarHolder + " " + newVarByte + "= " + con.VarHolder + varBit + "\n"
|
|
multiline = true
|
|
} else {
|
|
continue
|
|
}
|
|
}
|
|
if cur.Kind() != reflect.Interface {
|
|
cur = cur.FieldByName(id)
|
|
varBit += "." + id
|
|
}
|
|
|
|
// TODO: Handle deeply nested pointers mixed with interfaces mixed with pointers better
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
varBit += ".("
|
|
// TODO: Surely, there's a better way of doing this?
|
|
if cur.Type().PkgPath() != "main" && cur.Type().PkgPath() != "" {
|
|
c.importMap["html/template"] = "html/template"
|
|
varBit += strings.TrimPrefix(cur.Type().PkgPath(), "html/") + "."
|
|
}
|
|
varBit += cur.Type().Name() + ")"
|
|
}
|
|
c.detail("End Cycle: ", varBit)
|
|
}
|
|
|
|
if multiline {
|
|
assSplit := strings.Split(varBit, "\n")
|
|
varBit = assSplit[len(assSplit)-1]
|
|
assSplit = assSplit[:len(assSplit)-1]
|
|
assLines = strings.Join(assSplit, "\n") + "\n"
|
|
}
|
|
c.compileVarSub(con, con.VarHolder+varBit, cur, assLines, func(in string) string {
|
|
for _, varItem := range c.varList {
|
|
if strings.HasPrefix(in, varItem.Destination) {
|
|
in = strings.Replace(in, varItem.Destination, varItem.Name, 1)
|
|
}
|
|
}
|
|
return in
|
|
})
|
|
case *parse.DotNode:
|
|
c.detail("Dot Node:", node.String())
|
|
c.compileVarSub(con, con.VarHolder, con.HoldReflect, "", nil)
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
case *parse.VariableNode:
|
|
c.detail("Variable Node:", n.String())
|
|
c.detail(n.Ident)
|
|
varname, reflectVal := c.compileIfVarSub(con, n.String())
|
|
c.compileVarSub(con, varname, reflectVal, "", nil)
|
|
case *parse.StringNode:
|
|
con.Push("stringnode", n.Quoted)
|
|
case *parse.IdentifierNode:
|
|
c.detail("Identifier Node:", node)
|
|
c.detail("Identifier Node Args:", node.Args)
|
|
out, outval, lit, noident := c.compileIdentSwitch(con, node)
|
|
if noident {
|
|
return
|
|
} else if lit {
|
|
con.Push("identifier", out)
|
|
return
|
|
}
|
|
c.compileVarSub(con, out, outval, "", nil)
|
|
default:
|
|
c.unknownNode(node)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) compileExprSwitch(con CContext, node *parse.CommandNode) (out string) {
|
|
c.dumpCall("compileExprSwitch", con, node)
|
|
firstWord := node.Args[0]
|
|
switch n := firstWord.(type) {
|
|
case *parse.FieldNode:
|
|
if c.config.SuperDebug {
|
|
c.logger.Println("Field Node:", n.Ident)
|
|
for _, id := range n.Ident {
|
|
c.logger.Println("Field Bit:", id)
|
|
}
|
|
}
|
|
/* Use reflect to determine if the field is for a method, otherwise assume it's a variable. Coming Soon. */
|
|
out = c.compileBoolSub(con, n.String())
|
|
case *parse.ChainNode:
|
|
c.detail("Chain Node:", n.Node)
|
|
c.detail("Node Args:", node.Args)
|
|
case *parse.IdentifierNode:
|
|
c.detail("Identifier Node:", node)
|
|
c.detail("Node Args:", node.Args)
|
|
out = c.compileIdentSwitchN(con, node)
|
|
case *parse.DotNode:
|
|
out = con.VarHolder
|
|
case *parse.VariableNode:
|
|
c.detail("Variable Node:", n.String())
|
|
c.detail("Node Identifier:", n.Ident)
|
|
out, _ = c.compileIfVarSub(con, n.String())
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
case *parse.PipeNode:
|
|
c.detail("Pipe Node!")
|
|
c.detail(n)
|
|
c.detail("Node Args:", node.Args)
|
|
out += c.compileIdentSwitchN(con, node)
|
|
default:
|
|
c.unknownNode(firstWord)
|
|
}
|
|
c.retCall("compileExprSwitch", out)
|
|
return out
|
|
}
|
|
|
|
func (c *CTemplateSet) unknownNode(node parse.Node) {
|
|
c.logger.Println("Unknown Kind:", reflect.ValueOf(node).Elem().Kind())
|
|
c.logger.Println("Unknown Type:", reflect.ValueOf(node).Elem().Type().Name())
|
|
panic("I don't know what node this is! Grr...")
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIdentSwitchN(con CContext, node *parse.CommandNode) (out string) {
|
|
c.detail("in compileIdentSwitchN")
|
|
out, _, _, _ = c.compileIdentSwitch(con, node)
|
|
return out
|
|
}
|
|
|
|
func (c *CTemplateSet) dumpSymbol(pos int, node *parse.CommandNode, symbol string) {
|
|
c.detail("symbol: ", symbol)
|
|
c.detail("node.Args[pos + 1]", node.Args[pos+1])
|
|
c.detail("node.Args[pos + 2]", node.Args[pos+2])
|
|
}
|
|
|
|
func (c *CTemplateSet) compareFunc(con CContext, pos int, node *parse.CommandNode, compare string) (out string) {
|
|
c.dumpSymbol(pos, node, compare)
|
|
return c.compileIfVarSubN(con, node.Args[pos+1].String()) + " " + compare + " " + c.compileIfVarSubN(con, node.Args[pos+2].String())
|
|
}
|
|
|
|
func (c *CTemplateSet) simpleMath(con CContext, pos int, node *parse.CommandNode, symbol string) (out string, val reflect.Value) {
|
|
leftParam, val2 := c.compileIfVarSub(con, node.Args[pos+1].String())
|
|
rightParam, val3 := c.compileIfVarSub(con, node.Args[pos+2].String())
|
|
|
|
if val2.IsValid() {
|
|
val = val2
|
|
} else if val3.IsValid() {
|
|
val = val3
|
|
} else {
|
|
// TODO: What does this do?
|
|
numSample := 1
|
|
val = reflect.ValueOf(numSample)
|
|
}
|
|
c.dumpSymbol(pos, node, symbol)
|
|
return leftParam + " " + symbol + " " + rightParam, val
|
|
}
|
|
|
|
func (c *CTemplateSet) compareJoin(con CContext, pos int, node *parse.CommandNode, symbol string) (pos2 int, out string) {
|
|
c.detailf("Building %s function", symbol)
|
|
if pos == 0 {
|
|
c.logger.Println("pos:", pos)
|
|
panic(symbol + " is missing a left operand")
|
|
}
|
|
if len(node.Args) <= pos {
|
|
c.logger.Println("post pos:", pos)
|
|
c.logger.Println("len(node.Args):", len(node.Args))
|
|
panic(symbol + " is missing a right operand")
|
|
}
|
|
|
|
left := c.compileBoolSub(con, node.Args[pos-1].String())
|
|
_, funcExists := c.funcMap[node.Args[pos+1].String()]
|
|
|
|
var right string
|
|
if !funcExists {
|
|
right = c.compileBoolSub(con, node.Args[pos+1].String())
|
|
}
|
|
out = left + " " + symbol + " " + right
|
|
|
|
c.detail("Left operand:", node.Args[pos-1])
|
|
c.detail("Right operand:", node.Args[pos+1])
|
|
if !funcExists {
|
|
pos++
|
|
}
|
|
c.detail("pos:", pos)
|
|
c.detail("len(node.Args):", len(node.Args))
|
|
|
|
return pos, out
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIdentSwitch(con CContext, node *parse.CommandNode) (out string, val reflect.Value, literal bool, notident bool) {
|
|
c.dumpCall("compileIdentSwitch", con, node)
|
|
litString := func(inner string, bytes bool) {
|
|
if !bytes {
|
|
inner = "StringToBytes(" + inner + ")"
|
|
}
|
|
out = "w.Write(" + inner + ")\n"
|
|
literal = true
|
|
}
|
|
ArgLoop:
|
|
for pos := 0; pos < len(node.Args); pos++ {
|
|
id := node.Args[pos]
|
|
c.detail("pos:", pos)
|
|
c.detail("ID:", id)
|
|
switch id.String() {
|
|
case "not":
|
|
out += "!"
|
|
case "or", "and":
|
|
var rout string
|
|
pos, rout = c.compareJoin(con, pos, node, c.funcMap[id.String()].(string)) // TODO: Test this
|
|
out += rout
|
|
case "le", "lt", "gt", "ge", "eq", "ne":
|
|
out += c.compareFunc(con, pos, node, c.funcMap[id.String()].(string))
|
|
break ArgLoop
|
|
case "add", "subtract", "divide", "multiply":
|
|
rout, rval := c.simpleMath(con, pos, node, c.funcMap[id.String()].(string))
|
|
out += rout
|
|
val = rval
|
|
break ArgLoop
|
|
case "elapsed":
|
|
leftOperand := node.Args[pos+1].String()
|
|
leftParam, _ := c.compileIfVarSub(con, leftOperand)
|
|
// TODO: Refactor this
|
|
// TODO: Validate that this is actually a time.Time
|
|
litString("time.Since("+leftParam+").String()", false)
|
|
c.importMap["time"] = "time"
|
|
break ArgLoop
|
|
case "dock":
|
|
// TODO: Implement string literals properly
|
|
leftOperand := node.Args[pos+1].String()
|
|
rightOperand := node.Args[pos+2].String()
|
|
if len(leftOperand) == 0 || len(rightOperand) == 0 {
|
|
panic("The left or right operand for function dock cannot be left blank")
|
|
}
|
|
leftParam := leftOperand
|
|
if leftOperand[0] != '"' {
|
|
leftParam, _ = c.compileIfVarSub(con, leftParam)
|
|
}
|
|
if rightOperand[0] == '"' {
|
|
panic("The right operand for function dock cannot be a string")
|
|
}
|
|
rightParam, val3 := c.compileIfVarSub(con, rightOperand)
|
|
if !val3.IsValid() {
|
|
panic("val3 is invalid")
|
|
}
|
|
val = val3
|
|
|
|
// TODO: Refactor this
|
|
litString("c.BuildWidget("+leftParam+","+rightParam+")", false)
|
|
break ArgLoop
|
|
case "hasWidgets":
|
|
// TODO: Implement string literals properly
|
|
leftOperand := node.Args[pos+1].String()
|
|
rightOperand := node.Args[pos+2].String()
|
|
if len(leftOperand) == 0 || len(rightOperand) == 0 {
|
|
panic("The left or right operand for function dock cannot be left blank")
|
|
}
|
|
leftParam := leftOperand
|
|
if leftOperand[0] != '"' {
|
|
leftParam, _ = c.compileIfVarSub(con, leftParam)
|
|
}
|
|
if rightOperand[0] == '"' {
|
|
panic("The right operand for function dock cannot be a string")
|
|
}
|
|
rightParam, val3 := c.compileIfVarSub(con, rightOperand)
|
|
if !val3.IsValid() {
|
|
panic("val3 is invalid")
|
|
}
|
|
val = val3
|
|
|
|
// TODO: Refactor this
|
|
out = "c.HasWidgets(" + leftParam + "," + rightParam + ")"
|
|
literal = true
|
|
break ArgLoop
|
|
case "lang":
|
|
// TODO: Implement string literals properly
|
|
leftOperand := node.Args[pos+1].String()
|
|
if len(leftOperand) == 0 {
|
|
panic("The left operand for the language string cannot be left blank")
|
|
}
|
|
if leftOperand[0] == '"' {
|
|
// ! Slightly crude but it does the job
|
|
leftParam := strings.Replace(leftOperand, "\"", "", -1)
|
|
c.langIndexToName = append(c.langIndexToName, leftParam)
|
|
notident = true
|
|
con.PushPhrase(len(c.langIndexToName) - 1)
|
|
} else {
|
|
leftParam := leftOperand
|
|
if leftOperand[0] != '"' {
|
|
leftParam, _ = c.compileIfVarSub(con, leftParam)
|
|
}
|
|
// TODO: Add an optimisation if it's a string literal passsed in from a parent template rather than a true dynamic
|
|
litString("phrases.GetTmplPhrasef("+leftParam+")", false)
|
|
c.importMap[langPkg] = langPkg
|
|
}
|
|
break ArgLoop
|
|
case "langf":
|
|
// TODO: Implement string literals properly
|
|
leftOperand := node.Args[pos+1].String()
|
|
if len(leftOperand) == 0 {
|
|
panic("The left operand for the language string cannot be left blank")
|
|
}
|
|
if leftOperand[0] != '"' {
|
|
panic("Phrase names cannot be dynamic")
|
|
}
|
|
|
|
var olist []string
|
|
for i := pos + 2; i < len(node.Args); i++ {
|
|
op := node.Args[i].String()
|
|
if op != "" {
|
|
if op[0] == '.' || op[0] == '$' {
|
|
panic("langf args cannot be dynamic")
|
|
}
|
|
if op[0] != '"' && !unicode.IsDigit(rune(op[0])) {
|
|
break
|
|
}
|
|
olist = append(olist, op)
|
|
}
|
|
}
|
|
if len(olist) == 0 {
|
|
panic("You must provide parameters for langf")
|
|
}
|
|
|
|
ob := ","
|
|
for _, op := range olist {
|
|
allNum := true
|
|
for _, o := range op {
|
|
if !unicode.IsDigit(o) {
|
|
allNum = false
|
|
}
|
|
}
|
|
if allNum {
|
|
ob += strings.Replace(op, "\"", "\\\"", -1) + ","
|
|
} else {
|
|
ob += ob + ","
|
|
}
|
|
}
|
|
if ob != "" {
|
|
ob = ob[:len(ob)-1]
|
|
}
|
|
|
|
// TODO: Implement string literals properly
|
|
// ! Slightly crude but it does the job
|
|
litString("phrases.GetTmplPhrasef("+leftOperand+ob+")", false)
|
|
c.importMap[langPkg] = langPkg
|
|
break ArgLoop
|
|
case "level":
|
|
// TODO: Implement level literals
|
|
leftOperand := node.Args[pos+1].String()
|
|
if len(leftOperand) == 0 {
|
|
panic("The leftoperand for function level cannot be left blank")
|
|
}
|
|
leftParam, _ := c.compileIfVarSub(con, leftOperand)
|
|
// TODO: Refactor this
|
|
litString("phrases.GetLevelPhrase("+leftParam+")", false)
|
|
c.importMap[langPkg] = langPkg
|
|
break ArgLoop
|
|
case "bunit":
|
|
// TODO: Implement bunit literals
|
|
leftOperand := node.Args[pos+1].String()
|
|
if len(leftOperand) == 0 {
|
|
panic("The leftoperand for function buint cannot be left blank")
|
|
}
|
|
leftParam, _ := c.compileIfVarSub(con, leftOperand)
|
|
out = "{\nbyteFloat, unit := c.ConvertByteUnit(float64(" + leftParam + "))\n"
|
|
out += "w.Write(fmt.Sprintf(\"%.1f\", byteFloat) + unit)\n"
|
|
literal = true
|
|
break ArgLoop
|
|
case "abstime":
|
|
// TODO: Implement level literals
|
|
leftOperand := node.Args[pos+1].String()
|
|
if len(leftOperand) == 0 {
|
|
panic("The leftoperand for function abstime cannot be left blank")
|
|
}
|
|
leftParam, _ := c.compileIfVarSub(con, leftOperand)
|
|
// TODO: Refactor this
|
|
litString(leftParam+".Format(\"2006-01-02 15:04:05\")", false)
|
|
break ArgLoop
|
|
case "reltime":
|
|
// TODO: Implement level literals
|
|
leftOperand := node.Args[pos+1].String()
|
|
if len(leftOperand) == 0 {
|
|
panic("The leftoperand for function reltime cannot be left blank")
|
|
}
|
|
leftParam, _ := c.compileIfVarSub(con, leftOperand)
|
|
// TODO: Refactor this
|
|
litString("c.RelativeTime("+leftParam+")", false)
|
|
break ArgLoop
|
|
case "scope":
|
|
literal = true
|
|
break ArgLoop
|
|
case "dyntmpl":
|
|
var pageParam, headParam string
|
|
// TODO: Implement string literals properly
|
|
// TODO: Should we check to see if pos+3 is within the bounds of the slice?
|
|
nameOperand := node.Args[pos+1].String()
|
|
pageOperand := node.Args[pos+2].String()
|
|
headOperand := node.Args[pos+3].String()
|
|
if len(nameOperand) == 0 || len(pageOperand) == 0 || len(headOperand) == 0 {
|
|
panic("None of the three operands for function dyntmpl can be left blank")
|
|
}
|
|
nameParam := nameOperand
|
|
if nameOperand[0] != '"' {
|
|
nameParam, _ = c.compileIfVarSub(con, nameParam)
|
|
}
|
|
if pageOperand[0] == '"' {
|
|
panic("The page operand for function dyntmpl cannot be a string")
|
|
}
|
|
if headOperand[0] == '"' {
|
|
panic("The head operand for function dyntmpl cannot be a string")
|
|
}
|
|
|
|
pageParam, val3 := c.compileIfVarSub(con, pageOperand)
|
|
if !val3.IsValid() {
|
|
panic("val3 is invalid")
|
|
}
|
|
headParam, val4 := c.compileIfVarSub(con, headOperand)
|
|
if !val4.IsValid() {
|
|
panic("val4 is invalid")
|
|
}
|
|
val = val4
|
|
|
|
// TODO: Refactor this
|
|
// TODO: Call the template function directly rather than going through RunThemeTemplate to eliminate a round of indirection?
|
|
out = "{\nerr := " + headParam + ".Theme.RunTmpl(" + nameParam + "," + pageParam + ",w)\n"
|
|
out += "if err != nil {\nreturn err\n}\n}\n"
|
|
literal = true
|
|
break ArgLoop
|
|
case "flush":
|
|
if c.lang == "js" {
|
|
continue
|
|
}
|
|
out = "if fl, ok := iw.(http.Flusher); ok {\n"
|
|
out += "fl.Flush()\n"
|
|
out += "}\n"
|
|
literal = true
|
|
c.importMap["net/http"] = "net/http"
|
|
break ArgLoop
|
|
default:
|
|
c.detail("Variable!")
|
|
if len(node.Args) > (pos + 1) {
|
|
nextNode := node.Args[pos+1].String()
|
|
if nextNode == "or" || nextNode == "and" {
|
|
continue
|
|
}
|
|
}
|
|
out += c.compileIfVarSubN(con, id.String())
|
|
}
|
|
}
|
|
c.retCall("compileIdentSwitch", out, val, literal)
|
|
return out, val, literal, notident
|
|
}
|
|
|
|
func (c *CTemplateSet) compileReflectSwitch(con CContext, node *parse.CommandNode) (out string, outVal reflect.Value) {
|
|
c.dumpCall("compileReflectSwitch", con, node)
|
|
firstWord := node.Args[0]
|
|
switch n := firstWord.(type) {
|
|
case *parse.FieldNode:
|
|
if c.config.SuperDebug {
|
|
c.logger.Println("Field Node:", n.Ident)
|
|
for _, id := range n.Ident {
|
|
c.logger.Println("Field Bit:", id)
|
|
}
|
|
}
|
|
/* Use reflect to determine if the field is for a method, otherwise assume it's a variable. Coming Soon. */
|
|
return c.compileIfVarSub(con, n.String())
|
|
case *parse.ChainNode:
|
|
c.detail("Chain Node:", n.Node)
|
|
c.detail("node.Args:", node.Args)
|
|
case *parse.DotNode:
|
|
return con.VarHolder, con.HoldReflect
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
default:
|
|
//panic("I don't know what node this is")
|
|
}
|
|
return out, outVal
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIfVarSubN(con CContext, varname string) (out string) {
|
|
c.dumpCall("compileIfVarSubN", con, varname)
|
|
out, _ = c.compileIfVarSub(con, varname)
|
|
return out
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIfVarSub(con CContext, varname string) (out string, val reflect.Value) {
|
|
c.dumpCall("compileIfVarSub", con, varname)
|
|
cur := con.HoldReflect
|
|
if varname[0] != '.' && varname[0] != '$' {
|
|
return varname, cur
|
|
}
|
|
|
|
stepInterface := func() {
|
|
nobreak := (cur.Type().Name() == "nobreak")
|
|
c.detailf("cur.Type().Name(): %+v\n", cur.Type().Name())
|
|
if cur.Kind() == reflect.Interface && !nobreak {
|
|
cur = cur.Elem()
|
|
out += ".(" + cur.Type().Name() + ")"
|
|
}
|
|
}
|
|
|
|
bits := strings.Split(varname, ".")
|
|
if varname[0] == '$' {
|
|
var res VarItemReflect
|
|
if varname[1] == '.' {
|
|
res = c.localVars[con.TemplateName]["."]
|
|
} else {
|
|
res = c.localVars[con.TemplateName][strings.TrimPrefix(bits[0], "$")]
|
|
}
|
|
out += res.Destination
|
|
cur = res.Value
|
|
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
}
|
|
} else {
|
|
out += con.VarHolder
|
|
stepInterface()
|
|
}
|
|
bits[0] = strings.TrimPrefix(bits[0], "$")
|
|
|
|
dumpKind := func(pre string) {
|
|
c.detail(pre+" Kind:", cur.Kind())
|
|
c.detail(pre+" Type:", cur.Type().Name())
|
|
}
|
|
dumpKind("Cur")
|
|
for _, bit := range bits {
|
|
c.detail("Variable Field:", bit)
|
|
if bit == "" {
|
|
continue
|
|
}
|
|
|
|
// TODO: Fix this up so that it works for regular pointers and not just struct pointers. Ditto for the other cur.Kind() == reflect.Ptr we have in this file
|
|
if cur.Kind() == reflect.Ptr {
|
|
c.detail("Looping over pointer")
|
|
for cur.Kind() == reflect.Ptr {
|
|
cur = cur.Elem()
|
|
}
|
|
c.detail("Data Kind:", cur.Kind().String())
|
|
c.detail("Field Bit:", bit)
|
|
}
|
|
|
|
cur = cur.FieldByName(bit)
|
|
out += "." + bit
|
|
if !cur.IsValid() {
|
|
c.logger.Println("cur: ", cur)
|
|
panic(out + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
stepInterface()
|
|
if !cur.IsValid() {
|
|
c.logger.Println("cur: ", cur)
|
|
panic(out + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
dumpKind("Data")
|
|
}
|
|
|
|
c.detail("Out Value:", out)
|
|
dumpKind("Out")
|
|
for _, varItem := range c.varList {
|
|
if strings.HasPrefix(out, varItem.Destination) {
|
|
out = strings.Replace(out, varItem.Destination, varItem.Name, 1)
|
|
}
|
|
}
|
|
|
|
_, ok := c.stats[out]
|
|
if ok {
|
|
c.stats[out]++
|
|
} else {
|
|
c.stats[out] = 1
|
|
}
|
|
|
|
c.retCall("compileIfVarSub", out, cur)
|
|
return out, cur
|
|
}
|
|
|
|
func (c *CTemplateSet) compileBoolSub(con CContext, varname string) string {
|
|
c.dumpCall("compileBoolSub", con, varname)
|
|
out, val := c.compileIfVarSub(con, varname)
|
|
// TODO: What if it's a pointer or an interface? I *think* we've got pointers handled somewhere, but not interfaces which we don't know the types of at compile time
|
|
switch val.Kind() {
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64:
|
|
out += " > 0"
|
|
case reflect.Bool: // Do nothing
|
|
case reflect.String:
|
|
out += " != \"\""
|
|
case reflect.Slice, reflect.Map:
|
|
out = "len(" + out + ") != 0"
|
|
default:
|
|
c.logger.Println("Variable Name:", varname)
|
|
c.logger.Println("Variable Holder:", con.VarHolder)
|
|
c.logger.Println("Variable Kind:", con.HoldReflect.Kind())
|
|
panic("I don't know what this variable's type is o.o\n")
|
|
}
|
|
c.retCall("compileBoolSub", out)
|
|
return out
|
|
}
|
|
|
|
// For debugging the template generator
|
|
func (c *CTemplateSet) debugParam(param interface{}, depth int) (pstr string) {
|
|
switch p := param.(type) {
|
|
case CContext:
|
|
return "con,"
|
|
case reflect.Value:
|
|
if p.Kind() == reflect.Ptr || p.Kind() == reflect.Interface {
|
|
for p.Kind() == reflect.Ptr || p.Kind() == reflect.Interface {
|
|
if p.Kind() == reflect.Ptr {
|
|
pstr += "*"
|
|
} else {
|
|
pstr += "£"
|
|
}
|
|
p = p.Elem()
|
|
}
|
|
}
|
|
kind := p.Kind().String()
|
|
if kind != "struct" {
|
|
pstr += kind
|
|
} else {
|
|
pstr += p.Type().Name()
|
|
}
|
|
return pstr + ","
|
|
case string:
|
|
return "\"" + p + "\","
|
|
case int:
|
|
return strconv.Itoa(p) + ","
|
|
case bool:
|
|
if p {
|
|
return "true,"
|
|
}
|
|
return "false,"
|
|
case func(string) string:
|
|
if p == nil {
|
|
return "nil,"
|
|
}
|
|
return "func(string) string),"
|
|
default:
|
|
return "?,"
|
|
}
|
|
}
|
|
func (c *CTemplateSet) dumpCall(name string, params ...interface{}) {
|
|
var pstr string
|
|
for _, param := range params {
|
|
pstr += c.debugParam(param, 0)
|
|
}
|
|
if len(pstr) > 0 {
|
|
pstr = pstr[:len(pstr)-1]
|
|
}
|
|
c.detail("called " + name + "(" + pstr + ")")
|
|
}
|
|
func (c *CTemplateSet) retCall(name string, params ...interface{}) {
|
|
var pstr string
|
|
for _, param := range params {
|
|
pstr += c.debugParam(param, 0)
|
|
}
|
|
if len(pstr) > 0 {
|
|
pstr = pstr[:len(pstr)-1]
|
|
}
|
|
c.detail("returned from " + name + " => (" + pstr + ")")
|
|
}
|
|
|
|
func buildUserExprs(holder string) ([]string, []string) {
|
|
userExprs := []string{
|
|
holder + ".CurrentUser.Loggedin",
|
|
holder + ".CurrentUser.IsSuperMod",
|
|
holder + ".CurrentUser.IsAdmin",
|
|
}
|
|
negUserExprs := []string{
|
|
"!" + holder + ".CurrentUser.Loggedin",
|
|
"!" + holder + ".CurrentUser.IsSuperMod",
|
|
"!" + holder + ".CurrentUser.IsAdmin",
|
|
}
|
|
return userExprs, negUserExprs
|
|
}
|
|
|
|
func (c *CTemplateSet) compileVarSub(con CContext, varname string, val reflect.Value, assLines string, onEnd func(string) string) {
|
|
c.dumpCall("compileVarSub", con, varname, val, assLines, onEnd)
|
|
defer c.retCall("compileVarSub")
|
|
if onEnd == nil {
|
|
onEnd = func(in string) string {
|
|
return in
|
|
}
|
|
}
|
|
|
|
// Is this a literal string?
|
|
if len(varname) != 0 && varname[0] == '"' {
|
|
con.Push("lvarsub", onEnd(assLines+"w.Write(StringToBytes("+varname+"))\n"))
|
|
return
|
|
}
|
|
for _, varItem := range c.varList {
|
|
if strings.HasPrefix(varname, varItem.Destination) {
|
|
varname = strings.Replace(varname, varItem.Destination, varItem.Name, 1)
|
|
}
|
|
}
|
|
|
|
_, ok := c.stats[varname]
|
|
if ok {
|
|
c.stats[varname]++
|
|
} else {
|
|
c.stats[varname] = 1
|
|
}
|
|
if val.Kind() == reflect.Interface {
|
|
val = val.Elem()
|
|
}
|
|
if val.Kind() == reflect.Ptr {
|
|
for val.Kind() == reflect.Ptr {
|
|
val = val.Elem()
|
|
varname = "*" + varname
|
|
}
|
|
}
|
|
|
|
c.detail("varname: ", varname)
|
|
c.detail("assLines: ", assLines)
|
|
var base string
|
|
switch val.Kind() {
|
|
case reflect.Int:
|
|
c.importMap["strconv"] = "strconv"
|
|
base = "StringToBytes(strconv.Itoa(" + varname + "))"
|
|
case reflect.Bool:
|
|
// TODO: Take c.memberOnly into account
|
|
// TODO: Make this a template fragment so more optimisations can be applied to this
|
|
// TODO: De-duplicate this logic
|
|
userExprs, negUserExprs := buildUserExprs(con.RootHolder)
|
|
if c.guestOnly {
|
|
c.detail("optimising away member branch")
|
|
if inSlice(userExprs, varname) {
|
|
c.detail("positive conditional:", varname)
|
|
c.addText(con, []byte("false"))
|
|
return
|
|
} else if inSlice(negUserExprs, varname) {
|
|
c.detail("negative conditional:", varname)
|
|
c.addText(con, []byte("true"))
|
|
return
|
|
}
|
|
} else if c.memberOnly {
|
|
c.detail("optimising away guest branch")
|
|
if (con.RootHolder + ".CurrentUser.Loggedin") == varname {
|
|
c.detail("positive conditional:", varname)
|
|
c.addText(con, []byte("true"))
|
|
return
|
|
} else if ("!" + con.RootHolder + ".CurrentUser.Loggedin") == varname {
|
|
c.detail("negative conditional:", varname)
|
|
c.addText(con, []byte("false"))
|
|
return
|
|
}
|
|
}
|
|
con.Push("startif", "if "+varname+" {\n")
|
|
c.addText(con, []byte("true"))
|
|
con.Push("endif", "} ")
|
|
con.Push("startelse", "else {\n")
|
|
c.addText(con, []byte("false"))
|
|
con.Push("endelse", "}\n")
|
|
return
|
|
case reflect.Slice:
|
|
if val.Len() == 0 {
|
|
c.critical("varname:", varname)
|
|
panic("The sample data needs at-least one or more elements for the slices. We're looking into removing this requirement at some point!")
|
|
}
|
|
item := val.Index(0)
|
|
if item.Type().Name() != "uint8" { // uint8 == byte, complicated because it's a type alias
|
|
panic("unable to format " + item.Type().Name() + " as text")
|
|
}
|
|
base = varname
|
|
case reflect.String:
|
|
if val.Type().Name() != "string" && !strings.HasPrefix(varname, "string(") {
|
|
varname = "string(" + varname + ")"
|
|
}
|
|
base = "StringToBytes(" + varname + ")"
|
|
// We don't to waste time on this conversion / w.Write call when guests don't have sessions
|
|
// TODO: Implement this properly
|
|
if c.guestOnly && base == "StringToBytes("+con.RootHolder+".CurrentUser.Session))" {
|
|
return
|
|
}
|
|
case reflect.Int64:
|
|
c.importMap["strconv"] = "strconv"
|
|
base = "StringToBytes(strconv.FormatInt(" + varname + ", 10))"
|
|
case reflect.Struct:
|
|
// TODO: Avoid clashing with other packages which have structs named Time
|
|
if val.Type().Name() == "Time" {
|
|
base = "StringToBytes(" + varname + ".String())"
|
|
} else {
|
|
if !val.IsValid() {
|
|
panic(assLines + varname + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
c.logger.Println("Unknown Struct Name:", varname)
|
|
c.logger.Println("Unknown Struct:", val.Type().Name())
|
|
panic("-- I don't know what this variable's type is o.o\n")
|
|
}
|
|
default:
|
|
if !val.IsValid() {
|
|
panic(assLines + varname + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
c.logger.Println("Unknown Variable Name:", varname)
|
|
c.logger.Println("Unknown Kind:", val.Kind())
|
|
c.logger.Println("Unknown Type:", val.Type().Name())
|
|
panic("-- I don't know what this variable's type is o.o\n")
|
|
}
|
|
c.detail("base: ", base)
|
|
if assLines == "" {
|
|
con.Push("varsub", base)
|
|
} else {
|
|
con.Push("lvarsub", onEnd(assLines+base))
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) compileSubTemplate(pcon CContext, node *parse.TemplateNode) {
|
|
c.dumpCall("compileSubTemplate", pcon, node)
|
|
defer c.retCall("compileSubTemplate")
|
|
c.detail("Template Node: ", node.Name)
|
|
|
|
// TODO: Cascade errors back up the tree to the caller?
|
|
content, err := c.loadTemplate(c.fileDir, node.Name)
|
|
if err != nil {
|
|
c.logger.Fatal(err)
|
|
}
|
|
|
|
tree := parse.New(node.Name, c.funcMap)
|
|
var treeSet = make(map[string]*parse.Tree)
|
|
tree, err = tree.Parse(content, "{{", "}}", treeSet, c.funcMap)
|
|
if err != nil {
|
|
c.logger.Fatal(err)
|
|
}
|
|
|
|
fname := strings.TrimSuffix(node.Name, filepath.Ext(node.Name))
|
|
if c.themeName != "" {
|
|
_, ok := c.perThemeTmpls[fname]
|
|
if !ok {
|
|
c.detail("fname not in c.perThemeTmpls")
|
|
c.detail("c.perThemeTmpls", c.perThemeTmpls)
|
|
}
|
|
fname += "_" + c.themeName
|
|
}
|
|
if c.guestOnly {
|
|
fname += "_guest"
|
|
} else if c.memberOnly {
|
|
fname += "_member"
|
|
}
|
|
|
|
con := pcon
|
|
con.VarHolder = "tmpl_" + fname + "_vars"
|
|
con.TemplateName = fname
|
|
if node.Pipe != nil {
|
|
for _, cmd := range node.Pipe.Cmds {
|
|
switch p := cmd.Args[0].(type) {
|
|
case *parse.FieldNode:
|
|
// TODO: Incomplete but it should cover the basics
|
|
cur := pcon.HoldReflect
|
|
|
|
var varBit string
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
varBit += ".(" + cur.Type().Name() + ")"
|
|
}
|
|
|
|
for _, id := range p.Ident {
|
|
c.detail("Data Kind:", cur.Kind().String())
|
|
c.detail("Field Bit:", id)
|
|
cur = c.skipStructPointers(cur, id)
|
|
c.checkIfValid(cur, pcon.VarHolder, pcon.HoldReflect, varBit, false)
|
|
|
|
if cur.Kind() != reflect.Interface {
|
|
cur = cur.FieldByName(id)
|
|
varBit += "." + id
|
|
}
|
|
|
|
// TODO: Handle deeply nested pointers mixed with interfaces mixed with pointers better
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
varBit += ".("
|
|
// TODO: Surely, there's a better way of doing this?
|
|
if cur.Type().PkgPath() != "main" && cur.Type().PkgPath() != "" {
|
|
c.importMap["html/template"] = "html/template"
|
|
varBit += strings.TrimPrefix(cur.Type().PkgPath(), "html/") + "."
|
|
}
|
|
varBit += cur.Type().Name() + ")"
|
|
}
|
|
}
|
|
con.VarHolder = pcon.VarHolder + varBit
|
|
con.HoldReflect = cur
|
|
case *parse.DotNode:
|
|
con.VarHolder = pcon.VarHolder
|
|
con.HoldReflect = pcon.HoldReflect
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
default:
|
|
c.critical("Unknown Param Type:", p)
|
|
pvar := reflect.ValueOf(p)
|
|
c.critical("param kind:", pvar.Kind().String())
|
|
c.critical("param type:", pvar.Type().Name())
|
|
if pvar.Kind() == reflect.Ptr {
|
|
c.critical("Looping over pointer")
|
|
for pvar.Kind() == reflect.Ptr {
|
|
pvar = pvar.Elem()
|
|
}
|
|
c.critical("concrete kind:", pvar.Kind().String())
|
|
c.critical("concrete type:", pvar.Type().Name())
|
|
}
|
|
panic("")
|
|
}
|
|
}
|
|
}
|
|
|
|
c.templateList[fname] = tree
|
|
subtree := c.templateList[fname]
|
|
c.detail("subtree.Root", subtree.Root)
|
|
c.localVars[fname] = make(map[string]VarItemReflect)
|
|
c.localVars[fname]["."] = VarItemReflect{".", con.VarHolder, con.HoldReflect}
|
|
c.fragmentCursor[fname] = 0
|
|
|
|
var startBit, endBit string
|
|
if con.LoopDepth != 0 {
|
|
startBit = "{\n"
|
|
endBit = "}\n"
|
|
}
|
|
con.StartTemplate(startBit)
|
|
c.rootIterate(subtree, con)
|
|
con.EndTemplate(endBit)
|
|
//c.templateFragmentCount[fname] = c.fragmentCursor[fname] + 1
|
|
|
|
_, ok := c.fragOnce[fname]
|
|
if !ok {
|
|
c.fragOnce[fname] = true
|
|
}
|
|
|
|
// map[string]map[string]bool
|
|
c.detail("overridenTrack loop")
|
|
c.detail("fname:", fname)
|
|
for themeName, track := range c.overridenTrack {
|
|
c.detail("themeName:", themeName)
|
|
c.detailf("track: %+v\n", track)
|
|
croot, ok := c.overridenRoots[themeName]
|
|
if !ok {
|
|
croot = make(map[string]bool)
|
|
c.overridenRoots[themeName] = croot
|
|
}
|
|
c.detailf("croot: %+v\n", croot)
|
|
for tmplName, _ := range track {
|
|
cname := tmplName
|
|
if c.guestOnly {
|
|
cname += "_guest"
|
|
} else if c.memberOnly {
|
|
cname += "_member"
|
|
}
|
|
c.detail("cname:", cname)
|
|
if fname == cname {
|
|
c.detail("match")
|
|
croot[strings.TrimSuffix(strings.TrimSuffix(con.RootTemplateName, "_guest"), "_member")] = true
|
|
} else {
|
|
c.detail("no match")
|
|
}
|
|
}
|
|
}
|
|
c.detailf("c.overridenRoots: %+v\n", c.overridenRoots)
|
|
}
|
|
|
|
func (c *CTemplateSet) loadTemplate(fileDir string, name string) (content string, err error) {
|
|
c.dumpCall("loadTemplate", fileDir, name)
|
|
|
|
c.detail("c.themeName: ", c.themeName)
|
|
if c.themeName != "" {
|
|
c.detail("per-theme override: ", "./themes/"+c.themeName+"/overrides/"+name)
|
|
res, err := ioutil.ReadFile("./themes/" + c.themeName + "/overrides/" + name)
|
|
if err == nil {
|
|
content = string(res)
|
|
if c.config.Minify {
|
|
content = Minify(content)
|
|
}
|
|
return content, nil
|
|
}
|
|
c.detail("override err: ", err)
|
|
}
|
|
|
|
res, err := ioutil.ReadFile(c.fileDir + "overrides/" + name)
|
|
if err != nil {
|
|
c.detail("override path: ", c.fileDir+"overrides/"+name)
|
|
c.detail("override err: ", err)
|
|
res, err = ioutil.ReadFile(c.fileDir + name)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
}
|
|
content = string(res)
|
|
if c.config.Minify {
|
|
content = Minify(content)
|
|
}
|
|
return content, nil
|
|
}
|
|
|
|
func (c *CTemplateSet) afterTemplate(con CContext, startIndex int) {
|
|
c.dumpCall("afterTemplate", con, startIndex)
|
|
defer c.retCall("afterTemplate")
|
|
|
|
var loopDepth = 0
|
|
var outBuf = *con.OutBuf
|
|
var varcounts = make(map[string]int)
|
|
var loopStart = startIndex
|
|
|
|
if outBuf[startIndex].Type == "startloop" && (len(outBuf) > startIndex+1) {
|
|
loopStart++
|
|
}
|
|
|
|
// Exclude varsubs within loops for now
|
|
for i := loopStart; i < len(outBuf); i++ {
|
|
item := outBuf[i]
|
|
c.detail("item:", item)
|
|
if item.Type == "startloop" {
|
|
loopDepth++
|
|
c.detail("loopDepth:", loopDepth)
|
|
} else if item.Type == "endloop" {
|
|
loopDepth--
|
|
c.detail("loopDepth:", loopDepth)
|
|
if loopDepth == -1 {
|
|
break
|
|
}
|
|
} else if item.Type == "varsub" && loopDepth == 0 {
|
|
count := varcounts[item.Body]
|
|
varcounts[item.Body] = count + 1
|
|
c.detail("count " + strconv.Itoa(count) + " for " + item.Body)
|
|
c.detail("loopDepth:", loopDepth)
|
|
}
|
|
}
|
|
|
|
var varstr string
|
|
var i int
|
|
var varmap = make(map[string]int)
|
|
for name, count := range varcounts {
|
|
if count > 1 {
|
|
varstr += "var cached_var_" + strconv.Itoa(i) + " = " + name + "\n"
|
|
varmap[name] = i
|
|
i++
|
|
}
|
|
}
|
|
|
|
// Exclude varsubs within loops for now
|
|
loopDepth = 0
|
|
for i := loopStart; i < len(outBuf); i++ {
|
|
item := outBuf[i]
|
|
if item.Type == "startloop" {
|
|
loopDepth++
|
|
} else if item.Type == "endloop" {
|
|
loopDepth--
|
|
if loopDepth == -1 {
|
|
break
|
|
}
|
|
} else if item.Type == "varsub" && loopDepth == 0 {
|
|
index, ok := varmap[item.Body]
|
|
if ok {
|
|
item.Body = "cached_var_" + strconv.Itoa(index)
|
|
item.Type = "cvarsub"
|
|
outBuf[i] = item
|
|
}
|
|
}
|
|
}
|
|
|
|
con.AttachVars(varstr, startIndex)
|
|
}
|
|
|
|
// TODO: Should we rethink the way the log methods work or their names?
|
|
|
|
func (c *CTemplateSet) detail(args ...interface{}) {
|
|
if c.config.SuperDebug {
|
|
c.logger.Println(args...)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) detailf(left string, args ...interface{}) {
|
|
if c.config.SuperDebug {
|
|
c.logger.Printf(left, args...)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) error(args ...interface{}) {
|
|
if c.config.Debug {
|
|
c.logger.Println(args...)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) critical(args ...interface{}) {
|
|
c.logger.Println(args...)
|
|
}
|