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5492 lines
212 KiB
5492 lines
212 KiB
/** |
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* Make a map and return a function for checking if a key |
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* is in that map. |
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* IMPORTANT: all calls of this function must be prefixed with |
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* \/\*#\_\_PURE\_\_\*\/ |
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* So that rollup can tree-shake them if necessary. |
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*/ |
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function makeMap(str, expectsLowerCase) { |
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const map = Object.create(null); |
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const list = str.split(','); |
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for (let i = 0; i < list.length; i++) { |
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map[list[i]] = true; |
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} |
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return expectsLowerCase ? val => !!map[val.toLowerCase()] : val => !!map[val]; |
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} |
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|
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/** |
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* dev only flag -> name mapping |
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*/ |
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const PatchFlagNames = { |
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[1 /* TEXT */]: `TEXT`, |
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[2 /* CLASS */]: `CLASS`, |
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[4 /* STYLE */]: `STYLE`, |
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[8 /* PROPS */]: `PROPS`, |
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[16 /* FULL_PROPS */]: `FULL_PROPS`, |
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[32 /* HYDRATE_EVENTS */]: `HYDRATE_EVENTS`, |
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[64 /* STABLE_FRAGMENT */]: `STABLE_FRAGMENT`, |
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[128 /* KEYED_FRAGMENT */]: `KEYED_FRAGMENT`, |
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[256 /* UNKEYED_FRAGMENT */]: `UNKEYED_FRAGMENT`, |
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[512 /* NEED_PATCH */]: `NEED_PATCH`, |
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[1024 /* DYNAMIC_SLOTS */]: `DYNAMIC_SLOTS`, |
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[2048 /* DEV_ROOT_FRAGMENT */]: `DEV_ROOT_FRAGMENT`, |
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[-1 /* HOISTED */]: `HOISTED`, |
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[-2 /* BAIL */]: `BAIL` |
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}; |
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|
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/** |
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* Dev only |
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*/ |
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const slotFlagsText = { |
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[1 /* STABLE */]: 'STABLE', |
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[2 /* DYNAMIC */]: 'DYNAMIC', |
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[3 /* FORWARDED */]: 'FORWARDED' |
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}; |
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|
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const range = 2; |
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function generateCodeFrame(source, start = 0, end = source.length) { |
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// Split the content into individual lines but capture the newline sequence |
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// that separated each line. This is important because the actual sequence is |
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// needed to properly take into account the full line length for offset |
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// comparison |
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let lines = source.split(/(\r?\n)/); |
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// Separate the lines and newline sequences into separate arrays for easier referencing |
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const newlineSequences = lines.filter((_, idx) => idx % 2 === 1); |
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lines = lines.filter((_, idx) => idx % 2 === 0); |
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let count = 0; |
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const res = []; |
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for (let i = 0; i < lines.length; i++) { |
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count += |
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lines[i].length + |
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((newlineSequences[i] && newlineSequences[i].length) || 0); |
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if (count >= start) { |
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for (let j = i - range; j <= i + range || end > count; j++) { |
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if (j < 0 || j >= lines.length) |
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continue; |
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const line = j + 1; |
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res.push(`${line}${' '.repeat(Math.max(3 - String(line).length, 0))}| ${lines[j]}`); |
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const lineLength = lines[j].length; |
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const newLineSeqLength = (newlineSequences[j] && newlineSequences[j].length) || 0; |
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if (j === i) { |
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// push underline |
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const pad = start - (count - (lineLength + newLineSeqLength)); |
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const length = Math.max(1, end > count ? lineLength - pad : end - start); |
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res.push(` | ` + ' '.repeat(pad) + '^'.repeat(length)); |
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} |
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else if (j > i) { |
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if (end > count) { |
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const length = Math.max(Math.min(end - count, lineLength), 1); |
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res.push(` | ` + '^'.repeat(length)); |
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} |
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count += lineLength + newLineSeqLength; |
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} |
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} |
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break; |
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} |
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} |
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return res.join('\n'); |
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} |
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|
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const listDelimiterRE = /;(?![^(]*\))/g; |
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const propertyDelimiterRE = /:(.+)/; |
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function parseStringStyle(cssText) { |
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const ret = {}; |
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cssText.split(listDelimiterRE).forEach(item => { |
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if (item) { |
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const tmp = item.split(propertyDelimiterRE); |
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tmp.length > 1 && (ret[tmp[0].trim()] = tmp[1].trim()); |
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} |
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}); |
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return ret; |
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} |
|
|
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// These tag configs are shared between compiler-dom and runtime-dom, so they |
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// https://developer.mozilla.org/en-US/docs/Web/HTML/Element |
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const HTML_TAGS = 'html,body,base,head,link,meta,style,title,address,article,aside,footer,' + |
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'header,h1,h2,h3,h4,h5,h6,nav,section,div,dd,dl,dt,figcaption,' + |
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'figure,picture,hr,img,li,main,ol,p,pre,ul,a,b,abbr,bdi,bdo,br,cite,code,' + |
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'data,dfn,em,i,kbd,mark,q,rp,rt,ruby,s,samp,small,span,strong,sub,sup,' + |
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'time,u,var,wbr,area,audio,map,track,video,embed,object,param,source,' + |
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'canvas,script,noscript,del,ins,caption,col,colgroup,table,thead,tbody,td,' + |
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'th,tr,button,datalist,fieldset,form,input,label,legend,meter,optgroup,' + |
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'option,output,progress,select,textarea,details,dialog,menu,' + |
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'summary,template,blockquote,iframe,tfoot'; |
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// https://developer.mozilla.org/en-US/docs/Web/SVG/Element |
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const SVG_TAGS = 'svg,animate,animateMotion,animateTransform,circle,clipPath,color-profile,' + |
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'defs,desc,discard,ellipse,feBlend,feColorMatrix,feComponentTransfer,' + |
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'feComposite,feConvolveMatrix,feDiffuseLighting,feDisplacementMap,' + |
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'feDistanceLight,feDropShadow,feFlood,feFuncA,feFuncB,feFuncG,feFuncR,' + |
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'feGaussianBlur,feImage,feMerge,feMergeNode,feMorphology,feOffset,' + |
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'fePointLight,feSpecularLighting,feSpotLight,feTile,feTurbulence,filter,' + |
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'foreignObject,g,hatch,hatchpath,image,line,linearGradient,marker,mask,' + |
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'mesh,meshgradient,meshpatch,meshrow,metadata,mpath,path,pattern,' + |
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'polygon,polyline,radialGradient,rect,set,solidcolor,stop,switch,symbol,' + |
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'text,textPath,title,tspan,unknown,use,view'; |
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const VOID_TAGS = 'area,base,br,col,embed,hr,img,input,link,meta,param,source,track,wbr'; |
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/** |
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* Compiler only. |
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* Do NOT use in runtime code paths unless behind `true` flag. |
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*/ |
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const isHTMLTag = /*#__PURE__*/ makeMap(HTML_TAGS); |
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/** |
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* Compiler only. |
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* Do NOT use in runtime code paths unless behind `true` flag. |
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*/ |
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const isSVGTag = /*#__PURE__*/ makeMap(SVG_TAGS); |
|
/** |
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* Compiler only. |
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* Do NOT use in runtime code paths unless behind `true` flag. |
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*/ |
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const isVoidTag = /*#__PURE__*/ makeMap(VOID_TAGS); |
|
|
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const EMPTY_OBJ = Object.freeze({}) |
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; |
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Object.freeze([]) ; |
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const NOOP = () => { }; |
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/** |
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* Always return false. |
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*/ |
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const NO = () => false; |
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const onRE = /^on[^a-z]/; |
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const isOn = (key) => onRE.test(key); |
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const extend = Object.assign; |
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const isArray = Array.isArray; |
|
const isString = (val) => typeof val === 'string'; |
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const isSymbol = (val) => typeof val === 'symbol'; |
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const isObject = (val) => val !== null && typeof val === 'object'; |
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const isReservedProp = /*#__PURE__*/ makeMap( |
|
// the leading comma is intentional so empty string "" is also included |
|
',key,ref,ref_for,ref_key,' + |
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'onVnodeBeforeMount,onVnodeMounted,' + |
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'onVnodeBeforeUpdate,onVnodeUpdated,' + |
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'onVnodeBeforeUnmount,onVnodeUnmounted'); |
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const isBuiltInDirective = /*#__PURE__*/ makeMap('bind,cloak,else-if,else,for,html,if,model,on,once,pre,show,slot,text,memo'); |
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const cacheStringFunction = (fn) => { |
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const cache = Object.create(null); |
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return ((str) => { |
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const hit = cache[str]; |
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return hit || (cache[str] = fn(str)); |
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}); |
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}; |
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const camelizeRE = /-(\w)/g; |
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/** |
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* @private |
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*/ |
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const camelize = cacheStringFunction((str) => { |
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return str.replace(camelizeRE, (_, c) => (c ? c.toUpperCase() : '')); |
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}); |
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const hyphenateRE = /\B([A-Z])/g; |
|
/** |
|
* @private |
|
*/ |
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const hyphenate = cacheStringFunction((str) => str.replace(hyphenateRE, '-$1').toLowerCase()); |
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/** |
|
* @private |
|
*/ |
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const capitalize = cacheStringFunction((str) => str.charAt(0).toUpperCase() + str.slice(1)); |
|
/** |
|
* @private |
|
*/ |
|
const toHandlerKey = cacheStringFunction((str) => str ? `on${capitalize(str)}` : ``); |
|
|
|
function defaultOnError(error) { |
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throw error; |
|
} |
|
function defaultOnWarn(msg) { |
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console.warn(`[Vue warn] ${msg.message}`); |
|
} |
|
function createCompilerError(code, loc, messages, additionalMessage) { |
|
const msg = (messages || errorMessages)[code] + (additionalMessage || ``) |
|
; |
|
const error = new SyntaxError(String(msg)); |
|
error.code = code; |
|
error.loc = loc; |
|
return error; |
|
} |
|
const errorMessages = { |
|
// parse errors |
|
[0 /* ABRUPT_CLOSING_OF_EMPTY_COMMENT */]: 'Illegal comment.', |
|
[1 /* CDATA_IN_HTML_CONTENT */]: 'CDATA section is allowed only in XML context.', |
|
[2 /* DUPLICATE_ATTRIBUTE */]: 'Duplicate attribute.', |
|
[3 /* END_TAG_WITH_ATTRIBUTES */]: 'End tag cannot have attributes.', |
|
[4 /* END_TAG_WITH_TRAILING_SOLIDUS */]: "Illegal '/' in tags.", |
|
[5 /* EOF_BEFORE_TAG_NAME */]: 'Unexpected EOF in tag.', |
|
[6 /* EOF_IN_CDATA */]: 'Unexpected EOF in CDATA section.', |
|
[7 /* EOF_IN_COMMENT */]: 'Unexpected EOF in comment.', |
|
[8 /* EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT */]: 'Unexpected EOF in script.', |
|
[9 /* EOF_IN_TAG */]: 'Unexpected EOF in tag.', |
|
[10 /* INCORRECTLY_CLOSED_COMMENT */]: 'Incorrectly closed comment.', |
|
[11 /* INCORRECTLY_OPENED_COMMENT */]: 'Incorrectly opened comment.', |
|
[12 /* INVALID_FIRST_CHARACTER_OF_TAG_NAME */]: "Illegal tag name. Use '<' to print '<'.", |
|
[13 /* MISSING_ATTRIBUTE_VALUE */]: 'Attribute value was expected.', |
|
[14 /* MISSING_END_TAG_NAME */]: 'End tag name was expected.', |
|
[15 /* MISSING_WHITESPACE_BETWEEN_ATTRIBUTES */]: 'Whitespace was expected.', |
|
[16 /* NESTED_COMMENT */]: "Unexpected '<!--' in comment.", |
|
[17 /* UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME */]: 'Attribute name cannot contain U+0022 ("), U+0027 (\'), and U+003C (<).', |
|
[18 /* UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE */]: 'Unquoted attribute value cannot contain U+0022 ("), U+0027 (\'), U+003C (<), U+003D (=), and U+0060 (`).', |
|
[19 /* UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME */]: "Attribute name cannot start with '='.", |
|
[21 /* UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME */]: "'<?' is allowed only in XML context.", |
|
[20 /* UNEXPECTED_NULL_CHARACTER */]: `Unexpected null character.`, |
|
[22 /* UNEXPECTED_SOLIDUS_IN_TAG */]: "Illegal '/' in tags.", |
|
// Vue-specific parse errors |
|
[23 /* X_INVALID_END_TAG */]: 'Invalid end tag.', |
|
[24 /* X_MISSING_END_TAG */]: 'Element is missing end tag.', |
|
[25 /* X_MISSING_INTERPOLATION_END */]: 'Interpolation end sign was not found.', |
|
[27 /* X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END */]: 'End bracket for dynamic directive argument was not found. ' + |
|
'Note that dynamic directive argument cannot contain spaces.', |
|
[26 /* X_MISSING_DIRECTIVE_NAME */]: 'Legal directive name was expected.', |
|
// transform errors |
|
[28 /* X_V_IF_NO_EXPRESSION */]: `v-if/v-else-if is missing expression.`, |
|
[29 /* X_V_IF_SAME_KEY */]: `v-if/else branches must use unique keys.`, |
|
[30 /* X_V_ELSE_NO_ADJACENT_IF */]: `v-else/v-else-if has no adjacent v-if or v-else-if.`, |
|
[31 /* X_V_FOR_NO_EXPRESSION */]: `v-for is missing expression.`, |
|
[32 /* X_V_FOR_MALFORMED_EXPRESSION */]: `v-for has invalid expression.`, |
|
[33 /* X_V_FOR_TEMPLATE_KEY_PLACEMENT */]: `<template v-for> key should be placed on the <template> tag.`, |
|
[34 /* X_V_BIND_NO_EXPRESSION */]: `v-bind is missing expression.`, |
|
[35 /* X_V_ON_NO_EXPRESSION */]: `v-on is missing expression.`, |
|
[36 /* X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET */]: `Unexpected custom directive on <slot> outlet.`, |
|
[37 /* X_V_SLOT_MIXED_SLOT_USAGE */]: `Mixed v-slot usage on both the component and nested <template>.` + |
|
`When there are multiple named slots, all slots should use <template> ` + |
|
`syntax to avoid scope ambiguity.`, |
|
[38 /* X_V_SLOT_DUPLICATE_SLOT_NAMES */]: `Duplicate slot names found. `, |
|
[39 /* X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN */]: `Extraneous children found when component already has explicitly named ` + |
|
`default slot. These children will be ignored.`, |
|
[40 /* X_V_SLOT_MISPLACED */]: `v-slot can only be used on components or <template> tags.`, |
|
[41 /* X_V_MODEL_NO_EXPRESSION */]: `v-model is missing expression.`, |
|
[42 /* X_V_MODEL_MALFORMED_EXPRESSION */]: `v-model value must be a valid JavaScript member expression.`, |
|
[43 /* X_V_MODEL_ON_SCOPE_VARIABLE */]: `v-model cannot be used on v-for or v-slot scope variables because they are not writable.`, |
|
[44 /* X_INVALID_EXPRESSION */]: `Error parsing JavaScript expression: `, |
|
[45 /* X_KEEP_ALIVE_INVALID_CHILDREN */]: `<KeepAlive> expects exactly one child component.`, |
|
// generic errors |
|
[46 /* X_PREFIX_ID_NOT_SUPPORTED */]: `"prefixIdentifiers" option is not supported in this build of compiler.`, |
|
[47 /* X_MODULE_MODE_NOT_SUPPORTED */]: `ES module mode is not supported in this build of compiler.`, |
|
[48 /* X_CACHE_HANDLER_NOT_SUPPORTED */]: `"cacheHandlers" option is only supported when the "prefixIdentifiers" option is enabled.`, |
|
[49 /* X_SCOPE_ID_NOT_SUPPORTED */]: `"scopeId" option is only supported in module mode.`, |
|
// just to fulfill types |
|
[50 /* __EXTEND_POINT__ */]: `` |
|
}; |
|
|
|
const FRAGMENT = Symbol(`Fragment` ); |
|
const TELEPORT = Symbol(`Teleport` ); |
|
const SUSPENSE = Symbol(`Suspense` ); |
|
const KEEP_ALIVE = Symbol(`KeepAlive` ); |
|
const BASE_TRANSITION = Symbol(`BaseTransition` ); |
|
const OPEN_BLOCK = Symbol(`openBlock` ); |
|
const CREATE_BLOCK = Symbol(`createBlock` ); |
|
const CREATE_ELEMENT_BLOCK = Symbol(`createElementBlock` ); |
|
const CREATE_VNODE = Symbol(`createVNode` ); |
|
const CREATE_ELEMENT_VNODE = Symbol(`createElementVNode` ); |
|
const CREATE_COMMENT = Symbol(`createCommentVNode` ); |
|
const CREATE_TEXT = Symbol(`createTextVNode` ); |
|
const CREATE_STATIC = Symbol(`createStaticVNode` ); |
|
const RESOLVE_COMPONENT = Symbol(`resolveComponent` ); |
|
const RESOLVE_DYNAMIC_COMPONENT = Symbol(`resolveDynamicComponent` ); |
|
const RESOLVE_DIRECTIVE = Symbol(`resolveDirective` ); |
|
const RESOLVE_FILTER = Symbol(`resolveFilter` ); |
|
const WITH_DIRECTIVES = Symbol(`withDirectives` ); |
|
const RENDER_LIST = Symbol(`renderList` ); |
|
const RENDER_SLOT = Symbol(`renderSlot` ); |
|
const CREATE_SLOTS = Symbol(`createSlots` ); |
|
const TO_DISPLAY_STRING = Symbol(`toDisplayString` ); |
|
const MERGE_PROPS = Symbol(`mergeProps` ); |
|
const NORMALIZE_CLASS = Symbol(`normalizeClass` ); |
|
const NORMALIZE_STYLE = Symbol(`normalizeStyle` ); |
|
const NORMALIZE_PROPS = Symbol(`normalizeProps` ); |
|
const GUARD_REACTIVE_PROPS = Symbol(`guardReactiveProps` ); |
|
const TO_HANDLERS = Symbol(`toHandlers` ); |
|
const CAMELIZE = Symbol(`camelize` ); |
|
const CAPITALIZE = Symbol(`capitalize` ); |
|
const TO_HANDLER_KEY = Symbol(`toHandlerKey` ); |
|
const SET_BLOCK_TRACKING = Symbol(`setBlockTracking` ); |
|
const PUSH_SCOPE_ID = Symbol(`pushScopeId` ); |
|
const POP_SCOPE_ID = Symbol(`popScopeId` ); |
|
const WITH_CTX = Symbol(`withCtx` ); |
|
const UNREF = Symbol(`unref` ); |
|
const IS_REF = Symbol(`isRef` ); |
|
const WITH_MEMO = Symbol(`withMemo` ); |
|
const IS_MEMO_SAME = Symbol(`isMemoSame` ); |
|
// Name mapping for runtime helpers that need to be imported from 'vue' in |
|
// generated code. Make sure these are correctly exported in the runtime! |
|
// Using `any` here because TS doesn't allow symbols as index type. |
|
const helperNameMap = { |
|
[FRAGMENT]: `Fragment`, |
|
[TELEPORT]: `Teleport`, |
|
[SUSPENSE]: `Suspense`, |
|
[KEEP_ALIVE]: `KeepAlive`, |
|
[BASE_TRANSITION]: `BaseTransition`, |
|
[OPEN_BLOCK]: `openBlock`, |
|
[CREATE_BLOCK]: `createBlock`, |
|
[CREATE_ELEMENT_BLOCK]: `createElementBlock`, |
|
[CREATE_VNODE]: `createVNode`, |
|
[CREATE_ELEMENT_VNODE]: `createElementVNode`, |
|
[CREATE_COMMENT]: `createCommentVNode`, |
|
[CREATE_TEXT]: `createTextVNode`, |
|
[CREATE_STATIC]: `createStaticVNode`, |
|
[RESOLVE_COMPONENT]: `resolveComponent`, |
|
[RESOLVE_DYNAMIC_COMPONENT]: `resolveDynamicComponent`, |
|
[RESOLVE_DIRECTIVE]: `resolveDirective`, |
|
[RESOLVE_FILTER]: `resolveFilter`, |
|
[WITH_DIRECTIVES]: `withDirectives`, |
|
[RENDER_LIST]: `renderList`, |
|
[RENDER_SLOT]: `renderSlot`, |
|
[CREATE_SLOTS]: `createSlots`, |
|
[TO_DISPLAY_STRING]: `toDisplayString`, |
|
[MERGE_PROPS]: `mergeProps`, |
|
[NORMALIZE_CLASS]: `normalizeClass`, |
|
[NORMALIZE_STYLE]: `normalizeStyle`, |
|
[NORMALIZE_PROPS]: `normalizeProps`, |
|
[GUARD_REACTIVE_PROPS]: `guardReactiveProps`, |
|
[TO_HANDLERS]: `toHandlers`, |
|
[CAMELIZE]: `camelize`, |
|
[CAPITALIZE]: `capitalize`, |
|
[TO_HANDLER_KEY]: `toHandlerKey`, |
|
[SET_BLOCK_TRACKING]: `setBlockTracking`, |
|
[PUSH_SCOPE_ID]: `pushScopeId`, |
|
[POP_SCOPE_ID]: `popScopeId`, |
|
[WITH_CTX]: `withCtx`, |
|
[UNREF]: `unref`, |
|
[IS_REF]: `isRef`, |
|
[WITH_MEMO]: `withMemo`, |
|
[IS_MEMO_SAME]: `isMemoSame` |
|
}; |
|
function registerRuntimeHelpers(helpers) { |
|
Object.getOwnPropertySymbols(helpers).forEach(s => { |
|
helperNameMap[s] = helpers[s]; |
|
}); |
|
} |
|
|
|
// AST Utilities --------------------------------------------------------------- |
|
// Some expressions, e.g. sequence and conditional expressions, are never |
|
// associated with template nodes, so their source locations are just a stub. |
|
// Container types like CompoundExpression also don't need a real location. |
|
const locStub = { |
|
source: '', |
|
start: { line: 1, column: 1, offset: 0 }, |
|
end: { line: 1, column: 1, offset: 0 } |
|
}; |
|
function createRoot(children, loc = locStub) { |
|
return { |
|
type: 0 /* ROOT */, |
|
children, |
|
helpers: [], |
|
components: [], |
|
directives: [], |
|
hoists: [], |
|
imports: [], |
|
cached: 0, |
|
temps: 0, |
|
codegenNode: undefined, |
|
loc |
|
}; |
|
} |
|
function createVNodeCall(context, tag, props, children, patchFlag, dynamicProps, directives, isBlock = false, disableTracking = false, isComponent = false, loc = locStub) { |
|
if (context) { |
|
if (isBlock) { |
|
context.helper(OPEN_BLOCK); |
|
context.helper(getVNodeBlockHelper(context.inSSR, isComponent)); |
|
} |
|
else { |
|
context.helper(getVNodeHelper(context.inSSR, isComponent)); |
|
} |
|
if (directives) { |
|
context.helper(WITH_DIRECTIVES); |
|
} |
|
} |
|
return { |
|
type: 13 /* VNODE_CALL */, |
|
tag, |
|
props, |
|
children, |
|
patchFlag, |
|
dynamicProps, |
|
directives, |
|
isBlock, |
|
disableTracking, |
|
isComponent, |
|
loc |
|
}; |
|
} |
|
function createArrayExpression(elements, loc = locStub) { |
|
return { |
|
type: 17 /* JS_ARRAY_EXPRESSION */, |
|
loc, |
|
elements |
|
}; |
|
} |
|
function createObjectExpression(properties, loc = locStub) { |
|
return { |
|
type: 15 /* JS_OBJECT_EXPRESSION */, |
|
loc, |
|
properties |
|
}; |
|
} |
|
function createObjectProperty(key, value) { |
|
return { |
|
type: 16 /* JS_PROPERTY */, |
|
loc: locStub, |
|
key: isString(key) ? createSimpleExpression(key, true) : key, |
|
value |
|
}; |
|
} |
|
function createSimpleExpression(content, isStatic = false, loc = locStub, constType = 0 /* NOT_CONSTANT */) { |
|
return { |
|
type: 4 /* SIMPLE_EXPRESSION */, |
|
loc, |
|
content, |
|
isStatic, |
|
constType: isStatic ? 3 /* CAN_STRINGIFY */ : constType |
|
}; |
|
} |
|
function createInterpolation(content, loc) { |
|
return { |
|
type: 5 /* INTERPOLATION */, |
|
loc, |
|
content: isString(content) |
|
? createSimpleExpression(content, false, loc) |
|
: content |
|
}; |
|
} |
|
function createCompoundExpression(children, loc = locStub) { |
|
return { |
|
type: 8 /* COMPOUND_EXPRESSION */, |
|
loc, |
|
children |
|
}; |
|
} |
|
function createCallExpression(callee, args = [], loc = locStub) { |
|
return { |
|
type: 14 /* JS_CALL_EXPRESSION */, |
|
loc, |
|
callee, |
|
arguments: args |
|
}; |
|
} |
|
function createFunctionExpression(params, returns = undefined, newline = false, isSlot = false, loc = locStub) { |
|
return { |
|
type: 18 /* JS_FUNCTION_EXPRESSION */, |
|
params, |
|
returns, |
|
newline, |
|
isSlot, |
|
loc |
|
}; |
|
} |
|
function createConditionalExpression(test, consequent, alternate, newline = true) { |
|
return { |
|
type: 19 /* JS_CONDITIONAL_EXPRESSION */, |
|
test, |
|
consequent, |
|
alternate, |
|
newline, |
|
loc: locStub |
|
}; |
|
} |
|
function createCacheExpression(index, value, isVNode = false) { |
|
return { |
|
type: 20 /* JS_CACHE_EXPRESSION */, |
|
index, |
|
value, |
|
isVNode, |
|
loc: locStub |
|
}; |
|
} |
|
function createBlockStatement(body) { |
|
return { |
|
type: 21 /* JS_BLOCK_STATEMENT */, |
|
body, |
|
loc: locStub |
|
}; |
|
} |
|
function createTemplateLiteral(elements) { |
|
return { |
|
type: 22 /* JS_TEMPLATE_LITERAL */, |
|
elements, |
|
loc: locStub |
|
}; |
|
} |
|
function createIfStatement(test, consequent, alternate) { |
|
return { |
|
type: 23 /* JS_IF_STATEMENT */, |
|
test, |
|
consequent, |
|
alternate, |
|
loc: locStub |
|
}; |
|
} |
|
function createAssignmentExpression(left, right) { |
|
return { |
|
type: 24 /* JS_ASSIGNMENT_EXPRESSION */, |
|
left, |
|
right, |
|
loc: locStub |
|
}; |
|
} |
|
function createSequenceExpression(expressions) { |
|
return { |
|
type: 25 /* JS_SEQUENCE_EXPRESSION */, |
|
expressions, |
|
loc: locStub |
|
}; |
|
} |
|
function createReturnStatement(returns) { |
|
return { |
|
type: 26 /* JS_RETURN_STATEMENT */, |
|
returns, |
|
loc: locStub |
|
}; |
|
} |
|
|
|
const isStaticExp = (p) => p.type === 4 /* SIMPLE_EXPRESSION */ && p.isStatic; |
|
const isBuiltInType = (tag, expected) => tag === expected || tag === hyphenate(expected); |
|
function isCoreComponent(tag) { |
|
if (isBuiltInType(tag, 'Teleport')) { |
|
return TELEPORT; |
|
} |
|
else if (isBuiltInType(tag, 'Suspense')) { |
|
return SUSPENSE; |
|
} |
|
else if (isBuiltInType(tag, 'KeepAlive')) { |
|
return KEEP_ALIVE; |
|
} |
|
else if (isBuiltInType(tag, 'BaseTransition')) { |
|
return BASE_TRANSITION; |
|
} |
|
} |
|
const nonIdentifierRE = /^\d|[^\$\w]/; |
|
const isSimpleIdentifier = (name) => !nonIdentifierRE.test(name); |
|
const validFirstIdentCharRE = /[A-Za-z_$\xA0-\uFFFF]/; |
|
const validIdentCharRE = /[\.\?\w$\xA0-\uFFFF]/; |
|
const whitespaceRE = /\s+[.[]\s*|\s*[.[]\s+/g; |
|
/** |
|
* Simple lexer to check if an expression is a member expression. This is |
|
* lax and only checks validity at the root level (i.e. does not validate exps |
|
* inside square brackets), but it's ok since these are only used on template |
|
* expressions and false positives are invalid expressions in the first place. |
|
*/ |
|
const isMemberExpressionBrowser = (path) => { |
|
// remove whitespaces around . or [ first |
|
path = path.trim().replace(whitespaceRE, s => s.trim()); |
|
let state = 0 /* inMemberExp */; |
|
let stateStack = []; |
|
let currentOpenBracketCount = 0; |
|
let currentOpenParensCount = 0; |
|
let currentStringType = null; |
|
for (let i = 0; i < path.length; i++) { |
|
const char = path.charAt(i); |
|
switch (state) { |
|
case 0 /* inMemberExp */: |
|
if (char === '[') { |
|
stateStack.push(state); |
|
state = 1 /* inBrackets */; |
|
currentOpenBracketCount++; |
|
} |
|
else if (char === '(') { |
|
stateStack.push(state); |
|
state = 2 /* inParens */; |
|
currentOpenParensCount++; |
|
} |
|
else if (!(i === 0 ? validFirstIdentCharRE : validIdentCharRE).test(char)) { |
|
return false; |
|
} |
|
break; |
|
case 1 /* inBrackets */: |
|
if (char === `'` || char === `"` || char === '`') { |
|
stateStack.push(state); |
|
state = 3 /* inString */; |
|
currentStringType = char; |
|
} |
|
else if (char === `[`) { |
|
currentOpenBracketCount++; |
|
} |
|
else if (char === `]`) { |
|
if (!--currentOpenBracketCount) { |
|
state = stateStack.pop(); |
|
} |
|
} |
|
break; |
|
case 2 /* inParens */: |
|
if (char === `'` || char === `"` || char === '`') { |
|
stateStack.push(state); |
|
state = 3 /* inString */; |
|
currentStringType = char; |
|
} |
|
else if (char === `(`) { |
|
currentOpenParensCount++; |
|
} |
|
else if (char === `)`) { |
|
// if the exp ends as a call then it should not be considered valid |
|
if (i === path.length - 1) { |
|
return false; |
|
} |
|
if (!--currentOpenParensCount) { |
|
state = stateStack.pop(); |
|
} |
|
} |
|
break; |
|
case 3 /* inString */: |
|
if (char === currentStringType) { |
|
state = stateStack.pop(); |
|
currentStringType = null; |
|
} |
|
break; |
|
} |
|
} |
|
return !currentOpenBracketCount && !currentOpenParensCount; |
|
}; |
|
const isMemberExpressionNode = NOOP |
|
; |
|
const isMemberExpression = isMemberExpressionBrowser |
|
; |
|
function getInnerRange(loc, offset, length) { |
|
const source = loc.source.slice(offset, offset + length); |
|
const newLoc = { |
|
source, |
|
start: advancePositionWithClone(loc.start, loc.source, offset), |
|
end: loc.end |
|
}; |
|
if (length != null) { |
|
newLoc.end = advancePositionWithClone(loc.start, loc.source, offset + length); |
|
} |
|
return newLoc; |
|
} |
|
function advancePositionWithClone(pos, source, numberOfCharacters = source.length) { |
|
return advancePositionWithMutation(extend({}, pos), source, numberOfCharacters); |
|
} |
|
// advance by mutation without cloning (for performance reasons), since this |
|
// gets called a lot in the parser |
|
function advancePositionWithMutation(pos, source, numberOfCharacters = source.length) { |
|
let linesCount = 0; |
|
let lastNewLinePos = -1; |
|
for (let i = 0; i < numberOfCharacters; i++) { |
|
if (source.charCodeAt(i) === 10 /* newline char code */) { |
|
linesCount++; |
|
lastNewLinePos = i; |
|
} |
|
} |
|
pos.offset += numberOfCharacters; |
|
pos.line += linesCount; |
|
pos.column = |
|
lastNewLinePos === -1 |
|
? pos.column + numberOfCharacters |
|
: numberOfCharacters - lastNewLinePos; |
|
return pos; |
|
} |
|
function assert(condition, msg) { |
|
/* istanbul ignore if */ |
|
if (!condition) { |
|
throw new Error(msg || `unexpected compiler condition`); |
|
} |
|
} |
|
function findDir(node, name, allowEmpty = false) { |
|
for (let i = 0; i < node.props.length; i++) { |
|
const p = node.props[i]; |
|
if (p.type === 7 /* DIRECTIVE */ && |
|
(allowEmpty || p.exp) && |
|
(isString(name) ? p.name === name : name.test(p.name))) { |
|
return p; |
|
} |
|
} |
|
} |
|
function findProp(node, name, dynamicOnly = false, allowEmpty = false) { |
|
for (let i = 0; i < node.props.length; i++) { |
|
const p = node.props[i]; |
|
if (p.type === 6 /* ATTRIBUTE */) { |
|
if (dynamicOnly) |
|
continue; |
|
if (p.name === name && (p.value || allowEmpty)) { |
|
return p; |
|
} |
|
} |
|
else if (p.name === 'bind' && |
|
(p.exp || allowEmpty) && |
|
isStaticArgOf(p.arg, name)) { |
|
return p; |
|
} |
|
} |
|
} |
|
function isStaticArgOf(arg, name) { |
|
return !!(arg && isStaticExp(arg) && arg.content === name); |
|
} |
|
function hasDynamicKeyVBind(node) { |
|
return node.props.some(p => p.type === 7 /* DIRECTIVE */ && |
|
p.name === 'bind' && |
|
(!p.arg || // v-bind="obj" |
|
p.arg.type !== 4 /* SIMPLE_EXPRESSION */ || // v-bind:[_ctx.foo] |
|
!p.arg.isStatic) // v-bind:[foo] |
|
); |
|
} |
|
function isText(node) { |
|
return node.type === 5 /* INTERPOLATION */ || node.type === 2 /* TEXT */; |
|
} |
|
function isVSlot(p) { |
|
return p.type === 7 /* DIRECTIVE */ && p.name === 'slot'; |
|
} |
|
function isTemplateNode(node) { |
|
return (node.type === 1 /* ELEMENT */ && node.tagType === 3 /* TEMPLATE */); |
|
} |
|
function isSlotOutlet(node) { |
|
return node.type === 1 /* ELEMENT */ && node.tagType === 2 /* SLOT */; |
|
} |
|
function getVNodeHelper(ssr, isComponent) { |
|
return ssr || isComponent ? CREATE_VNODE : CREATE_ELEMENT_VNODE; |
|
} |
|
function getVNodeBlockHelper(ssr, isComponent) { |
|
return ssr || isComponent ? CREATE_BLOCK : CREATE_ELEMENT_BLOCK; |
|
} |
|
const propsHelperSet = new Set([NORMALIZE_PROPS, GUARD_REACTIVE_PROPS]); |
|
function getUnnormalizedProps(props, callPath = []) { |
|
if (props && |
|
!isString(props) && |
|
props.type === 14 /* JS_CALL_EXPRESSION */) { |
|
const callee = props.callee; |
|
if (!isString(callee) && propsHelperSet.has(callee)) { |
|
return getUnnormalizedProps(props.arguments[0], callPath.concat(props)); |
|
} |
|
} |
|
return [props, callPath]; |
|
} |
|
function injectProp(node, prop, context) { |
|
let propsWithInjection; |
|
/** |
|
* 1. mergeProps(...) |
|
* 2. toHandlers(...) |
|
* 3. normalizeProps(...) |
|
* 4. normalizeProps(guardReactiveProps(...)) |
|
* |
|
* we need to get the real props before normalization |
|
*/ |
|
let props = node.type === 13 /* VNODE_CALL */ ? node.props : node.arguments[2]; |
|
let callPath = []; |
|
let parentCall; |
|
if (props && |
|
!isString(props) && |
|
props.type === 14 /* JS_CALL_EXPRESSION */) { |
|
const ret = getUnnormalizedProps(props); |
|
props = ret[0]; |
|
callPath = ret[1]; |
|
parentCall = callPath[callPath.length - 1]; |
|
} |
|
if (props == null || isString(props)) { |
|
propsWithInjection = createObjectExpression([prop]); |
|
} |
|
else if (props.type === 14 /* JS_CALL_EXPRESSION */) { |
|
// merged props... add ours |
|
// only inject key to object literal if it's the first argument so that |
|
// if doesn't override user provided keys |
|
const first = props.arguments[0]; |
|
if (!isString(first) && first.type === 15 /* JS_OBJECT_EXPRESSION */) { |
|
first.properties.unshift(prop); |
|
} |
|
else { |
|
if (props.callee === TO_HANDLERS) { |
|
// #2366 |
|
propsWithInjection = createCallExpression(context.helper(MERGE_PROPS), [ |
|
createObjectExpression([prop]), |
|
props |
|
]); |
|
} |
|
else { |
|
props.arguments.unshift(createObjectExpression([prop])); |
|
} |
|
} |
|
!propsWithInjection && (propsWithInjection = props); |
|
} |
|
else if (props.type === 15 /* JS_OBJECT_EXPRESSION */) { |
|
let alreadyExists = false; |
|
// check existing key to avoid overriding user provided keys |
|
if (prop.key.type === 4 /* SIMPLE_EXPRESSION */) { |
|
const propKeyName = prop.key.content; |
|
alreadyExists = props.properties.some(p => p.key.type === 4 /* SIMPLE_EXPRESSION */ && |
|
p.key.content === propKeyName); |
|
} |
|
if (!alreadyExists) { |
|
props.properties.unshift(prop); |
|
} |
|
propsWithInjection = props; |
|
} |
|
else { |
|
// single v-bind with expression, return a merged replacement |
|
propsWithInjection = createCallExpression(context.helper(MERGE_PROPS), [ |
|
createObjectExpression([prop]), |
|
props |
|
]); |
|
// in the case of nested helper call, e.g. `normalizeProps(guardReactiveProps(props))`, |
|
// it will be rewritten as `normalizeProps(mergeProps({ key: 0 }, props))`, |
|
// the `guardReactiveProps` will no longer be needed |
|
if (parentCall && parentCall.callee === GUARD_REACTIVE_PROPS) { |
|
parentCall = callPath[callPath.length - 2]; |
|
} |
|
} |
|
if (node.type === 13 /* VNODE_CALL */) { |
|
if (parentCall) { |
|
parentCall.arguments[0] = propsWithInjection; |
|
} |
|
else { |
|
node.props = propsWithInjection; |
|
} |
|
} |
|
else { |
|
if (parentCall) { |
|
parentCall.arguments[0] = propsWithInjection; |
|
} |
|
else { |
|
node.arguments[2] = propsWithInjection; |
|
} |
|
} |
|
} |
|
function toValidAssetId(name, type) { |
|
// see issue#4422, we need adding identifier on validAssetId if variable `name` has specific character |
|
return `_${type}_${name.replace(/[^\w]/g, (searchValue, replaceValue) => { |
|
return searchValue === '-' ? '_' : name.charCodeAt(replaceValue).toString(); |
|
})}`; |
|
} |
|
// Check if a node contains expressions that reference current context scope ids |
|
function hasScopeRef(node, ids) { |
|
if (!node || Object.keys(ids).length === 0) { |
|
return false; |
|
} |
|
switch (node.type) { |
|
case 1 /* ELEMENT */: |
|
for (let i = 0; i < node.props.length; i++) { |
|
const p = node.props[i]; |
|
if (p.type === 7 /* DIRECTIVE */ && |
|
(hasScopeRef(p.arg, ids) || hasScopeRef(p.exp, ids))) { |
|
return true; |
|
} |
|
} |
|
return node.children.some(c => hasScopeRef(c, ids)); |
|
case 11 /* FOR */: |
|
if (hasScopeRef(node.source, ids)) { |
|
return true; |
|
} |
|
return node.children.some(c => hasScopeRef(c, ids)); |
|
case 9 /* IF */: |
|
return node.branches.some(b => hasScopeRef(b, ids)); |
|
case 10 /* IF_BRANCH */: |
|
if (hasScopeRef(node.condition, ids)) { |
|
return true; |
|
} |
|
return node.children.some(c => hasScopeRef(c, ids)); |
|
case 4 /* SIMPLE_EXPRESSION */: |
|
return (!node.isStatic && |
|
isSimpleIdentifier(node.content) && |
|
!!ids[node.content]); |
|
case 8 /* COMPOUND_EXPRESSION */: |
|
return node.children.some(c => isObject(c) && hasScopeRef(c, ids)); |
|
case 5 /* INTERPOLATION */: |
|
case 12 /* TEXT_CALL */: |
|
return hasScopeRef(node.content, ids); |
|
case 2 /* TEXT */: |
|
case 3 /* COMMENT */: |
|
return false; |
|
default: |
|
return false; |
|
} |
|
} |
|
function getMemoedVNodeCall(node) { |
|
if (node.type === 14 /* JS_CALL_EXPRESSION */ && node.callee === WITH_MEMO) { |
|
return node.arguments[1].returns; |
|
} |
|
else { |
|
return node; |
|
} |
|
} |
|
function makeBlock(node, { helper, removeHelper, inSSR }) { |
|
if (!node.isBlock) { |
|
node.isBlock = true; |
|
removeHelper(getVNodeHelper(inSSR, node.isComponent)); |
|
helper(OPEN_BLOCK); |
|
helper(getVNodeBlockHelper(inSSR, node.isComponent)); |
|
} |
|
} |
|
|
|
const deprecationData = { |
|
["COMPILER_IS_ON_ELEMENT" /* COMPILER_IS_ON_ELEMENT */]: { |
|
message: `Platform-native elements with "is" prop will no longer be ` + |
|
`treated as components in Vue 3 unless the "is" value is explicitly ` + |
|
`prefixed with "vue:".`, |
|
link: `https://v3-migration.vuejs.org/breaking-changes/custom-elements-interop.html` |
|
}, |
|
["COMPILER_V_BIND_SYNC" /* COMPILER_V_BIND_SYNC */]: { |
|
message: key => `.sync modifier for v-bind has been removed. Use v-model with ` + |
|
`argument instead. \`v-bind:${key}.sync\` should be changed to ` + |
|
`\`v-model:${key}\`.`, |
|
link: `https://v3-migration.vuejs.org/breaking-changes/v-model.html` |
|
}, |
|
["COMPILER_V_BIND_PROP" /* COMPILER_V_BIND_PROP */]: { |
|
message: `.prop modifier for v-bind has been removed and no longer necessary. ` + |
|
`Vue 3 will automatically set a binding as DOM property when appropriate.` |
|
}, |
|
["COMPILER_V_BIND_OBJECT_ORDER" /* COMPILER_V_BIND_OBJECT_ORDER */]: { |
|
message: `v-bind="obj" usage is now order sensitive and behaves like JavaScript ` + |
|
`object spread: it will now overwrite an existing non-mergeable attribute ` + |
|
`that appears before v-bind in the case of conflict. ` + |
|
`To retain 2.x behavior, move v-bind to make it the first attribute. ` + |
|
`You can also suppress this warning if the usage is intended.`, |
|
link: `https://v3-migration.vuejs.org/breaking-changes/v-bind.html` |
|
}, |
|
["COMPILER_V_ON_NATIVE" /* COMPILER_V_ON_NATIVE */]: { |
|
message: `.native modifier for v-on has been removed as is no longer necessary.`, |
|
link: `https://v3-migration.vuejs.org/breaking-changes/v-on-native-modifier-removed.html` |
|
}, |
|
["COMPILER_V_IF_V_FOR_PRECEDENCE" /* COMPILER_V_IF_V_FOR_PRECEDENCE */]: { |
|
message: `v-if / v-for precedence when used on the same element has changed ` + |
|
`in Vue 3: v-if now takes higher precedence and will no longer have ` + |
|
`access to v-for scope variables. It is best to avoid the ambiguity ` + |
|
`with <template> tags or use a computed property that filters v-for ` + |
|
`data source.`, |
|
link: `https://v3-migration.vuejs.org/breaking-changes/v-if-v-for.html` |
|
}, |
|
["COMPILER_NATIVE_TEMPLATE" /* COMPILER_NATIVE_TEMPLATE */]: { |
|
message: `<template> with no special directives will render as a native template ` + |
|
`element instead of its inner content in Vue 3.` |
|
}, |
|
["COMPILER_INLINE_TEMPLATE" /* COMPILER_INLINE_TEMPLATE */]: { |
|
message: `"inline-template" has been removed in Vue 3.`, |
|
link: `https://v3-migration.vuejs.org/breaking-changes/inline-template-attribute.html` |
|
}, |
|
["COMPILER_FILTER" /* COMPILER_FILTERS */]: { |
|
message: `filters have been removed in Vue 3. ` + |
|
`The "|" symbol will be treated as native JavaScript bitwise OR operator. ` + |
|
`Use method calls or computed properties instead.`, |
|
link: `https://v3-migration.vuejs.org/breaking-changes/filters.html` |
|
} |
|
}; |
|
function getCompatValue(key, context) { |
|
const config = context.options |
|
? context.options.compatConfig |
|
: context.compatConfig; |
|
const value = config && config[key]; |
|
if (key === 'MODE') { |
|
return value || 3; // compiler defaults to v3 behavior |
|
} |
|
else { |
|
return value; |
|
} |
|
} |
|
function isCompatEnabled(key, context) { |
|
const mode = getCompatValue('MODE', context); |
|
const value = getCompatValue(key, context); |
|
// in v3 mode, only enable if explicitly set to true |
|
// otherwise enable for any non-false value |
|
return mode === 3 ? value === true : value !== false; |
|
} |
|
function checkCompatEnabled(key, context, loc, ...args) { |
|
const enabled = isCompatEnabled(key, context); |
|
if (enabled) { |
|
warnDeprecation(key, context, loc, ...args); |
|
} |
|
return enabled; |
|
} |
|
function warnDeprecation(key, context, loc, ...args) { |
|
const val = getCompatValue(key, context); |
|
if (val === 'suppress-warning') { |
|
return; |
|
} |
|
const { message, link } = deprecationData[key]; |
|
const msg = `(deprecation ${key}) ${typeof message === 'function' ? message(...args) : message}${link ? `\n Details: ${link}` : ``}`; |
|
const err = new SyntaxError(msg); |
|
err.code = key; |
|
if (loc) |
|
err.loc = loc; |
|
context.onWarn(err); |
|
} |
|
|
|
// The default decoder only provides escapes for characters reserved as part of |
|
// the template syntax, and is only used if the custom renderer did not provide |
|
// a platform-specific decoder. |
|
const decodeRE = /&(gt|lt|amp|apos|quot);/g; |
|
const decodeMap = { |
|
gt: '>', |
|
lt: '<', |
|
amp: '&', |
|
apos: "'", |
|
quot: '"' |
|
}; |
|
const defaultParserOptions = { |
|
delimiters: [`{{`, `}}`], |
|
getNamespace: () => 0 /* HTML */, |
|
getTextMode: () => 0 /* DATA */, |
|
isVoidTag: NO, |
|
isPreTag: NO, |
|
isCustomElement: NO, |
|
decodeEntities: (rawText) => rawText.replace(decodeRE, (_, p1) => decodeMap[p1]), |
|
onError: defaultOnError, |
|
onWarn: defaultOnWarn, |
|
comments: true |
|
}; |
|
function baseParse(content, options = {}) { |
|
const context = createParserContext(content, options); |
|
const start = getCursor(context); |
|
return createRoot(parseChildren(context, 0 /* DATA */, []), getSelection(context, start)); |
|
} |
|
function createParserContext(content, rawOptions) { |
|
const options = extend({}, defaultParserOptions); |
|
let key; |
|
for (key in rawOptions) { |
|
// @ts-ignore |
|
options[key] = |
|
rawOptions[key] === undefined |
|
? defaultParserOptions[key] |
|
: rawOptions[key]; |
|
} |
|
return { |
|
options, |
|
column: 1, |
|
line: 1, |
|
offset: 0, |
|
originalSource: content, |
|
source: content, |
|
inPre: false, |
|
inVPre: false, |
|
onWarn: options.onWarn |
|
}; |
|
} |
|
function parseChildren(context, mode, ancestors) { |
|
const parent = last(ancestors); |
|
const ns = parent ? parent.ns : 0 /* HTML */; |
|
const nodes = []; |
|
while (!isEnd(context, mode, ancestors)) { |
|
const s = context.source; |
|
let node = undefined; |
|
if (mode === 0 /* DATA */ || mode === 1 /* RCDATA */) { |
|
if (!context.inVPre && startsWith(s, context.options.delimiters[0])) { |
|
// '{{' |
|
node = parseInterpolation(context, mode); |
|
} |
|
else if (mode === 0 /* DATA */ && s[0] === '<') { |
|
// https://html.spec.whatwg.org/multipage/parsing.html#tag-open-state |
|
if (s.length === 1) { |
|
emitError(context, 5 /* EOF_BEFORE_TAG_NAME */, 1); |
|
} |
|
else if (s[1] === '!') { |
|
// https://html.spec.whatwg.org/multipage/parsing.html#markup-declaration-open-state |
|
if (startsWith(s, '<!--')) { |
|
node = parseComment(context); |
|
} |
|
else if (startsWith(s, '<!DOCTYPE')) { |
|
// Ignore DOCTYPE by a limitation. |
|
node = parseBogusComment(context); |
|
} |
|
else if (startsWith(s, '<![CDATA[')) { |
|
if (ns !== 0 /* HTML */) { |
|
node = parseCDATA(context, ancestors); |
|
} |
|
else { |
|
emitError(context, 1 /* CDATA_IN_HTML_CONTENT */); |
|
node = parseBogusComment(context); |
|
} |
|
} |
|
else { |
|
emitError(context, 11 /* INCORRECTLY_OPENED_COMMENT */); |
|
node = parseBogusComment(context); |
|
} |
|
} |
|
else if (s[1] === '/') { |
|
// https://html.spec.whatwg.org/multipage/parsing.html#end-tag-open-state |
|
if (s.length === 2) { |
|
emitError(context, 5 /* EOF_BEFORE_TAG_NAME */, 2); |
|
} |
|
else if (s[2] === '>') { |
|
emitError(context, 14 /* MISSING_END_TAG_NAME */, 2); |
|
advanceBy(context, 3); |
|
continue; |
|
} |
|
else if (/[a-z]/i.test(s[2])) { |
|
emitError(context, 23 /* X_INVALID_END_TAG */); |
|
parseTag(context, 1 /* End */, parent); |
|
continue; |
|
} |
|
else { |
|
emitError(context, 12 /* INVALID_FIRST_CHARACTER_OF_TAG_NAME */, 2); |
|
node = parseBogusComment(context); |
|
} |
|
} |
|
else if (/[a-z]/i.test(s[1])) { |
|
node = parseElement(context, ancestors); |
|
// 2.x <template> with no directive compat |
|
if (isCompatEnabled("COMPILER_NATIVE_TEMPLATE" /* COMPILER_NATIVE_TEMPLATE */, context) && |
|
node && |
|
node.tag === 'template' && |
|
!node.props.some(p => p.type === 7 /* DIRECTIVE */ && |
|
isSpecialTemplateDirective(p.name))) { |
|
warnDeprecation("COMPILER_NATIVE_TEMPLATE" /* COMPILER_NATIVE_TEMPLATE */, context, node.loc); |
|
node = node.children; |
|
} |
|
} |
|
else if (s[1] === '?') { |
|
emitError(context, 21 /* UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME */, 1); |
|
node = parseBogusComment(context); |
|
} |
|
else { |
|
emitError(context, 12 /* INVALID_FIRST_CHARACTER_OF_TAG_NAME */, 1); |
|
} |
|
} |
|
} |
|
if (!node) { |
|
node = parseText(context, mode); |
|
} |
|
if (isArray(node)) { |
|
for (let i = 0; i < node.length; i++) { |
|
pushNode(nodes, node[i]); |
|
} |
|
} |
|
else { |
|
pushNode(nodes, node); |
|
} |
|
} |
|
// Whitespace handling strategy like v2 |
|
let removedWhitespace = false; |
|
if (mode !== 2 /* RAWTEXT */ && mode !== 1 /* RCDATA */) { |
|
const shouldCondense = context.options.whitespace !== 'preserve'; |
|
for (let i = 0; i < nodes.length; i++) { |
|
const node = nodes[i]; |
|
if (!context.inPre && node.type === 2 /* TEXT */) { |
|
if (!/[^\t\r\n\f ]/.test(node.content)) { |
|
const prev = nodes[i - 1]; |
|
const next = nodes[i + 1]; |
|
// Remove if: |
|
// - the whitespace is the first or last node, or: |
|
// - (condense mode) the whitespace is adjacent to a comment, or: |
|
// - (condense mode) the whitespace is between two elements AND contains newline |
|
if (!prev || |
|
!next || |
|
(shouldCondense && |
|
(prev.type === 3 /* COMMENT */ || |
|
next.type === 3 /* COMMENT */ || |
|
(prev.type === 1 /* ELEMENT */ && |
|
next.type === 1 /* ELEMENT */ && |
|
/[\r\n]/.test(node.content))))) { |
|
removedWhitespace = true; |
|
nodes[i] = null; |
|
} |
|
else { |
|
// Otherwise, the whitespace is condensed into a single space |
|
node.content = ' '; |
|
} |
|
} |
|
else if (shouldCondense) { |
|
// in condense mode, consecutive whitespaces in text are condensed |
|
// down to a single space. |
|
node.content = node.content.replace(/[\t\r\n\f ]+/g, ' '); |
|
} |
|
} |
|
// Remove comment nodes if desired by configuration. |
|
else if (node.type === 3 /* COMMENT */ && !context.options.comments) { |
|
removedWhitespace = true; |
|
nodes[i] = null; |
|
} |
|
} |
|
if (context.inPre && parent && context.options.isPreTag(parent.tag)) { |
|
// remove leading newline per html spec |
|
// https://html.spec.whatwg.org/multipage/grouping-content.html#the-pre-element |
|
const first = nodes[0]; |
|
if (first && first.type === 2 /* TEXT */) { |
|
first.content = first.content.replace(/^\r?\n/, ''); |
|
} |
|
} |
|
} |
|
return removedWhitespace ? nodes.filter(Boolean) : nodes; |
|
} |
|
function pushNode(nodes, node) { |
|
if (node.type === 2 /* TEXT */) { |
|
const prev = last(nodes); |
|
// Merge if both this and the previous node are text and those are |
|
// consecutive. This happens for cases like "a < b". |
|
if (prev && |
|
prev.type === 2 /* TEXT */ && |
|
prev.loc.end.offset === node.loc.start.offset) { |
|
prev.content += node.content; |
|
prev.loc.end = node.loc.end; |
|
prev.loc.source += node.loc.source; |
|
return; |
|
} |
|
} |
|
nodes.push(node); |
|
} |
|
function parseCDATA(context, ancestors) { |
|
advanceBy(context, 9); |
|
const nodes = parseChildren(context, 3 /* CDATA */, ancestors); |
|
if (context.source.length === 0) { |
|
emitError(context, 6 /* EOF_IN_CDATA */); |
|
} |
|
else { |
|
advanceBy(context, 3); |
|
} |
|
return nodes; |
|
} |
|
function parseComment(context) { |
|
const start = getCursor(context); |
|
let content; |
|
// Regular comment. |
|
const match = /--(\!)?>/.exec(context.source); |
|
if (!match) { |
|
content = context.source.slice(4); |
|
advanceBy(context, context.source.length); |
|
emitError(context, 7 /* EOF_IN_COMMENT */); |
|
} |
|
else { |
|
if (match.index <= 3) { |
|
emitError(context, 0 /* ABRUPT_CLOSING_OF_EMPTY_COMMENT */); |
|
} |
|
if (match[1]) { |
|
emitError(context, 10 /* INCORRECTLY_CLOSED_COMMENT */); |
|
} |
|
content = context.source.slice(4, match.index); |
|
// Advancing with reporting nested comments. |
|
const s = context.source.slice(0, match.index); |
|
let prevIndex = 1, nestedIndex = 0; |
|
while ((nestedIndex = s.indexOf('<!--', prevIndex)) !== -1) { |
|
advanceBy(context, nestedIndex - prevIndex + 1); |
|
if (nestedIndex + 4 < s.length) { |
|
emitError(context, 16 /* NESTED_COMMENT */); |
|
} |
|
prevIndex = nestedIndex + 1; |
|
} |
|
advanceBy(context, match.index + match[0].length - prevIndex + 1); |
|
} |
|
return { |
|
type: 3 /* COMMENT */, |
|
content, |
|
loc: getSelection(context, start) |
|
}; |
|
} |
|
function parseBogusComment(context) { |
|
const start = getCursor(context); |
|
const contentStart = context.source[1] === '?' ? 1 : 2; |
|
let content; |
|
const closeIndex = context.source.indexOf('>'); |
|
if (closeIndex === -1) { |
|
content = context.source.slice(contentStart); |
|
advanceBy(context, context.source.length); |
|
} |
|
else { |
|
content = context.source.slice(contentStart, closeIndex); |
|
advanceBy(context, closeIndex + 1); |
|
} |
|
return { |
|
type: 3 /* COMMENT */, |
|
content, |
|
loc: getSelection(context, start) |
|
}; |
|
} |
|
function parseElement(context, ancestors) { |
|
// Start tag. |
|
const wasInPre = context.inPre; |
|
const wasInVPre = context.inVPre; |
|
const parent = last(ancestors); |
|
const element = parseTag(context, 0 /* Start */, parent); |
|
const isPreBoundary = context.inPre && !wasInPre; |
|
const isVPreBoundary = context.inVPre && !wasInVPre; |
|
if (element.isSelfClosing || context.options.isVoidTag(element.tag)) { |
|
// #4030 self-closing <pre> tag |
|
if (isPreBoundary) { |
|
context.inPre = false; |
|
} |
|
if (isVPreBoundary) { |
|
context.inVPre = false; |
|
} |
|
return element; |
|
} |
|
// Children. |
|
ancestors.push(element); |
|
const mode = context.options.getTextMode(element, parent); |
|
const children = parseChildren(context, mode, ancestors); |
|
ancestors.pop(); |
|
// 2.x inline-template compat |
|
{ |
|
const inlineTemplateProp = element.props.find(p => p.type === 6 /* ATTRIBUTE */ && p.name === 'inline-template'); |
|
if (inlineTemplateProp && |
|
checkCompatEnabled("COMPILER_INLINE_TEMPLATE" /* COMPILER_INLINE_TEMPLATE */, context, inlineTemplateProp.loc)) { |
|
const loc = getSelection(context, element.loc.end); |
|
inlineTemplateProp.value = { |
|
type: 2 /* TEXT */, |
|
content: loc.source, |
|
loc |
|
}; |
|
} |
|
} |
|
element.children = children; |
|
// End tag. |
|
if (startsWithEndTagOpen(context.source, element.tag)) { |
|
parseTag(context, 1 /* End */, parent); |
|
} |
|
else { |
|
emitError(context, 24 /* X_MISSING_END_TAG */, 0, element.loc.start); |
|
if (context.source.length === 0 && element.tag.toLowerCase() === 'script') { |
|
const first = children[0]; |
|
if (first && startsWith(first.loc.source, '<!--')) { |
|
emitError(context, 8 /* EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT */); |
|
} |
|
} |
|
} |
|
element.loc = getSelection(context, element.loc.start); |
|
if (isPreBoundary) { |
|
context.inPre = false; |
|
} |
|
if (isVPreBoundary) { |
|
context.inVPre = false; |
|
} |
|
return element; |
|
} |
|
const isSpecialTemplateDirective = /*#__PURE__*/ makeMap(`if,else,else-if,for,slot`); |
|
function parseTag(context, type, parent) { |
|
// Tag open. |
|
const start = getCursor(context); |
|
const match = /^<\/?([a-z][^\t\r\n\f />]*)/i.exec(context.source); |
|
const tag = match[1]; |
|
const ns = context.options.getNamespace(tag, parent); |
|
advanceBy(context, match[0].length); |
|
advanceSpaces(context); |
|
// save current state in case we need to re-parse attributes with v-pre |
|
const cursor = getCursor(context); |
|
const currentSource = context.source; |
|
// check <pre> tag |
|
if (context.options.isPreTag(tag)) { |
|
context.inPre = true; |
|
} |
|
// Attributes. |
|
let props = parseAttributes(context, type); |
|
// check v-pre |
|
if (type === 0 /* Start */ && |
|
!context.inVPre && |
|
props.some(p => p.type === 7 /* DIRECTIVE */ && p.name === 'pre')) { |
|
context.inVPre = true; |
|
// reset context |
|
extend(context, cursor); |
|
context.source = currentSource; |
|
// re-parse attrs and filter out v-pre itself |
|
props = parseAttributes(context, type).filter(p => p.name !== 'v-pre'); |
|
} |
|
// Tag close. |
|
let isSelfClosing = false; |
|
if (context.source.length === 0) { |
|
emitError(context, 9 /* EOF_IN_TAG */); |
|
} |
|
else { |
|
isSelfClosing = startsWith(context.source, '/>'); |
|
if (type === 1 /* End */ && isSelfClosing) { |
|
emitError(context, 4 /* END_TAG_WITH_TRAILING_SOLIDUS */); |
|
} |
|
advanceBy(context, isSelfClosing ? 2 : 1); |
|
} |
|
if (type === 1 /* End */) { |
|
return; |
|
} |
|
// 2.x deprecation checks |
|
if (isCompatEnabled("COMPILER_V_IF_V_FOR_PRECEDENCE" /* COMPILER_V_IF_V_FOR_PRECEDENCE */, context)) { |
|
let hasIf = false; |
|
let hasFor = false; |
|
for (let i = 0; i < props.length; i++) { |
|
const p = props[i]; |
|
if (p.type === 7 /* DIRECTIVE */) { |
|
if (p.name === 'if') { |
|
hasIf = true; |
|
} |
|
else if (p.name === 'for') { |
|
hasFor = true; |
|
} |
|
} |
|
if (hasIf && hasFor) { |
|
warnDeprecation("COMPILER_V_IF_V_FOR_PRECEDENCE" /* COMPILER_V_IF_V_FOR_PRECEDENCE */, context, getSelection(context, start)); |
|
break; |
|
} |
|
} |
|
} |
|
let tagType = 0 /* ELEMENT */; |
|
if (!context.inVPre) { |
|
if (tag === 'slot') { |
|
tagType = 2 /* SLOT */; |
|
} |
|
else if (tag === 'template') { |
|
if (props.some(p => p.type === 7 /* DIRECTIVE */ && isSpecialTemplateDirective(p.name))) { |
|
tagType = 3 /* TEMPLATE */; |
|
} |
|
} |
|
else if (isComponent(tag, props, context)) { |
|
tagType = 1 /* COMPONENT */; |
|
} |
|
} |
|
return { |
|
type: 1 /* ELEMENT */, |
|
ns, |
|
tag, |
|
tagType, |
|
props, |
|
isSelfClosing, |
|
children: [], |
|
loc: getSelection(context, start), |
|
codegenNode: undefined // to be created during transform phase |
|
}; |
|
} |
|
function isComponent(tag, props, context) { |
|
const options = context.options; |
|
if (options.isCustomElement(tag)) { |
|
return false; |
|
} |
|
if (tag === 'component' || |
|
/^[A-Z]/.test(tag) || |
|
isCoreComponent(tag) || |
|
(options.isBuiltInComponent && options.isBuiltInComponent(tag)) || |
|
(options.isNativeTag && !options.isNativeTag(tag))) { |
|
return true; |
|
} |
|
// at this point the tag should be a native tag, but check for potential "is" |
|
// casting |
|
for (let i = 0; i < props.length; i++) { |
|
const p = props[i]; |
|
if (p.type === 6 /* ATTRIBUTE */) { |
|
if (p.name === 'is' && p.value) { |
|
if (p.value.content.startsWith('vue:')) { |
|
return true; |
|
} |
|
else if (checkCompatEnabled("COMPILER_IS_ON_ELEMENT" /* COMPILER_IS_ON_ELEMENT */, context, p.loc)) { |
|
return true; |
|
} |
|
} |
|
} |
|
else { |
|
// directive |
|
// v-is (TODO Deprecate) |
|
if (p.name === 'is') { |
|
return true; |
|
} |
|
else if ( |
|
// :is on plain element - only treat as component in compat mode |
|
p.name === 'bind' && |
|
isStaticArgOf(p.arg, 'is') && |
|
true && |
|
checkCompatEnabled("COMPILER_IS_ON_ELEMENT" /* COMPILER_IS_ON_ELEMENT */, context, p.loc)) { |
|
return true; |
|
} |
|
} |
|
} |
|
} |
|
function parseAttributes(context, type) { |
|
const props = []; |
|
const attributeNames = new Set(); |
|
while (context.source.length > 0 && |
|
!startsWith(context.source, '>') && |
|
!startsWith(context.source, '/>')) { |
|
if (startsWith(context.source, '/')) { |
|
emitError(context, 22 /* UNEXPECTED_SOLIDUS_IN_TAG */); |
|
advanceBy(context, 1); |
|
advanceSpaces(context); |
|
continue; |
|
} |
|
if (type === 1 /* End */) { |
|
emitError(context, 3 /* END_TAG_WITH_ATTRIBUTES */); |
|
} |
|
const attr = parseAttribute(context, attributeNames); |
|
// Trim whitespace between class |
|
// https://github.com/vuejs/core/issues/4251 |
|
if (attr.type === 6 /* ATTRIBUTE */ && |
|
attr.value && |
|
attr.name === 'class') { |
|
attr.value.content = attr.value.content.replace(/\s+/g, ' ').trim(); |
|
} |
|
if (type === 0 /* Start */) { |
|
props.push(attr); |
|
} |
|
if (/^[^\t\r\n\f />]/.test(context.source)) { |
|
emitError(context, 15 /* MISSING_WHITESPACE_BETWEEN_ATTRIBUTES */); |
|
} |
|
advanceSpaces(context); |
|
} |
|
return props; |
|
} |
|
function parseAttribute(context, nameSet) { |
|
// Name. |
|
const start = getCursor(context); |
|
const match = /^[^\t\r\n\f />][^\t\r\n\f />=]*/.exec(context.source); |
|
const name = match[0]; |
|
if (nameSet.has(name)) { |
|
emitError(context, 2 /* DUPLICATE_ATTRIBUTE */); |
|
} |
|
nameSet.add(name); |
|
if (name[0] === '=') { |
|
emitError(context, 19 /* UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME */); |
|
} |
|
{ |
|
const pattern = /["'<]/g; |
|
let m; |
|
while ((m = pattern.exec(name))) { |
|
emitError(context, 17 /* UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME */, m.index); |
|
} |
|
} |
|
advanceBy(context, name.length); |
|
// Value |
|
let value = undefined; |
|
if (/^[\t\r\n\f ]*=/.test(context.source)) { |
|
advanceSpaces(context); |
|
advanceBy(context, 1); |
|
advanceSpaces(context); |
|
value = parseAttributeValue(context); |
|
if (!value) { |
|
emitError(context, 13 /* MISSING_ATTRIBUTE_VALUE */); |
|
} |
|
} |
|
const loc = getSelection(context, start); |
|
if (!context.inVPre && /^(v-[A-Za-z0-9-]|:|\.|@|#)/.test(name)) { |
|
const match = /(?:^v-([a-z0-9-]+))?(?:(?::|^\.|^@|^#)(\[[^\]]+\]|[^\.]+))?(.+)?$/i.exec(name); |
|
let isPropShorthand = startsWith(name, '.'); |
|
let dirName = match[1] || |
|
(isPropShorthand || startsWith(name, ':') |
|
? 'bind' |
|
: startsWith(name, '@') |
|
? 'on' |
|
: 'slot'); |
|
let arg; |
|
if (match[2]) { |
|
const isSlot = dirName === 'slot'; |
|
const startOffset = name.lastIndexOf(match[2]); |
|
const loc = getSelection(context, getNewPosition(context, start, startOffset), getNewPosition(context, start, startOffset + match[2].length + ((isSlot && match[3]) || '').length)); |
|
let content = match[2]; |
|
let isStatic = true; |
|
if (content.startsWith('[')) { |
|
isStatic = false; |
|
if (!content.endsWith(']')) { |
|
emitError(context, 27 /* X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END */); |
|
content = content.slice(1); |
|
} |
|
else { |
|
content = content.slice(1, content.length - 1); |
|
} |
|
} |
|
else if (isSlot) { |
|
// #1241 special case for v-slot: vuetify relies extensively on slot |
|
// names containing dots. v-slot doesn't have any modifiers and Vue 2.x |
|
// supports such usage so we are keeping it consistent with 2.x. |
|
content += match[3] || ''; |
|
} |
|
arg = { |
|
type: 4 /* SIMPLE_EXPRESSION */, |
|
content, |
|
isStatic, |
|
constType: isStatic |
|
? 3 /* CAN_STRINGIFY */ |
|
: 0 /* NOT_CONSTANT */, |
|
loc |
|
}; |
|
} |
|
if (value && value.isQuoted) { |
|
const valueLoc = value.loc; |
|
valueLoc.start.offset++; |
|
valueLoc.start.column++; |
|
valueLoc.end = advancePositionWithClone(valueLoc.start, value.content); |
|
valueLoc.source = valueLoc.source.slice(1, -1); |
|
} |
|
const modifiers = match[3] ? match[3].slice(1).split('.') : []; |
|
if (isPropShorthand) |
|
modifiers.push('prop'); |
|
// 2.x compat v-bind:foo.sync -> v-model:foo |
|
if (dirName === 'bind' && arg) { |
|
if (modifiers.includes('sync') && |
|
checkCompatEnabled("COMPILER_V_BIND_SYNC" /* COMPILER_V_BIND_SYNC */, context, loc, arg.loc.source)) { |
|
dirName = 'model'; |
|
modifiers.splice(modifiers.indexOf('sync'), 1); |
|
} |
|
if (modifiers.includes('prop')) { |
|
checkCompatEnabled("COMPILER_V_BIND_PROP" /* COMPILER_V_BIND_PROP */, context, loc); |
|
} |
|
} |
|
return { |
|
type: 7 /* DIRECTIVE */, |
|
name: dirName, |
|
exp: value && { |
|
type: 4 /* SIMPLE_EXPRESSION */, |
|
content: value.content, |
|
isStatic: false, |
|
// Treat as non-constant by default. This can be potentially set to |
|
// other values by `transformExpression` to make it eligible for hoisting. |
|
constType: 0 /* NOT_CONSTANT */, |
|
loc: value.loc |
|
}, |
|
arg, |
|
modifiers, |
|
loc |
|
}; |
|
} |
|
// missing directive name or illegal directive name |
|
if (!context.inVPre && startsWith(name, 'v-')) { |
|
emitError(context, 26 /* X_MISSING_DIRECTIVE_NAME */); |
|
} |
|
return { |
|
type: 6 /* ATTRIBUTE */, |
|
name, |
|
value: value && { |
|
type: 2 /* TEXT */, |
|
content: value.content, |
|
loc: value.loc |
|
}, |
|
loc |
|
}; |
|
} |
|
function parseAttributeValue(context) { |
|
const start = getCursor(context); |
|
let content; |
|
const quote = context.source[0]; |
|
const isQuoted = quote === `"` || quote === `'`; |
|
if (isQuoted) { |
|
// Quoted value. |
|
advanceBy(context, 1); |
|
const endIndex = context.source.indexOf(quote); |
|
if (endIndex === -1) { |
|
content = parseTextData(context, context.source.length, 4 /* ATTRIBUTE_VALUE */); |
|
} |
|
else { |
|
content = parseTextData(context, endIndex, 4 /* ATTRIBUTE_VALUE */); |
|
advanceBy(context, 1); |
|
} |
|
} |
|
else { |
|
// Unquoted |
|
const match = /^[^\t\r\n\f >]+/.exec(context.source); |
|
if (!match) { |
|
return undefined; |
|
} |
|
const unexpectedChars = /["'<=`]/g; |
|
let m; |
|
while ((m = unexpectedChars.exec(match[0]))) { |
|
emitError(context, 18 /* UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE */, m.index); |
|
} |
|
content = parseTextData(context, match[0].length, 4 /* ATTRIBUTE_VALUE */); |
|
} |
|
return { content, isQuoted, loc: getSelection(context, start) }; |
|
} |
|
function parseInterpolation(context, mode) { |
|
const [open, close] = context.options.delimiters; |
|
const closeIndex = context.source.indexOf(close, open.length); |
|
if (closeIndex === -1) { |
|
emitError(context, 25 /* X_MISSING_INTERPOLATION_END */); |
|
return undefined; |
|
} |
|
const start = getCursor(context); |
|
advanceBy(context, open.length); |
|
const innerStart = getCursor(context); |
|
const innerEnd = getCursor(context); |
|
const rawContentLength = closeIndex - open.length; |
|
const rawContent = context.source.slice(0, rawContentLength); |
|
const preTrimContent = parseTextData(context, rawContentLength, mode); |
|
const content = preTrimContent.trim(); |
|
const startOffset = preTrimContent.indexOf(content); |
|
if (startOffset > 0) { |
|
advancePositionWithMutation(innerStart, rawContent, startOffset); |
|
} |
|
const endOffset = rawContentLength - (preTrimContent.length - content.length - startOffset); |
|
advancePositionWithMutation(innerEnd, rawContent, endOffset); |
|
advanceBy(context, close.length); |
|
return { |
|
type: 5 /* INTERPOLATION */, |
|
content: { |
|
type: 4 /* SIMPLE_EXPRESSION */, |
|
isStatic: false, |
|
// Set `isConstant` to false by default and will decide in transformExpression |
|
constType: 0 /* NOT_CONSTANT */, |
|
content, |
|
loc: getSelection(context, innerStart, innerEnd) |
|
}, |
|
loc: getSelection(context, start) |
|
}; |
|
} |
|
function parseText(context, mode) { |
|
const endTokens = mode === 3 /* CDATA */ ? [']]>'] : ['<', context.options.delimiters[0]]; |
|
let endIndex = context.source.length; |
|
for (let i = 0; i < endTokens.length; i++) { |
|
const index = context.source.indexOf(endTokens[i], 1); |
|
if (index !== -1 && endIndex > index) { |
|
endIndex = index; |
|
} |
|
} |
|
const start = getCursor(context); |
|
const content = parseTextData(context, endIndex, mode); |
|
return { |
|
type: 2 /* TEXT */, |
|
content, |
|
loc: getSelection(context, start) |
|
}; |
|
} |
|
/** |
|
* Get text data with a given length from the current location. |
|
* This translates HTML entities in the text data. |
|
*/ |
|
function parseTextData(context, length, mode) { |
|
const rawText = context.source.slice(0, length); |
|
advanceBy(context, length); |
|
if (mode === 2 /* RAWTEXT */ || |
|
mode === 3 /* CDATA */ || |
|
!rawText.includes('&')) { |
|
return rawText; |
|
} |
|
else { |
|
// DATA or RCDATA containing "&"". Entity decoding required. |
|
return context.options.decodeEntities(rawText, mode === 4 /* ATTRIBUTE_VALUE */); |
|
} |
|
} |
|
function getCursor(context) { |
|
const { column, line, offset } = context; |
|
return { column, line, offset }; |
|
} |
|
function getSelection(context, start, end) { |
|
end = end || getCursor(context); |
|
return { |
|
start, |
|
end, |
|
source: context.originalSource.slice(start.offset, end.offset) |
|
}; |
|
} |
|
function last(xs) { |
|
return xs[xs.length - 1]; |
|
} |
|
function startsWith(source, searchString) { |
|
return source.startsWith(searchString); |
|
} |
|
function advanceBy(context, numberOfCharacters) { |
|
const { source } = context; |
|
advancePositionWithMutation(context, source, numberOfCharacters); |
|
context.source = source.slice(numberOfCharacters); |
|
} |
|
function advanceSpaces(context) { |
|
const match = /^[\t\r\n\f ]+/.exec(context.source); |
|
if (match) { |
|
advanceBy(context, match[0].length); |
|
} |
|
} |
|
function getNewPosition(context, start, numberOfCharacters) { |
|
return advancePositionWithClone(start, context.originalSource.slice(start.offset, numberOfCharacters), numberOfCharacters); |
|
} |
|
function emitError(context, code, offset, loc = getCursor(context)) { |
|
if (offset) { |
|
loc.offset += offset; |
|
loc.column += offset; |
|
} |
|
context.options.onError(createCompilerError(code, { |
|
start: loc, |
|
end: loc, |
|
source: '' |
|
})); |
|
} |
|
function isEnd(context, mode, ancestors) { |
|
const s = context.source; |
|
switch (mode) { |
|
case 0 /* DATA */: |
|
if (startsWith(s, '</')) { |
|
// TODO: probably bad performance |
|
for (let i = ancestors.length - 1; i >= 0; --i) { |
|
if (startsWithEndTagOpen(s, ancestors[i].tag)) { |
|
return true; |
|
} |
|
} |
|
} |
|
break; |
|
case 1 /* RCDATA */: |
|
case 2 /* RAWTEXT */: { |
|
const parent = last(ancestors); |
|
if (parent && startsWithEndTagOpen(s, parent.tag)) { |
|
return true; |
|
} |
|
break; |
|
} |
|
case 3 /* CDATA */: |
|
if (startsWith(s, ']]>')) { |
|
return true; |
|
} |
|
break; |
|
} |
|
return !s; |
|
} |
|
function startsWithEndTagOpen(source, tag) { |
|
return (startsWith(source, '</') && |
|
source.slice(2, 2 + tag.length).toLowerCase() === tag.toLowerCase() && |
|
/[\t\r\n\f />]/.test(source[2 + tag.length] || '>')); |
|
} |
|
|
|
function hoistStatic(root, context) { |
|
walk(root, context, |
|
// Root node is unfortunately non-hoistable due to potential parent |
|
// fallthrough attributes. |
|
isSingleElementRoot(root, root.children[0])); |
|
} |
|
function isSingleElementRoot(root, child) { |
|
const { children } = root; |
|
return (children.length === 1 && |
|
child.type === 1 /* ELEMENT */ && |
|
!isSlotOutlet(child)); |
|
} |
|
function walk(node, context, doNotHoistNode = false) { |
|
const { children } = node; |
|
const originalCount = children.length; |
|
let hoistedCount = 0; |
|
for (let i = 0; i < children.length; i++) { |
|
const child = children[i]; |
|
// only plain elements & text calls are eligible for hoisting. |
|
if (child.type === 1 /* ELEMENT */ && |
|
child.tagType === 0 /* ELEMENT */) { |
|
const constantType = doNotHoistNode |
|
? 0 /* NOT_CONSTANT */ |
|
: getConstantType(child, context); |
|
if (constantType > 0 /* NOT_CONSTANT */) { |
|
if (constantType >= 2 /* CAN_HOIST */) { |
|
child.codegenNode.patchFlag = |
|
-1 /* HOISTED */ + (` /* HOISTED */` ); |
|
child.codegenNode = context.hoist(child.codegenNode); |
|
hoistedCount++; |
|
continue; |
|
} |
|
} |
|
else { |
|
// node may contain dynamic children, but its props may be eligible for |
|
// hoisting. |
|
const codegenNode = child.codegenNode; |
|
if (codegenNode.type === 13 /* VNODE_CALL */) { |
|
const flag = getPatchFlag(codegenNode); |
|
if ((!flag || |
|
flag === 512 /* NEED_PATCH */ || |
|
flag === 1 /* TEXT */) && |
|
getGeneratedPropsConstantType(child, context) >= |
|
2 /* CAN_HOIST */) { |
|
const props = getNodeProps(child); |
|
if (props) { |
|
codegenNode.props = context.hoist(props); |
|
} |
|
} |
|
if (codegenNode.dynamicProps) { |
|
codegenNode.dynamicProps = context.hoist(codegenNode.dynamicProps); |
|
} |
|
} |
|
} |
|
} |
|
else if (child.type === 12 /* TEXT_CALL */ && |
|
getConstantType(child.content, context) >= 2 /* CAN_HOIST */) { |
|
child.codegenNode = context.hoist(child.codegenNode); |
|
hoistedCount++; |
|
} |
|
// walk further |
|
if (child.type === 1 /* ELEMENT */) { |
|
const isComponent = child.tagType === 1 /* COMPONENT */; |
|
if (isComponent) { |
|
context.scopes.vSlot++; |
|
} |
|
walk(child, context); |
|
if (isComponent) { |
|
context.scopes.vSlot--; |
|
} |
|
} |
|
else if (child.type === 11 /* FOR */) { |
|
// Do not hoist v-for single child because it has to be a block |
|
walk(child, context, child.children.length === 1); |
|
} |
|
else if (child.type === 9 /* IF */) { |
|
for (let i = 0; i < child.branches.length; i++) { |
|
// Do not hoist v-if single child because it has to be a block |
|
walk(child.branches[i], context, child.branches[i].children.length === 1); |
|
} |
|
} |
|
} |
|
if (hoistedCount && context.transformHoist) { |
|
context.transformHoist(children, context, node); |
|
} |
|
// all children were hoisted - the entire children array is hoistable. |
|
if (hoistedCount && |
|
hoistedCount === originalCount && |
|
node.type === 1 /* ELEMENT */ && |
|
node.tagType === 0 /* ELEMENT */ && |
|
node.codegenNode && |
|
node.codegenNode.type === 13 /* VNODE_CALL */ && |
|
isArray(node.codegenNode.children)) { |
|
node.codegenNode.children = context.hoist(createArrayExpression(node.codegenNode.children)); |
|
} |
|
} |
|
function getConstantType(node, context) { |
|
const { constantCache } = context; |
|
switch (node.type) { |
|
case 1 /* ELEMENT */: |
|
if (node.tagType !== 0 /* ELEMENT */) { |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
const cached = constantCache.get(node); |
|
if (cached !== undefined) { |
|
return cached; |
|
} |
|
const codegenNode = node.codegenNode; |
|
if (codegenNode.type !== 13 /* VNODE_CALL */) { |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
if (codegenNode.isBlock && |
|
node.tag !== 'svg' && |
|
node.tag !== 'foreignObject') { |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
const flag = getPatchFlag(codegenNode); |
|
if (!flag) { |
|
let returnType = 3 /* CAN_STRINGIFY */; |
|
// Element itself has no patch flag. However we still need to check: |
|
// 1. Even for a node with no patch flag, it is possible for it to contain |
|
// non-hoistable expressions that refers to scope variables, e.g. compiler |
|
// injected keys or cached event handlers. Therefore we need to always |
|
// check the codegenNode's props to be sure. |
|
const generatedPropsType = getGeneratedPropsConstantType(node, context); |
|
if (generatedPropsType === 0 /* NOT_CONSTANT */) { |
|
constantCache.set(node, 0 /* NOT_CONSTANT */); |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
if (generatedPropsType < returnType) { |
|
returnType = generatedPropsType; |
|
} |
|
// 2. its children. |
|
for (let i = 0; i < node.children.length; i++) { |
|
const childType = getConstantType(node.children[i], context); |
|
if (childType === 0 /* NOT_CONSTANT */) { |
|
constantCache.set(node, 0 /* NOT_CONSTANT */); |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
if (childType < returnType) { |
|
returnType = childType; |
|
} |
|
} |
|
// 3. if the type is not already CAN_SKIP_PATCH which is the lowest non-0 |
|
// type, check if any of the props can cause the type to be lowered |
|
// we can skip can_patch because it's guaranteed by the absence of a |
|
// patchFlag. |
|
if (returnType > 1 /* CAN_SKIP_PATCH */) { |
|
for (let i = 0; i < node.props.length; i++) { |
|
const p = node.props[i]; |
|
if (p.type === 7 /* DIRECTIVE */ && p.name === 'bind' && p.exp) { |
|
const expType = getConstantType(p.exp, context); |
|
if (expType === 0 /* NOT_CONSTANT */) { |
|
constantCache.set(node, 0 /* NOT_CONSTANT */); |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
if (expType < returnType) { |
|
returnType = expType; |
|
} |
|
} |
|
} |
|
} |
|
// only svg/foreignObject could be block here, however if they are |
|
// static then they don't need to be blocks since there will be no |
|
// nested updates. |
|
if (codegenNode.isBlock) { |
|
// except set custom directives. |
|
for (let i = 0; i < node.props.length; i++) { |
|
const p = node.props[i]; |
|
if (p.type === 7 /* DIRECTIVE */) { |
|
constantCache.set(node, 0 /* NOT_CONSTANT */); |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
} |
|
context.removeHelper(OPEN_BLOCK); |
|
context.removeHelper(getVNodeBlockHelper(context.inSSR, codegenNode.isComponent)); |
|
codegenNode.isBlock = false; |
|
context.helper(getVNodeHelper(context.inSSR, codegenNode.isComponent)); |
|
} |
|
constantCache.set(node, returnType); |
|
return returnType; |
|
} |
|
else { |
|
constantCache.set(node, 0 /* NOT_CONSTANT */); |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
case 2 /* TEXT */: |
|
case 3 /* COMMENT */: |
|
return 3 /* CAN_STRINGIFY */; |
|
case 9 /* IF */: |
|
case 11 /* FOR */: |
|
case 10 /* IF_BRANCH */: |
|
return 0 /* NOT_CONSTANT */; |
|
case 5 /* INTERPOLATION */: |
|
case 12 /* TEXT_CALL */: |
|
return getConstantType(node.content, context); |
|
case 4 /* SIMPLE_EXPRESSION */: |
|
return node.constType; |
|
case 8 /* COMPOUND_EXPRESSION */: |
|
let returnType = 3 /* CAN_STRINGIFY */; |
|
for (let i = 0; i < node.children.length; i++) { |
|
const child = node.children[i]; |
|
if (isString(child) || isSymbol(child)) { |
|
continue; |
|
} |
|
const childType = getConstantType(child, context); |
|
if (childType === 0 /* NOT_CONSTANT */) { |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
else if (childType < returnType) { |
|
returnType = childType; |
|
} |
|
} |
|
return returnType; |
|
default: |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
} |
|
const allowHoistedHelperSet = new Set([ |
|
NORMALIZE_CLASS, |
|
NORMALIZE_STYLE, |
|
NORMALIZE_PROPS, |
|
GUARD_REACTIVE_PROPS |
|
]); |
|
function getConstantTypeOfHelperCall(value, context) { |
|
if (value.type === 14 /* JS_CALL_EXPRESSION */ && |
|
!isString(value.callee) && |
|
allowHoistedHelperSet.has(value.callee)) { |
|
const arg = value.arguments[0]; |
|
if (arg.type === 4 /* SIMPLE_EXPRESSION */) { |
|
return getConstantType(arg, context); |
|
} |
|
else if (arg.type === 14 /* JS_CALL_EXPRESSION */) { |
|
// in the case of nested helper call, e.g. `normalizeProps(guardReactiveProps(exp))` |
|
return getConstantTypeOfHelperCall(arg, context); |
|
} |
|
} |
|
return 0 /* NOT_CONSTANT */; |
|
} |
|
function getGeneratedPropsConstantType(node, context) { |
|
let returnType = 3 /* CAN_STRINGIFY */; |
|
const props = getNodeProps(node); |
|
if (props && props.type === 15 /* JS_OBJECT_EXPRESSION */) { |
|
const { properties } = props; |
|
for (let i = 0; i < properties.length; i++) { |
|
const { key, value } = properties[i]; |
|
const keyType = getConstantType(key, context); |
|
if (keyType === 0 /* NOT_CONSTANT */) { |
|
return keyType; |
|
} |
|
if (keyType < returnType) { |
|
returnType = keyType; |
|
} |
|
let valueType; |
|
if (value.type === 4 /* SIMPLE_EXPRESSION */) { |
|
valueType = getConstantType(value, context); |
|
} |
|
else if (value.type === 14 /* JS_CALL_EXPRESSION */) { |
|
// some helper calls can be hoisted, |
|
// such as the `normalizeProps` generated by the compiler for pre-normalize class, |
|
// in this case we need to respect the ConstantType of the helper's arguments |
|
valueType = getConstantTypeOfHelperCall(value, context); |
|
} |
|
else { |
|
valueType = 0 /* NOT_CONSTANT */; |
|
} |
|
if (valueType === 0 /* NOT_CONSTANT */) { |
|
return valueType; |
|
} |
|
if (valueType < returnType) { |
|
returnType = valueType; |
|
} |
|
} |
|
} |
|
return returnType; |
|
} |
|
function getNodeProps(node) { |
|
const codegenNode = node.codegenNode; |
|
if (codegenNode.type === 13 /* VNODE_CALL */) { |
|
return codegenNode.props; |
|
} |
|
} |
|
function getPatchFlag(node) { |
|
const flag = node.patchFlag; |
|
return flag ? parseInt(flag, 10) : undefined; |
|
} |
|
|
|
function createTransformContext(root, { filename = '', prefixIdentifiers = false, hoistStatic = false, cacheHandlers = false, nodeTransforms = [], directiveTransforms = {}, transformHoist = null, isBuiltInComponent = NOOP, isCustomElement = NOOP, expressionPlugins = [], scopeId = null, slotted = true, ssr = false, inSSR = false, ssrCssVars = ``, bindingMetadata = EMPTY_OBJ, inline = false, isTS = false, onError = defaultOnError, onWarn = defaultOnWarn, compatConfig }) { |
|
const nameMatch = filename.replace(/\?.*$/, '').match(/([^/\\]+)\.\w+$/); |
|
const context = { |
|
// options |
|
selfName: nameMatch && capitalize(camelize(nameMatch[1])), |
|
prefixIdentifiers, |
|
hoistStatic, |
|
cacheHandlers, |
|
nodeTransforms, |
|
directiveTransforms, |
|
transformHoist, |
|
isBuiltInComponent, |
|
isCustomElement, |
|
expressionPlugins, |
|
scopeId, |
|
slotted, |
|
ssr, |
|
inSSR, |
|
ssrCssVars, |
|
bindingMetadata, |
|
inline, |
|
isTS, |
|
onError, |
|
onWarn, |
|
compatConfig, |
|
// state |
|
root, |
|
helpers: new Map(), |
|
components: new Set(), |
|
directives: new Set(), |
|
hoists: [], |
|
imports: [], |
|
constantCache: new Map(), |
|
temps: 0, |
|
cached: 0, |
|
identifiers: Object.create(null), |
|
scopes: { |
|
vFor: 0, |
|
vSlot: 0, |
|
vPre: 0, |
|
vOnce: 0 |
|
}, |
|
parent: null, |
|
currentNode: root, |
|
childIndex: 0, |
|
inVOnce: false, |
|
// methods |
|
helper(name) { |
|
const count = context.helpers.get(name) || 0; |
|
context.helpers.set(name, count + 1); |
|
return name; |
|
}, |
|
removeHelper(name) { |
|
const count = context.helpers.get(name); |
|
if (count) { |
|
const currentCount = count - 1; |
|
if (!currentCount) { |
|
context.helpers.delete(name); |
|
} |
|
else { |
|
context.helpers.set(name, currentCount); |
|
} |
|
} |
|
}, |
|
helperString(name) { |
|
return `_${helperNameMap[context.helper(name)]}`; |
|
}, |
|
replaceNode(node) { |
|
/* istanbul ignore if */ |
|
{ |
|
if (!context.currentNode) { |
|
throw new Error(`Node being replaced is already removed.`); |
|
} |
|
if (!context.parent) { |
|
throw new Error(`Cannot replace root node.`); |
|
} |
|
} |
|
context.parent.children[context.childIndex] = context.currentNode = node; |
|
}, |
|
removeNode(node) { |
|
if (!context.parent) { |
|
throw new Error(`Cannot remove root node.`); |
|
} |
|
const list = context.parent.children; |
|
const removalIndex = node |
|
? list.indexOf(node) |
|
: context.currentNode |
|
? context.childIndex |
|
: -1; |
|
/* istanbul ignore if */ |
|
if (removalIndex < 0) { |
|
throw new Error(`node being removed is not a child of current parent`); |
|
} |
|
if (!node || node === context.currentNode) { |
|
// current node removed |
|
context.currentNode = null; |
|
context.onNodeRemoved(); |
|
} |
|
else { |
|
// sibling node removed |
|
if (context.childIndex > removalIndex) { |
|
context.childIndex--; |
|
context.onNodeRemoved(); |
|
} |
|
} |
|
context.parent.children.splice(removalIndex, 1); |
|
}, |
|
onNodeRemoved: () => { }, |
|
addIdentifiers(exp) { |
|
}, |
|
removeIdentifiers(exp) { |
|
}, |
|
hoist(exp) { |
|
if (isString(exp)) |
|
exp = createSimpleExpression(exp); |
|
context.hoists.push(exp); |
|
const identifier = createSimpleExpression(`_hoisted_${context.hoists.length}`, false, exp.loc, 2 /* CAN_HOIST */); |
|
identifier.hoisted = exp; |
|
return identifier; |
|
}, |
|
cache(exp, isVNode = false) { |
|
return createCacheExpression(context.cached++, exp, isVNode); |
|
} |
|
}; |
|
{ |
|
context.filters = new Set(); |
|
} |
|
return context; |
|
} |
|
function transform(root, options) { |
|
const context = createTransformContext(root, options); |
|
traverseNode(root, context); |
|
if (options.hoistStatic) { |
|
hoistStatic(root, context); |
|
} |
|
if (!options.ssr) { |
|
createRootCodegen(root, context); |
|
} |
|
// finalize meta information |
|
root.helpers = [...context.helpers.keys()]; |
|
root.components = [...context.components]; |
|
root.directives = [...context.directives]; |
|
root.imports = context.imports; |
|
root.hoists = context.hoists; |
|
root.temps = context.temps; |
|
root.cached = context.cached; |
|
{ |
|
root.filters = [...context.filters]; |
|
} |
|
} |
|
function createRootCodegen(root, context) { |
|
const { helper } = context; |
|
const { children } = root; |
|
if (children.length === 1) { |
|
const child = children[0]; |
|
// if the single child is an element, turn it into a block. |
|
if (isSingleElementRoot(root, child) && child.codegenNode) { |
|
// single element root is never hoisted so codegenNode will never be |
|
// SimpleExpressionNode |
|
const codegenNode = child.codegenNode; |
|
if (codegenNode.type === 13 /* VNODE_CALL */) { |
|
makeBlock(codegenNode, context); |
|
} |
|
root.codegenNode = codegenNode; |
|
} |
|
else { |
|
// - single <slot/>, IfNode, ForNode: already blocks. |
|
// - single text node: always patched. |
|
// root codegen falls through via genNode() |
|
root.codegenNode = child; |
|
} |
|
} |
|
else if (children.length > 1) { |
|
// root has multiple nodes - return a fragment block. |
|
let patchFlag = 64 /* STABLE_FRAGMENT */; |
|
let patchFlagText = PatchFlagNames[64 /* STABLE_FRAGMENT */]; |
|
// check if the fragment actually contains a single valid child with |
|
// the rest being comments |
|
if (children.filter(c => c.type !== 3 /* COMMENT */).length === 1) { |
|
patchFlag |= 2048 /* DEV_ROOT_FRAGMENT */; |
|
patchFlagText += `, ${PatchFlagNames[2048 /* DEV_ROOT_FRAGMENT */]}`; |
|
} |
|
root.codegenNode = createVNodeCall(context, helper(FRAGMENT), undefined, root.children, patchFlag + (` /* ${patchFlagText} */` ), undefined, undefined, true, undefined, false /* isComponent */); |
|
} |
|
else ; |
|
} |
|
function traverseChildren(parent, context) { |
|
let i = 0; |
|
const nodeRemoved = () => { |
|
i--; |
|
}; |
|
for (; i < parent.children.length; i++) { |
|
const child = parent.children[i]; |
|
if (isString(child)) |
|
continue; |
|
context.parent = parent; |
|
context.childIndex = i; |
|
context.onNodeRemoved = nodeRemoved; |
|
traverseNode(child, context); |
|
} |
|
} |
|
function traverseNode(node, context) { |
|
context.currentNode = node; |
|
// apply transform plugins |
|
const { nodeTransforms } = context; |
|
const exitFns = []; |
|
for (let i = 0; i < nodeTransforms.length; i++) { |
|
const onExit = nodeTransforms[i](node, context); |
|
if (onExit) { |
|
if (isArray(onExit)) { |
|
exitFns.push(...onExit); |
|
} |
|
else { |
|
exitFns.push(onExit); |
|
} |
|
} |
|
if (!context.currentNode) { |
|
// node was removed |
|
return; |
|
} |
|
else { |
|
// node may have been replaced |
|
node = context.currentNode; |
|
} |
|
} |
|
switch (node.type) { |
|
case 3 /* COMMENT */: |
|
if (!context.ssr) { |
|
// inject import for the Comment symbol, which is needed for creating |
|
// comment nodes with `createVNode` |
|
context.helper(CREATE_COMMENT); |
|
} |
|
break; |
|
case 5 /* INTERPOLATION */: |
|
// no need to traverse, but we need to inject toString helper |
|
if (!context.ssr) { |
|
context.helper(TO_DISPLAY_STRING); |
|
} |
|
break; |
|
// for container types, further traverse downwards |
|
case 9 /* IF */: |
|
for (let i = 0; i < node.branches.length; i++) { |
|
traverseNode(node.branches[i], context); |
|
} |
|
break; |
|
case 10 /* IF_BRANCH */: |
|
case 11 /* FOR */: |
|
case 1 /* ELEMENT */: |
|
case 0 /* ROOT */: |
|
traverseChildren(node, context); |
|
break; |
|
} |
|
// exit transforms |
|
context.currentNode = node; |
|
let i = exitFns.length; |
|
while (i--) { |
|
exitFns[i](); |
|
} |
|
} |
|
function createStructuralDirectiveTransform(name, fn) { |
|
const matches = isString(name) |
|
? (n) => n === name |
|
: (n) => name.test(n); |
|
return (node, context) => { |
|
if (node.type === 1 /* ELEMENT */) { |
|
const { props } = node; |
|
// structural directive transforms are not concerned with slots |
|
// as they are handled separately in vSlot.ts |
|
if (node.tagType === 3 /* TEMPLATE */ && props.some(isVSlot)) { |
|
return; |
|
} |
|
const exitFns = []; |
|
for (let i = 0; i < props.length; i++) { |
|
const prop = props[i]; |
|
if (prop.type === 7 /* DIRECTIVE */ && matches(prop.name)) { |
|
// structural directives are removed to avoid infinite recursion |
|
// also we remove them *before* applying so that it can further |
|
// traverse itself in case it moves the node around |
|
props.splice(i, 1); |
|
i--; |
|
const onExit = fn(node, prop, context); |
|
if (onExit) |
|
exitFns.push(onExit); |
|
} |
|
} |
|
return exitFns; |
|
} |
|
}; |
|
} |
|
|
|
const PURE_ANNOTATION = `/*#__PURE__*/`; |
|
const aliasHelper = (s) => `${helperNameMap[s]}: _${helperNameMap[s]}`; |
|
function createCodegenContext(ast, { mode = 'function', prefixIdentifiers = mode === 'module', sourceMap = false, filename = `template.vue.html`, scopeId = null, optimizeImports = false, runtimeGlobalName = `Vue`, runtimeModuleName = `vue`, ssrRuntimeModuleName = 'vue/server-renderer', ssr = false, isTS = false, inSSR = false }) { |
|
const context = { |
|
mode, |
|
prefixIdentifiers, |
|
sourceMap, |
|
filename, |
|
scopeId, |
|
optimizeImports, |
|
runtimeGlobalName, |
|
runtimeModuleName, |
|
ssrRuntimeModuleName, |
|
ssr, |
|
isTS, |
|
inSSR, |
|
source: ast.loc.source, |
|
code: ``, |
|
column: 1, |
|
line: 1, |
|
offset: 0, |
|
indentLevel: 0, |
|
pure: false, |
|
map: undefined, |
|
helper(key) { |
|
return `_${helperNameMap[key]}`; |
|
}, |
|
push(code, node) { |
|
context.code += code; |
|
}, |
|
indent() { |
|
newline(++context.indentLevel); |
|
}, |
|
deindent(withoutNewLine = false) { |
|
if (withoutNewLine) { |
|
--context.indentLevel; |
|
} |
|
else { |
|
newline(--context.indentLevel); |
|
} |
|
}, |
|
newline() { |
|
newline(context.indentLevel); |
|
} |
|
}; |
|
function newline(n) { |
|
context.push('\n' + ` `.repeat(n)); |
|
} |
|
return context; |
|
} |
|
function generate(ast, options = {}) { |
|
const context = createCodegenContext(ast, options); |
|
if (options.onContextCreated) |
|
options.onContextCreated(context); |
|
const { mode, push, prefixIdentifiers, indent, deindent, newline, scopeId, ssr } = context; |
|
const hasHelpers = ast.helpers.length > 0; |
|
const useWithBlock = !prefixIdentifiers && mode !== 'module'; |
|
// preambles |
|
// in setup() inline mode, the preamble is generated in a sub context |
|
// and returned separately. |
|
const preambleContext = context; |
|
{ |
|
genFunctionPreamble(ast, preambleContext); |
|
} |
|
// enter render function |
|
const functionName = ssr ? `ssrRender` : `render`; |
|
const args = ssr ? ['_ctx', '_push', '_parent', '_attrs'] : ['_ctx', '_cache']; |
|
const signature = args.join(', '); |
|
{ |
|
push(`function ${functionName}(${signature}) {`); |
|
} |
|
indent(); |
|
if (useWithBlock) { |
|
push(`with (_ctx) {`); |
|
indent(); |
|
// function mode const declarations should be inside with block |
|
// also they should be renamed to avoid collision with user properties |
|
if (hasHelpers) { |
|
push(`const { ${ast.helpers.map(aliasHelper).join(', ')} } = _Vue`); |
|
push(`\n`); |
|
newline(); |
|
} |
|
} |
|
// generate asset resolution statements |
|
if (ast.components.length) { |
|
genAssets(ast.components, 'component', context); |
|
if (ast.directives.length || ast.temps > 0) { |
|
newline(); |
|
} |
|
} |
|
if (ast.directives.length) { |
|
genAssets(ast.directives, 'directive', context); |
|
if (ast.temps > 0) { |
|
newline(); |
|
} |
|
} |
|
if (ast.filters && ast.filters.length) { |
|
newline(); |
|
genAssets(ast.filters, 'filter', context); |
|
newline(); |
|
} |
|
if (ast.temps > 0) { |
|
push(`let `); |
|
for (let i = 0; i < ast.temps; i++) { |
|
push(`${i > 0 ? `, ` : ``}_temp${i}`); |
|
} |
|
} |
|
if (ast.components.length || ast.directives.length || ast.temps) { |
|
push(`\n`); |
|
newline(); |
|
} |
|
// generate the VNode tree expression |
|
if (!ssr) { |
|
push(`return `); |
|
} |
|
if (ast.codegenNode) { |
|
genNode(ast.codegenNode, context); |
|
} |
|
else { |
|
push(`null`); |
|
} |
|
if (useWithBlock) { |
|
deindent(); |
|
push(`}`); |
|
} |
|
deindent(); |
|
push(`}`); |
|
return { |
|
ast, |
|
code: context.code, |
|
preamble: ``, |
|
// SourceMapGenerator does have toJSON() method but it's not in the types |
|
map: context.map ? context.map.toJSON() : undefined |
|
}; |
|
} |
|
function genFunctionPreamble(ast, context) { |
|
const { ssr, prefixIdentifiers, push, newline, runtimeModuleName, runtimeGlobalName, ssrRuntimeModuleName } = context; |
|
const VueBinding = runtimeGlobalName; |
|
// Generate const declaration for helpers |
|
// In prefix mode, we place the const declaration at top so it's done |
|
// only once; But if we not prefixing, we place the declaration inside the |
|
// with block so it doesn't incur the `in` check cost for every helper access. |
|
if (ast.helpers.length > 0) { |
|
{ |
|
// "with" mode. |
|
// save Vue in a separate variable to avoid collision |
|
push(`const _Vue = ${VueBinding}\n`); |
|
// in "with" mode, helpers are declared inside the with block to avoid |
|
// has check cost, but hoists are lifted out of the function - we need |
|
// to provide the helper here. |
|
if (ast.hoists.length) { |
|
const staticHelpers = [ |
|
CREATE_VNODE, |
|
CREATE_ELEMENT_VNODE, |
|
CREATE_COMMENT, |
|
CREATE_TEXT, |
|
CREATE_STATIC |
|
] |
|
.filter(helper => ast.helpers.includes(helper)) |
|
.map(aliasHelper) |
|
.join(', '); |
|
push(`const { ${staticHelpers} } = _Vue\n`); |
|
} |
|
} |
|
} |
|
genHoists(ast.hoists, context); |
|
newline(); |
|
push(`return `); |
|
} |
|
function genAssets(assets, type, { helper, push, newline, isTS }) { |
|
const resolver = helper(type === 'filter' |
|
? RESOLVE_FILTER |
|
: type === 'component' |
|
? RESOLVE_COMPONENT |
|
: RESOLVE_DIRECTIVE); |
|
for (let i = 0; i < assets.length; i++) { |
|
let id = assets[i]; |
|
// potential component implicit self-reference inferred from SFC filename |
|
const maybeSelfReference = id.endsWith('__self'); |
|
if (maybeSelfReference) { |
|
id = id.slice(0, -6); |
|
} |
|
push(`const ${toValidAssetId(id, type)} = ${resolver}(${JSON.stringify(id)}${maybeSelfReference ? `, true` : ``})${isTS ? `!` : ``}`); |
|
if (i < assets.length - 1) { |
|
newline(); |
|
} |
|
} |
|
} |
|
function genHoists(hoists, context) { |
|
if (!hoists.length) { |
|
return; |
|
} |
|
context.pure = true; |
|
const { push, newline, helper, scopeId, mode } = context; |
|
newline(); |
|
for (let i = 0; i < hoists.length; i++) { |
|
const exp = hoists[i]; |
|
if (exp) { |
|
push(`const _hoisted_${i + 1} = ${``}`); |
|
genNode(exp, context); |
|
newline(); |
|
} |
|
} |
|
context.pure = false; |
|
} |
|
function isText$1(n) { |
|
return (isString(n) || |
|
n.type === 4 /* SIMPLE_EXPRESSION */ || |
|
n.type === 2 /* TEXT */ || |
|
n.type === 5 /* INTERPOLATION */ || |
|
n.type === 8 /* COMPOUND_EXPRESSION */); |
|
} |
|
function genNodeListAsArray(nodes, context) { |
|
const multilines = nodes.length > 3 || |
|
(nodes.some(n => isArray(n) || !isText$1(n))); |
|
context.push(`[`); |
|
multilines && context.indent(); |
|
genNodeList(nodes, context, multilines); |
|
multilines && context.deindent(); |
|
context.push(`]`); |
|
} |
|
function genNodeList(nodes, context, multilines = false, comma = true) { |
|
const { push, newline } = context; |
|
for (let i = 0; i < nodes.length; i++) { |
|
const node = nodes[i]; |
|
if (isString(node)) { |
|
push(node); |
|
} |
|
else if (isArray(node)) { |
|
genNodeListAsArray(node, context); |
|
} |
|
else { |
|
genNode(node, context); |
|
} |
|
if (i < nodes.length - 1) { |
|
if (multilines) { |
|
comma && push(','); |
|
newline(); |
|
} |
|
else { |
|
comma && push(', '); |
|
} |
|
} |
|
} |
|
} |
|
function genNode(node, context) { |
|
if (isString(node)) { |
|
context.push(node); |
|
return; |
|
} |
|
if (isSymbol(node)) { |
|
context.push(context.helper(node)); |
|
return; |
|
} |
|
switch (node.type) { |
|
case 1 /* ELEMENT */: |
|
case 9 /* IF */: |
|
case 11 /* FOR */: |
|
assert(node.codegenNode != null, `Codegen node is missing for element/if/for node. ` + |
|
`Apply appropriate transforms first.`); |
|
genNode(node.codegenNode, context); |
|
break; |
|
case 2 /* TEXT */: |
|
genText(node, context); |
|
break; |
|
case 4 /* SIMPLE_EXPRESSION */: |
|
genExpression(node, context); |
|
break; |
|
case 5 /* INTERPOLATION */: |
|
genInterpolation(node, context); |
|
break; |
|
case 12 /* TEXT_CALL */: |
|
genNode(node.codegenNode, context); |
|
break; |
|
case 8 /* COMPOUND_EXPRESSION */: |
|
genCompoundExpression(node, context); |
|
break; |
|
case 3 /* COMMENT */: |
|
genComment(node, context); |
|
break; |
|
case 13 /* VNODE_CALL */: |
|
genVNodeCall(node, context); |
|
break; |
|
case 14 /* JS_CALL_EXPRESSION */: |
|
genCallExpression(node, context); |
|
break; |
|
case 15 /* JS_OBJECT_EXPRESSION */: |
|
genObjectExpression(node, context); |
|
break; |
|
case 17 /* JS_ARRAY_EXPRESSION */: |
|
genArrayExpression(node, context); |
|
break; |
|
case 18 /* JS_FUNCTION_EXPRESSION */: |
|
genFunctionExpression(node, context); |
|
break; |
|
case 19 /* JS_CONDITIONAL_EXPRESSION */: |
|
genConditionalExpression(node, context); |
|
break; |
|
case 20 /* JS_CACHE_EXPRESSION */: |
|
genCacheExpression(node, context); |
|
break; |
|
case 21 /* JS_BLOCK_STATEMENT */: |
|
genNodeList(node.body, context, true, false); |
|
break; |
|
// SSR only types |
|
case 22 /* JS_TEMPLATE_LITERAL */: |
|
break; |
|
case 23 /* JS_IF_STATEMENT */: |
|
break; |
|
case 24 /* JS_ASSIGNMENT_EXPRESSION */: |
|
break; |
|
case 25 /* JS_SEQUENCE_EXPRESSION */: |
|
break; |
|
case 26 /* JS_RETURN_STATEMENT */: |
|
break; |
|
/* istanbul ignore next */ |
|
case 10 /* IF_BRANCH */: |
|
// noop |
|
break; |
|
default: |
|
{ |
|
assert(false, `unhandled codegen node type: ${node.type}`); |
|
// make sure we exhaust all possible types |
|
const exhaustiveCheck = node; |
|
return exhaustiveCheck; |
|
} |
|
} |
|
} |
|
function genText(node, context) { |
|
context.push(JSON.stringify(node.content), node); |
|
} |
|
function genExpression(node, context) { |
|
const { content, isStatic } = node; |
|
context.push(isStatic ? JSON.stringify(content) : content, node); |
|
} |
|
function genInterpolation(node, context) { |
|
const { push, helper, pure } = context; |
|
if (pure) |
|
push(PURE_ANNOTATION); |
|
push(`${helper(TO_DISPLAY_STRING)}(`); |
|
genNode(node.content, context); |
|
push(`)`); |
|
} |
|
function genCompoundExpression(node, context) { |
|
for (let i = 0; i < node.children.length; i++) { |
|
const child = node.children[i]; |
|
if (isString(child)) { |
|
context.push(child); |
|
} |
|
else { |
|
genNode(child, context); |
|
} |
|
} |
|
} |
|
function genExpressionAsPropertyKey(node, context) { |
|
const { push } = context; |
|
if (node.type === 8 /* COMPOUND_EXPRESSION */) { |
|
push(`[`); |
|
genCompoundExpression(node, context); |
|
push(`]`); |
|
} |
|
else if (node.isStatic) { |
|
// only quote keys if necessary |
|
const text = isSimpleIdentifier(node.content) |
|
? node.content |
|
: JSON.stringify(node.content); |
|
push(text, node); |
|
} |
|
else { |
|
push(`[${node.content}]`, node); |
|
} |
|
} |
|
function genComment(node, context) { |
|
const { push, helper, pure } = context; |
|
if (pure) { |
|
push(PURE_ANNOTATION); |
|
} |
|
push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node); |
|
} |
|
function genVNodeCall(node, context) { |
|
const { push, helper, pure } = context; |
|
const { tag, props, children, patchFlag, dynamicProps, directives, isBlock, disableTracking, isComponent } = node; |
|
if (directives) { |
|
push(helper(WITH_DIRECTIVES) + `(`); |
|
} |
|
if (isBlock) { |
|
push(`(${helper(OPEN_BLOCK)}(${disableTracking ? `true` : ``}), `); |
|
} |
|
if (pure) { |
|
push(PURE_ANNOTATION); |
|
} |
|
const callHelper = isBlock |
|
? getVNodeBlockHelper(context.inSSR, isComponent) |
|
: getVNodeHelper(context.inSSR, isComponent); |
|
push(helper(callHelper) + `(`, node); |
|
genNodeList(genNullableArgs([tag, props, children, patchFlag, dynamicProps]), context); |
|
push(`)`); |
|
if (isBlock) { |
|
push(`)`); |
|
} |
|
if (directives) { |
|
push(`, `); |
|
genNode(directives, context); |
|
push(`)`); |
|
} |
|
} |
|
function genNullableArgs(args) { |
|
let i = args.length; |
|
while (i--) { |
|
if (args[i] != null) |
|
break; |
|
} |
|
return args.slice(0, i + 1).map(arg => arg || `null`); |
|
} |
|
// JavaScript |
|
function genCallExpression(node, context) { |
|
const { push, helper, pure } = context; |
|
const callee = isString(node.callee) ? node.callee : helper(node.callee); |
|
if (pure) { |
|
push(PURE_ANNOTATION); |
|
} |
|
push(callee + `(`, node); |
|
genNodeList(node.arguments, context); |
|
push(`)`); |
|
} |
|
function genObjectExpression(node, context) { |
|
const { push, indent, deindent, newline } = context; |
|
const { properties } = node; |
|
if (!properties.length) { |
|
push(`{}`, node); |
|
return; |
|
} |
|
const multilines = properties.length > 1 || |
|
(properties.some(p => p.value.type !== 4 /* SIMPLE_EXPRESSION */)); |
|
push(multilines ? `{` : `{ `); |
|
multilines && indent(); |
|
for (let i = 0; i < properties.length; i++) { |
|
const { key, value } = properties[i]; |
|
// key |
|
genExpressionAsPropertyKey(key, context); |
|
push(`: `); |
|
// value |
|
genNode(value, context); |
|
if (i < properties.length - 1) { |
|
// will only reach this if it's multilines |
|
push(`,`); |
|
newline(); |
|
} |
|
} |
|
multilines && deindent(); |
|
push(multilines ? `}` : ` }`); |
|
} |
|
function genArrayExpression(node, context) { |
|
genNodeListAsArray(node.elements, context); |
|
} |
|
function genFunctionExpression(node, context) { |
|
const { push, indent, deindent } = context; |
|
const { params, returns, body, newline, isSlot } = node; |
|
if (isSlot) { |
|
// wrap slot functions with owner context |
|
push(`_${helperNameMap[WITH_CTX]}(`); |
|
} |
|
push(`(`, node); |
|
if (isArray(params)) { |
|
genNodeList(params, context); |
|
} |
|
else if (params) { |
|
genNode(params, context); |
|
} |
|
push(`) => `); |
|
if (newline || body) { |
|
push(`{`); |
|
indent(); |
|
} |
|
if (returns) { |
|
if (newline) { |
|
push(`return `); |
|
} |
|
if (isArray(returns)) { |
|
genNodeListAsArray(returns, context); |
|
} |
|
else { |
|
genNode(returns, context); |
|
} |
|
} |
|
else if (body) { |
|
genNode(body, context); |
|
} |
|
if (newline || body) { |
|
deindent(); |
|
push(`}`); |
|
} |
|
if (isSlot) { |
|
if (node.isNonScopedSlot) { |
|
push(`, undefined, true`); |
|
} |
|
push(`)`); |
|
} |
|
} |
|
function genConditionalExpression(node, context) { |
|
const { test, consequent, alternate, newline: needNewline } = node; |
|
const { push, indent, deindent, newline } = context; |
|
if (test.type === 4 /* SIMPLE_EXPRESSION */) { |
|
const needsParens = !isSimpleIdentifier(test.content); |
|
needsParens && push(`(`); |
|
genExpression(test, context); |
|
needsParens && push(`)`); |
|
} |
|
else { |
|
push(`(`); |
|
genNode(test, context); |
|
push(`)`); |
|
} |
|
needNewline && indent(); |
|
context.indentLevel++; |
|
needNewline || push(` `); |
|
push(`? `); |
|
genNode(consequent, context); |
|
context.indentLevel--; |
|
needNewline && newline(); |
|
needNewline || push(` `); |
|
push(`: `); |
|
const isNested = alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */; |
|
if (!isNested) { |
|
context.indentLevel++; |
|
} |
|
genNode(alternate, context); |
|
if (!isNested) { |
|
context.indentLevel--; |
|
} |
|
needNewline && deindent(true /* without newline */); |
|
} |
|
function genCacheExpression(node, context) { |
|
const { push, helper, indent, deindent, newline } = context; |
|
push(`_cache[${node.index}] || (`); |
|
if (node.isVNode) { |
|
indent(); |
|
push(`${helper(SET_BLOCK_TRACKING)}(-1),`); |
|
newline(); |
|
} |
|
push(`_cache[${node.index}] = `); |
|
genNode(node.value, context); |
|
if (node.isVNode) { |
|
push(`,`); |
|
newline(); |
|
push(`${helper(SET_BLOCK_TRACKING)}(1),`); |
|
newline(); |
|
push(`_cache[${node.index}]`); |
|
deindent(); |
|
} |
|
push(`)`); |
|
} |
|
|
|
function walkIdentifiers(root, onIdentifier, includeAll = false, parentStack = [], knownIds = Object.create(null)) { |
|
{ |
|
return; |
|
} |
|
} |
|
function isReferencedIdentifier(id, parent, parentStack) { |
|
{ |
|
return false; |
|
} |
|
} |
|
function isInDestructureAssignment(parent, parentStack) { |
|
if (parent && |
|
(parent.type === 'ObjectProperty' || parent.type === 'ArrayPattern')) { |
|
let i = parentStack.length; |
|
while (i--) { |
|
const p = parentStack[i]; |
|
if (p.type === 'AssignmentExpression') { |
|
return true; |
|
} |
|
else if (p.type !== 'ObjectProperty' && !p.type.endsWith('Pattern')) { |
|
break; |
|
} |
|
} |
|
} |
|
return false; |
|
} |
|
function walkFunctionParams(node, onIdent) { |
|
for (const p of node.params) { |
|
for (const id of extractIdentifiers(p)) { |
|
onIdent(id); |
|
} |
|
} |
|
} |
|
function walkBlockDeclarations(block, onIdent) { |
|
for (const stmt of block.body) { |
|
if (stmt.type === 'VariableDeclaration') { |
|
if (stmt.declare) |
|
continue; |
|
for (const decl of stmt.declarations) { |
|
for (const id of extractIdentifiers(decl.id)) { |
|
onIdent(id); |
|
} |
|
} |
|
} |
|
else if (stmt.type === 'FunctionDeclaration' || |
|
stmt.type === 'ClassDeclaration') { |
|
if (stmt.declare || !stmt.id) |
|
continue; |
|
onIdent(stmt.id); |
|
} |
|
} |
|
} |
|
function extractIdentifiers(param, nodes = []) { |
|
switch (param.type) { |
|
case 'Identifier': |
|
nodes.push(param); |
|
break; |
|
case 'MemberExpression': |
|
let object = param; |
|
while (object.type === 'MemberExpression') { |
|
object = object.object; |
|
} |
|
nodes.push(object); |
|
break; |
|
case 'ObjectPattern': |
|
for (const prop of param.properties) { |
|
if (prop.type === 'RestElement') { |
|
extractIdentifiers(prop.argument, nodes); |
|
} |
|
else { |
|
extractIdentifiers(prop.value, nodes); |
|
} |
|
} |
|
break; |
|
case 'ArrayPattern': |
|
param.elements.forEach(element => { |
|
if (element) |
|
extractIdentifiers(element, nodes); |
|
}); |
|
break; |
|
case 'RestElement': |
|
extractIdentifiers(param.argument, nodes); |
|
break; |
|
case 'AssignmentPattern': |
|
extractIdentifiers(param.left, nodes); |
|
break; |
|
} |
|
return nodes; |
|
} |
|
const isFunctionType = (node) => { |
|
return /Function(?:Expression|Declaration)$|Method$/.test(node.type); |
|
}; |
|
const isStaticProperty = (node) => node && |
|
(node.type === 'ObjectProperty' || node.type === 'ObjectMethod') && |
|
!node.computed; |
|
const isStaticPropertyKey = (node, parent) => isStaticProperty(parent) && parent.key === node; |
|
|
|
// these keywords should not appear inside expressions, but operators like |
|
// typeof, instanceof and in are allowed |
|
const prohibitedKeywordRE = new RegExp('\\b' + |
|
('do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' + |
|
'super,throw,while,yield,delete,export,import,return,switch,default,' + |
|
'extends,finally,continue,debugger,function,arguments,typeof,void') |
|
.split(',') |
|
.join('\\b|\\b') + |
|
'\\b'); |
|
// strip strings in expressions |
|
const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g; |
|
/** |
|
* Validate a non-prefixed expression. |
|
* This is only called when using the in-browser runtime compiler since it |
|
* doesn't prefix expressions. |
|
*/ |
|
function validateBrowserExpression(node, context, asParams = false, asRawStatements = false) { |
|
const exp = node.content; |
|
// empty expressions are validated per-directive since some directives |
|
// do allow empty expressions. |
|
if (!exp.trim()) { |
|
return; |
|
} |
|
try { |
|
new Function(asRawStatements |
|
? ` ${exp} ` |
|
: `return ${asParams ? `(${exp}) => {}` : `(${exp})`}`); |
|
} |
|
catch (e) { |
|
let message = e.message; |
|
const keywordMatch = exp |
|
.replace(stripStringRE, '') |
|
.match(prohibitedKeywordRE); |
|
if (keywordMatch) { |
|
message = `avoid using JavaScript keyword as property name: "${keywordMatch[0]}"`; |
|
} |
|
context.onError(createCompilerError(44 /* X_INVALID_EXPRESSION */, node.loc, undefined, message)); |
|
} |
|
} |
|
|
|
const transformExpression = (node, context) => { |
|
if (node.type === 5 /* INTERPOLATION */) { |
|
node.content = processExpression(node.content, context); |
|
} |
|
else if (node.type === 1 /* ELEMENT */) { |
|
// handle directives on element |
|
for (let i = 0; i < node.props.length; i++) { |
|
const dir = node.props[i]; |
|
// do not process for v-on & v-for since they are special handled |
|
if (dir.type === 7 /* DIRECTIVE */ && dir.name !== 'for') { |
|
const exp = dir.exp; |
|
const arg = dir.arg; |
|
// do not process exp if this is v-on:arg - we need special handling |
|
// for wrapping inline statements. |
|
if (exp && |
|
exp.type === 4 /* SIMPLE_EXPRESSION */ && |
|
!(dir.name === 'on' && arg)) { |
|
dir.exp = processExpression(exp, context, |
|
// slot args must be processed as function params |
|
dir.name === 'slot'); |
|
} |
|
if (arg && arg.type === 4 /* SIMPLE_EXPRESSION */ && !arg.isStatic) { |
|
dir.arg = processExpression(arg, context); |
|
} |
|
} |
|
} |
|
} |
|
}; |
|
// Important: since this function uses Node.js only dependencies, it should |
|
// always be used with a leading !true check so that it can be |
|
// tree-shaken from the browser build. |
|
function processExpression(node, context, |
|
// some expressions like v-slot props & v-for aliases should be parsed as |
|
// function params |
|
asParams = false, |
|
// v-on handler values may contain multiple statements |
|
asRawStatements = false, localVars = Object.create(context.identifiers)) { |
|
{ |
|
{ |
|
// simple in-browser validation (same logic in 2.x) |
|
validateBrowserExpression(node, context, asParams, asRawStatements); |
|
} |
|
return node; |
|
} |
|
} |
|
|
|
const transformIf = createStructuralDirectiveTransform(/^(if|else|else-if)$/, (node, dir, context) => { |
|
return processIf(node, dir, context, (ifNode, branch, isRoot) => { |
|
// #1587: We need to dynamically increment the key based on the current |
|
// node's sibling nodes, since chained v-if/else branches are |
|
// rendered at the same depth |
|
const siblings = context.parent.children; |
|
let i = siblings.indexOf(ifNode); |
|
let key = 0; |
|
while (i-- >= 0) { |
|
const sibling = siblings[i]; |
|
if (sibling && sibling.type === 9 /* IF */) { |
|
key += sibling.branches.length; |
|
} |
|
} |
|
// Exit callback. Complete the codegenNode when all children have been |
|
// transformed. |
|
return () => { |
|
if (isRoot) { |
|
ifNode.codegenNode = createCodegenNodeForBranch(branch, key, context); |
|
} |
|
else { |
|
// attach this branch's codegen node to the v-if root. |
|
const parentCondition = getParentCondition(ifNode.codegenNode); |
|
parentCondition.alternate = createCodegenNodeForBranch(branch, key + ifNode.branches.length - 1, context); |
|
} |
|
}; |
|
}); |
|
}); |
|
// target-agnostic transform used for both Client and SSR |
|
function processIf(node, dir, context, processCodegen) { |
|
if (dir.name !== 'else' && |
|
(!dir.exp || !dir.exp.content.trim())) { |
|
const loc = dir.exp ? dir.exp.loc : node.loc; |
|
context.onError(createCompilerError(28 /* X_V_IF_NO_EXPRESSION */, dir.loc)); |
|
dir.exp = createSimpleExpression(`true`, false, loc); |
|
} |
|
if (dir.exp) { |
|
validateBrowserExpression(dir.exp, context); |
|
} |
|
if (dir.name === 'if') { |
|
const branch = createIfBranch(node, dir); |
|
const ifNode = { |
|
type: 9 /* IF */, |
|
loc: node.loc, |
|
branches: [branch] |
|
}; |
|
context.replaceNode(ifNode); |
|
if (processCodegen) { |
|
return processCodegen(ifNode, branch, true); |
|
} |
|
} |
|
else { |
|
// locate the adjacent v-if |
|
const siblings = context.parent.children; |
|
const comments = []; |
|
let i = siblings.indexOf(node); |
|
while (i-- >= -1) { |
|
const sibling = siblings[i]; |
|
if (sibling && sibling.type === 3 /* COMMENT */) { |
|
context.removeNode(sibling); |
|
comments.unshift(sibling); |
|
continue; |
|
} |
|
if (sibling && |
|
sibling.type === 2 /* TEXT */ && |
|
!sibling.content.trim().length) { |
|
context.removeNode(sibling); |
|
continue; |
|
} |
|
if (sibling && sibling.type === 9 /* IF */) { |
|
// Check if v-else was followed by v-else-if |
|
if (dir.name === 'else-if' && |
|
sibling.branches[sibling.branches.length - 1].condition === undefined) { |
|
context.onError(createCompilerError(30 /* X_V_ELSE_NO_ADJACENT_IF */, node.loc)); |
|
} |
|
// move the node to the if node's branches |
|
context.removeNode(); |
|
const branch = createIfBranch(node, dir); |
|
if (comments.length && |
|
// #3619 ignore comments if the v-if is direct child of <transition> |
|
!(context.parent && |
|
context.parent.type === 1 /* ELEMENT */ && |
|
isBuiltInType(context.parent.tag, 'transition'))) { |
|
branch.children = [...comments, ...branch.children]; |
|
} |
|
// check if user is forcing same key on different branches |
|
{ |
|
const key = branch.userKey; |
|
if (key) { |
|
sibling.branches.forEach(({ userKey }) => { |
|
if (isSameKey(userKey, key)) { |
|
context.onError(createCompilerError(29 /* X_V_IF_SAME_KEY */, branch.userKey.loc)); |
|
} |
|
}); |
|
} |
|
} |
|
sibling.branches.push(branch); |
|
const onExit = processCodegen && processCodegen(sibling, branch, false); |
|
// since the branch was removed, it will not be traversed. |
|
// make sure to traverse here. |
|
traverseNode(branch, context); |
|
// call on exit |
|
if (onExit) |
|
onExit(); |
|
// make sure to reset currentNode after traversal to indicate this |
|
// node has been removed. |
|
context.currentNode = null; |
|
} |
|
else { |
|
context.onError(createCompilerError(30 /* X_V_ELSE_NO_ADJACENT_IF */, node.loc)); |
|
} |
|
break; |
|
} |
|
} |
|
} |
|
function createIfBranch(node, dir) { |
|
const isTemplateIf = node.tagType === 3 /* TEMPLATE */; |
|
return { |
|
type: 10 /* IF_BRANCH */, |
|
loc: node.loc, |
|
condition: dir.name === 'else' ? undefined : dir.exp, |
|
children: isTemplateIf && !findDir(node, 'for') ? node.children : [node], |
|
userKey: findProp(node, `key`), |
|
isTemplateIf |
|
}; |
|
} |
|
function createCodegenNodeForBranch(branch, keyIndex, context) { |
|
if (branch.condition) { |
|
return createConditionalExpression(branch.condition, createChildrenCodegenNode(branch, keyIndex, context), |
|
// make sure to pass in asBlock: true so that the comment node call |
|
// closes the current block. |
|
createCallExpression(context.helper(CREATE_COMMENT), [ |
|
'"v-if"' , |
|
'true' |
|
])); |
|
} |
|
else { |
|
return createChildrenCodegenNode(branch, keyIndex, context); |
|
} |
|
} |
|
function createChildrenCodegenNode(branch, keyIndex, context) { |
|
const { helper } = context; |
|
const keyProperty = createObjectProperty(`key`, createSimpleExpression(`${keyIndex}`, false, locStub, 2 /* CAN_HOIST */)); |
|
const { children } = branch; |
|
const firstChild = children[0]; |
|
const needFragmentWrapper = children.length !== 1 || firstChild.type !== 1 /* ELEMENT */; |
|
if (needFragmentWrapper) { |
|
if (children.length === 1 && firstChild.type === 11 /* FOR */) { |
|
// optimize away nested fragments when child is a ForNode |
|
const vnodeCall = firstChild.codegenNode; |
|
injectProp(vnodeCall, keyProperty, context); |
|
return vnodeCall; |
|
} |
|
else { |
|
let patchFlag = 64 /* STABLE_FRAGMENT */; |
|
let patchFlagText = PatchFlagNames[64 /* STABLE_FRAGMENT */]; |
|
// check if the fragment actually contains a single valid child with |
|
// the rest being comments |
|
if (!branch.isTemplateIf && |
|
children.filter(c => c.type !== 3 /* COMMENT */).length === 1) { |
|
patchFlag |= 2048 /* DEV_ROOT_FRAGMENT */; |
|
patchFlagText += `, ${PatchFlagNames[2048 /* DEV_ROOT_FRAGMENT */]}`; |
|
} |
|
return createVNodeCall(context, helper(FRAGMENT), createObjectExpression([keyProperty]), children, patchFlag + (` /* ${patchFlagText} */` ), undefined, undefined, true, false, false /* isComponent */, branch.loc); |
|
} |
|
} |
|
else { |
|
const ret = firstChild.codegenNode; |
|
const vnodeCall = getMemoedVNodeCall(ret); |
|
// Change createVNode to createBlock. |
|
if (vnodeCall.type === 13 /* VNODE_CALL */) { |
|
makeBlock(vnodeCall, context); |
|
} |
|
// inject branch key |
|
injectProp(vnodeCall, keyProperty, context); |
|
return ret; |
|
} |
|
} |
|
function isSameKey(a, b) { |
|
if (!a || a.type !== b.type) { |
|
return false; |
|
} |
|
if (a.type === 6 /* ATTRIBUTE */) { |
|
if (a.value.content !== b.value.content) { |
|
return false; |
|
} |
|
} |
|
else { |
|
// directive |
|
const exp = a.exp; |
|
const branchExp = b.exp; |
|
if (exp.type !== branchExp.type) { |
|
return false; |
|
} |
|
if (exp.type !== 4 /* SIMPLE_EXPRESSION */ || |
|
exp.isStatic !== branchExp.isStatic || |
|
exp.content !== branchExp.content) { |
|
return false; |
|
} |
|
} |
|
return true; |
|
} |
|
function getParentCondition(node) { |
|
while (true) { |
|
if (node.type === 19 /* JS_CONDITIONAL_EXPRESSION */) { |
|
if (node.alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */) { |
|
node = node.alternate; |
|
} |
|
else { |
|
return node; |
|
} |
|
} |
|
else if (node.type === 20 /* JS_CACHE_EXPRESSION */) { |
|
node = node.value; |
|
} |
|
} |
|
} |
|
|
|
const transformFor = createStructuralDirectiveTransform('for', (node, dir, context) => { |
|
const { helper, removeHelper } = context; |
|
return processFor(node, dir, context, forNode => { |
|
// create the loop render function expression now, and add the |
|
// iterator on exit after all children have been traversed |
|
const renderExp = createCallExpression(helper(RENDER_LIST), [ |
|
forNode.source |
|
]); |
|
const isTemplate = isTemplateNode(node); |
|
const memo = findDir(node, 'memo'); |
|
const keyProp = findProp(node, `key`); |
|
const keyExp = keyProp && |
|
(keyProp.type === 6 /* ATTRIBUTE */ |
|
? createSimpleExpression(keyProp.value.content, true) |
|
: keyProp.exp); |
|
const keyProperty = keyProp ? createObjectProperty(`key`, keyExp) : null; |
|
const isStableFragment = forNode.source.type === 4 /* SIMPLE_EXPRESSION */ && |
|
forNode.source.constType > 0 /* NOT_CONSTANT */; |
|
const fragmentFlag = isStableFragment |
|
? 64 /* STABLE_FRAGMENT */ |
|
: keyProp |
|
? 128 /* KEYED_FRAGMENT */ |
|
: 256 /* UNKEYED_FRAGMENT */; |
|
forNode.codegenNode = createVNodeCall(context, helper(FRAGMENT), undefined, renderExp, fragmentFlag + |
|
(` /* ${PatchFlagNames[fragmentFlag]} */` ), undefined, undefined, true /* isBlock */, !isStableFragment /* disableTracking */, false /* isComponent */, node.loc); |
|
return () => { |
|
// finish the codegen now that all children have been traversed |
|
let childBlock; |
|
const { children } = forNode; |
|
// check <template v-for> key placement |
|
if (isTemplate) { |
|
node.children.some(c => { |
|
if (c.type === 1 /* ELEMENT */) { |
|
const key = findProp(c, 'key'); |
|
if (key) { |
|
context.onError(createCompilerError(33 /* X_V_FOR_TEMPLATE_KEY_PLACEMENT */, key.loc)); |
|
return true; |
|
} |
|
} |
|
}); |
|
} |
|
const needFragmentWrapper = children.length !== 1 || children[0].type !== 1 /* ELEMENT */; |
|
const slotOutlet = isSlotOutlet(node) |
|
? node |
|
: isTemplate && |
|
node.children.length === 1 && |
|
isSlotOutlet(node.children[0]) |
|
? node.children[0] // api-extractor somehow fails to infer this |
|
: null; |
|
if (slotOutlet) { |
|
// <slot v-for="..."> or <template v-for="..."><slot/></template> |
|
childBlock = slotOutlet.codegenNode; |
|
if (isTemplate && keyProperty) { |
|
// <template v-for="..." :key="..."><slot/></template> |
|
// we need to inject the key to the renderSlot() call. |
|
// the props for renderSlot is passed as the 3rd argument. |
|
injectProp(childBlock, keyProperty, context); |
|
} |
|
} |
|
else if (needFragmentWrapper) { |
|
// <template v-for="..."> with text or multi-elements |
|
// should generate a fragment block for each loop |
|
childBlock = createVNodeCall(context, helper(FRAGMENT), keyProperty ? createObjectExpression([keyProperty]) : undefined, node.children, 64 /* STABLE_FRAGMENT */ + |
|
(` /* ${PatchFlagNames[64 /* STABLE_FRAGMENT */]} */` |
|
), undefined, undefined, true, undefined, false /* isComponent */); |
|
} |
|
else { |
|
// Normal element v-for. Directly use the child's codegenNode |
|
// but mark it as a block. |
|
childBlock = children[0] |
|
.codegenNode; |
|
if (isTemplate && keyProperty) { |
|
injectProp(childBlock, keyProperty, context); |
|
} |
|
if (childBlock.isBlock !== !isStableFragment) { |
|
if (childBlock.isBlock) { |
|
// switch from block to vnode |
|
removeHelper(OPEN_BLOCK); |
|
removeHelper(getVNodeBlockHelper(context.inSSR, childBlock.isComponent)); |
|
} |
|
else { |
|
// switch from vnode to block |
|
removeHelper(getVNodeHelper(context.inSSR, childBlock.isComponent)); |
|
} |
|
} |
|
childBlock.isBlock = !isStableFragment; |
|
if (childBlock.isBlock) { |
|
helper(OPEN_BLOCK); |
|
helper(getVNodeBlockHelper(context.inSSR, childBlock.isComponent)); |
|
} |
|
else { |
|
helper(getVNodeHelper(context.inSSR, childBlock.isComponent)); |
|
} |
|
} |
|
if (memo) { |
|
const loop = createFunctionExpression(createForLoopParams(forNode.parseResult, [ |
|
createSimpleExpression(`_cached`) |
|
])); |
|
loop.body = createBlockStatement([ |
|
createCompoundExpression([`const _memo = (`, memo.exp, `)`]), |
|
createCompoundExpression([ |
|
`if (_cached`, |
|
...(keyExp ? [` && _cached.key === `, keyExp] : []), |
|
` && ${context.helperString(IS_MEMO_SAME)}(_cached, _memo)) return _cached` |
|
]), |
|
createCompoundExpression([`const _item = `, childBlock]), |
|
createSimpleExpression(`_item.memo = _memo`), |
|
createSimpleExpression(`return _item`) |
|
]); |
|
renderExp.arguments.push(loop, createSimpleExpression(`_cache`), createSimpleExpression(String(context.cached++))); |
|
} |
|
else { |
|
renderExp.arguments.push(createFunctionExpression(createForLoopParams(forNode.parseResult), childBlock, true /* force newline */)); |
|
} |
|
}; |
|
}); |
|
}); |
|
// target-agnostic transform used for both Client and SSR |
|
function processFor(node, dir, context, processCodegen) { |
|
if (!dir.exp) { |
|
context.onError(createCompilerError(31 /* X_V_FOR_NO_EXPRESSION */, dir.loc)); |
|
return; |
|
} |
|
const parseResult = parseForExpression( |
|
// can only be simple expression because vFor transform is applied |
|
// before expression transform. |
|
dir.exp, context); |
|
if (!parseResult) { |
|
context.onError(createCompilerError(32 /* X_V_FOR_MALFORMED_EXPRESSION */, dir.loc)); |
|
return; |
|
} |
|
const { addIdentifiers, removeIdentifiers, scopes } = context; |
|
const { source, value, key, index } = parseResult; |
|
const forNode = { |
|
type: 11 /* FOR */, |
|
loc: dir.loc, |
|
source, |
|
valueAlias: value, |
|
keyAlias: key, |
|
objectIndexAlias: index, |
|
parseResult, |
|
children: isTemplateNode(node) ? node.children : [node] |
|
}; |
|
context.replaceNode(forNode); |
|
// bookkeeping |
|
scopes.vFor++; |
|
const onExit = processCodegen && processCodegen(forNode); |
|
return () => { |
|
scopes.vFor--; |
|
if (onExit) |
|
onExit(); |
|
}; |
|
} |
|
const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/; |
|
// This regex doesn't cover the case if key or index aliases have destructuring, |
|
// but those do not make sense in the first place, so this works in practice. |
|
const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/; |
|
const stripParensRE = /^\(|\)$/g; |
|
function parseForExpression(input, context) { |
|
const loc = input.loc; |
|
const exp = input.content; |
|
const inMatch = exp.match(forAliasRE); |
|
if (!inMatch) |
|
return; |
|
const [, LHS, RHS] = inMatch; |
|
const result = { |
|
source: createAliasExpression(loc, RHS.trim(), exp.indexOf(RHS, LHS.length)), |
|
value: undefined, |
|
key: undefined, |
|
index: undefined |
|
}; |
|
{ |
|
validateBrowserExpression(result.source, context); |
|
} |
|
let valueContent = LHS.trim().replace(stripParensRE, '').trim(); |
|
const trimmedOffset = LHS.indexOf(valueContent); |
|
const iteratorMatch = valueContent.match(forIteratorRE); |
|
if (iteratorMatch) { |
|
valueContent = valueContent.replace(forIteratorRE, '').trim(); |
|
const keyContent = iteratorMatch[1].trim(); |
|
let keyOffset; |
|
if (keyContent) { |
|
keyOffset = exp.indexOf(keyContent, trimmedOffset + valueContent.length); |
|
result.key = createAliasExpression(loc, keyContent, keyOffset); |
|
{ |
|
validateBrowserExpression(result.key, context, true); |
|
} |
|
} |
|
if (iteratorMatch[2]) { |
|
const indexContent = iteratorMatch[2].trim(); |
|
if (indexContent) { |
|
result.index = createAliasExpression(loc, indexContent, exp.indexOf(indexContent, result.key |
|
? keyOffset + keyContent.length |
|
: trimmedOffset + valueContent.length)); |
|
{ |
|
validateBrowserExpression(result.index, context, true); |
|
} |
|
} |
|
} |
|
} |
|
if (valueContent) { |
|
result.value = createAliasExpression(loc, valueContent, trimmedOffset); |
|
{ |
|
validateBrowserExpression(result.value, context, true); |
|
} |
|
} |
|
return result; |
|
} |
|
function createAliasExpression(range, content, offset) { |
|
return createSimpleExpression(content, false, getInnerRange(range, offset, content.length)); |
|
} |
|
function createForLoopParams({ value, key, index }, memoArgs = []) { |
|
return createParamsList([value, key, index, ...memoArgs]); |
|
} |
|
function createParamsList(args) { |
|
let i = args.length; |
|
while (i--) { |
|
if (args[i]) |
|
break; |
|
} |
|
return args |
|
.slice(0, i + 1) |
|
.map((arg, i) => arg || createSimpleExpression(`_`.repeat(i + 1), false)); |
|
} |
|
|
|
const defaultFallback = createSimpleExpression(`undefined`, false); |
|
// A NodeTransform that: |
|
// 1. Tracks scope identifiers for scoped slots so that they don't get prefixed |
|
// by transformExpression. This is only applied in non-browser builds with |
|
// { prefixIdentifiers: true }. |
|
// 2. Track v-slot depths so that we know a slot is inside another slot. |
|
// Note the exit callback is executed before buildSlots() on the same node, |
|
// so only nested slots see positive numbers. |
|
const trackSlotScopes = (node, context) => { |
|
if (node.type === 1 /* ELEMENT */ && |
|
(node.tagType === 1 /* COMPONENT */ || |
|
node.tagType === 3 /* TEMPLATE */)) { |
|
// We are only checking non-empty v-slot here |
|
// since we only care about slots that introduce scope variables. |
|
const vSlot = findDir(node, 'slot'); |
|
if (vSlot) { |
|
vSlot.exp; |
|
context.scopes.vSlot++; |
|
return () => { |
|
context.scopes.vSlot--; |
|
}; |
|
} |
|
} |
|
}; |
|
// A NodeTransform that tracks scope identifiers for scoped slots with v-for. |
|
// This transform is only applied in non-browser builds with { prefixIdentifiers: true } |
|
const trackVForSlotScopes = (node, context) => { |
|
let vFor; |
|
if (isTemplateNode(node) && |
|
node.props.some(isVSlot) && |
|
(vFor = findDir(node, 'for'))) { |
|
const result = (vFor.parseResult = parseForExpression(vFor.exp, context)); |
|
if (result) { |
|
const { value, key, index } = result; |
|
const { addIdentifiers, removeIdentifiers } = context; |
|
value && addIdentifiers(value); |
|
key && addIdentifiers(key); |
|
index && addIdentifiers(index); |
|
return () => { |
|
value && removeIdentifiers(value); |
|
key && removeIdentifiers(key); |
|
index && removeIdentifiers(index); |
|
}; |
|
} |
|
} |
|
}; |
|
const buildClientSlotFn = (props, children, loc) => createFunctionExpression(props, children, false /* newline */, true /* isSlot */, children.length ? children[0].loc : loc); |
|
// Instead of being a DirectiveTransform, v-slot processing is called during |
|
// transformElement to build the slots object for a component. |
|
function buildSlots(node, context, buildSlotFn = buildClientSlotFn) { |
|
context.helper(WITH_CTX); |
|
const { children, loc } = node; |
|
const slotsProperties = []; |
|
const dynamicSlots = []; |
|
// If the slot is inside a v-for or another v-slot, force it to be dynamic |
|
// since it likely uses a scope variable. |
|
let hasDynamicSlots = context.scopes.vSlot > 0 || context.scopes.vFor > 0; |
|
// 1. Check for slot with slotProps on component itself. |
|
// <Comp v-slot="{ prop }"/> |
|
const onComponentSlot = findDir(node, 'slot', true); |
|
if (onComponentSlot) { |
|
const { arg, exp } = onComponentSlot; |
|
if (arg && !isStaticExp(arg)) { |
|
hasDynamicSlots = true; |
|
} |
|
slotsProperties.push(createObjectProperty(arg || createSimpleExpression('default', true), buildSlotFn(exp, children, loc))); |
|
} |
|
// 2. Iterate through children and check for template slots |
|
// <template v-slot:foo="{ prop }"> |
|
let hasTemplateSlots = false; |
|
let hasNamedDefaultSlot = false; |
|
const implicitDefaultChildren = []; |
|
const seenSlotNames = new Set(); |
|
for (let i = 0; i < children.length; i++) { |
|
const slotElement = children[i]; |
|
let slotDir; |
|
if (!isTemplateNode(slotElement) || |
|
!(slotDir = findDir(slotElement, 'slot', true))) { |
|
// not a <template v-slot>, skip. |
|
if (slotElement.type !== 3 /* COMMENT */) { |
|
implicitDefaultChildren.push(slotElement); |
|
} |
|
continue; |
|
} |
|
if (onComponentSlot) { |
|
// already has on-component slot - this is incorrect usage. |
|
context.onError(createCompilerError(37 /* X_V_SLOT_MIXED_SLOT_USAGE */, slotDir.loc)); |
|
break; |
|
} |
|
hasTemplateSlots = true; |
|
const { children: slotChildren, loc: slotLoc } = slotElement; |
|
const { arg: slotName = createSimpleExpression(`default`, true), exp: slotProps, loc: dirLoc } = slotDir; |
|
// check if name is dynamic. |
|
let staticSlotName; |
|
if (isStaticExp(slotName)) { |
|
staticSlotName = slotName ? slotName.content : `default`; |
|
} |
|
else { |
|
hasDynamicSlots = true; |
|
} |
|
const slotFunction = buildSlotFn(slotProps, slotChildren, slotLoc); |
|
// check if this slot is conditional (v-if/v-for) |
|
let vIf; |
|
let vElse; |
|
let vFor; |
|
if ((vIf = findDir(slotElement, 'if'))) { |
|
hasDynamicSlots = true; |
|
dynamicSlots.push(createConditionalExpression(vIf.exp, buildDynamicSlot(slotName, slotFunction), defaultFallback)); |
|
} |
|
else if ((vElse = findDir(slotElement, /^else(-if)?$/, true /* allowEmpty */))) { |
|
// find adjacent v-if |
|
let j = i; |
|
let prev; |
|
while (j--) { |
|
prev = children[j]; |
|
if (prev.type !== 3 /* COMMENT */) { |
|
break; |
|
} |
|
} |
|
if (prev && isTemplateNode(prev) && findDir(prev, 'if')) { |
|
// remove node |
|
children.splice(i, 1); |
|
i--; |
|
// attach this slot to previous conditional |
|
let conditional = dynamicSlots[dynamicSlots.length - 1]; |
|
while (conditional.alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */) { |
|
conditional = conditional.alternate; |
|
} |
|
conditional.alternate = vElse.exp |
|
? createConditionalExpression(vElse.exp, buildDynamicSlot(slotName, slotFunction), defaultFallback) |
|
: buildDynamicSlot(slotName, slotFunction); |
|
} |
|
else { |
|
context.onError(createCompilerError(30 /* X_V_ELSE_NO_ADJACENT_IF */, vElse.loc)); |
|
} |
|
} |
|
else if ((vFor = findDir(slotElement, 'for'))) { |
|
hasDynamicSlots = true; |
|
const parseResult = vFor.parseResult || |
|
parseForExpression(vFor.exp, context); |
|
if (parseResult) { |
|
// Render the dynamic slots as an array and add it to the createSlot() |
|
// args. The runtime knows how to handle it appropriately. |
|
dynamicSlots.push(createCallExpression(context.helper(RENDER_LIST), [ |
|
parseResult.source, |
|
createFunctionExpression(createForLoopParams(parseResult), buildDynamicSlot(slotName, slotFunction), true /* force newline */) |
|
])); |
|
} |
|
else { |
|
context.onError(createCompilerError(32 /* X_V_FOR_MALFORMED_EXPRESSION */, vFor.loc)); |
|
} |
|
} |
|
else { |
|
// check duplicate static names |
|
if (staticSlotName) { |
|
if (seenSlotNames.has(staticSlotName)) { |
|
context.onError(createCompilerError(38 /* X_V_SLOT_DUPLICATE_SLOT_NAMES */, dirLoc)); |
|
continue; |
|
} |
|
seenSlotNames.add(staticSlotName); |
|
if (staticSlotName === 'default') { |
|
hasNamedDefaultSlot = true; |
|
} |
|
} |
|
slotsProperties.push(createObjectProperty(slotName, slotFunction)); |
|
} |
|
} |
|
if (!onComponentSlot) { |
|
const buildDefaultSlotProperty = (props, children) => { |
|
const fn = buildSlotFn(props, children, loc); |
|
if (context.compatConfig) { |
|
fn.isNonScopedSlot = true; |
|
} |
|
return createObjectProperty(`default`, fn); |
|
}; |
|
if (!hasTemplateSlots) { |
|
// implicit default slot (on component) |
|
slotsProperties.push(buildDefaultSlotProperty(undefined, children)); |
|
} |
|
else if (implicitDefaultChildren.length && |
|
// #3766 |
|
// with whitespace: 'preserve', whitespaces between slots will end up in |
|
// implicitDefaultChildren. Ignore if all implicit children are whitespaces. |
|
implicitDefaultChildren.some(node => isNonWhitespaceContent(node))) { |
|
// implicit default slot (mixed with named slots) |
|
if (hasNamedDefaultSlot) { |
|
context.onError(createCompilerError(39 /* X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN */, implicitDefaultChildren[0].loc)); |
|
} |
|
else { |
|
slotsProperties.push(buildDefaultSlotProperty(undefined, implicitDefaultChildren)); |
|
} |
|
} |
|
} |
|
const slotFlag = hasDynamicSlots |
|
? 2 /* DYNAMIC */ |
|
: hasForwardedSlots(node.children) |
|
? 3 /* FORWARDED */ |
|
: 1 /* STABLE */; |
|
let slots = createObjectExpression(slotsProperties.concat(createObjectProperty(`_`, |
|
// 2 = compiled but dynamic = can skip normalization, but must run diff |
|
// 1 = compiled and static = can skip normalization AND diff as optimized |
|
createSimpleExpression(slotFlag + (` /* ${slotFlagsText[slotFlag]} */` ), false))), loc); |
|
if (dynamicSlots.length) { |
|
slots = createCallExpression(context.helper(CREATE_SLOTS), [ |
|
slots, |
|
createArrayExpression(dynamicSlots) |
|
]); |
|
} |
|
return { |
|
slots, |
|
hasDynamicSlots |
|
}; |
|
} |
|
function buildDynamicSlot(name, fn) { |
|
return createObjectExpression([ |
|
createObjectProperty(`name`, name), |
|
createObjectProperty(`fn`, fn) |
|
]); |
|
} |
|
function hasForwardedSlots(children) { |
|
for (let i = 0; i < children.length; i++) { |
|
const child = children[i]; |
|
switch (child.type) { |
|
case 1 /* ELEMENT */: |
|
if (child.tagType === 2 /* SLOT */ || |
|
hasForwardedSlots(child.children)) { |
|
return true; |
|
} |
|
break; |
|
case 9 /* IF */: |
|
if (hasForwardedSlots(child.branches)) |
|
return true; |
|
break; |
|
case 10 /* IF_BRANCH */: |
|
case 11 /* FOR */: |
|
if (hasForwardedSlots(child.children)) |
|
return true; |
|
break; |
|
} |
|
} |
|
return false; |
|
} |
|
function isNonWhitespaceContent(node) { |
|
if (node.type !== 2 /* TEXT */ && node.type !== 12 /* TEXT_CALL */) |
|
return true; |
|
return node.type === 2 /* TEXT */ |
|
? !!node.content.trim() |
|
: isNonWhitespaceContent(node.content); |
|
} |
|
|
|
// some directive transforms (e.g. v-model) may return a symbol for runtime |
|
// import, which should be used instead of a resolveDirective call. |
|
const directiveImportMap = new WeakMap(); |
|
// generate a JavaScript AST for this element's codegen |
|
const transformElement = (node, context) => { |
|
// perform the work on exit, after all child expressions have been |
|
// processed and merged. |
|
return function postTransformElement() { |
|
node = context.currentNode; |
|
if (!(node.type === 1 /* ELEMENT */ && |
|
(node.tagType === 0 /* ELEMENT */ || |
|
node.tagType === 1 /* COMPONENT */))) { |
|
return; |
|
} |
|
const { tag, props } = node; |
|
const isComponent = node.tagType === 1 /* COMPONENT */; |
|
// The goal of the transform is to create a codegenNode implementing the |
|
// VNodeCall interface. |
|
let vnodeTag = isComponent |
|
? resolveComponentType(node, context) |
|
: `"${tag}"`; |
|
const isDynamicComponent = isObject(vnodeTag) && vnodeTag.callee === RESOLVE_DYNAMIC_COMPONENT; |
|
let vnodeProps; |
|
let vnodeChildren; |
|
let vnodePatchFlag; |
|
let patchFlag = 0; |
|
let vnodeDynamicProps; |
|
let dynamicPropNames; |
|
let vnodeDirectives; |
|
let shouldUseBlock = |
|
// dynamic component may resolve to plain elements |
|
isDynamicComponent || |
|
vnodeTag === TELEPORT || |
|
vnodeTag === SUSPENSE || |
|
(!isComponent && |
|
// <svg> and <foreignObject> must be forced into blocks so that block |
|
// updates inside get proper isSVG flag at runtime. (#639, #643) |
|
// This is technically web-specific, but splitting the logic out of core |
|
// leads to too much unnecessary complexity. |
|
(tag === 'svg' || tag === 'foreignObject')); |
|
// props |
|
if (props.length > 0) { |
|
const propsBuildResult = buildProps(node, context, undefined, isComponent, isDynamicComponent); |
|
vnodeProps = propsBuildResult.props; |
|
patchFlag = propsBuildResult.patchFlag; |
|
dynamicPropNames = propsBuildResult.dynamicPropNames; |
|
const directives = propsBuildResult.directives; |
|
vnodeDirectives = |
|
directives && directives.length |
|
? createArrayExpression(directives.map(dir => buildDirectiveArgs(dir, context))) |
|
: undefined; |
|
if (propsBuildResult.shouldUseBlock) { |
|
shouldUseBlock = true; |
|
} |
|
} |
|
// children |
|
if (node.children.length > 0) { |
|
if (vnodeTag === KEEP_ALIVE) { |
|
// Although a built-in component, we compile KeepAlive with raw children |
|
// instead of slot functions so that it can be used inside Transition |
|
// or other Transition-wrapping HOCs. |
|
// To ensure correct updates with block optimizations, we need to: |
|
// 1. Force keep-alive into a block. This avoids its children being |
|
// collected by a parent block. |
|
shouldUseBlock = true; |
|
// 2. Force keep-alive to always be updated, since it uses raw children. |
|
patchFlag |= 1024 /* DYNAMIC_SLOTS */; |
|
if (node.children.length > 1) { |
|
context.onError(createCompilerError(45 /* X_KEEP_ALIVE_INVALID_CHILDREN */, { |
|
start: node.children[0].loc.start, |
|
end: node.children[node.children.length - 1].loc.end, |
|
source: '' |
|
})); |
|
} |
|
} |
|
const shouldBuildAsSlots = isComponent && |
|
// Teleport is not a real component and has dedicated runtime handling |
|
vnodeTag !== TELEPORT && |
|
// explained above. |
|
vnodeTag !== KEEP_ALIVE; |
|
if (shouldBuildAsSlots) { |
|
const { slots, hasDynamicSlots } = buildSlots(node, context); |
|
vnodeChildren = slots; |
|
if (hasDynamicSlots) { |
|
patchFlag |= 1024 /* DYNAMIC_SLOTS */; |
|
} |
|
} |
|
else if (node.children.length === 1 && vnodeTag !== TELEPORT) { |
|
const child = node.children[0]; |
|
const type = child.type; |
|
// check for dynamic text children |
|
const hasDynamicTextChild = type === 5 /* INTERPOLATION */ || |
|
type === 8 /* COMPOUND_EXPRESSION */; |
|
if (hasDynamicTextChild && |
|
getConstantType(child, context) === 0 /* NOT_CONSTANT */) { |
|
patchFlag |= 1 /* TEXT */; |
|
} |
|
// pass directly if the only child is a text node |
|
// (plain / interpolation / expression) |
|
if (hasDynamicTextChild || type === 2 /* TEXT */) { |
|
vnodeChildren = child; |
|
} |
|
else { |
|
vnodeChildren = node.children; |
|
} |
|
} |
|
else { |
|
vnodeChildren = node.children; |
|
} |
|
} |
|
// patchFlag & dynamicPropNames |
|
if (patchFlag !== 0) { |
|
{ |
|
if (patchFlag < 0) { |
|
// special flags (negative and mutually exclusive) |
|
vnodePatchFlag = patchFlag + ` /* ${PatchFlagNames[patchFlag]} */`; |
|
} |
|
else { |
|
// bitwise flags |
|
const flagNames = Object.keys(PatchFlagNames) |
|
.map(Number) |
|
.filter(n => n > 0 && patchFlag & n) |
|
.map(n => PatchFlagNames[n]) |
|
.join(`, `); |
|
vnodePatchFlag = patchFlag + ` /* ${flagNames} */`; |
|
} |
|
} |
|
if (dynamicPropNames && dynamicPropNames.length) { |
|
vnodeDynamicProps = stringifyDynamicPropNames(dynamicPropNames); |
|
} |
|
} |
|
node.codegenNode = createVNodeCall(context, vnodeTag, vnodeProps, vnodeChildren, vnodePatchFlag, vnodeDynamicProps, vnodeDirectives, !!shouldUseBlock, false /* disableTracking */, isComponent, node.loc); |
|
}; |
|
}; |
|
function resolveComponentType(node, context, ssr = false) { |
|
let { tag } = node; |
|
// 1. dynamic component |
|
const isExplicitDynamic = isComponentTag(tag); |
|
const isProp = findProp(node, 'is'); |
|
if (isProp) { |
|
if (isExplicitDynamic || |
|
(isCompatEnabled("COMPILER_IS_ON_ELEMENT" /* COMPILER_IS_ON_ELEMENT */, context))) { |
|
const exp = isProp.type === 6 /* ATTRIBUTE */ |
|
? isProp.value && createSimpleExpression(isProp.value.content, true) |
|
: isProp.exp; |
|
if (exp) { |
|
return createCallExpression(context.helper(RESOLVE_DYNAMIC_COMPONENT), [ |
|
exp |
|
]); |
|
} |
|
} |
|
else if (isProp.type === 6 /* ATTRIBUTE */ && |
|
isProp.value.content.startsWith('vue:')) { |
|
// <button is="vue:xxx"> |
|
// if not <component>, only is value that starts with "vue:" will be |
|
// treated as component by the parse phase and reach here, unless it's |
|
// compat mode where all is values are considered components |
|
tag = isProp.value.content.slice(4); |
|
} |
|
} |
|
// 1.5 v-is (TODO: Deprecate) |
|
const isDir = !isExplicitDynamic && findDir(node, 'is'); |
|
if (isDir && isDir.exp) { |
|
return createCallExpression(context.helper(RESOLVE_DYNAMIC_COMPONENT), [ |
|
isDir.exp |
|
]); |
|
} |
|
// 2. built-in components (Teleport, Transition, KeepAlive, Suspense...) |
|
const builtIn = isCoreComponent(tag) || context.isBuiltInComponent(tag); |
|
if (builtIn) { |
|
// built-ins are simply fallthroughs / have special handling during ssr |
|
// so we don't need to import their runtime equivalents |
|
if (!ssr) |
|
context.helper(builtIn); |
|
return builtIn; |
|
} |
|
// 5. user component (resolve) |
|
context.helper(RESOLVE_COMPONENT); |
|
context.components.add(tag); |
|
return toValidAssetId(tag, `component`); |
|
} |
|
function buildProps(node, context, props = node.props, isComponent, isDynamicComponent, ssr = false) { |
|
const { tag, loc: elementLoc, children } = node; |
|
let properties = []; |
|
const mergeArgs = []; |
|
const runtimeDirectives = []; |
|
const hasChildren = children.length > 0; |
|
let shouldUseBlock = false; |
|
// patchFlag analysis |
|
let patchFlag = 0; |
|
let hasRef = false; |
|
let hasClassBinding = false; |
|
let hasStyleBinding = false; |
|
let hasHydrationEventBinding = false; |
|
let hasDynamicKeys = false; |
|
let hasVnodeHook = false; |
|
const dynamicPropNames = []; |
|
const analyzePatchFlag = ({ key, value }) => { |
|
if (isStaticExp(key)) { |
|
const name = key.content; |
|
const isEventHandler = isOn(name); |
|
if (isEventHandler && |
|
(!isComponent || isDynamicComponent) && |
|
// omit the flag for click handlers because hydration gives click |
|
// dedicated fast path. |
|
name.toLowerCase() !== 'onclick' && |
|
// omit v-model handlers |
|
name !== 'onUpdate:modelValue' && |
|
// omit onVnodeXXX hooks |
|
!isReservedProp(name)) { |
|
hasHydrationEventBinding = true; |
|
} |
|
if (isEventHandler && isReservedProp(name)) { |
|
hasVnodeHook = true; |
|
} |
|
if (value.type === 20 /* JS_CACHE_EXPRESSION */ || |
|
((value.type === 4 /* SIMPLE_EXPRESSION */ || |
|
value.type === 8 /* COMPOUND_EXPRESSION */) && |
|
getConstantType(value, context) > 0)) { |
|
// skip if the prop is a cached handler or has constant value |
|
return; |
|
} |
|
if (name === 'ref') { |
|
hasRef = true; |
|
} |
|
else if (name === 'class') { |
|
hasClassBinding = true; |
|
} |
|
else if (name === 'style') { |
|
hasStyleBinding = true; |
|
} |
|
else if (name !== 'key' && !dynamicPropNames.includes(name)) { |
|
dynamicPropNames.push(name); |
|
} |
|
// treat the dynamic class and style binding of the component as dynamic props |
|
if (isComponent && |
|
(name === 'class' || name === 'style') && |
|
!dynamicPropNames.includes(name)) { |
|
dynamicPropNames.push(name); |
|
} |
|
} |
|
else { |
|
hasDynamicKeys = true; |
|
} |
|
}; |
|
for (let i = 0; i < props.length; i++) { |
|
// static attribute |
|
const prop = props[i]; |
|
if (prop.type === 6 /* ATTRIBUTE */) { |
|
const { loc, name, value } = prop; |
|
let isStatic = true; |
|
if (name === 'ref') { |
|
hasRef = true; |
|
if (context.scopes.vFor > 0) { |
|
properties.push(createObjectProperty(createSimpleExpression('ref_for', true), createSimpleExpression('true'))); |
|
} |
|
} |
|
// skip is on <component>, or is="vue:xxx" |
|
if (name === 'is' && |
|
(isComponentTag(tag) || |
|
(value && value.content.startsWith('vue:')) || |
|
(isCompatEnabled("COMPILER_IS_ON_ELEMENT" /* COMPILER_IS_ON_ELEMENT */, context)))) { |
|
continue; |
|
} |
|
properties.push(createObjectProperty(createSimpleExpression(name, true, getInnerRange(loc, 0, name.length)), createSimpleExpression(value ? value.content : '', isStatic, value ? value.loc : loc))); |
|
} |
|
else { |
|
// directives |
|
const { name, arg, exp, loc } = prop; |
|
const isVBind = name === 'bind'; |
|
const isVOn = name === 'on'; |
|
// skip v-slot - it is handled by its dedicated transform. |
|
if (name === 'slot') { |
|
if (!isComponent) { |
|
context.onError(createCompilerError(40 /* X_V_SLOT_MISPLACED */, loc)); |
|
} |
|
continue; |
|
} |
|
// skip v-once/v-memo - they are handled by dedicated transforms. |
|
if (name === 'once' || name === 'memo') { |
|
continue; |
|
} |
|
// skip v-is and :is on <component> |
|
if (name === 'is' || |
|
(isVBind && |
|
isStaticArgOf(arg, 'is') && |
|
(isComponentTag(tag) || |
|
(isCompatEnabled("COMPILER_IS_ON_ELEMENT" /* COMPILER_IS_ON_ELEMENT */, context))))) { |
|
continue; |
|
} |
|
// skip v-on in SSR compilation |
|
if (isVOn && ssr) { |
|
continue; |
|
} |
|
if ( |
|
// #938: elements with dynamic keys should be forced into blocks |
|
(isVBind && isStaticArgOf(arg, 'key')) || |
|
// inline before-update hooks need to force block so that it is invoked |
|
// before children |
|
(isVOn && hasChildren && isStaticArgOf(arg, 'vue:before-update'))) { |
|
shouldUseBlock = true; |
|
} |
|
if (isVBind && isStaticArgOf(arg, 'ref') && context.scopes.vFor > 0) { |
|
properties.push(createObjectProperty(createSimpleExpression('ref_for', true), createSimpleExpression('true'))); |
|
} |
|
// special case for v-bind and v-on with no argument |
|
if (!arg && (isVBind || isVOn)) { |
|
hasDynamicKeys = true; |
|
if (exp) { |
|
if (properties.length) { |
|
mergeArgs.push(createObjectExpression(dedupeProperties(properties), elementLoc)); |
|
properties = []; |
|
} |
|
if (isVBind) { |
|
{ |
|
// 2.x v-bind object order compat |
|
{ |
|
const hasOverridableKeys = mergeArgs.some(arg => { |
|
if (arg.type === 15 /* JS_OBJECT_EXPRESSION */) { |
|
return arg.properties.some(({ key }) => { |
|
if (key.type !== 4 /* SIMPLE_EXPRESSION */ || |
|
!key.isStatic) { |
|
return true; |
|
} |
|
return (key.content !== 'class' && |
|
key.content !== 'style' && |
|
!isOn(key.content)); |
|
}); |
|
} |
|
else { |
|
// dynamic expression |
|
return true; |
|
} |
|
}); |
|
if (hasOverridableKeys) { |
|
checkCompatEnabled("COMPILER_V_BIND_OBJECT_ORDER" /* COMPILER_V_BIND_OBJECT_ORDER */, context, loc); |
|
} |
|
} |
|
if (isCompatEnabled("COMPILER_V_BIND_OBJECT_ORDER" /* COMPILER_V_BIND_OBJECT_ORDER */, context)) { |
|
mergeArgs.unshift(exp); |
|
continue; |
|
} |
|
} |
|
mergeArgs.push(exp); |
|
} |
|
else { |
|
// v-on="obj" -> toHandlers(obj) |
|
mergeArgs.push({ |
|
type: 14 /* JS_CALL_EXPRESSION */, |
|
loc, |
|
callee: context.helper(TO_HANDLERS), |
|
arguments: [exp] |
|
}); |
|
} |
|
} |
|
else { |
|
context.onError(createCompilerError(isVBind |
|
? 34 /* X_V_BIND_NO_EXPRESSION */ |
|
: 35 /* X_V_ON_NO_EXPRESSION */, loc)); |
|
} |
|
continue; |
|
} |
|
const directiveTransform = context.directiveTransforms[name]; |
|
if (directiveTransform) { |
|
// has built-in directive transform. |
|
const { props, needRuntime } = directiveTransform(prop, node, context); |
|
!ssr && props.forEach(analyzePatchFlag); |
|
properties.push(...props); |
|
if (needRuntime) { |
|
runtimeDirectives.push(prop); |
|
if (isSymbol(needRuntime)) { |
|
directiveImportMap.set(prop, needRuntime); |
|
} |
|
} |
|
} |
|
else if (!isBuiltInDirective(name)) { |
|
// no built-in transform, this is a user custom directive. |
|
runtimeDirectives.push(prop); |
|
// custom dirs may use beforeUpdate so they need to force blocks |
|
// to ensure before-update gets called before children update |
|
if (hasChildren) { |
|
shouldUseBlock = true; |
|
} |
|
} |
|
} |
|
} |
|
let propsExpression = undefined; |
|
// has v-bind="object" or v-on="object", wrap with mergeProps |
|
if (mergeArgs.length) { |
|
if (properties.length) { |
|
mergeArgs.push(createObjectExpression(dedupeProperties(properties), elementLoc)); |
|
} |
|
if (mergeArgs.length > 1) { |
|
propsExpression = createCallExpression(context.helper(MERGE_PROPS), mergeArgs, elementLoc); |
|
} |
|
else { |
|
// single v-bind with nothing else - no need for a mergeProps call |
|
propsExpression = mergeArgs[0]; |
|
} |
|
} |
|
else if (properties.length) { |
|
propsExpression = createObjectExpression(dedupeProperties(properties), elementLoc); |
|
} |
|
// patchFlag analysis |
|
if (hasDynamicKeys) { |
|
patchFlag |= 16 /* FULL_PROPS */; |
|
} |
|
else { |
|
if (hasClassBinding && !isComponent) { |
|
patchFlag |= 2 /* CLASS */; |
|
} |
|
if (hasStyleBinding && !isComponent) { |
|
patchFlag |= 4 /* STYLE */; |
|
} |
|
if (dynamicPropNames.length) { |
|
patchFlag |= 8 /* PROPS */; |
|
} |
|
if (hasHydrationEventBinding) { |
|
patchFlag |= 32 /* HYDRATE_EVENTS */; |
|
} |
|
} |
|
if (!shouldUseBlock && |
|
(patchFlag === 0 || patchFlag === 32 /* HYDRATE_EVENTS */) && |
|
(hasRef || hasVnodeHook || runtimeDirectives.length > 0)) { |
|
patchFlag |= 512 /* NEED_PATCH */; |
|
} |
|
// pre-normalize props, SSR is skipped for now |
|
if (!context.inSSR && propsExpression) { |
|
switch (propsExpression.type) { |
|
case 15 /* JS_OBJECT_EXPRESSION */: |
|
// means that there is no v-bind, |
|
// but still need to deal with dynamic key binding |
|
let classKeyIndex = -1; |
|
let styleKeyIndex = -1; |
|
let hasDynamicKey = false; |
|
for (let i = 0; i < propsExpression.properties.length; i++) { |
|
const key = propsExpression.properties[i].key; |
|
if (isStaticExp(key)) { |
|
if (key.content === 'class') { |
|
classKeyIndex = i; |
|
} |
|
else if (key.content === 'style') { |
|
styleKeyIndex = i; |
|
} |
|
} |
|
else if (!key.isHandlerKey) { |
|
hasDynamicKey = true; |
|
} |
|
} |
|
const classProp = propsExpression.properties[classKeyIndex]; |
|
const styleProp = propsExpression.properties[styleKeyIndex]; |
|
// no dynamic key |
|
if (!hasDynamicKey) { |
|
if (classProp && !isStaticExp(classProp.value)) { |
|
classProp.value = createCallExpression(context.helper(NORMALIZE_CLASS), [classProp.value]); |
|
} |
|
if (styleProp && |
|
// the static style is compiled into an object, |
|
// so use `hasStyleBinding` to ensure that it is a dynamic style binding |
|
(hasStyleBinding || |
|
(styleProp.value.type === 4 /* SIMPLE_EXPRESSION */ && |
|
styleProp.value.content.trim()[0] === `[`) || |
|
// v-bind:style and style both exist, |
|
// v-bind:style with static literal object |
|
styleProp.value.type === 17 /* JS_ARRAY_EXPRESSION */)) { |
|
styleProp.value = createCallExpression(context.helper(NORMALIZE_STYLE), [styleProp.value]); |
|
} |
|
} |
|
else { |
|
// dynamic key binding, wrap with `normalizeProps` |
|
propsExpression = createCallExpression(context.helper(NORMALIZE_PROPS), [propsExpression]); |
|
} |
|
break; |
|
case 14 /* JS_CALL_EXPRESSION */: |
|
// mergeProps call, do nothing |
|
break; |
|
default: |
|
// single v-bind |
|
propsExpression = createCallExpression(context.helper(NORMALIZE_PROPS), [ |
|
createCallExpression(context.helper(GUARD_REACTIVE_PROPS), [ |
|
propsExpression |
|
]) |
|
]); |
|
break; |
|
} |
|
} |
|
return { |
|
props: propsExpression, |
|
directives: runtimeDirectives, |
|
patchFlag, |
|
dynamicPropNames, |
|
shouldUseBlock |
|
}; |
|
} |
|
// Dedupe props in an object literal. |
|
// Literal duplicated attributes would have been warned during the parse phase, |
|
// however, it's possible to encounter duplicated `onXXX` handlers with different |
|
// modifiers. We also need to merge static and dynamic class / style attributes. |
|
// - onXXX handlers / style: merge into array |
|
// - class: merge into single expression with concatenation |
|
function dedupeProperties(properties) { |
|
const knownProps = new Map(); |
|
const deduped = []; |
|
for (let i = 0; i < properties.length; i++) { |
|
const prop = properties[i]; |
|
// dynamic keys are always allowed |
|
if (prop.key.type === 8 /* COMPOUND_EXPRESSION */ || !prop.key.isStatic) { |
|
deduped.push(prop); |
|
continue; |
|
} |
|
const name = prop.key.content; |
|
const existing = knownProps.get(name); |
|
if (existing) { |
|
if (name === 'style' || name === 'class' || isOn(name)) { |
|
mergeAsArray(existing, prop); |
|
} |
|
// unexpected duplicate, should have emitted error during parse |
|
} |
|
else { |
|
knownProps.set(name, prop); |
|
deduped.push(prop); |
|
} |
|
} |
|
return deduped; |
|
} |
|
function mergeAsArray(existing, incoming) { |
|
if (existing.value.type === 17 /* JS_ARRAY_EXPRESSION */) { |
|
existing.value.elements.push(incoming.value); |
|
} |
|
else { |
|
existing.value = createArrayExpression([existing.value, incoming.value], existing.loc); |
|
} |
|
} |
|
function buildDirectiveArgs(dir, context) { |
|
const dirArgs = []; |
|
const runtime = directiveImportMap.get(dir); |
|
if (runtime) { |
|
// built-in directive with runtime |
|
dirArgs.push(context.helperString(runtime)); |
|
} |
|
else { |
|
{ |
|
// inject statement for resolving directive |
|
context.helper(RESOLVE_DIRECTIVE); |
|
context.directives.add(dir.name); |
|
dirArgs.push(toValidAssetId(dir.name, `directive`)); |
|
} |
|
} |
|
const { loc } = dir; |
|
if (dir.exp) |
|
dirArgs.push(dir.exp); |
|
if (dir.arg) { |
|
if (!dir.exp) { |
|
dirArgs.push(`void 0`); |
|
} |
|
dirArgs.push(dir.arg); |
|
} |
|
if (Object.keys(dir.modifiers).length) { |
|
if (!dir.arg) { |
|
if (!dir.exp) { |
|
dirArgs.push(`void 0`); |
|
} |
|
dirArgs.push(`void 0`); |
|
} |
|
const trueExpression = createSimpleExpression(`true`, false, loc); |
|
dirArgs.push(createObjectExpression(dir.modifiers.map(modifier => createObjectProperty(modifier, trueExpression)), loc)); |
|
} |
|
return createArrayExpression(dirArgs, dir.loc); |
|
} |
|
function stringifyDynamicPropNames(props) { |
|
let propsNamesString = `[`; |
|
for (let i = 0, l = props.length; i < l; i++) { |
|
propsNamesString += JSON.stringify(props[i]); |
|
if (i < l - 1) |
|
propsNamesString += ', '; |
|
} |
|
return propsNamesString + `]`; |
|
} |
|
function isComponentTag(tag) { |
|
return tag === 'component' || tag === 'Component'; |
|
} |
|
|
|
const transformSlotOutlet = (node, context) => { |
|
if (isSlotOutlet(node)) { |
|
const { children, loc } = node; |
|
const { slotName, slotProps } = processSlotOutlet(node, context); |
|
const slotArgs = [ |
|
context.prefixIdentifiers ? `_ctx.$slots` : `$slots`, |
|
slotName, |
|
'{}', |
|
'undefined', |
|
'true' |
|
]; |
|
let expectedLen = 2; |
|
if (slotProps) { |
|
slotArgs[2] = slotProps; |
|
expectedLen = 3; |
|
} |
|
if (children.length) { |
|
slotArgs[3] = createFunctionExpression([], children, false, false, loc); |
|
expectedLen = 4; |
|
} |
|
if (context.scopeId && !context.slotted) { |
|
expectedLen = 5; |
|
} |
|
slotArgs.splice(expectedLen); // remove unused arguments |
|
node.codegenNode = createCallExpression(context.helper(RENDER_SLOT), slotArgs, loc); |
|
} |
|
}; |
|
function processSlotOutlet(node, context) { |
|
let slotName = `"default"`; |
|
let slotProps = undefined; |
|
const nonNameProps = []; |
|
for (let i = 0; i < node.props.length; i++) { |
|
const p = node.props[i]; |
|
if (p.type === 6 /* ATTRIBUTE */) { |
|
if (p.value) { |
|
if (p.name === 'name') { |
|
slotName = JSON.stringify(p.value.content); |
|
} |
|
else { |
|
p.name = camelize(p.name); |
|
nonNameProps.push(p); |
|
} |
|
} |
|
} |
|
else { |
|
if (p.name === 'bind' && isStaticArgOf(p.arg, 'name')) { |
|
if (p.exp) |
|
slotName = p.exp; |
|
} |
|
else { |
|
if (p.name === 'bind' && p.arg && isStaticExp(p.arg)) { |
|
p.arg.content = camelize(p.arg.content); |
|
} |
|
nonNameProps.push(p); |
|
} |
|
} |
|
} |
|
if (nonNameProps.length > 0) { |
|
const { props, directives } = buildProps(node, context, nonNameProps, false, false); |
|
slotProps = props; |
|
if (directives.length) { |
|
context.onError(createCompilerError(36 /* X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET */, directives[0].loc)); |
|
} |
|
} |
|
return { |
|
slotName, |
|
slotProps |
|
}; |
|
} |
|
|
|
const fnExpRE = /^\s*([\w$_]+|(async\s*)?\([^)]*?\))\s*=>|^\s*(async\s+)?function(?:\s+[\w$]+)?\s*\(/; |
|
const transformOn = (dir, node, context, augmentor) => { |
|
const { loc, modifiers, arg } = dir; |
|
if (!dir.exp && !modifiers.length) { |
|
context.onError(createCompilerError(35 /* X_V_ON_NO_EXPRESSION */, loc)); |
|
} |
|
let eventName; |
|
if (arg.type === 4 /* SIMPLE_EXPRESSION */) { |
|
if (arg.isStatic) { |
|
let rawName = arg.content; |
|
// TODO deprecate @vnodeXXX usage |
|
if (rawName.startsWith('vue:')) { |
|
rawName = `vnode-${rawName.slice(4)}`; |
|
} |
|
// for all event listeners, auto convert it to camelCase. See issue #2249 |
|
eventName = createSimpleExpression(toHandlerKey(camelize(rawName)), true, arg.loc); |
|
} |
|
else { |
|
// #2388 |
|
eventName = createCompoundExpression([ |
|
`${context.helperString(TO_HANDLER_KEY)}(`, |
|
arg, |
|
`)` |
|
]); |
|
} |
|
} |
|
else { |
|
// already a compound expression. |
|
eventName = arg; |
|
eventName.children.unshift(`${context.helperString(TO_HANDLER_KEY)}(`); |
|
eventName.children.push(`)`); |
|
} |
|
// handler processing |
|
let exp = dir.exp; |
|
if (exp && !exp.content.trim()) { |
|
exp = undefined; |
|
} |
|
let shouldCache = context.cacheHandlers && !exp && !context.inVOnce; |
|
if (exp) { |
|
const isMemberExp = isMemberExpression(exp.content); |
|
const isInlineStatement = !(isMemberExp || fnExpRE.test(exp.content)); |
|
const hasMultipleStatements = exp.content.includes(`;`); |
|
{ |
|
validateBrowserExpression(exp, context, false, hasMultipleStatements); |
|
} |
|
if (isInlineStatement || (shouldCache && isMemberExp)) { |
|
// wrap inline statement in a function expression |
|
exp = createCompoundExpression([ |
|
`${isInlineStatement |
|
? `$event` |
|
: `${``}(...args)`} => ${hasMultipleStatements ? `{` : `(`}`, |
|
exp, |
|
hasMultipleStatements ? `}` : `)` |
|
]); |
|
} |
|
} |
|
let ret = { |
|
props: [ |
|
createObjectProperty(eventName, exp || createSimpleExpression(`() => {}`, false, loc)) |
|
] |
|
}; |
|
// apply extended compiler augmentor |
|
if (augmentor) { |
|
ret = augmentor(ret); |
|
} |
|
if (shouldCache) { |
|
// cache handlers so that it's always the same handler being passed down. |
|
// this avoids unnecessary re-renders when users use inline handlers on |
|
// components. |
|
ret.props[0].value = context.cache(ret.props[0].value); |
|
} |
|
// mark the key as handler for props normalization check |
|
ret.props.forEach(p => (p.key.isHandlerKey = true)); |
|
return ret; |
|
}; |
|
|
|
// v-bind without arg is handled directly in ./transformElements.ts due to it affecting |
|
// codegen for the entire props object. This transform here is only for v-bind |
|
// *with* args. |
|
const transformBind = (dir, _node, context) => { |
|
const { exp, modifiers, loc } = dir; |
|
const arg = dir.arg; |
|
if (arg.type !== 4 /* SIMPLE_EXPRESSION */) { |
|
arg.children.unshift(`(`); |
|
arg.children.push(`) || ""`); |
|
} |
|
else if (!arg.isStatic) { |
|
arg.content = `${arg.content} || ""`; |
|
} |
|
// .sync is replaced by v-model:arg |
|
if (modifiers.includes('camel')) { |
|
if (arg.type === 4 /* SIMPLE_EXPRESSION */) { |
|
if (arg.isStatic) { |
|
arg.content = camelize(arg.content); |
|
} |
|
else { |
|
arg.content = `${context.helperString(CAMELIZE)}(${arg.content})`; |
|
} |
|
} |
|
else { |
|
arg.children.unshift(`${context.helperString(CAMELIZE)}(`); |
|
arg.children.push(`)`); |
|
} |
|
} |
|
if (!context.inSSR) { |
|
if (modifiers.includes('prop')) { |
|
injectPrefix(arg, '.'); |
|
} |
|
if (modifiers.includes('attr')) { |
|
injectPrefix(arg, '^'); |
|
} |
|
} |
|
if (!exp || |
|
(exp.type === 4 /* SIMPLE_EXPRESSION */ && !exp.content.trim())) { |
|
context.onError(createCompilerError(34 /* X_V_BIND_NO_EXPRESSION */, loc)); |
|
return { |
|
props: [createObjectProperty(arg, createSimpleExpression('', true, loc))] |
|
}; |
|
} |
|
return { |
|
props: [createObjectProperty(arg, exp)] |
|
}; |
|
}; |
|
const injectPrefix = (arg, prefix) => { |
|
if (arg.type === 4 /* SIMPLE_EXPRESSION */) { |
|
if (arg.isStatic) { |
|
arg.content = prefix + arg.content; |
|
} |
|
else { |
|
arg.content = `\`${prefix}\${${arg.content}}\``; |
|
} |
|
} |
|
else { |
|
arg.children.unshift(`'${prefix}' + (`); |
|
arg.children.push(`)`); |
|
} |
|
}; |
|
|
|
// Merge adjacent text nodes and expressions into a single expression |
|
// e.g. <div>abc {{ d }} {{ e }}</div> should have a single expression node as child. |
|
const transformText = (node, context) => { |
|
if (node.type === 0 /* ROOT */ || |
|
node.type === 1 /* ELEMENT */ || |
|
node.type === 11 /* FOR */ || |
|
node.type === 10 /* IF_BRANCH */) { |
|
// perform the transform on node exit so that all expressions have already |
|
// been processed. |
|
return () => { |
|
const children = node.children; |
|
let currentContainer = undefined; |
|
let hasText = false; |
|
for (let i = 0; i < children.length; i++) { |
|
const child = children[i]; |
|
if (isText(child)) { |
|
hasText = true; |
|
for (let j = i + 1; j < children.length; j++) { |
|
const next = children[j]; |
|
if (isText(next)) { |
|
if (!currentContainer) { |
|
currentContainer = children[i] = createCompoundExpression([child], child.loc); |
|
} |
|
// merge adjacent text node into current |
|
currentContainer.children.push(` + `, next); |
|
children.splice(j, 1); |
|
j--; |
|
} |
|
else { |
|
currentContainer = undefined; |
|
break; |
|
} |
|
} |
|
} |
|
} |
|
if (!hasText || |
|
// if this is a plain element with a single text child, leave it |
|
// as-is since the runtime has dedicated fast path for this by directly |
|
// setting textContent of the element. |
|
// for component root it's always normalized anyway. |
|
(children.length === 1 && |
|
(node.type === 0 /* ROOT */ || |
|
(node.type === 1 /* ELEMENT */ && |
|
node.tagType === 0 /* ELEMENT */ && |
|
// #3756 |
|
// custom directives can potentially add DOM elements arbitrarily, |
|
// we need to avoid setting textContent of the element at runtime |
|
// to avoid accidentally overwriting the DOM elements added |
|
// by the user through custom directives. |
|
!node.props.find(p => p.type === 7 /* DIRECTIVE */ && |
|
!context.directiveTransforms[p.name]) && |
|
// in compat mode, <template> tags with no special directives |
|
// will be rendered as a fragment so its children must be |
|
// converted into vnodes. |
|
!(node.tag === 'template'))))) { |
|
return; |
|
} |
|
// pre-convert text nodes into createTextVNode(text) calls to avoid |
|
// runtime normalization. |
|
for (let i = 0; i < children.length; i++) { |
|
const child = children[i]; |
|
if (isText(child) || child.type === 8 /* COMPOUND_EXPRESSION */) { |
|
const callArgs = []; |
|
// createTextVNode defaults to single whitespace, so if it is a |
|
// single space the code could be an empty call to save bytes. |
|
if (child.type !== 2 /* TEXT */ || child.content !== ' ') { |
|
callArgs.push(child); |
|
} |
|
// mark dynamic text with flag so it gets patched inside a block |
|
if (!context.ssr && |
|
getConstantType(child, context) === 0 /* NOT_CONSTANT */) { |
|
callArgs.push(1 /* TEXT */ + |
|
(` /* ${PatchFlagNames[1 /* TEXT */]} */` )); |
|
} |
|
children[i] = { |
|
type: 12 /* TEXT_CALL */, |
|
content: child, |
|
loc: child.loc, |
|
codegenNode: createCallExpression(context.helper(CREATE_TEXT), callArgs) |
|
}; |
|
} |
|
} |
|
}; |
|
} |
|
}; |
|
|
|
const seen = new WeakSet(); |
|
const transformOnce = (node, context) => { |
|
if (node.type === 1 /* ELEMENT */ && findDir(node, 'once', true)) { |
|
if (seen.has(node) || context.inVOnce) { |
|
return; |
|
} |
|
seen.add(node); |
|
context.inVOnce = true; |
|
context.helper(SET_BLOCK_TRACKING); |
|
return () => { |
|
context.inVOnce = false; |
|
const cur = context.currentNode; |
|
if (cur.codegenNode) { |
|
cur.codegenNode = context.cache(cur.codegenNode, true /* isVNode */); |
|
} |
|
}; |
|
} |
|
}; |
|
|
|
const transformModel = (dir, node, context) => { |
|
const { exp, arg } = dir; |
|
if (!exp) { |
|
context.onError(createCompilerError(41 /* X_V_MODEL_NO_EXPRESSION */, dir.loc)); |
|
return createTransformProps(); |
|
} |
|
const rawExp = exp.loc.source; |
|
const expString = exp.type === 4 /* SIMPLE_EXPRESSION */ ? exp.content : rawExp; |
|
// im SFC <script setup> inline mode, the exp may have been transformed into |
|
// _unref(exp) |
|
context.bindingMetadata[rawExp]; |
|
const maybeRef = !true /* SETUP_CONST */; |
|
if (!expString.trim() || |
|
(!isMemberExpression(expString) && !maybeRef)) { |
|
context.onError(createCompilerError(42 /* X_V_MODEL_MALFORMED_EXPRESSION */, exp.loc)); |
|
return createTransformProps(); |
|
} |
|
const propName = arg ? arg : createSimpleExpression('modelValue', true); |
|
const eventName = arg |
|
? isStaticExp(arg) |
|
? `onUpdate:${arg.content}` |
|
: createCompoundExpression(['"onUpdate:" + ', arg]) |
|
: `onUpdate:modelValue`; |
|
let assignmentExp; |
|
const eventArg = context.isTS ? `($event: any)` : `$event`; |
|
{ |
|
assignmentExp = createCompoundExpression([ |
|
`${eventArg} => ((`, |
|
exp, |
|
`) = $event)` |
|
]); |
|
} |
|
const props = [ |
|
// modelValue: foo |
|
createObjectProperty(propName, dir.exp), |
|
// "onUpdate:modelValue": $event => (foo = $event) |
|
createObjectProperty(eventName, assignmentExp) |
|
]; |
|
// modelModifiers: { foo: true, "bar-baz": true } |
|
if (dir.modifiers.length && node.tagType === 1 /* COMPONENT */) { |
|
const modifiers = dir.modifiers |
|
.map(m => (isSimpleIdentifier(m) ? m : JSON.stringify(m)) + `: true`) |
|
.join(`, `); |
|
const modifiersKey = arg |
|
? isStaticExp(arg) |
|
? `${arg.content}Modifiers` |
|
: createCompoundExpression([arg, ' + "Modifiers"']) |
|
: `modelModifiers`; |
|
props.push(createObjectProperty(modifiersKey, createSimpleExpression(`{ ${modifiers} }`, false, dir.loc, 2 /* CAN_HOIST */))); |
|
} |
|
return createTransformProps(props); |
|
}; |
|
function createTransformProps(props = []) { |
|
return { props }; |
|
} |
|
|
|
const validDivisionCharRE = /[\w).+\-_$\]]/; |
|
const transformFilter = (node, context) => { |
|
if (!isCompatEnabled("COMPILER_FILTER" /* COMPILER_FILTERS */, context)) { |
|
return; |
|
} |
|
if (node.type === 5 /* INTERPOLATION */) { |
|
// filter rewrite is applied before expression transform so only |
|
// simple expressions are possible at this stage |
|
rewriteFilter(node.content, context); |
|
} |
|
if (node.type === 1 /* ELEMENT */) { |
|
node.props.forEach((prop) => { |
|
if (prop.type === 7 /* DIRECTIVE */ && |
|
prop.name !== 'for' && |
|
prop.exp) { |
|
rewriteFilter(prop.exp, context); |
|
} |
|
}); |
|
} |
|
}; |
|
function rewriteFilter(node, context) { |
|
if (node.type === 4 /* SIMPLE_EXPRESSION */) { |
|
parseFilter(node, context); |
|
} |
|
else { |
|
for (let i = 0; i < node.children.length; i++) { |
|
const child = node.children[i]; |
|
if (typeof child !== 'object') |
|
continue; |
|
if (child.type === 4 /* SIMPLE_EXPRESSION */) { |
|
parseFilter(child, context); |
|
} |
|
else if (child.type === 8 /* COMPOUND_EXPRESSION */) { |
|
rewriteFilter(node, context); |
|
} |
|
else if (child.type === 5 /* INTERPOLATION */) { |
|
rewriteFilter(child.content, context); |
|
} |
|
} |
|
} |
|
} |
|
function parseFilter(node, context) { |
|
const exp = node.content; |
|
let inSingle = false; |
|
let inDouble = false; |
|
let inTemplateString = false; |
|
let inRegex = false; |
|
let curly = 0; |
|
let square = 0; |
|
let paren = 0; |
|
let lastFilterIndex = 0; |
|
let c, prev, i, expression, filters = []; |
|
for (i = 0; i < exp.length; i++) { |
|
prev = c; |
|
c = exp.charCodeAt(i); |
|
if (inSingle) { |
|
if (c === 0x27 && prev !== 0x5c) |
|
inSingle = false; |
|
} |
|
else if (inDouble) { |
|
if (c === 0x22 && prev !== 0x5c) |
|
inDouble = false; |
|
} |
|
else if (inTemplateString) { |
|
if (c === 0x60 && prev !== 0x5c) |
|
inTemplateString = false; |
|
} |
|
else if (inRegex) { |
|
if (c === 0x2f && prev !== 0x5c) |
|
inRegex = false; |
|
} |
|
else if (c === 0x7c && // pipe |
|
exp.charCodeAt(i + 1) !== 0x7c && |
|
exp.charCodeAt(i - 1) !== 0x7c && |
|
!curly && |
|
!square && |
|
!paren) { |
|
if (expression === undefined) { |
|
// first filter, end of expression |
|
lastFilterIndex = i + 1; |
|
expression = exp.slice(0, i).trim(); |
|
} |
|
else { |
|
pushFilter(); |
|
} |
|
} |
|
else { |
|
switch (c) { |
|
case 0x22: |
|
inDouble = true; |
|
break; // " |
|
case 0x27: |
|
inSingle = true; |
|
break; // ' |
|
case 0x60: |
|
inTemplateString = true; |
|
break; // ` |
|
case 0x28: |
|
paren++; |
|
break; // ( |
|
case 0x29: |
|
paren--; |
|
break; // ) |
|
case 0x5b: |
|
square++; |
|
break; // [ |
|
case 0x5d: |
|
square--; |
|
break; // ] |
|
case 0x7b: |
|
curly++; |
|
break; // { |
|
case 0x7d: |
|
curly--; |
|
break; // } |
|
} |
|
if (c === 0x2f) { |
|
// / |
|
let j = i - 1; |
|
let p; |
|
// find first non-whitespace prev char |
|
for (; j >= 0; j--) { |
|
p = exp.charAt(j); |
|
if (p !== ' ') |
|
break; |
|
} |
|
if (!p || !validDivisionCharRE.test(p)) { |
|
inRegex = true; |
|
} |
|
} |
|
} |
|
} |
|
if (expression === undefined) { |
|
expression = exp.slice(0, i).trim(); |
|
} |
|
else if (lastFilterIndex !== 0) { |
|
pushFilter(); |
|
} |
|
function pushFilter() { |
|
filters.push(exp.slice(lastFilterIndex, i).trim()); |
|
lastFilterIndex = i + 1; |
|
} |
|
if (filters.length) { |
|
warnDeprecation("COMPILER_FILTER" /* COMPILER_FILTERS */, context, node.loc); |
|
for (i = 0; i < filters.length; i++) { |
|
expression = wrapFilter(expression, filters[i], context); |
|
} |
|
node.content = expression; |
|
} |
|
} |
|
function wrapFilter(exp, filter, context) { |
|
context.helper(RESOLVE_FILTER); |
|
const i = filter.indexOf('('); |
|
if (i < 0) { |
|
context.filters.add(filter); |
|
return `${toValidAssetId(filter, 'filter')}(${exp})`; |
|
} |
|
else { |
|
const name = filter.slice(0, i); |
|
const args = filter.slice(i + 1); |
|
context.filters.add(name); |
|
return `${toValidAssetId(name, 'filter')}(${exp}${args !== ')' ? ',' + args : args}`; |
|
} |
|
} |
|
|
|
const seen$1 = new WeakSet(); |
|
const transformMemo = (node, context) => { |
|
if (node.type === 1 /* ELEMENT */) { |
|
const dir = findDir(node, 'memo'); |
|
if (!dir || seen$1.has(node)) { |
|
return; |
|
} |
|
seen$1.add(node); |
|
return () => { |
|
const codegenNode = node.codegenNode || |
|
context.currentNode.codegenNode; |
|
if (codegenNode && codegenNode.type === 13 /* VNODE_CALL */) { |
|
// non-component sub tree should be turned into a block |
|
if (node.tagType !== 1 /* COMPONENT */) { |
|
makeBlock(codegenNode, context); |
|
} |
|
node.codegenNode = createCallExpression(context.helper(WITH_MEMO), [ |
|
dir.exp, |
|
createFunctionExpression(undefined, codegenNode), |
|
`_cache`, |
|
String(context.cached++) |
|
]); |
|
} |
|
}; |
|
} |
|
}; |
|
|
|
function getBaseTransformPreset(prefixIdentifiers) { |
|
return [ |
|
[ |
|
transformOnce, |
|
transformIf, |
|
transformMemo, |
|
transformFor, |
|
...([transformFilter] ), |
|
...([transformExpression] |
|
), |
|
transformSlotOutlet, |
|
transformElement, |
|
trackSlotScopes, |
|
transformText |
|
], |
|
{ |
|
on: transformOn, |
|
bind: transformBind, |
|
model: transformModel |
|
} |
|
]; |
|
} |
|
// we name it `baseCompile` so that higher order compilers like |
|
// @vue/compiler-dom can export `compile` while re-exporting everything else. |
|
function baseCompile(template, options = {}) { |
|
const onError = options.onError || defaultOnError; |
|
const isModuleMode = options.mode === 'module'; |
|
/* istanbul ignore if */ |
|
{ |
|
if (options.prefixIdentifiers === true) { |
|
onError(createCompilerError(46 /* X_PREFIX_ID_NOT_SUPPORTED */)); |
|
} |
|
else if (isModuleMode) { |
|
onError(createCompilerError(47 /* X_MODULE_MODE_NOT_SUPPORTED */)); |
|
} |
|
} |
|
const prefixIdentifiers = !true ; |
|
if (options.cacheHandlers) { |
|
onError(createCompilerError(48 /* X_CACHE_HANDLER_NOT_SUPPORTED */)); |
|
} |
|
if (options.scopeId && !isModuleMode) { |
|
onError(createCompilerError(49 /* X_SCOPE_ID_NOT_SUPPORTED */)); |
|
} |
|
const ast = isString(template) ? baseParse(template, options) : template; |
|
const [nodeTransforms, directiveTransforms] = getBaseTransformPreset(); |
|
transform(ast, extend({}, options, { |
|
prefixIdentifiers, |
|
nodeTransforms: [ |
|
...nodeTransforms, |
|
...(options.nodeTransforms || []) // user transforms |
|
], |
|
directiveTransforms: extend({}, directiveTransforms, options.directiveTransforms || {} // user transforms |
|
) |
|
})); |
|
return generate(ast, extend({}, options, { |
|
prefixIdentifiers |
|
})); |
|
} |
|
|
|
const noopDirectiveTransform = () => ({ props: [] }); |
|
|
|
const V_MODEL_RADIO = Symbol(`vModelRadio` ); |
|
const V_MODEL_CHECKBOX = Symbol(`vModelCheckbox` ); |
|
const V_MODEL_TEXT = Symbol(`vModelText` ); |
|
const V_MODEL_SELECT = Symbol(`vModelSelect` ); |
|
const V_MODEL_DYNAMIC = Symbol(`vModelDynamic` ); |
|
const V_ON_WITH_MODIFIERS = Symbol(`vOnModifiersGuard` ); |
|
const V_ON_WITH_KEYS = Symbol(`vOnKeysGuard` ); |
|
const V_SHOW = Symbol(`vShow` ); |
|
const TRANSITION = Symbol(`Transition` ); |
|
const TRANSITION_GROUP = Symbol(`TransitionGroup` ); |
|
registerRuntimeHelpers({ |
|
[V_MODEL_RADIO]: `vModelRadio`, |
|
[V_MODEL_CHECKBOX]: `vModelCheckbox`, |
|
[V_MODEL_TEXT]: `vModelText`, |
|
[V_MODEL_SELECT]: `vModelSelect`, |
|
[V_MODEL_DYNAMIC]: `vModelDynamic`, |
|
[V_ON_WITH_MODIFIERS]: `withModifiers`, |
|
[V_ON_WITH_KEYS]: `withKeys`, |
|
[V_SHOW]: `vShow`, |
|
[TRANSITION]: `Transition`, |
|
[TRANSITION_GROUP]: `TransitionGroup` |
|
}); |
|
|
|
/* eslint-disable no-restricted-globals */ |
|
let decoder; |
|
function decodeHtmlBrowser(raw, asAttr = false) { |
|
if (!decoder) { |
|
decoder = document.createElement('div'); |
|
} |
|
if (asAttr) { |
|
decoder.innerHTML = `<div foo="${raw.replace(/"/g, '"')}">`; |
|
return decoder.children[0].getAttribute('foo'); |
|
} |
|
else { |
|
decoder.innerHTML = raw; |
|
return decoder.textContent; |
|
} |
|
} |
|
|
|
const isRawTextContainer = /*#__PURE__*/ makeMap('style,iframe,script,noscript', true); |
|
const parserOptions = { |
|
isVoidTag, |
|
isNativeTag: tag => isHTMLTag(tag) || isSVGTag(tag), |
|
isPreTag: tag => tag === 'pre', |
|
decodeEntities: decodeHtmlBrowser , |
|
isBuiltInComponent: (tag) => { |
|
if (isBuiltInType(tag, `Transition`)) { |
|
return TRANSITION; |
|
} |
|
else if (isBuiltInType(tag, `TransitionGroup`)) { |
|
return TRANSITION_GROUP; |
|
} |
|
}, |
|
// https://html.spec.whatwg.org/multipage/parsing.html#tree-construction-dispatcher |
|
getNamespace(tag, parent) { |
|
let ns = parent ? parent.ns : 0 /* HTML */; |
|
if (parent && ns === 2 /* MATH_ML */) { |
|
if (parent.tag === 'annotation-xml') { |
|
if (tag === 'svg') { |
|
return 1 /* SVG */; |
|
} |
|
if (parent.props.some(a => a.type === 6 /* ATTRIBUTE */ && |
|
a.name === 'encoding' && |
|
a.value != null && |
|
(a.value.content === 'text/html' || |
|
a.value.content === 'application/xhtml+xml'))) { |
|
ns = 0 /* HTML */; |
|
} |
|
} |
|
else if (/^m(?:[ions]|text)$/.test(parent.tag) && |
|
tag !== 'mglyph' && |
|
tag !== 'malignmark') { |
|
ns = 0 /* HTML */; |
|
} |
|
} |
|
else if (parent && ns === 1 /* SVG */) { |
|
if (parent.tag === 'foreignObject' || |
|
parent.tag === 'desc' || |
|
parent.tag === 'title') { |
|
ns = 0 /* HTML */; |
|
} |
|
} |
|
if (ns === 0 /* HTML */) { |
|
if (tag === 'svg') { |
|
return 1 /* SVG */; |
|
} |
|
if (tag === 'math') { |
|
return 2 /* MATH_ML */; |
|
} |
|
} |
|
return ns; |
|
}, |
|
// https://html.spec.whatwg.org/multipage/parsing.html#parsing-html-fragments |
|
getTextMode({ tag, ns }) { |
|
if (ns === 0 /* HTML */) { |
|
if (tag === 'textarea' || tag === 'title') { |
|
return 1 /* RCDATA */; |
|
} |
|
if (isRawTextContainer(tag)) { |
|
return 2 /* RAWTEXT */; |
|
} |
|
} |
|
return 0 /* DATA */; |
|
} |
|
}; |
|
|
|
// Parse inline CSS strings for static style attributes into an object. |
|
// This is a NodeTransform since it works on the static `style` attribute and |
|
// converts it into a dynamic equivalent: |
|
// style="color: red" -> :style='{ "color": "red" }' |
|
// It is then processed by `transformElement` and included in the generated |
|
// props. |
|
const transformStyle = node => { |
|
if (node.type === 1 /* ELEMENT */) { |
|
node.props.forEach((p, i) => { |
|
if (p.type === 6 /* ATTRIBUTE */ && p.name === 'style' && p.value) { |
|
// replace p with an expression node |
|
node.props[i] = { |
|
type: 7 /* DIRECTIVE */, |
|
name: `bind`, |
|
arg: createSimpleExpression(`style`, true, p.loc), |
|
exp: parseInlineCSS(p.value.content, p.loc), |
|
modifiers: [], |
|
loc: p.loc |
|
}; |
|
} |
|
}); |
|
} |
|
}; |
|
const parseInlineCSS = (cssText, loc) => { |
|
const normalized = parseStringStyle(cssText); |
|
return createSimpleExpression(JSON.stringify(normalized), false, loc, 3 /* CAN_STRINGIFY */); |
|
}; |
|
|
|
function createDOMCompilerError(code, loc) { |
|
return createCompilerError(code, loc, DOMErrorMessages ); |
|
} |
|
const DOMErrorMessages = { |
|
[50 /* X_V_HTML_NO_EXPRESSION */]: `v-html is missing expression.`, |
|
[51 /* X_V_HTML_WITH_CHILDREN */]: `v-html will override element children.`, |
|
[52 /* X_V_TEXT_NO_EXPRESSION */]: `v-text is missing expression.`, |
|
[53 /* X_V_TEXT_WITH_CHILDREN */]: `v-text will override element children.`, |
|
[54 /* X_V_MODEL_ON_INVALID_ELEMENT */]: `v-model can only be used on <input>, <textarea> and <select> elements.`, |
|
[55 /* X_V_MODEL_ARG_ON_ELEMENT */]: `v-model argument is not supported on plain elements.`, |
|
[56 /* X_V_MODEL_ON_FILE_INPUT_ELEMENT */]: `v-model cannot be used on file inputs since they are read-only. Use a v-on:change listener instead.`, |
|
[57 /* X_V_MODEL_UNNECESSARY_VALUE */]: `Unnecessary value binding used alongside v-model. It will interfere with v-model's behavior.`, |
|
[58 /* X_V_SHOW_NO_EXPRESSION */]: `v-show is missing expression.`, |
|
[59 /* X_TRANSITION_INVALID_CHILDREN */]: `<Transition> expects exactly one child element or component.`, |
|
[60 /* X_IGNORED_SIDE_EFFECT_TAG */]: `Tags with side effect (<script> and <style>) are ignored in client component templates.` |
|
}; |
|
|
|
const transformVHtml = (dir, node, context) => { |
|
const { exp, loc } = dir; |
|
if (!exp) { |
|
context.onError(createDOMCompilerError(50 /* X_V_HTML_NO_EXPRESSION */, loc)); |
|
} |
|
if (node.children.length) { |
|
context.onError(createDOMCompilerError(51 /* X_V_HTML_WITH_CHILDREN */, loc)); |
|
node.children.length = 0; |
|
} |
|
return { |
|
props: [ |
|
createObjectProperty(createSimpleExpression(`innerHTML`, true, loc), exp || createSimpleExpression('', true)) |
|
] |
|
}; |
|
}; |
|
|
|
const transformVText = (dir, node, context) => { |
|
const { exp, loc } = dir; |
|
if (!exp) { |
|
context.onError(createDOMCompilerError(52 /* X_V_TEXT_NO_EXPRESSION */, loc)); |
|
} |
|
if (node.children.length) { |
|
context.onError(createDOMCompilerError(53 /* X_V_TEXT_WITH_CHILDREN */, loc)); |
|
node.children.length = 0; |
|
} |
|
return { |
|
props: [ |
|
createObjectProperty(createSimpleExpression(`textContent`, true), exp |
|
? getConstantType(exp, context) > 0 |
|
? exp |
|
: createCallExpression(context.helperString(TO_DISPLAY_STRING), [exp], loc) |
|
: createSimpleExpression('', true)) |
|
] |
|
}; |
|
}; |
|
|
|
const transformModel$1 = (dir, node, context) => { |
|
const baseResult = transformModel(dir, node, context); |
|
// base transform has errors OR component v-model (only need props) |
|
if (!baseResult.props.length || node.tagType === 1 /* COMPONENT */) { |
|
return baseResult; |
|
} |
|
if (dir.arg) { |
|
context.onError(createDOMCompilerError(55 /* X_V_MODEL_ARG_ON_ELEMENT */, dir.arg.loc)); |
|
} |
|
function checkDuplicatedValue() { |
|
const value = findProp(node, 'value'); |
|
if (value) { |
|
context.onError(createDOMCompilerError(57 /* X_V_MODEL_UNNECESSARY_VALUE */, value.loc)); |
|
} |
|
} |
|
const { tag } = node; |
|
const isCustomElement = context.isCustomElement(tag); |
|
if (tag === 'input' || |
|
tag === 'textarea' || |
|
tag === 'select' || |
|
isCustomElement) { |
|
let directiveToUse = V_MODEL_TEXT; |
|
let isInvalidType = false; |
|
if (tag === 'input' || isCustomElement) { |
|
const type = findProp(node, `type`); |
|
if (type) { |
|
if (type.type === 7 /* DIRECTIVE */) { |
|
// :type="foo" |
|
directiveToUse = V_MODEL_DYNAMIC; |
|
} |
|
else if (type.value) { |
|
switch (type.value.content) { |
|
case 'radio': |
|
directiveToUse = V_MODEL_RADIO; |
|
break; |
|
case 'checkbox': |
|
directiveToUse = V_MODEL_CHECKBOX; |
|
break; |
|
case 'file': |
|
isInvalidType = true; |
|
context.onError(createDOMCompilerError(56 /* X_V_MODEL_ON_FILE_INPUT_ELEMENT */, dir.loc)); |
|
break; |
|
default: |
|
// text type |
|
checkDuplicatedValue(); |
|
break; |
|
} |
|
} |
|
} |
|
else if (hasDynamicKeyVBind(node)) { |
|
// element has bindings with dynamic keys, which can possibly contain |
|
// "type". |
|
directiveToUse = V_MODEL_DYNAMIC; |
|
} |
|
else { |
|
// text type |
|
checkDuplicatedValue(); |
|
} |
|
} |
|
else if (tag === 'select') { |
|
directiveToUse = V_MODEL_SELECT; |
|
} |
|
else { |
|
// textarea |
|
checkDuplicatedValue(); |
|
} |
|
// inject runtime directive |
|
// by returning the helper symbol via needRuntime |
|
// the import will replaced a resolveDirective call. |
|
if (!isInvalidType) { |
|
baseResult.needRuntime = context.helper(directiveToUse); |
|
} |
|
} |
|
else { |
|
context.onError(createDOMCompilerError(54 /* X_V_MODEL_ON_INVALID_ELEMENT */, dir.loc)); |
|
} |
|
// native vmodel doesn't need the `modelValue` props since they are also |
|
// passed to the runtime as `binding.value`. removing it reduces code size. |
|
baseResult.props = baseResult.props.filter(p => !(p.key.type === 4 /* SIMPLE_EXPRESSION */ && |
|
p.key.content === 'modelValue')); |
|
return baseResult; |
|
}; |
|
|
|
const isEventOptionModifier = /*#__PURE__*/ makeMap(`passive,once,capture`); |
|
const isNonKeyModifier = /*#__PURE__*/ makeMap( |
|
// event propagation management |
|
`stop,prevent,self,` + |
|
// system modifiers + exact |
|
`ctrl,shift,alt,meta,exact,` + |
|
// mouse |
|
`middle`); |
|
// left & right could be mouse or key modifiers based on event type |
|
const maybeKeyModifier = /*#__PURE__*/ makeMap('left,right'); |
|
const isKeyboardEvent = /*#__PURE__*/ makeMap(`onkeyup,onkeydown,onkeypress`, true); |
|
const resolveModifiers = (key, modifiers, context, loc) => { |
|
const keyModifiers = []; |
|
const nonKeyModifiers = []; |
|
const eventOptionModifiers = []; |
|
for (let i = 0; i < modifiers.length; i++) { |
|
const modifier = modifiers[i]; |
|
if (modifier === 'native' && |
|
checkCompatEnabled("COMPILER_V_ON_NATIVE" /* COMPILER_V_ON_NATIVE */, context, loc)) { |
|
eventOptionModifiers.push(modifier); |
|
} |
|
else if (isEventOptionModifier(modifier)) { |
|
// eventOptionModifiers: modifiers for addEventListener() options, |
|
// e.g. .passive & .capture |
|
eventOptionModifiers.push(modifier); |
|
} |
|
else { |
|
// runtimeModifiers: modifiers that needs runtime guards |
|
if (maybeKeyModifier(modifier)) { |
|
if (isStaticExp(key)) { |
|
if (isKeyboardEvent(key.content)) { |
|
keyModifiers.push(modifier); |
|
} |
|
else { |
|
nonKeyModifiers.push(modifier); |
|
} |
|
} |
|
else { |
|
keyModifiers.push(modifier); |
|
nonKeyModifiers.push(modifier); |
|
} |
|
} |
|
else { |
|
if (isNonKeyModifier(modifier)) { |
|
nonKeyModifiers.push(modifier); |
|
} |
|
else { |
|
keyModifiers.push(modifier); |
|
} |
|
} |
|
} |
|
} |
|
return { |
|
keyModifiers, |
|
nonKeyModifiers, |
|
eventOptionModifiers |
|
}; |
|
}; |
|
const transformClick = (key, event) => { |
|
const isStaticClick = isStaticExp(key) && key.content.toLowerCase() === 'onclick'; |
|
return isStaticClick |
|
? createSimpleExpression(event, true) |
|
: key.type !== 4 /* SIMPLE_EXPRESSION */ |
|
? createCompoundExpression([ |
|
`(`, |
|
key, |
|
`) === "onClick" ? "${event}" : (`, |
|
key, |
|
`)` |
|
]) |
|
: key; |
|
}; |
|
const transformOn$1 = (dir, node, context) => { |
|
return transformOn(dir, node, context, baseResult => { |
|
const { modifiers } = dir; |
|
if (!modifiers.length) |
|
return baseResult; |
|
let { key, value: handlerExp } = baseResult.props[0]; |
|
const { keyModifiers, nonKeyModifiers, eventOptionModifiers } = resolveModifiers(key, modifiers, context, dir.loc); |
|
// normalize click.right and click.middle since they don't actually fire |
|
if (nonKeyModifiers.includes('right')) { |
|
key = transformClick(key, `onContextmenu`); |
|
} |
|
if (nonKeyModifiers.includes('middle')) { |
|
key = transformClick(key, `onMouseup`); |
|
} |
|
if (nonKeyModifiers.length) { |
|
handlerExp = createCallExpression(context.helper(V_ON_WITH_MODIFIERS), [ |
|
handlerExp, |
|
JSON.stringify(nonKeyModifiers) |
|
]); |
|
} |
|
if (keyModifiers.length && |
|
// if event name is dynamic, always wrap with keys guard |
|
(!isStaticExp(key) || isKeyboardEvent(key.content))) { |
|
handlerExp = createCallExpression(context.helper(V_ON_WITH_KEYS), [ |
|
handlerExp, |
|
JSON.stringify(keyModifiers) |
|
]); |
|
} |
|
if (eventOptionModifiers.length) { |
|
const modifierPostfix = eventOptionModifiers.map(capitalize).join(''); |
|
key = isStaticExp(key) |
|
? createSimpleExpression(`${key.content}${modifierPostfix}`, true) |
|
: createCompoundExpression([`(`, key, `) + "${modifierPostfix}"`]); |
|
} |
|
return { |
|
props: [createObjectProperty(key, handlerExp)] |
|
}; |
|
}); |
|
}; |
|
|
|
const transformShow = (dir, node, context) => { |
|
const { exp, loc } = dir; |
|
if (!exp) { |
|
context.onError(createDOMCompilerError(58 /* X_V_SHOW_NO_EXPRESSION */, loc)); |
|
} |
|
return { |
|
props: [], |
|
needRuntime: context.helper(V_SHOW) |
|
}; |
|
}; |
|
|
|
const transformTransition = (node, context) => { |
|
if (node.type === 1 /* ELEMENT */ && |
|
node.tagType === 1 /* COMPONENT */) { |
|
const component = context.isBuiltInComponent(node.tag); |
|
if (component === TRANSITION) { |
|
return () => { |
|
if (!node.children.length) { |
|
return; |
|
} |
|
// warn multiple transition children |
|
if (hasMultipleChildren(node)) { |
|
context.onError(createDOMCompilerError(59 /* X_TRANSITION_INVALID_CHILDREN */, { |
|
start: node.children[0].loc.start, |
|
end: node.children[node.children.length - 1].loc.end, |
|
source: '' |
|
})); |
|
} |
|
// check if it's s single child w/ v-show |
|
// if yes, inject "persisted: true" to the transition props |
|
const child = node.children[0]; |
|
if (child.type === 1 /* ELEMENT */) { |
|
for (const p of child.props) { |
|
if (p.type === 7 /* DIRECTIVE */ && p.name === 'show') { |
|
node.props.push({ |
|
type: 6 /* ATTRIBUTE */, |
|
name: 'persisted', |
|
value: undefined, |
|
loc: node.loc |
|
}); |
|
} |
|
} |
|
} |
|
}; |
|
} |
|
} |
|
}; |
|
function hasMultipleChildren(node) { |
|
// #1352 filter out potential comment nodes. |
|
const children = (node.children = node.children.filter(c => c.type !== 3 /* COMMENT */ && |
|
!(c.type === 2 /* TEXT */ && !c.content.trim()))); |
|
const child = children[0]; |
|
return (children.length !== 1 || |
|
child.type === 11 /* FOR */ || |
|
(child.type === 9 /* IF */ && child.branches.some(hasMultipleChildren))); |
|
} |
|
|
|
const ignoreSideEffectTags = (node, context) => { |
|
if (node.type === 1 /* ELEMENT */ && |
|
node.tagType === 0 /* ELEMENT */ && |
|
(node.tag === 'script' || node.tag === 'style')) { |
|
context.onError(createDOMCompilerError(60 /* X_IGNORED_SIDE_EFFECT_TAG */, node.loc)); |
|
context.removeNode(); |
|
} |
|
}; |
|
|
|
const DOMNodeTransforms = [ |
|
transformStyle, |
|
...([transformTransition] ) |
|
]; |
|
const DOMDirectiveTransforms = { |
|
cloak: noopDirectiveTransform, |
|
html: transformVHtml, |
|
text: transformVText, |
|
model: transformModel$1, |
|
on: transformOn$1, |
|
show: transformShow |
|
}; |
|
function compile(template, options = {}) { |
|
return baseCompile(template, extend({}, parserOptions, options, { |
|
nodeTransforms: [ |
|
// ignore <script> and <tag> |
|
// this is not put inside DOMNodeTransforms because that list is used |
|
// by compiler-ssr to generate vnode fallback branches |
|
ignoreSideEffectTags, |
|
...DOMNodeTransforms, |
|
...(options.nodeTransforms || []) |
|
], |
|
directiveTransforms: extend({}, DOMDirectiveTransforms, options.directiveTransforms || {}), |
|
transformHoist: null |
|
})); |
|
} |
|
function parse(template, options = {}) { |
|
return baseParse(template, extend({}, parserOptions, options)); |
|
} |
|
|
|
export { BASE_TRANSITION, CAMELIZE, CAPITALIZE, CREATE_BLOCK, CREATE_COMMENT, CREATE_ELEMENT_BLOCK, CREATE_ELEMENT_VNODE, CREATE_SLOTS, CREATE_STATIC, CREATE_TEXT, CREATE_VNODE, DOMDirectiveTransforms, DOMNodeTransforms, FRAGMENT, GUARD_REACTIVE_PROPS, IS_MEMO_SAME, IS_REF, KEEP_ALIVE, MERGE_PROPS, NORMALIZE_CLASS, NORMALIZE_PROPS, NORMALIZE_STYLE, OPEN_BLOCK, POP_SCOPE_ID, PUSH_SCOPE_ID, RENDER_LIST, RENDER_SLOT, RESOLVE_COMPONENT, RESOLVE_DIRECTIVE, RESOLVE_DYNAMIC_COMPONENT, RESOLVE_FILTER, SET_BLOCK_TRACKING, SUSPENSE, TELEPORT, TO_DISPLAY_STRING, TO_HANDLERS, TO_HANDLER_KEY, TRANSITION, TRANSITION_GROUP, UNREF, V_MODEL_CHECKBOX, V_MODEL_DYNAMIC, V_MODEL_RADIO, V_MODEL_SELECT, V_MODEL_TEXT, V_ON_WITH_KEYS, V_ON_WITH_MODIFIERS, V_SHOW, WITH_CTX, WITH_DIRECTIVES, WITH_MEMO, advancePositionWithClone, advancePositionWithMutation, assert, baseCompile, baseParse, buildDirectiveArgs, buildProps, buildSlots, checkCompatEnabled, compile, createArrayExpression, createAssignmentExpression, createBlockStatement, createCacheExpression, createCallExpression, createCompilerError, createCompoundExpression, createConditionalExpression, createDOMCompilerError, createForLoopParams, createFunctionExpression, createIfStatement, createInterpolation, createObjectExpression, createObjectProperty, createReturnStatement, createRoot, createSequenceExpression, createSimpleExpression, createStructuralDirectiveTransform, createTemplateLiteral, createTransformContext, createVNodeCall, extractIdentifiers, findDir, findProp, generate, generateCodeFrame, getBaseTransformPreset, getConstantType, getInnerRange, getMemoedVNodeCall, getVNodeBlockHelper, getVNodeHelper, hasDynamicKeyVBind, hasScopeRef, helperNameMap, injectProp, isBuiltInType, isCoreComponent, isFunctionType, isInDestructureAssignment, isMemberExpression, isMemberExpressionBrowser, isMemberExpressionNode, isReferencedIdentifier, isSimpleIdentifier, isSlotOutlet, isStaticArgOf, isStaticExp, isStaticProperty, isStaticPropertyKey, isTemplateNode, isText, isVSlot, locStub, makeBlock, noopDirectiveTransform, parse, parserOptions, processExpression, processFor, processIf, processSlotOutlet, registerRuntimeHelpers, resolveComponentType, toValidAssetId, trackSlotScopes, trackVForSlotScopes, transform, transformBind, transformElement, transformExpression, transformModel, transformOn, transformStyle, traverseNode, walkBlockDeclarations, walkFunctionParams, walkIdentifiers, warnDeprecation };
|
|
|