@vue/compiler-sfc
Version:
@vue/compiler-sfc
1,624 lines (1,487 loc) • 1.68 MB
JavaScript
/**
* @vue/compiler-sfc v3.5.26
* (c) 2018-present Yuxi (Evan) You and Vue contributors
* @license MIT
**/
// @__NO_SIDE_EFFECTS__
function makeMap(str) {
const map = /* @__PURE__ */ Object.create(null);
for (const key of str.split(",")) map[key] = 1;
return (val) => val in map;
}
const EMPTY_OBJ = Object.freeze({}) ;
const NOOP = () => {
};
const NO = () => false;
const isOn = (key) => key.charCodeAt(0) === 111 && key.charCodeAt(1) === 110 && // uppercase letter
(key.charCodeAt(2) > 122 || key.charCodeAt(2) < 97);
const extend = Object.assign;
const hasOwnProperty$3 = Object.prototype.hasOwnProperty;
const hasOwn = (val, key) => hasOwnProperty$3.call(val, key);
const isArray$3 = Array.isArray;
const isMap = (val) => toTypeString(val) === "[object Map]";
const isSet = (val) => toTypeString(val) === "[object Set]";
const isFunction$1 = (val) => typeof val === "function";
const isString$1 = (val) => typeof val === "string";
const isSymbol$1 = (val) => typeof val === "symbol";
const isObject$2 = (val) => val !== null && typeof val === "object";
const objectToString$1 = Object.prototype.toString;
const toTypeString = (value) => objectToString$1.call(value);
const isPlainObject = (val) => toTypeString(val) === "[object Object]";
const isReservedProp = /* @__PURE__ */ makeMap(
// the leading comma is intentional so empty string "" is also included
",key,ref,ref_for,ref_key,onVnodeBeforeMount,onVnodeMounted,onVnodeBeforeUpdate,onVnodeUpdated,onVnodeBeforeUnmount,onVnodeUnmounted"
);
const isBuiltInDirective = /* @__PURE__ */ makeMap(
"bind,cloak,else-if,else,for,html,if,model,on,once,pre,show,slot,text,memo"
);
const cacheStringFunction = (fn) => {
const cache = /* @__PURE__ */ Object.create(null);
return ((str) => {
const hit = cache[str];
return hit || (cache[str] = fn(str));
});
};
const camelizeRE = /-\w/g;
const camelize = cacheStringFunction(
(str) => {
return str.replace(camelizeRE, (c) => c.slice(1).toUpperCase());
}
);
const hyphenateRE = /\B([A-Z])/g;
const hyphenate = cacheStringFunction(
(str) => str.replace(hyphenateRE, "-$1").toLowerCase()
);
const capitalize = cacheStringFunction((str) => {
return str.charAt(0).toUpperCase() + str.slice(1);
});
const toHandlerKey = cacheStringFunction(
(str) => {
const s = str ? `on${capitalize(str)}` : ``;
return s;
}
);
const identRE = /^[_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*$/;
function genPropsAccessExp(name) {
return identRE.test(name) ? `__props.${name}` : `__props[${JSON.stringify(name)}]`;
}
function genCacheKey(source, options) {
return source + JSON.stringify(
options,
(_, val) => typeof val === "function" ? val.toString() : val
);
}
const PatchFlagNames = {
[1]: `TEXT`,
[2]: `CLASS`,
[4]: `STYLE`,
[8]: `PROPS`,
[16]: `FULL_PROPS`,
[32]: `NEED_HYDRATION`,
[64]: `STABLE_FRAGMENT`,
[128]: `KEYED_FRAGMENT`,
[256]: `UNKEYED_FRAGMENT`,
[512]: `NEED_PATCH`,
[1024]: `DYNAMIC_SLOTS`,
[2048]: `DEV_ROOT_FRAGMENT`,
[-1]: `CACHED`,
[-2]: `BAIL`
};
const slotFlagsText = {
[1]: "STABLE",
[2]: "DYNAMIC",
[3]: "FORWARDED"
};
const GLOBALS_ALLOWED = "Infinity,undefined,NaN,isFinite,isNaN,parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt,console,Error,Symbol";
const isGloballyAllowed = /* @__PURE__ */ makeMap(GLOBALS_ALLOWED);
const range = 2;
function generateCodeFrame(source, start = 0, end = source.length) {
start = Math.max(0, Math.min(start, source.length));
end = Math.max(0, Math.min(end, source.length));
if (start > end) return "";
let lines = source.split(/(\r?\n)/);
const newlineSequences = lines.filter((_, idx) => idx % 2 === 1);
lines = lines.filter((_, idx) => idx % 2 === 0);
let count = 0;
const res = [];
for (let i = 0; i < lines.length; i++) {
count += lines[i].length + (newlineSequences[i] && newlineSequences[i].length || 0);
if (count >= start) {
for (let j = i - range; j <= i + range || end > count; j++) {
if (j < 0 || j >= lines.length) continue;
const line = j + 1;
res.push(
`${line}${" ".repeat(Math.max(3 - String(line).length, 0))}| ${lines[j]}`
);
const lineLength = lines[j].length;
const newLineSeqLength = newlineSequences[j] && newlineSequences[j].length || 0;
if (j === i) {
const pad = start - (count - (lineLength + newLineSeqLength));
const length = Math.max(
1,
end > count ? lineLength - pad : end - start
);
res.push(` | ` + " ".repeat(pad) + "^".repeat(length));
} else if (j > i) {
if (end > count) {
const length = Math.max(Math.min(end - count, lineLength), 1);
res.push(` | ` + "^".repeat(length));
}
count += lineLength + newLineSeqLength;
}
}
break;
}
}
return res.join("\n");
}
function normalizeStyle(value) {
if (isArray$3(value)) {
const res = {};
for (let i = 0; i < value.length; i++) {
const item = value[i];
const normalized = isString$1(item) ? parseStringStyle(item) : normalizeStyle(item);
if (normalized) {
for (const key in normalized) {
res[key] = normalized[key];
}
}
}
return res;
} else if (isString$1(value) || isObject$2(value)) {
return value;
}
}
const listDelimiterRE = /;(?![^(]*\))/g;
const propertyDelimiterRE = /:([^]+)/;
const styleCommentRE = /\/\*[^]*?\*\//g;
function parseStringStyle(cssText) {
const ret = {};
cssText.replace(styleCommentRE, "").split(listDelimiterRE).forEach((item) => {
if (item) {
const tmp = item.split(propertyDelimiterRE);
tmp.length > 1 && (ret[tmp[0].trim()] = tmp[1].trim());
}
});
return ret;
}
function stringifyStyle(styles) {
if (!styles) return "";
if (isString$1(styles)) return styles;
let ret = "";
for (const key in styles) {
const value = styles[key];
if (isString$1(value) || typeof value === "number") {
const normalizedKey = key.startsWith(`--`) ? key : hyphenate(key);
ret += `${normalizedKey}:${value};`;
}
}
return ret;
}
function normalizeClass(value) {
let res = "";
if (isString$1(value)) {
res = value;
} else if (isArray$3(value)) {
for (let i = 0; i < value.length; i++) {
const normalized = normalizeClass(value[i]);
if (normalized) {
res += normalized + " ";
}
}
} else if (isObject$2(value)) {
for (const name in value) {
if (value[name]) {
res += name + " ";
}
}
}
return res.trim();
}
const HTML_TAGS = "html,body,base,head,link,meta,style,title,address,article,aside,footer,header,hgroup,h1,h2,h3,h4,h5,h6,nav,section,div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,ruby,s,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,embed,object,param,source,canvas,script,noscript,del,ins,caption,col,colgroup,table,thead,tbody,td,th,tr,button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,output,progress,select,textarea,details,dialog,menu,summary,template,blockquote,iframe,tfoot";
const SVG_TAGS = "svg,animate,animateMotion,animateTransform,circle,clipPath,color-profile,defs,desc,discard,ellipse,feBlend,feColorMatrix,feComponentTransfer,feComposite,feConvolveMatrix,feDiffuseLighting,feDisplacementMap,feDistantLight,feDropShadow,feFlood,feFuncA,feFuncB,feFuncG,feFuncR,feGaussianBlur,feImage,feMerge,feMergeNode,feMorphology,feOffset,fePointLight,feSpecularLighting,feSpotLight,feTile,feTurbulence,filter,foreignObject,g,hatch,hatchpath,image,line,linearGradient,marker,mask,mesh,meshgradient,meshpatch,meshrow,metadata,mpath,path,pattern,polygon,polyline,radialGradient,rect,set,solidcolor,stop,switch,symbol,text,textPath,title,tspan,unknown,use,view";
const MATH_TAGS = "annotation,annotation-xml,maction,maligngroup,malignmark,math,menclose,merror,mfenced,mfrac,mfraction,mglyph,mi,mlabeledtr,mlongdiv,mmultiscripts,mn,mo,mover,mpadded,mphantom,mprescripts,mroot,mrow,ms,mscarries,mscarry,msgroup,msline,mspace,msqrt,msrow,mstack,mstyle,msub,msubsup,msup,mtable,mtd,mtext,mtr,munder,munderover,none,semantics";
const VOID_TAGS = "area,base,br,col,embed,hr,img,input,link,meta,param,source,track,wbr";
const isHTMLTag = /* @__PURE__ */ makeMap(HTML_TAGS);
const isSVGTag = /* @__PURE__ */ makeMap(SVG_TAGS);
const isMathMLTag = /* @__PURE__ */ makeMap(MATH_TAGS);
const isVoidTag = /* @__PURE__ */ makeMap(VOID_TAGS);
const specialBooleanAttrs = `itemscope,allowfullscreen,formnovalidate,ismap,nomodule,novalidate,readonly`;
const isBooleanAttr = /* @__PURE__ */ makeMap(
specialBooleanAttrs + `,async,autofocus,autoplay,controls,default,defer,disabled,hidden,inert,loop,open,required,reversed,scoped,seamless,checked,muted,multiple,selected`
);
const unsafeAttrCharRE = /[>/="'\u0009\u000a\u000c\u0020]/;
const attrValidationCache = {};
function isSSRSafeAttrName(name) {
if (attrValidationCache.hasOwnProperty(name)) {
return attrValidationCache[name];
}
const isUnsafe = unsafeAttrCharRE.test(name);
if (isUnsafe) {
console.error(`unsafe attribute name: ${name}`);
}
return attrValidationCache[name] = !isUnsafe;
}
const propsToAttrMap = {
acceptCharset: "accept-charset",
className: "class",
htmlFor: "for",
httpEquiv: "http-equiv"
};
const isKnownHtmlAttr = /* @__PURE__ */ makeMap(
`accept,accept-charset,accesskey,action,align,allow,alt,async,autocapitalize,autocomplete,autofocus,autoplay,background,bgcolor,border,buffered,capture,challenge,charset,checked,cite,class,code,codebase,color,cols,colspan,content,contenteditable,contextmenu,controls,coords,crossorigin,csp,data,datetime,decoding,default,defer,dir,dirname,disabled,download,draggable,dropzone,enctype,enterkeyhint,for,form,formaction,formenctype,formmethod,formnovalidate,formtarget,headers,height,hidden,high,href,hreflang,http-equiv,icon,id,importance,inert,integrity,ismap,itemprop,keytype,kind,label,lang,language,loading,list,loop,low,manifest,max,maxlength,minlength,media,min,multiple,muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,preload,radiogroup,readonly,referrerpolicy,rel,required,reversed,rows,rowspan,sandbox,scope,scoped,selected,shape,size,sizes,slot,span,spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,target,title,translate,type,usemap,value,width,wrap`
);
const isKnownSvgAttr = /* @__PURE__ */ makeMap(
`xmlns,accent-height,accumulate,additive,alignment-baseline,alphabetic,amplitude,arabic-form,ascent,attributeName,attributeType,azimuth,baseFrequency,baseline-shift,baseProfile,bbox,begin,bias,by,calcMode,cap-height,class,clip,clipPathUnits,clip-path,clip-rule,color,color-interpolation,color-interpolation-filters,color-profile,color-rendering,contentScriptType,contentStyleType,crossorigin,cursor,cx,cy,d,decelerate,descent,diffuseConstant,direction,display,divisor,dominant-baseline,dur,dx,dy,edgeMode,elevation,enable-background,end,exponent,fill,fill-opacity,fill-rule,filter,filterRes,filterUnits,flood-color,flood-opacity,font-family,font-size,font-size-adjust,font-stretch,font-style,font-variant,font-weight,format,from,fr,fx,fy,g1,g2,glyph-name,glyph-orientation-horizontal,glyph-orientation-vertical,glyphRef,gradientTransform,gradientUnits,hanging,height,href,hreflang,horiz-adv-x,horiz-origin-x,id,ideographic,image-rendering,in,in2,intercept,k,k1,k2,k3,k4,kernelMatrix,kernelUnitLength,kerning,keyPoints,keySplines,keyTimes,lang,lengthAdjust,letter-spacing,lighting-color,limitingConeAngle,local,marker-end,marker-mid,marker-start,markerHeight,markerUnits,markerWidth,mask,maskContentUnits,maskUnits,mathematical,max,media,method,min,mode,name,numOctaves,offset,opacity,operator,order,orient,orientation,origin,overflow,overline-position,overline-thickness,panose-1,paint-order,path,pathLength,patternContentUnits,patternTransform,patternUnits,ping,pointer-events,points,pointsAtX,pointsAtY,pointsAtZ,preserveAlpha,preserveAspectRatio,primitiveUnits,r,radius,referrerPolicy,refX,refY,rel,rendering-intent,repeatCount,repeatDur,requiredExtensions,requiredFeatures,restart,result,rotate,rx,ry,scale,seed,shape-rendering,slope,spacing,specularConstant,specularExponent,speed,spreadMethod,startOffset,stdDeviation,stemh,stemv,stitchTiles,stop-color,stop-opacity,strikethrough-position,strikethrough-thickness,string,stroke,stroke-dasharray,stroke-dashoffset,stroke-linecap,stroke-linejoin,stroke-miterlimit,stroke-opacity,stroke-width,style,surfaceScale,systemLanguage,tabindex,tableValues,target,targetX,targetY,text-anchor,text-decoration,text-rendering,textLength,to,transform,transform-origin,type,u1,u2,underline-position,underline-thickness,unicode,unicode-bidi,unicode-range,units-per-em,v-alphabetic,v-hanging,v-ideographic,v-mathematical,values,vector-effect,version,vert-adv-y,vert-origin-x,vert-origin-y,viewBox,viewTarget,visibility,width,widths,word-spacing,writing-mode,x,x-height,x1,x2,xChannelSelector,xlink:actuate,xlink:arcrole,xlink:href,xlink:role,xlink:show,xlink:title,xlink:type,xmlns:xlink,xml:base,xml:lang,xml:space,y,y1,y2,yChannelSelector,z,zoomAndPan`
);
const isKnownMathMLAttr = /* @__PURE__ */ makeMap(
`accent,accentunder,actiontype,align,alignmentscope,altimg,altimg-height,altimg-valign,altimg-width,alttext,bevelled,close,columnsalign,columnlines,columnspan,denomalign,depth,dir,display,displaystyle,encoding,equalcolumns,equalrows,fence,fontstyle,fontweight,form,frame,framespacing,groupalign,height,href,id,indentalign,indentalignfirst,indentalignlast,indentshift,indentshiftfirst,indentshiftlast,indextype,justify,largetop,largeop,lquote,lspace,mathbackground,mathcolor,mathsize,mathvariant,maxsize,minlabelspacing,mode,other,overflow,position,rowalign,rowlines,rowspan,rquote,rspace,scriptlevel,scriptminsize,scriptsizemultiplier,selection,separator,separators,shift,side,src,stackalign,stretchy,subscriptshift,superscriptshift,symmetric,voffset,width,widths,xlink:href,xlink:show,xlink:type,xmlns`
);
const escapeRE = /["'&<>]/;
function escapeHtml(string) {
const str = "" + string;
const match = escapeRE.exec(str);
if (!match) {
return str;
}
let html = "";
let escaped;
let index;
let lastIndex = 0;
for (index = match.index; index < str.length; index++) {
switch (str.charCodeAt(index)) {
case 34:
escaped = """;
break;
case 38:
escaped = "&";
break;
case 39:
escaped = "'";
break;
case 60:
escaped = "<";
break;
case 62:
escaped = ">";
break;
default:
continue;
}
if (lastIndex !== index) {
html += str.slice(lastIndex, index);
}
lastIndex = index + 1;
html += escaped;
}
return lastIndex !== index ? html + str.slice(lastIndex, index) : html;
}
const cssVarNameEscapeSymbolsRE = /[ !"#$%&'()*+,./:;<=>?@[\\\]^`{|}~]/g;
function getEscapedCssVarName(key, doubleEscape) {
return key.replace(
cssVarNameEscapeSymbolsRE,
(s) => doubleEscape ? s === '"' ? '\\\\\\"' : `\\\\${s}` : `\\${s}`
);
}
const isRef = (val) => {
return !!(val && val["__v_isRef"] === true);
};
const toDisplayString = (val) => {
return isString$1(val) ? val : val == null ? "" : isArray$3(val) || isObject$2(val) && (val.toString === objectToString$1 || !isFunction$1(val.toString)) ? isRef(val) ? toDisplayString(val.value) : JSON.stringify(val, replacer, 2) : String(val);
};
const replacer = (_key, val) => {
if (isRef(val)) {
return replacer(_key, val.value);
} else if (isMap(val)) {
return {
[`Map(${val.size})`]: [...val.entries()].reduce(
(entries, [key, val2], i) => {
entries[stringifySymbol(key, i) + " =>"] = val2;
return entries;
},
{}
)
};
} else if (isSet(val)) {
return {
[`Set(${val.size})`]: [...val.values()].map((v) => stringifySymbol(v))
};
} else if (isSymbol$1(val)) {
return stringifySymbol(val);
} else if (isObject$2(val) && !isArray$3(val) && !isPlainObject(val)) {
return String(val);
}
return val;
};
const stringifySymbol = (v, i = "") => {
var _a;
return (
// Symbol.description in es2019+ so we need to cast here to pass
// the lib: es2016 check
isSymbol$1(v) ? `Symbol(${(_a = v.description) != null ? _a : i})` : v
);
};
const FRAGMENT = /* @__PURE__ */ Symbol(`Fragment` );
const TELEPORT = /* @__PURE__ */ Symbol(`Teleport` );
const SUSPENSE = /* @__PURE__ */ Symbol(`Suspense` );
const KEEP_ALIVE = /* @__PURE__ */ Symbol(`KeepAlive` );
const BASE_TRANSITION = /* @__PURE__ */ Symbol(
`BaseTransition`
);
const OPEN_BLOCK = /* @__PURE__ */ Symbol(`openBlock` );
const CREATE_BLOCK = /* @__PURE__ */ Symbol(`createBlock` );
const CREATE_ELEMENT_BLOCK = /* @__PURE__ */ Symbol(
`createElementBlock`
);
const CREATE_VNODE = /* @__PURE__ */ Symbol(`createVNode` );
const CREATE_ELEMENT_VNODE = /* @__PURE__ */ Symbol(
`createElementVNode`
);
const CREATE_COMMENT = /* @__PURE__ */ Symbol(
`createCommentVNode`
);
const CREATE_TEXT = /* @__PURE__ */ Symbol(
`createTextVNode`
);
const CREATE_STATIC = /* @__PURE__ */ Symbol(
`createStaticVNode`
);
const RESOLVE_COMPONENT = /* @__PURE__ */ Symbol(
`resolveComponent`
);
const RESOLVE_DYNAMIC_COMPONENT = /* @__PURE__ */ Symbol(
`resolveDynamicComponent`
);
const RESOLVE_DIRECTIVE = /* @__PURE__ */ Symbol(
`resolveDirective`
);
const RESOLVE_FILTER = /* @__PURE__ */ Symbol(
`resolveFilter`
);
const WITH_DIRECTIVES = /* @__PURE__ */ Symbol(
`withDirectives`
);
const RENDER_LIST = /* @__PURE__ */ Symbol(`renderList` );
const RENDER_SLOT = /* @__PURE__ */ Symbol(`renderSlot` );
const CREATE_SLOTS = /* @__PURE__ */ Symbol(`createSlots` );
const TO_DISPLAY_STRING = /* @__PURE__ */ Symbol(
`toDisplayString`
);
const MERGE_PROPS = /* @__PURE__ */ Symbol(`mergeProps` );
const NORMALIZE_CLASS = /* @__PURE__ */ Symbol(
`normalizeClass`
);
const NORMALIZE_STYLE = /* @__PURE__ */ Symbol(
`normalizeStyle`
);
const NORMALIZE_PROPS = /* @__PURE__ */ Symbol(
`normalizeProps`
);
const GUARD_REACTIVE_PROPS = /* @__PURE__ */ Symbol(
`guardReactiveProps`
);
const TO_HANDLERS = /* @__PURE__ */ Symbol(`toHandlers` );
const CAMELIZE = /* @__PURE__ */ Symbol(`camelize` );
const CAPITALIZE = /* @__PURE__ */ Symbol(`capitalize` );
const TO_HANDLER_KEY = /* @__PURE__ */ Symbol(
`toHandlerKey`
);
const SET_BLOCK_TRACKING = /* @__PURE__ */ Symbol(
`setBlockTracking`
);
const PUSH_SCOPE_ID = /* @__PURE__ */ Symbol(`pushScopeId` );
const POP_SCOPE_ID = /* @__PURE__ */ Symbol(`popScopeId` );
const WITH_CTX = /* @__PURE__ */ Symbol(`withCtx` );
const UNREF = /* @__PURE__ */ Symbol(`unref` );
const IS_REF = /* @__PURE__ */ Symbol(`isRef` );
const WITH_MEMO = /* @__PURE__ */ Symbol(`withMemo` );
const IS_MEMO_SAME = /* @__PURE__ */ Symbol(`isMemoSame` );
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];
});
}
const Namespaces = {
"HTML": 0,
"0": "HTML",
"SVG": 1,
"1": "SVG",
"MATH_ML": 2,
"2": "MATH_ML"
};
const NodeTypes = {
"ROOT": 0,
"0": "ROOT",
"ELEMENT": 1,
"1": "ELEMENT",
"TEXT": 2,
"2": "TEXT",
"COMMENT": 3,
"3": "COMMENT",
"SIMPLE_EXPRESSION": 4,
"4": "SIMPLE_EXPRESSION",
"INTERPOLATION": 5,
"5": "INTERPOLATION",
"ATTRIBUTE": 6,
"6": "ATTRIBUTE",
"DIRECTIVE": 7,
"7": "DIRECTIVE",
"COMPOUND_EXPRESSION": 8,
"8": "COMPOUND_EXPRESSION",
"IF": 9,
"9": "IF",
"IF_BRANCH": 10,
"10": "IF_BRANCH",
"FOR": 11,
"11": "FOR",
"TEXT_CALL": 12,
"12": "TEXT_CALL",
"VNODE_CALL": 13,
"13": "VNODE_CALL",
"JS_CALL_EXPRESSION": 14,
"14": "JS_CALL_EXPRESSION",
"JS_OBJECT_EXPRESSION": 15,
"15": "JS_OBJECT_EXPRESSION",
"JS_PROPERTY": 16,
"16": "JS_PROPERTY",
"JS_ARRAY_EXPRESSION": 17,
"17": "JS_ARRAY_EXPRESSION",
"JS_FUNCTION_EXPRESSION": 18,
"18": "JS_FUNCTION_EXPRESSION",
"JS_CONDITIONAL_EXPRESSION": 19,
"19": "JS_CONDITIONAL_EXPRESSION",
"JS_CACHE_EXPRESSION": 20,
"20": "JS_CACHE_EXPRESSION",
"JS_BLOCK_STATEMENT": 21,
"21": "JS_BLOCK_STATEMENT",
"JS_TEMPLATE_LITERAL": 22,
"22": "JS_TEMPLATE_LITERAL",
"JS_IF_STATEMENT": 23,
"23": "JS_IF_STATEMENT",
"JS_ASSIGNMENT_EXPRESSION": 24,
"24": "JS_ASSIGNMENT_EXPRESSION",
"JS_SEQUENCE_EXPRESSION": 25,
"25": "JS_SEQUENCE_EXPRESSION",
"JS_RETURN_STATEMENT": 26,
"26": "JS_RETURN_STATEMENT"
};
const ElementTypes = {
"ELEMENT": 0,
"0": "ELEMENT",
"COMPONENT": 1,
"1": "COMPONENT",
"SLOT": 2,
"2": "SLOT",
"TEMPLATE": 3,
"3": "TEMPLATE"
};
const ConstantTypes = {
"NOT_CONSTANT": 0,
"0": "NOT_CONSTANT",
"CAN_SKIP_PATCH": 1,
"1": "CAN_SKIP_PATCH",
"CAN_CACHE": 2,
"2": "CAN_CACHE",
"CAN_STRINGIFY": 3,
"3": "CAN_STRINGIFY"
};
const locStub = {
start: { line: 1, column: 1, offset: 0 },
end: { line: 1, column: 1, offset: 0 },
source: ""
};
function createRoot(children, source = "") {
return {
type: 0,
source,
children,
helpers: /* @__PURE__ */ new Set(),
components: [],
directives: [],
hoists: [],
imports: [],
cached: [],
temps: 0,
codegenNode: void 0,
loc: locStub
};
}
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,
tag,
props,
children,
patchFlag,
dynamicProps,
directives,
isBlock,
disableTracking,
isComponent,
loc
};
}
function createArrayExpression(elements, loc = locStub) {
return {
type: 17,
loc,
elements
};
}
function createObjectExpression(properties, loc = locStub) {
return {
type: 15,
loc,
properties
};
}
function createObjectProperty(key, value) {
return {
type: 16,
loc: locStub,
key: isString$1(key) ? createSimpleExpression(key, true) : key,
value
};
}
function createSimpleExpression(content, isStatic = false, loc = locStub, constType = 0) {
return {
type: 4,
loc,
content,
isStatic,
constType: isStatic ? 3 : constType
};
}
function createInterpolation(content, loc) {
return {
type: 5,
loc,
content: isString$1(content) ? createSimpleExpression(content, false, loc) : content
};
}
function createCompoundExpression(children, loc = locStub) {
return {
type: 8,
loc,
children
};
}
function createCallExpression(callee, args = [], loc = locStub) {
return {
type: 14,
loc,
callee,
arguments: args
};
}
function createFunctionExpression(params, returns = void 0, newline = false, isSlot = false, loc = locStub) {
return {
type: 18,
params,
returns,
newline,
isSlot,
loc
};
}
function createConditionalExpression(test, consequent, alternate, newline = true) {
return {
type: 19,
test,
consequent,
alternate,
newline,
loc: locStub
};
}
function createCacheExpression(index, value, needPauseTracking = false, inVOnce = false) {
return {
type: 20,
index,
value,
needPauseTracking,
inVOnce,
needArraySpread: false,
loc: locStub
};
}
function createBlockStatement(body) {
return {
type: 21,
body,
loc: locStub
};
}
function createTemplateLiteral(elements) {
return {
type: 22,
elements,
loc: locStub
};
}
function createIfStatement(test, consequent, alternate) {
return {
type: 23,
test,
consequent,
alternate,
loc: locStub
};
}
function createAssignmentExpression(left, right) {
return {
type: 24,
left,
right,
loc: locStub
};
}
function createSequenceExpression(expressions) {
return {
type: 25,
expressions,
loc: locStub
};
}
function createReturnStatement(returns) {
return {
type: 26,
returns,
loc: locStub
};
}
function getVNodeHelper(ssr, isComponent) {
return ssr || isComponent ? CREATE_VNODE : CREATE_ELEMENT_VNODE;
}
function getVNodeBlockHelper(ssr, isComponent) {
return ssr || isComponent ? CREATE_BLOCK : CREATE_ELEMENT_BLOCK;
}
function convertToBlock(node, { helper, removeHelper, inSSR }) {
if (!node.isBlock) {
node.isBlock = true;
removeHelper(getVNodeHelper(inSSR, node.isComponent));
helper(OPEN_BLOCK);
helper(getVNodeBlockHelper(inSSR, node.isComponent));
}
}
// Adapted from https://github.com/mathiasbynens/he/blob/36afe179392226cf1b6ccdb16ebbb7a5a844d93a/src/he.js#L106-L134
var _a$1;
const decodeMap = new Map([
[0, 65533],
// C1 Unicode control character reference replacements
[128, 8364],
[130, 8218],
[131, 402],
[132, 8222],
[133, 8230],
[134, 8224],
[135, 8225],
[136, 710],
[137, 8240],
[138, 352],
[139, 8249],
[140, 338],
[142, 381],
[145, 8216],
[146, 8217],
[147, 8220],
[148, 8221],
[149, 8226],
[150, 8211],
[151, 8212],
[152, 732],
[153, 8482],
[154, 353],
[155, 8250],
[156, 339],
[158, 382],
[159, 376],
]);
/**
* Polyfill for `String.fromCodePoint`. It is used to create a string from a Unicode code point.
*/
const fromCodePoint =
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition, n/no-unsupported-features/es-builtins
(_a$1 = String.fromCodePoint) !== null && _a$1 !== void 0 ? _a$1 : ((codePoint) => {
let output = "";
if (codePoint > 65535) {
codePoint -= 65536;
output += String.fromCharCode(((codePoint >>> 10) & 1023) | 55296);
codePoint = 56320 | (codePoint & 1023);
}
output += String.fromCharCode(codePoint);
return output;
});
/**
* Replace the given code point with a replacement character if it is a
* surrogate or is outside the valid range. Otherwise return the code
* point unchanged.
*/
function replaceCodePoint(codePoint) {
var _a;
if ((codePoint >= 55296 && codePoint <= 57343) ||
codePoint > 1114111) {
return 65533;
}
return (_a = decodeMap.get(codePoint)) !== null && _a !== void 0 ? _a : codePoint;
}
var global$1 = (typeof global !== "undefined" ? global :
typeof self !== "undefined" ? self :
typeof window !== "undefined" ? window : {});
var lookup = [];
var revLookup = [];
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array;
var inited = false;
function init () {
inited = true;
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
for (var i = 0, len = code.length; i < len; ++i) {
lookup[i] = code[i];
revLookup[code.charCodeAt(i)] = i;
}
revLookup['-'.charCodeAt(0)] = 62;
revLookup['_'.charCodeAt(0)] = 63;
}
function toByteArray (b64) {
if (!inited) {
init();
}
var i, j, l, tmp, placeHolders, arr;
var len = b64.length;
if (len % 4 > 0) {
throw new Error('Invalid string. Length must be a multiple of 4')
}
// the number of equal signs (place holders)
// if there are two placeholders, than the two characters before it
// represent one byte
// if there is only one, then the three characters before it represent 2 bytes
// this is just a cheap hack to not do indexOf twice
placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0;
// base64 is 4/3 + up to two characters of the original data
arr = new Arr(len * 3 / 4 - placeHolders);
// if there are placeholders, only get up to the last complete 4 chars
l = placeHolders > 0 ? len - 4 : len;
var L = 0;
for (i = 0, j = 0; i < l; i += 4, j += 3) {
tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)];
arr[L++] = (tmp >> 16) & 0xFF;
arr[L++] = (tmp >> 8) & 0xFF;
arr[L++] = tmp & 0xFF;
}
if (placeHolders === 2) {
tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4);
arr[L++] = tmp & 0xFF;
} else if (placeHolders === 1) {
tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2);
arr[L++] = (tmp >> 8) & 0xFF;
arr[L++] = tmp & 0xFF;
}
return arr
}
function tripletToBase64 (num) {
return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
}
function encodeChunk (uint8, start, end) {
var tmp;
var output = [];
for (var i = start; i < end; i += 3) {
tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]);
output.push(tripletToBase64(tmp));
}
return output.join('')
}
function fromByteArray (uint8) {
if (!inited) {
init();
}
var tmp;
var len = uint8.length;
var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes
var output = '';
var parts = [];
var maxChunkLength = 16383; // must be multiple of 3
// go through the array every three bytes, we'll deal with trailing stuff later
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)));
}
// pad the end with zeros, but make sure to not forget the extra bytes
if (extraBytes === 1) {
tmp = uint8[len - 1];
output += lookup[tmp >> 2];
output += lookup[(tmp << 4) & 0x3F];
output += '==';
} else if (extraBytes === 2) {
tmp = (uint8[len - 2] << 8) + (uint8[len - 1]);
output += lookup[tmp >> 10];
output += lookup[(tmp >> 4) & 0x3F];
output += lookup[(tmp << 2) & 0x3F];
output += '=';
}
parts.push(output);
return parts.join('')
}
function read (buffer, offset, isLE, mLen, nBytes) {
var e, m;
var eLen = nBytes * 8 - mLen - 1;
var eMax = (1 << eLen) - 1;
var eBias = eMax >> 1;
var nBits = -7;
var i = isLE ? (nBytes - 1) : 0;
var d = isLE ? -1 : 1;
var s = buffer[offset + i];
i += d;
e = s & ((1 << (-nBits)) - 1);
s >>= (-nBits);
nBits += eLen;
for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
m = e & ((1 << (-nBits)) - 1);
e >>= (-nBits);
nBits += mLen;
for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
if (e === 0) {
e = 1 - eBias;
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen);
e = e - eBias;
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
function write (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c;
var eLen = nBytes * 8 - mLen - 1;
var eMax = (1 << eLen) - 1;
var eBias = eMax >> 1;
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0);
var i = isLE ? 0 : (nBytes - 1);
var d = isLE ? 1 : -1;
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
value = Math.abs(value);
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0;
e = eMax;
} else {
e = Math.floor(Math.log(value) / Math.LN2);
if (value * (c = Math.pow(2, -e)) < 1) {
e--;
c *= 2;
}
if (e + eBias >= 1) {
value += rt / c;
} else {
value += rt * Math.pow(2, 1 - eBias);
}
if (value * c >= 2) {
e++;
c /= 2;
}
if (e + eBias >= eMax) {
m = 0;
e = eMax;
} else if (e + eBias >= 1) {
m = (value * c - 1) * Math.pow(2, mLen);
e = e + eBias;
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
e = 0;
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
e = (e << mLen) | m;
eLen += mLen;
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
buffer[offset + i - d] |= s * 128;
}
var toString$1 = {}.toString;
var isArray$2 = Array.isArray || function (arr) {
return toString$1.call(arr) == '[object Array]';
};
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
var INSPECT_MAX_BYTES = 50;
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Use Object implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* Due to various browser bugs, sometimes the Object implementation will be used even
* when the browser supports typed arrays.
*
* Note:
*
* - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
* See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
*
* - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
*
* - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
* incorrect length in some situations.
* We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
* get the Object implementation, which is slower but behaves correctly.
*/
Buffer$1.TYPED_ARRAY_SUPPORT = global$1.TYPED_ARRAY_SUPPORT !== undefined
? global$1.TYPED_ARRAY_SUPPORT
: true;
/*
* Export kMaxLength after typed array support is determined.
*/
kMaxLength();
function kMaxLength () {
return Buffer$1.TYPED_ARRAY_SUPPORT
? 0x7fffffff
: 0x3fffffff
}
function createBuffer (that, length) {
if (kMaxLength() < length) {
throw new RangeError('Invalid typed array length')
}
if (Buffer$1.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = new Uint8Array(length);
that.__proto__ = Buffer$1.prototype;
} else {
// Fallback: Return an object instance of the Buffer class
if (that === null) {
that = new Buffer$1(length);
}
that.length = length;
}
return that
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer$1 (arg, encodingOrOffset, length) {
if (!Buffer$1.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer$1)) {
return new Buffer$1(arg, encodingOrOffset, length)
}
// Common case.
if (typeof arg === 'number') {
if (typeof encodingOrOffset === 'string') {
throw new Error(
'If encoding is specified then the first argument must be a string'
)
}
return allocUnsafe(this, arg)
}
return from(this, arg, encodingOrOffset, length)
}
Buffer$1.poolSize = 8192; // not used by this implementation
// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer$1._augment = function (arr) {
arr.__proto__ = Buffer$1.prototype;
return arr
};
function from (that, value, encodingOrOffset, length) {
if (typeof value === 'number') {
throw new TypeError('"value" argument must not be a number')
}
if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
return fromArrayBuffer(that, value, encodingOrOffset, length)
}
if (typeof value === 'string') {
return fromString(that, value, encodingOrOffset)
}
return fromObject(that, value)
}
/**
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
* if value is a number.
* Buffer.from(str[, encoding])
* Buffer.from(array)
* Buffer.from(buffer)
* Buffer.from(arrayBuffer[, byteOffset[, length]])
**/
Buffer$1.from = function (value, encodingOrOffset, length) {
return from(null, value, encodingOrOffset, length)
};
if (Buffer$1.TYPED_ARRAY_SUPPORT) {
Buffer$1.prototype.__proto__ = Uint8Array.prototype;
Buffer$1.__proto__ = Uint8Array;
if (typeof Symbol !== 'undefined' && Symbol.species &&
Buffer$1[Symbol.species] === Buffer$1) ;
}
function assertSize (size) {
if (typeof size !== 'number') {
throw new TypeError('"size" argument must be a number')
} else if (size < 0) {
throw new RangeError('"size" argument must not be negative')
}
}
function alloc (that, size, fill, encoding) {
assertSize(size);
if (size <= 0) {
return createBuffer(that, size)
}
if (fill !== undefined) {
// Only pay attention to encoding if it's a string. This
// prevents accidentally sending in a number that would
// be interpretted as a start offset.
return typeof encoding === 'string'
? createBuffer(that, size).fill(fill, encoding)
: createBuffer(that, size).fill(fill)
}
return createBuffer(that, size)
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer$1.alloc = function (size, fill, encoding) {
return alloc(null, size, fill, encoding)
};
function allocUnsafe (that, size) {
assertSize(size);
that = createBuffer(that, size < 0 ? 0 : checked(size) | 0);
if (!Buffer$1.TYPED_ARRAY_SUPPORT) {
for (var i = 0; i < size; ++i) {
that[i] = 0;
}
}
return that
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer$1.allocUnsafe = function (size) {
return allocUnsafe(null, size)
};
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer$1.allocUnsafeSlow = function (size) {
return allocUnsafe(null, size)
};
function fromString (that, string, encoding) {
if (typeof encoding !== 'string' || encoding === '') {
encoding = 'utf8';
}
if (!Buffer$1.isEncoding(encoding)) {
throw new TypeError('"encoding" must be a valid string encoding')
}
var length = byteLength(string, encoding) | 0;
that = createBuffer(that, length);
var actual = that.write(string, encoding);
if (actual !== length) {
// Writing a hex string, for example, that contains invalid characters will
// cause everything after the first invalid character to be ignored. (e.g.
// 'abxxcd' will be treated as 'ab')
that = that.slice(0, actual);
}
return that
}
function fromArrayLike (that, array) {
var length = array.length < 0 ? 0 : checked(array.length) | 0;
that = createBuffer(that, length);
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255;
}
return that
}
function fromArrayBuffer (that, array, byteOffset, length) {
array.byteLength; // this throws if `array` is not a valid ArrayBuffer
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('\'offset\' is out of bounds')
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('\'length\' is out of bounds')
}
if (byteOffset === undefined && length === undefined) {
array = new Uint8Array(array);
} else if (length === undefined) {
array = new Uint8Array(array, byteOffset);
} else {
array = new Uint8Array(array, byteOffset, length);
}
if (Buffer$1.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = array;
that.__proto__ = Buffer$1.prototype;
} else {
// Fallback: Return an object instance of the Buffer class
that = fromArrayLike(that, array);
}
return that
}
function fromObject (that, obj) {
if (internalIsBuffer(obj)) {
var len = checked(obj.length) | 0;
that = createBuffer(that, len);
if (that.length === 0) {
return that
}
obj.copy(that, 0, 0, len);
return that
}
if (obj) {
if ((typeof ArrayBuffer !== 'undefined' &&
obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
if (typeof obj.length !== 'number' || isnan(obj.length)) {
return createBuffer(that, 0)
}
return fromArrayLike(that, obj)
}
if (obj.type === 'Buffer' && isArray$2(obj.data)) {
return fromArrayLike(that, obj.data)
}
}
throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}
function checked (length) {
// Note: cannot use `length < kMaxLength()` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= kMaxLength()) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + kMaxLength().toString(16) + ' bytes')
}
return length | 0
}
Buffer$1.isBuffer = isBuffer$1;
function internalIsBuffer (b) {
return !!(b != null && b._isBuffer)
}
Buffer$1.compare = function compare (a, b) {
if (!internalIsBuffer(a) || !internalIsBuffer(b)) {
throw new TypeError('Arguments must be Buffers')
}
if (a === b) return 0
var x = a.length;
var y = b.length;
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i];
y = b[i];
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
};
Buffer$1.isEncoding = function isEncoding (encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'latin1':
case 'binary':
case 'base64':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
};
Buffer$1.concat = function concat (list, length) {
if (!isArray$2(list)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
if (list.length === 0) {
return Buffer$1.alloc(0)
}
var i;
if (length === undefined) {
length = 0;
for (i = 0; i < list.length; ++i) {
length += list[i].length;
}
}
var buffer = Buffer$1.allocUnsafe(length);
var pos = 0;
for (i = 0; i < list.length; ++i) {
var buf = list[i];
if (!internalIsBuffer(buf)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
buf.copy(buffer, pos);
pos += buf.length;
}
return buffer
};
function byteLength (string, encoding) {
if (internalIsBuffer(string)) {
return string.length
}
if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
(ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
return string.byteLength
}
if (typeof string !== 'string') {
string = '' + string;
}
var len = string.length;
if (len === 0) return 0
// Use a for loop to avoid recursion
var loweredCase = false;
for (;;) {
switch (encoding) {
case 'ascii':
case 'latin1':
case 'binary':
return len
case 'utf8':
case 'utf-8':
case undefined:
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) return utf8ToBytes(string).length // assume utf8
encoding = ('' + encoding).toLowerCase();
loweredCase = true;
}
}
}
Buffer$1.byteLength = byteLength;
function slowToString (encoding, start, end) {
var loweredCase = false;
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
// property of a typed array.
// This behaves neither like String nor Uint8Array in that we set start/end
// to their upper/lower bounds if the value passed is out of range.
// undefined is handled specially as per ECMA-262 6th Edition,
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
if (start === undefined || start < 0) {
start = 0;
}
// Return early if start > this.length. Done here to prevent potential uint32
// coercion fail below.
if (start > this.length) {
return ''
}
if (end === undefined || end > this.length) {
end = this.length;
}
if (end <= 0) {
return ''
}
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0;
start >>>= 0;
if (end <= start) {
return ''
}
if (!encoding) encoding = 'utf8';
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'latin1':
case 'binary':
return latin1Slice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase();
loweredCase = true;
}
}
}
// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
Buffer$1.prototype._isBuffer = true;
function swap (b, n, m) {
var i = b[n];
b[n] = b[m];
b[m] = i;
}
Buffer$1.prototype.swap16 = function swap16 () {
var len = this.length;
if (len % 2 !== 0) {
throw new RangeError('Buffer size must be a multiple of 16-bits')
}
for (var i = 0; i < len; i += 2) {
swap(this, i, i + 1);
}
return this
};
Buffer$1.prototype.swap32 = function swap32 () {
var len = this.length;
if (len % 4 !== 0) {
throw new RangeError('Buffer size must be a multiple of 32-bits')
}
for (var i = 0; i < len; i += 4) {
swap(this, i, i + 3);
swap(this, i + 1, i + 2);
}
return this
};
Buffer$1.prototype.swap64 = function swap64 () {
var len = this.length;
if (len % 8 !== 0) {
throw new RangeError('Buffer size must be a multiple of 64-bits')
}
for (var i = 0; i < len; i += 8) {
swap(this, i, i + 7);
swap(this, i + 1, i + 6);
swap(this, i + 2, i + 5);
swap(this, i + 3, i + 4);
}
return this
};
Buffer$1.prototype.toString = function toString () {
var length = this.length | 0;
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
};
Buffer$1.prototype.equals = function equals (b) {
if (!internalIsBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer$1.compare(this, b) === 0
};
Buffer$1.prototype.inspect = function inspect () {
var str = '';
var max = INSPECT_MAX_BYTES;
if (this.length > 0) {
str = this.toString('hex', 0, max).match(/.{2}/g).join(' ');
if (this.length > max) str += ' ... ';
}
return '<Buffer ' + str + '>'
};
Buffer$1.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
if (!internalIsBuffer(target)) {
throw new TypeError('Argument must be a Buffer')
}
if (start === undefined) {
start = 0;
}
if (end === undefined) {
end = target ? target.length : 0;
}
if (thisStart === undefined) {
thisStart = 0;
}
if (thisEnd === undefined) {
thisEnd = this.length;
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError('out of range index')
}
if (thisStart >= thisEnd && start >= end) {
return 0
}
if (thisStart >= thisEnd) {
return -1
}
if (start >= end) {
return 1
}
start >>>= 0;
end >>>= 0;
thisStart >>>= 0;
thisEnd >>>= 0;
if (this === target) return 0
var x = thisEnd - thisStart;
var y = end - start;
var len = Math.min(x, y);
var thisCopy = this.slice(thisStart, thisEnd);
var targetCopy = target.slice(start, end);
for (var i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i];
y = targetCopy[i];
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
};
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an op