Press n or j to go to the next uncovered block, b, p or k for the previous block.
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2814x 2814x 2814x 2814x 9x 9x 9x 9x 9x 2x 2749x 2749x 230x 117x 117x 106x 117x 106x 106x 117x 124x 2643x 2643x 2642x 2642x 14x 14x 2628x 2628x 2616x 2437x 2417x 1522x 2386x 2642x 341x 341x 2640x 1749x 1749x 980x 4x 3x 3x 1x 1x 1x 1x 1x 1x 1x 1x 1x 4x 980x 769x 769x 213x 1x 1x 1x 1x 1x 769x 1x 1x 1749x 2282x 2282x 2616x 2616x 2616x 2x 3973x 3973x 3973x 3973x 3973x 3973x 3973x 4826x 4826x 1624x 1617x 1234x 1234x 1234x 1234x 783x 349x 335x 14x 322x 288x 276x 274x 1234x 1180x 1180x 1234x 54x 54x 1617x 362x 362x 1624x 7x 7x 1624x 4826x 3973x 3973x 1617x 1617x 8841x 383x 383x 8841x 1234x 1234x 274x 274x 276x 276x 270x 270x 276x 4x 4x 478x 478x 478x 478x 2105x 200x 131x 131x 131x 2105x 1905x 1905x 1905x 2105x 478x 478x 3205x 3205x 3205x 13552x 13552x 13552x 13552x 13552x 13552x 13552x 2x 119x 119x 4937x 4937x 4937x 4937x 103x 2x 2x 2x 2x 2062x 2062x 2062x 2062x 2062x 2062x 2062x 2062x 2062x 2062x 2062x 1637x 641x 586x 2062x 585x 395x 395x 395x 190x 190x 190x 585x 585x 585x 5x 524x 18x 185x 167x 167x 585x 1x 1x 1x 585x 1667x 1667x 92x 92x 92x 92x 92x 1592x 1592x 1592x 1592x 1592x 1592x 1592x 1592x 1592x 2x 1592x 1592x 1592x 1592x 1344x 1344x 11829x 10376x 10376x 11829x 1344x 1592x 1589x 1x 1x 1x 1589x 1589x 1592x 1592x 529x 1063x 380x 683x 1592x 1592x 1590x 1592x 1592x 7x 7x 7x 1592x 1592x 1592x 1592x 1592x 1592x 1592x | import { type AttributeNode, ConstantTypes, type DirectiveNode, type ElementNode, ElementTypes, type ForParseResult, Namespaces, NodeTypes, type RootNode, type SimpleExpressionNode, type SourceLocation, type TemplateChildNode, createRoot, createSimpleExpression, } from './ast' import type { ParserOptions } from './options' import Tokenizer, { CharCodes, ParseMode, QuoteType, Sequences, State, isWhitespace, toCharCodes, } from './tokenizer' import { type CompilerCompatOptions, CompilerDeprecationTypes, checkCompatEnabled, isCompatEnabled, warnDeprecation, } from './compat/compatConfig' import { NO, extend } from '@vue/shared' import { ErrorCodes, createCompilerError, defaultOnError, defaultOnWarn, } from './errors' import { forAliasRE, isCoreComponent, isSimpleIdentifier, isStaticArgOf, } from './utils' import { decodeHTML } from 'entities/lib/decode.js' import { type ParserOptions as BabelOptions, parse, parseExpression, } from '@babel/parser' type OptionalOptions = | 'decodeEntities' | 'whitespace' | 'isNativeTag' | 'isBuiltInComponent' | 'expressionPlugins' | keyof CompilerCompatOptions export type MergedParserOptions = Omit< Required<ParserOptions>, OptionalOptions > & Pick<ParserOptions, OptionalOptions> export const defaultParserOptions: MergedParserOptions = { parseMode: 'base', ns: Namespaces.HTML, delimiters: [`{{`, `}}`], getNamespace: () => Namespaces.HTML, isVoidTag: NO, isPreTag: NO, isIgnoreNewlineTag: NO, isCustomElement: NO, onError: defaultOnError, onWarn: defaultOnWarn, comments: __DEV__, prefixIdentifiers: false, } let currentOptions: MergedParserOptions = defaultParserOptions let currentRoot: RootNode | null = null // parser state let currentInput = '' let currentOpenTag: ElementNode | null = null let currentProp: AttributeNode | DirectiveNode | null = null let currentAttrValue = '' let currentAttrStartIndex = -1 let currentAttrEndIndex = -1 let inPre = 0 let inVPre = false let currentVPreBoundary: ElementNode | null = null const stack: ElementNode[] = [] const tokenizer = new Tokenizer(stack, { onerr: emitError, ontext(start, end) { onText(getSlice(start, end), start, end) }, ontextentity(char, start, end) { onText(char, start, end) }, oninterpolation(start, end) { if (inVPre) { return onText(getSlice(start, end), start, end) } let innerStart = start + tokenizer.delimiterOpen.length let innerEnd = end - tokenizer.delimiterClose.length while (isWhitespace(currentInput.charCodeAt(innerStart))) { innerStart++ } while (isWhitespace(currentInput.charCodeAt(innerEnd - 1))) { innerEnd-- } let exp = getSlice(innerStart, innerEnd) // decode entities for backwards compat if (exp.includes('&')) { if (__BROWSER__) { exp = currentOptions.decodeEntities!(exp, false) } else { exp = decodeHTML(exp) } } addNode({ type: NodeTypes.INTERPOLATION, content: createExp(exp, false, getLoc(innerStart, innerEnd)), loc: getLoc(start, end), }) }, onopentagname(start, end) { const name = getSlice(start, end) currentOpenTag = { type: NodeTypes.ELEMENT, tag: name, ns: currentOptions.getNamespace(name, stack[0], currentOptions.ns), tagType: ElementTypes.ELEMENT, // will be refined on tag close props: [], children: [], loc: getLoc(start - 1, end), codegenNode: undefined, } }, onopentagend(end) { endOpenTag(end) }, onclosetag(start, end) { const name = getSlice(start, end) if (!currentOptions.isVoidTag(name)) { let found = false for (let i = 0; i < stack.length; i++) { const e = stack[i] if (e.tag.toLowerCase() === name.toLowerCase()) { found = true if (i > 0) { emitError(ErrorCodes.X_MISSING_END_TAG, stack[0].loc.start.offset) } for (let j = 0; j <= i; j++) { const el = stack.shift()! onCloseTag(el, end, j < i) } break } } if (!found) { emitError(ErrorCodes.X_INVALID_END_TAG, backTrack(start, CharCodes.Lt)) } } }, onselfclosingtag(end) { const name = currentOpenTag!.tag currentOpenTag!.isSelfClosing = true endOpenTag(end) if (stack[0] && stack[0].tag === name) { onCloseTag(stack.shift()!, end) } }, onattribname(start, end) { // plain attribute currentProp = { type: NodeTypes.ATTRIBUTE, name: getSlice(start, end), nameLoc: getLoc(start, end), value: undefined, loc: getLoc(start), } }, ondirname(start, end) { const raw = getSlice(start, end) const name = raw === '.' || raw === ':' ? 'bind' : raw === '@' ? 'on' : raw === '#' ? 'slot' : raw.slice(2) if (!inVPre && name === '') { emitError(ErrorCodes.X_MISSING_DIRECTIVE_NAME, start) } if (inVPre || name === '') { currentProp = { type: NodeTypes.ATTRIBUTE, name: raw, nameLoc: getLoc(start, end), value: undefined, loc: getLoc(start), } } else { currentProp = { type: NodeTypes.DIRECTIVE, name, rawName: raw, exp: undefined, arg: undefined, modifiers: raw === '.' ? [createSimpleExpression('prop')] : [], loc: getLoc(start), } if (name === 'pre') { inVPre = tokenizer.inVPre = true currentVPreBoundary = currentOpenTag // convert dirs before this one to attributes const props = currentOpenTag!.props for (let i = 0; i < props.length; i++) { if (props[i].type === NodeTypes.DIRECTIVE) { props[i] = dirToAttr(props[i] as DirectiveNode) } } } } }, ondirarg(start, end) { if (start === end) return const arg = getSlice(start, end) if (inVPre) { ;(currentProp as AttributeNode).name += arg setLocEnd((currentProp as AttributeNode).nameLoc, end) } else { const isStatic = arg[0] !== `[` ;(currentProp as DirectiveNode).arg = createExp( isStatic ? arg : arg.slice(1, -1), isStatic, getLoc(start, end), isStatic ? ConstantTypes.CAN_STRINGIFY : ConstantTypes.NOT_CONSTANT, ) } }, ondirmodifier(start, end) { const mod = getSlice(start, end) if (inVPre) { ;(currentProp as AttributeNode).name += '.' + mod setLocEnd((currentProp as AttributeNode).nameLoc, end) } else if ((currentProp as DirectiveNode).name === 'slot') { // slot has no modifiers, special case for edge cases like // https://github.com/vuejs/language-tools/issues/2710 const arg = (currentProp as DirectiveNode).arg if (arg) { ;(arg as SimpleExpressionNode).content += '.' + mod setLocEnd(arg.loc, end) } } else { const exp = createSimpleExpression(mod, true, getLoc(start, end)) ;(currentProp as DirectiveNode).modifiers.push(exp) } }, onattribdata(start, end) { currentAttrValue += getSlice(start, end) if (currentAttrStartIndex < 0) currentAttrStartIndex = start currentAttrEndIndex = end }, onattribentity(char, start, end) { currentAttrValue += char if (currentAttrStartIndex < 0) currentAttrStartIndex = start currentAttrEndIndex = end }, onattribnameend(end) { const start = currentProp!.loc.start.offset const name = getSlice(start, end) if (currentProp!.type === NodeTypes.DIRECTIVE) { currentProp!.rawName = name } // check duplicate attrs if ( currentOpenTag!.props.some( p => (p.type === NodeTypes.DIRECTIVE ? p.rawName : p.name) === name, ) ) { emitError(ErrorCodes.DUPLICATE_ATTRIBUTE, start) } }, onattribend(quote, end) { if (currentOpenTag && currentProp) { // finalize end pos setLocEnd(currentProp.loc, end) if (quote !== QuoteType.NoValue) { if (__BROWSER__ && currentAttrValue.includes('&')) { currentAttrValue = currentOptions.decodeEntities!( currentAttrValue, true, ) } if (currentProp.type === NodeTypes.ATTRIBUTE) { // assign value // condense whitespaces in class if (currentProp!.name === 'class') { currentAttrValue = condense(currentAttrValue).trim() } if (quote === QuoteType.Unquoted && !currentAttrValue) { emitError(ErrorCodes.MISSING_ATTRIBUTE_VALUE, end) } currentProp!.value = { type: NodeTypes.TEXT, content: currentAttrValue, loc: quote === QuoteType.Unquoted ? getLoc(currentAttrStartIndex, currentAttrEndIndex) : getLoc(currentAttrStartIndex - 1, currentAttrEndIndex + 1), } if ( tokenizer.inSFCRoot && currentOpenTag.tag === 'template' && currentProp.name === 'lang' && currentAttrValue && currentAttrValue !== 'html' ) { // SFC root template with preprocessor lang, force tokenizer to // RCDATA mode tokenizer.enterRCDATA(toCharCodes(`</template`), 0) } } else { // directive let expParseMode = ExpParseMode.Normal if (!__BROWSER__) { if (currentProp.name === 'for') { expParseMode = ExpParseMode.Skip } else if (currentProp.name === 'slot') { expParseMode = ExpParseMode.Params } else if ( currentProp.name === 'on' && currentAttrValue.includes(';') ) { expParseMode = ExpParseMode.Statements } } currentProp.exp = createExp( currentAttrValue, false, getLoc(currentAttrStartIndex, currentAttrEndIndex), ConstantTypes.NOT_CONSTANT, expParseMode, ) if (currentProp.name === 'for') { currentProp.forParseResult = parseForExpression(currentProp.exp) } // 2.x compat v-bind:foo.sync -> v-model:foo let syncIndex = -1 if ( __COMPAT__ && currentProp.name === 'bind' && (syncIndex = currentProp.modifiers.findIndex( mod => mod.content === 'sync', )) > -1 && checkCompatEnabled( CompilerDeprecationTypes.COMPILER_V_BIND_SYNC, currentOptions, currentProp.loc, currentProp.rawName, ) ) { currentProp.name = 'model' currentProp.modifiers.splice(syncIndex, 1) } } } if ( currentProp.type !== NodeTypes.DIRECTIVE || currentProp.name !== 'pre' ) { currentOpenTag.props.push(currentProp) } } currentAttrValue = '' currentAttrStartIndex = currentAttrEndIndex = -1 }, oncomment(start, end) { if (currentOptions.comments) { addNode({ type: NodeTypes.COMMENT, content: getSlice(start, end), loc: getLoc(start - 4, end + 3), }) } }, onend() { const end = currentInput.length // EOF ERRORS if ((__DEV__ || !__BROWSER__) && tokenizer.state !== State.Text) { switch (tokenizer.state) { case State.BeforeTagName: case State.BeforeClosingTagName: emitError(ErrorCodes.EOF_BEFORE_TAG_NAME, end) break case State.Interpolation: case State.InterpolationClose: emitError( ErrorCodes.X_MISSING_INTERPOLATION_END, tokenizer.sectionStart, ) break case State.InCommentLike: if (tokenizer.currentSequence === Sequences.CdataEnd) { emitError(ErrorCodes.EOF_IN_CDATA, end) } else { emitError(ErrorCodes.EOF_IN_COMMENT, end) } break case State.InTagName: case State.InSelfClosingTag: case State.InClosingTagName: case State.BeforeAttrName: case State.InAttrName: case State.InDirName: case State.InDirArg: case State.InDirDynamicArg: case State.InDirModifier: case State.AfterAttrName: case State.BeforeAttrValue: case State.InAttrValueDq: // " case State.InAttrValueSq: // ' case State.InAttrValueNq: emitError(ErrorCodes.EOF_IN_TAG, end) break default: // console.log(tokenizer.state) break } } for (let index = 0; index < stack.length; index++) { onCloseTag(stack[index], end - 1) emitError(ErrorCodes.X_MISSING_END_TAG, stack[index].loc.start.offset) } }, oncdata(start, end) { if (stack[0].ns !== Namespaces.HTML) { onText(getSlice(start, end), start, end) } else { emitError(ErrorCodes.CDATA_IN_HTML_CONTENT, start - 9) } }, onprocessinginstruction(start) { // ignore as we do not have runtime handling for this, only check error if ((stack[0] ? stack[0].ns : currentOptions.ns) === Namespaces.HTML) { emitError( ErrorCodes.UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME, start - 1, ) } }, }) // 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: SimpleExpressionNode, ): ForParseResult | undefined { const loc = input.loc const exp = input.content const inMatch = exp.match(forAliasRE) if (!inMatch) return const [, LHS, RHS] = inMatch const createAliasExpression = ( content: string, offset: number, asParam = false, ) => { const start = loc.start.offset + offset const end = start + content.length return createExp( content, false, getLoc(start, end), ConstantTypes.NOT_CONSTANT, asParam ? ExpParseMode.Params : ExpParseMode.Normal, ) } const result: ForParseResult = { source: createAliasExpression(RHS.trim(), exp.indexOf(RHS, LHS.length)), value: undefined, key: undefined, index: undefined, finalized: false, } 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: number | undefined if (keyContent) { keyOffset = exp.indexOf(keyContent, trimmedOffset + valueContent.length) result.key = createAliasExpression(keyContent, keyOffset, true) } if (iteratorMatch[2]) { const indexContent = iteratorMatch[2].trim() if (indexContent) { result.index = createAliasExpression( indexContent, exp.indexOf( indexContent, result.key ? keyOffset! + keyContent.length : trimmedOffset + valueContent.length, ), true, ) } } } if (valueContent) { result.value = createAliasExpression(valueContent, trimmedOffset, true) } return result } function getSlice(start: number, end: number) { return currentInput.slice(start, end) } function endOpenTag(end: number) { if (tokenizer.inSFCRoot) { // in SFC mode, generate locations for root-level tags' inner content. currentOpenTag!.innerLoc = getLoc(end + 1, end + 1) } addNode(currentOpenTag!) const { tag, ns } = currentOpenTag! if (ns === Namespaces.HTML && currentOptions.isPreTag(tag)) { inPre++ } if (currentOptions.isVoidTag(tag)) { onCloseTag(currentOpenTag!, end) } else { stack.unshift(currentOpenTag!) if (ns === Namespaces.SVG || ns === Namespaces.MATH_ML) { tokenizer.inXML = true } } currentOpenTag = null } function onText(content: string, start: number, end: number) { if (__BROWSER__) { const tag = stack[0] && stack[0].tag if (tag !== 'script' && tag !== 'style' && content.includes('&')) { content = currentOptions.decodeEntities!(content, false) } } const parent = stack[0] || currentRoot const lastNode = parent.children[parent.children.length - 1] if (lastNode && lastNode.type === NodeTypes.TEXT) { // merge lastNode.content += content setLocEnd(lastNode.loc, end) } else { parent.children.push({ type: NodeTypes.TEXT, content, loc: getLoc(start, end), }) } } function onCloseTag(el: ElementNode, end: number, isImplied = false) { // attach end position if (isImplied) { // implied close, end should be backtracked to close setLocEnd(el.loc, backTrack(end, CharCodes.Lt)) } else { setLocEnd(el.loc, lookAhead(end, CharCodes.Gt) + 1) } if (tokenizer.inSFCRoot) { // SFC root tag, resolve inner end if (el.children.length) { el.innerLoc!.end = extend({}, el.children[el.children.length - 1].loc.end) } else { el.innerLoc!.end = extend({}, el.innerLoc!.start) } el.innerLoc!.source = getSlice( el.innerLoc!.start.offset, el.innerLoc!.end.offset, ) } // refine element type const { tag, ns, children } = el if (!inVPre) { if (tag === 'slot') { el.tagType = ElementTypes.SLOT } else if (isFragmentTemplate(el)) { el.tagType = ElementTypes.TEMPLATE } else if (isComponent(el)) { el.tagType = ElementTypes.COMPONENT } } // whitespace management if (!tokenizer.inRCDATA) { el.children = condenseWhitespace(children, tag) } if (ns === Namespaces.HTML && currentOptions.isIgnoreNewlineTag(tag)) { // remove leading newline for <textarea> and <pre> per html spec // https://html.spec.whatwg.org/multipage/parsing.html#parsing-main-inbody const first = children[0] if (first && first.type === NodeTypes.TEXT) { first.content = first.content.replace(/^\r?\n/, '') } } if (ns === Namespaces.HTML && currentOptions.isPreTag(tag)) { inPre-- } if (currentVPreBoundary === el) { inVPre = tokenizer.inVPre = false currentVPreBoundary = null } if ( tokenizer.inXML && (stack[0] ? stack[0].ns : currentOptions.ns) === Namespaces.HTML ) { tokenizer.inXML = false } // 2.x compat / deprecation checks if (__COMPAT__) { const props = el.props if ( __DEV__ && isCompatEnabled( CompilerDeprecationTypes.COMPILER_V_IF_V_FOR_PRECEDENCE, currentOptions, ) ) { let hasIf = false let hasFor = false for (let i = 0; i < props.length; i++) { const p = props[i] if (p.type === NodeTypes.DIRECTIVE) { if (p.name === 'if') { hasIf = true } else if (p.name === 'for') { hasFor = true } } if (hasIf && hasFor) { warnDeprecation( CompilerDeprecationTypes.COMPILER_V_IF_V_FOR_PRECEDENCE, currentOptions, el.loc, ) break } } } if ( !tokenizer.inSFCRoot && isCompatEnabled( CompilerDeprecationTypes.COMPILER_NATIVE_TEMPLATE, currentOptions, ) && el.tag === 'template' && !isFragmentTemplate(el) ) { __DEV__ && warnDeprecation( CompilerDeprecationTypes.COMPILER_NATIVE_TEMPLATE, currentOptions, el.loc, ) // unwrap const parent = stack[0] || currentRoot const index = parent.children.indexOf(el) parent.children.splice(index, 1, ...el.children) } const inlineTemplateProp = props.find( p => p.type === NodeTypes.ATTRIBUTE && p.name === 'inline-template', ) as AttributeNode if ( inlineTemplateProp && checkCompatEnabled( CompilerDeprecationTypes.COMPILER_INLINE_TEMPLATE, currentOptions, inlineTemplateProp.loc, ) && el.children.length ) { inlineTemplateProp.value = { type: NodeTypes.TEXT, content: getSlice( el.children[0].loc.start.offset, el.children[el.children.length - 1].loc.end.offset, ), loc: inlineTemplateProp.loc, } } } } function lookAhead(index: number, c: number) { let i = index while (currentInput.charCodeAt(i) !== c && i < currentInput.length - 1) i++ return i } function backTrack(index: number, c: number) { let i = index while (currentInput.charCodeAt(i) !== c && i >= 0) i-- return i } const specialTemplateDir = new Set(['if', 'else', 'else-if', 'for', 'slot']) function isFragmentTemplate({ tag, props }: ElementNode): boolean { if (tag === 'template') { for (let i = 0; i < props.length; i++) { if ( props[i].type === NodeTypes.DIRECTIVE && specialTemplateDir.has((props[i] as DirectiveNode).name) ) { return true } } } return false } function isComponent({ tag, props }: ElementNode): boolean { if (currentOptions.isCustomElement(tag)) { return false } if ( tag === 'component' || isUpperCase(tag.charCodeAt(0)) || isCoreComponent(tag) || (currentOptions.isBuiltInComponent && currentOptions.isBuiltInComponent(tag)) || (currentOptions.isNativeTag && !currentOptions.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 === NodeTypes.ATTRIBUTE) { if (p.name === 'is' && p.value) { if (p.value.content.startsWith('vue:')) { return true } else if ( __COMPAT__ && checkCompatEnabled( CompilerDeprecationTypes.COMPILER_IS_ON_ELEMENT, currentOptions, p.loc, ) ) { return true } } } else if ( __COMPAT__ && // :is on plain element - only treat as component in compat mode p.name === 'bind' && isStaticArgOf(p.arg, 'is') && checkCompatEnabled( CompilerDeprecationTypes.COMPILER_IS_ON_ELEMENT, currentOptions, p.loc, ) ) { return true } } return false } function isUpperCase(c: number) { return c > 64 && c < 91 } const windowsNewlineRE = /\r\n/g function condenseWhitespace( nodes: TemplateChildNode[], tag?: string, ): TemplateChildNode[] { const shouldCondense = currentOptions.whitespace !== 'preserve' let removedWhitespace = false for (let i = 0; i < nodes.length; i++) { const node = nodes[i] if (node.type === NodeTypes.TEXT) { if (!inPre) { if (isAllWhitespace(node.content)) { const prev = nodes[i - 1] && nodes[i - 1].type const next = nodes[i + 1] && nodes[i + 1].type // Remove if: // - the whitespace is the first or last node, or: // - (condense mode) the whitespace is between two comments, or: // - (condense mode) the whitespace is between comment and element, or: // - (condense mode) the whitespace is between two elements AND contains newline if ( !prev || !next || (shouldCondense && ((prev === NodeTypes.COMMENT && (next === NodeTypes.COMMENT || next === NodeTypes.ELEMENT)) || (prev === NodeTypes.ELEMENT && (next === NodeTypes.COMMENT || (next === NodeTypes.ELEMENT && hasNewlineChar(node.content)))))) ) { removedWhitespace = true nodes[i] = null as any } 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 = condense(node.content) } } else { // #6410 normalize windows newlines in <pre>: // in SSR, browsers normalize server-rendered \r\n into a single \n // in the DOM node.content = node.content.replace(windowsNewlineRE, '\n') } } } return removedWhitespace ? nodes.filter(Boolean) : nodes } function isAllWhitespace(str: string) { for (let i = 0; i < str.length; i++) { if (!isWhitespace(str.charCodeAt(i))) { return false } } return true } function hasNewlineChar(str: string) { for (let i = 0; i < str.length; i++) { const c = str.charCodeAt(i) if (c === CharCodes.NewLine || c === CharCodes.CarriageReturn) { return true } } return false } function condense(str: string) { let ret = '' let prevCharIsWhitespace = false for (let i = 0; i < str.length; i++) { if (isWhitespace(str.charCodeAt(i))) { if (!prevCharIsWhitespace) { ret += ' ' prevCharIsWhitespace = true } } else { ret += str[i] prevCharIsWhitespace = false } } return ret } function addNode(node: TemplateChildNode) { ;(stack[0] || currentRoot).children.push(node) } function getLoc(start: number, end?: number): SourceLocation { return { start: tokenizer.getPos(start), // @ts-expect-error allow late attachment end: end == null ? end : tokenizer.getPos(end), // @ts-expect-error allow late attachment source: end == null ? end : getSlice(start, end), } } export function cloneLoc(loc: SourceLocation): SourceLocation { return getLoc(loc.start.offset, loc.end.offset) } function setLocEnd(loc: SourceLocation, end: number) { loc.end = tokenizer.getPos(end) loc.source = getSlice(loc.start.offset, end) } function dirToAttr(dir: DirectiveNode): AttributeNode { const attr: AttributeNode = { type: NodeTypes.ATTRIBUTE, name: dir.rawName!, nameLoc: getLoc( dir.loc.start.offset, dir.loc.start.offset + dir.rawName!.length, ), value: undefined, loc: dir.loc, } if (dir.exp) { // account for quotes const loc = dir.exp.loc if (loc.end.offset < dir.loc.end.offset) { loc.start.offset-- loc.start.column-- loc.end.offset++ loc.end.column++ } attr.value = { type: NodeTypes.TEXT, content: (dir.exp as SimpleExpressionNode).content, loc, } } return attr } enum ExpParseMode { Normal, Params, Statements, Skip, } function createExp( content: SimpleExpressionNode['content'], isStatic: SimpleExpressionNode['isStatic'] = false, loc: SourceLocation, constType: ConstantTypes = ConstantTypes.NOT_CONSTANT, parseMode = ExpParseMode.Normal, ) { const exp = createSimpleExpression(content, isStatic, loc, constType) if ( !__BROWSER__ && !isStatic && currentOptions.prefixIdentifiers && parseMode !== ExpParseMode.Skip && content.trim() ) { if (isSimpleIdentifier(content)) { exp.ast = null // fast path return exp } try { const plugins = currentOptions.expressionPlugins const options: BabelOptions = { plugins: plugins ? [...plugins, 'typescript'] : ['typescript'], } if (parseMode === ExpParseMode.Statements) { // v-on with multi-inline-statements, pad 1 char exp.ast = parse(` ${content} `, options).program } else if (parseMode === ExpParseMode.Params) { exp.ast = parseExpression(`(${content})=>{}`, options) } else { // normal exp, wrap with parens exp.ast = parseExpression(`(${content})`, options) } } catch (e: any) { exp.ast = false // indicate an error emitError(ErrorCodes.X_INVALID_EXPRESSION, loc.start.offset, e.message) } } return exp } function emitError(code: ErrorCodes, index: number, message?: string) { currentOptions.onError( createCompilerError(code, getLoc(index, index), undefined, message), ) } function reset() { tokenizer.reset() currentOpenTag = null currentProp = null currentAttrValue = '' currentAttrStartIndex = -1 currentAttrEndIndex = -1 stack.length = 0 } export function baseParse(input: string, options?: ParserOptions): RootNode { reset() currentInput = input currentOptions = extend({}, defaultParserOptions) if (options) { let key: keyof ParserOptions for (key in options) { if (options[key] != null) { // @ts-expect-error currentOptions[key] = options[key] } } } if (__DEV__) { if (!__BROWSER__ && currentOptions.decodeEntities) { console.warn( `[@vue/compiler-core] decodeEntities option is passed but will be ` + `ignored in non-browser builds.`, ) } else if (__BROWSER__ && !currentOptions.decodeEntities) { throw new Error( `[@vue/compiler-core] decodeEntities option is required in browser builds.`, ) } } tokenizer.mode = currentOptions.parseMode === 'html' ? ParseMode.HTML : currentOptions.parseMode === 'sfc' ? ParseMode.SFC : ParseMode.BASE tokenizer.inXML = currentOptions.ns === Namespaces.SVG || currentOptions.ns === Namespaces.MATH_ML const delimiters = options && options.delimiters if (delimiters) { tokenizer.delimiterOpen = toCharCodes(delimiters[0]) tokenizer.delimiterClose = toCharCodes(delimiters[1]) } const root = (currentRoot = createRoot([], input)) tokenizer.parse(currentInput) root.loc = getLoc(0, input.length) root.children = condenseWhitespace(root.children) currentRoot = null return root } |