forked from M3-Academy/challenge-algorithms-v2.0
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{"version":3,"names":["isFunction","isStatement","isClassBody","isTSInterfaceBody","SCIENTIFIC_NOTATION","ZERO_DECIMAL_INTEGER","NON_DECIMAL_LITERAL","PURE_ANNOTATION_RE","needsParens","n","Printer","constructor","format","map","inForStatementInitCounter","_printStack","_indent","_indentChar","_indentRepeat","_insideAux","_parenPushNewlineState","_noLineTerminator","_printAuxAfterOnNextUserNode","_printedComments","Set","_endsWithInteger","_endsWithWord","_lastCommentLine","_buf","Buffer","indent","style","charCodeAt","length","generate","ast","print","_maybeAddAuxComment","get","compact","concise","dedent","semicolon","force","_appendChar","_queue","rightBrace","minified","removeLastSemicolon","token","space","_space","hasContent","lastCp","getLastChar","word","str","endsWith","_append","number","Number","isInteger","test","maybeNewline","lastChar","strFirst","tokenChar","char","newline","i","retainLines","getNewlineCount","j","_newline","endsWithCharAndNewline","removeTrailingNewline","exactSource","loc","cb","_catchUp","source","prop","sourceWithOffset","lineOffset","columnOffset","withSource","_maybeAddParen","_maybeIndent","append","_maybeAddParenChar","appendChar","queue","firstChar","queueIndentation","_getIndent","_shouldIndent","parenPushNewlineState","printed","len","cha","chaPost","slice","catchUp","line","count","getCurrentLine","pos","ensureNoLineTerminator","fn","printTerminatorless","node","parent","isLabel","terminatorState","noLineTerminator","trailingCommentsLineOffset","nodeType","type","oldConcise","_compact","printMethod","undefined","ReferenceError","JSON","stringify","name","push","oldInAux","shouldPrintParens","retainFunctionParens","extra","parenthesized","_printLeadingComments","bind","_printTrailingComments","pop","enteredPositionlessNode","_printAuxBeforeComment","_printAuxAfterComment","comment","auxiliaryCommentBefore","_printComment","value","auxiliaryCommentAfter","getPossibleRaw","raw","rawValue","printJoin","nodes","opts","newlineOpts","addNewlines","nextNodeStartLine","separator","statement","_printNewline","iterator","nextNode","start","printAndIndentOnComments","leadingComments","printBlock","body","comments","_getComments","_printComments","printInnerComments","innerComments","printSequence","printList","items","commaSeparator","newLine","startLine","lastCommentLine","offset","leading","trailingComments","skipNewLines","ignore","has","shouldPrintComment","add","isBlockComment","printNewLines","lastCharCode","val","adjustMultilineComment","column","newlineRegex","RegExp","replace","indentSize","getCurrentColumn","repeat","nodeLoc","hasLoc","nodeStartLine","nodeEndLine","end","lastLine","leadingCommentNewline","commentStartLine","commentEndLine","Math","max","min","singleLine","includes","shouldSkipNewline","properties","printAssertions","assertions","Object","assign","prototype","generatorFunctions","Noop"],"sources":["../src/printer.ts"],"sourcesContent":["import Buffer from \"./buffer\";\nimport type { Loc } from \"./buffer\";\nimport * as n from \"./node\";\nimport type * as t from \"@babel/types\";\nimport {\n isFunction,\n isStatement,\n isClassBody,\n isTSInterfaceBody,\n} from \"@babel/types\";\nimport type {\n RecordAndTuplePluginOptions,\n PipelineOperatorPluginOptions,\n} from \"@babel/parser\";\nimport type { Opts as jsescOptions } from \"jsesc\";\n\nimport * as generatorFunctions from \"./generators\";\nimport type SourceMap from \"./source-map\";\nimport * as charCodes from \"charcodes\";\n\nconst SCIENTIFIC_NOTATION = /e/i;\nconst ZERO_DECIMAL_INTEGER = /\\.0+$/;\nconst NON_DECIMAL_LITERAL = /^0[box]/;\nconst PURE_ANNOTATION_RE = /^\\s*[@#]__PURE__\\s*$/;\n\nconst { needsParens } = n;\n\nconst enum COMMENT_TYPE {\n LEADING,\n INNER,\n TRAILING,\n}\n\nconst enum COMMENT_SKIP_NEWLINE {\n DEFAULT,\n SKIP_ALL,\n SKIP_LEADING,\n SKIP_TRAILING,\n}\n\nexport type Format = {\n shouldPrintComment: (comment: string) => boolean;\n retainLines: boolean;\n retainFunctionParens: boolean;\n comments: boolean;\n auxiliaryCommentBefore: string;\n auxiliaryCommentAfter: string;\n compact: boolean | \"auto\";\n minified: boolean;\n concise: boolean;\n indent: {\n adjustMultilineComment: boolean;\n style: string;\n };\n recordAndTupleSyntaxType: RecordAndTuplePluginOptions[\"syntaxType\"];\n jsescOption: jsescOptions;\n jsonCompatibleStrings?: boolean;\n /**\n * For use with the Hack-style pipe operator.\n * Changes what token is used for pipe bodies’ topic references.\n */\n topicToken?: PipelineOperatorPluginOptions[\"topicToken\"];\n /**\n * @deprecated Removed in Babel 8\n */\n decoratorsBeforeExport?: boolean;\n};\n\ninterface AddNewlinesOptions {\n addNewlines(leading: boolean, node: t.Node): number;\n nextNodeStartLine: number;\n}\n\ninterface PrintSequenceOptions extends Partial<AddNewlinesOptions> {\n statement?: boolean;\n indent?: boolean;\n trailingCommentsLineOffset?: number;\n}\n\ninterface PrintListOptions {\n separator?: (this: Printer) => void;\n statement?: boolean;\n indent?: boolean;\n}\n\ntype PrintJoinOptions = PrintListOptions &\n PrintSequenceOptions & {\n iterator?: (node: t.Node, index: number) => void;\n };\nclass Printer {\n constructor(format: Format, map: SourceMap) {\n this.format = format;\n this._buf = new Buffer(map);\n\n this._indentChar = format.indent.style.charCodeAt(0);\n this._indentRepeat = format.indent.style.length;\n }\n\n declare format: Format;\n inForStatementInitCounter: number = 0;\n\n declare _buf: Buffer;\n _printStack: Array<t.Node> = [];\n _indent: number = 0;\n _indentChar: number = 0;\n _indentRepeat: number = 0;\n _insideAux: boolean = false;\n _parenPushNewlineState: { printed: boolean } | null = null;\n _noLineTerminator: boolean = false;\n _printAuxAfterOnNextUserNode: boolean = false;\n _printedComments = new Set<t.Comment>();\n _endsWithInteger = false;\n _endsWithWord = false;\n _lastCommentLine = 0;\n\n generate(ast: t.Node) {\n this.print(ast);\n this._maybeAddAuxComment();\n\n return this._buf.get();\n }\n\n /**\n * Increment indent size.\n */\n\n indent(): void {\n if (this.format.compact || this.format.concise) return;\n\n this._indent++;\n }\n\n /**\n * Decrement indent size.\n */\n\n dedent(): void {\n if (this.format.compact || this.format.concise) return;\n\n this._indent--;\n }\n\n /**\n * Add a semicolon to the buffer.\n */\n\n semicolon(force: boolean = false): void {\n this._maybeAddAuxComment();\n if (force) {\n this._appendChar(charCodes.semicolon);\n } else {\n this._queue(charCodes.semicolon);\n }\n }\n\n /**\n * Add a right brace to the buffer.\n */\n\n rightBrace(): void {\n if (this.format.minified) {\n this._buf.removeLastSemicolon();\n }\n this.token(\"}\");\n }\n\n /**\n * Add a space to the buffer unless it is compact.\n */\n\n space(force: boolean = false): void {\n if (this.format.compact) return;\n\n if (force) {\n this._space();\n } else if (this._buf.hasContent()) {\n const lastCp = this.getLastChar();\n if (lastCp !== charCodes.space && lastCp !== charCodes.lineFeed) {\n this._space();\n }\n }\n }\n\n /**\n * Writes a token that can't be safely parsed without taking whitespace into account.\n */\n\n word(str: string): void {\n // prevent concatenating words and creating // comment out of division and regex\n if (\n this._endsWithWord ||\n (str.charCodeAt(0) === charCodes.slash && this.endsWith(charCodes.slash))\n ) {\n this._space();\n }\n\n this._maybeAddAuxComment();\n this._append(str, false);\n\n this._endsWithWord = true;\n }\n\n /**\n * Writes a number token so that we can validate if it is an integer.\n */\n\n number(str: string): void {\n this.word(str);\n\n // Integer tokens need special handling because they cannot have '.'s inserted\n // immediately after them.\n this._endsWithInteger =\n Number.isInteger(+str) &&\n !NON_DECIMAL_LITERAL.test(str) &&\n !SCIENTIFIC_NOTATION.test(str) &&\n !ZERO_DECIMAL_INTEGER.test(str) &&\n str.charCodeAt(str.length - 1) !== charCodes.dot;\n }\n\n /**\n * Writes a simple token.\n */\n\n token(str: string, maybeNewline = false): void {\n // space is mandatory to avoid outputting <!--\n // http://javascript.spec.whatwg.org/#comment-syntax\n const lastChar = this.getLastChar();\n const strFirst = str.charCodeAt(0);\n if (\n (lastChar === charCodes.exclamationMark && str === \"--\") ||\n // Need spaces for operators of the same kind to avoid: `a+++b`\n (strFirst === charCodes.plusSign && lastChar === charCodes.plusSign) ||\n (strFirst === charCodes.dash && lastChar === charCodes.dash) ||\n // Needs spaces to avoid changing '34' to '34.', which would still be a valid number.\n (strFirst === charCodes.dot && this._endsWithInteger)\n ) {\n this._space();\n }\n\n this._maybeAddAuxComment();\n this._append(str, maybeNewline);\n }\n\n tokenChar(char: number): void {\n // space is mandatory to avoid outputting <!--\n // http://javascript.spec.whatwg.org/#comment-syntax\n const lastChar = this.getLastChar();\n if (\n // Need spaces for operators of the same kind to avoid: `a+++b`\n (char === charCodes.plusSign && lastChar === charCodes.plusSign) ||\n (char === charCodes.dash && lastChar === charCodes.dash) ||\n // Needs spaces to avoid changing '34' to '34.', which would still be a valid number.\n (char === charCodes.dot && this._endsWithInteger)\n ) {\n this._space();\n }\n\n this._maybeAddAuxComment();\n this._appendChar(char);\n }\n\n /**\n * Add a newline (or many newlines), maintaining formatting.\n * This function checks the number of newlines in the queue and subtracts them.\n * It currently has some limitations.\n * @see {Buffer#getNewlineCount}\n */\n newline(i: number = 1, force?: boolean): void {\n if (i <= 0) return;\n\n if (!force) {\n if (this.format.retainLines || this.format.compact) return;\n\n if (this.format.concise) {\n this.space();\n return;\n }\n }\n\n if (i > 2) i = 2; // Max two lines\n\n i -= this._buf.getNewlineCount();\n\n for (let j = 0; j < i; j++) {\n this._newline();\n }\n\n return;\n }\n\n endsWith(char: number): boolean {\n return this.getLastChar() === char;\n }\n\n getLastChar(): number {\n return this._buf.getLastChar();\n }\n\n endsWithCharAndNewline(): number {\n return this._buf.endsWithCharAndNewline();\n }\n\n removeTrailingNewline(): void {\n this._buf.removeTrailingNewline();\n }\n\n exactSource(loc: Loc | undefined, cb: () => void) {\n if (!loc) return cb();\n\n this._catchUp(\"start\", loc);\n\n this._buf.exactSource(loc, cb);\n }\n\n source(prop: \"start\" | \"end\", loc: Loc | undefined): void {\n if (!loc) return;\n\n this._catchUp(prop, loc);\n\n this._buf.source(prop, loc);\n }\n\n sourceWithOffset(\n prop: \"start\" | \"end\",\n loc: Loc | undefined,\n lineOffset: number,\n columnOffset: number,\n ): void {\n if (!loc) return;\n\n this._catchUp(prop, loc);\n\n this._buf.sourceWithOffset(prop, loc, lineOffset, columnOffset);\n }\n\n withSource(\n prop: \"start\" | \"end\",\n loc: Loc | undefined,\n cb: () => void,\n ): void {\n if (!loc) return cb();\n\n this._catchUp(prop, loc);\n\n this._buf.withSource(prop, loc, cb);\n }\n\n _space(): void {\n this._queue(charCodes.space);\n }\n\n _newline(): void {\n this._queue(charCodes.lineFeed);\n }\n\n _append(str: string, maybeNewline: boolean): void {\n this._maybeAddParen(str);\n this._maybeIndent(str.charCodeAt(0));\n\n this._buf.append(str, maybeNewline);\n\n this._endsWithWord = false;\n this._endsWithInteger = false;\n }\n\n _appendChar(char: number): void {\n this._maybeAddParenChar(char);\n this._maybeIndent(char);\n\n this._buf.appendChar(char);\n\n this._endsWithWord = false;\n this._endsWithInteger = false;\n }\n\n _queue(char: number) {\n this._maybeAddParenChar(char);\n this._maybeIndent(char);\n\n this._buf.queue(char);\n\n this._endsWithWord = false;\n this._endsWithInteger = false;\n }\n\n _maybeIndent(firstChar: number): void {\n // we've got a newline before us so prepend on the indentation\n if (\n this._indent &&\n firstChar !== charCodes.lineFeed &&\n this.endsWith(charCodes.lineFeed)\n ) {\n this._buf.queueIndentation(this._indentChar, this._getIndent());\n }\n }\n\n _shouldIndent(firstChar: number) {\n // we've got a newline before us so prepend on the indentation\n if (\n this._indent &&\n firstChar !== charCodes.lineFeed &&\n this.endsWith(charCodes.lineFeed)\n ) {\n return true;\n }\n }\n\n _maybeAddParenChar(char: number): void {\n // see startTerminatorless() instance method\n const parenPushNewlineState = this._parenPushNewlineState;\n if (!parenPushNewlineState) return;\n\n // This function does two things:\n // - If needed, prints a parenthesis\n // - If the currently printed string removes the need for the paren,\n // it resets the _parenPushNewlineState field.\n // Almost everything removes the need for a paren, except for\n // comments and whitespaces.\n\n if (char === charCodes.space) {\n // Whitespaces only, the parentheses might still be needed.\n return;\n }\n\n // Check for newline or comment.\n if (char !== charCodes.lineFeed) {\n this._parenPushNewlineState = null;\n return;\n }\n\n this.token(\"(\");\n this.indent();\n parenPushNewlineState.printed = true;\n }\n\n _maybeAddParen(str: string): void {\n // see startTerminatorless() instance method\n const parenPushNewlineState = this._parenPushNewlineState;\n if (!parenPushNewlineState) return;\n\n // This function does two things:\n // - If needed, prints a parenthesis\n // - If the currently printed string removes the need for the paren,\n // it resets the _parenPushNewlineState field.\n // Almost everything removes the need for a paren, except for\n // comments and whitespaces.\n\n const len = str.length;\n\n let i;\n for (i = 0; i < len && str.charCodeAt(i) === charCodes.space; i++) continue;\n if (i === len) {\n // Whitespaces only, the parentheses might still be needed.\n return;\n }\n\n // Check for newline or comment.\n const cha = str.charCodeAt(i);\n if (cha !== charCodes.lineFeed) {\n if (\n // This is not a comment (it doesn't start with /)\n cha !== charCodes.slash ||\n // This is not a comment (it's a / operator)\n i + 1 === len\n ) {\n // After a normal token, the parentheses aren't needed anymore\n this._parenPushNewlineState = null;\n return;\n }\n\n const chaPost = str.charCodeAt(i + 1);\n\n if (chaPost === charCodes.asterisk) {\n // This is a block comment\n\n if (PURE_ANNOTATION_RE.test(str.slice(i + 2, len - 2))) {\n // We avoid printing newlines after #__PURE__ comments (we treat\n // then as unary operators), but we must keep the old\n // parenPushNewlineState because, if a newline was forbidden, it is\n // still forbidden after the comment.\n return;\n }\n\n // NOTE: code flow continues from here to after these if/elses\n } else if (chaPost !== charCodes.slash) {\n // This is neither a block comment, nor a line comment.\n // After a normal token, the parentheses aren't needed anymore\n this._parenPushNewlineState = null;\n return;\n }\n }\n\n this.token(\"(\");\n this.indent();\n parenPushNewlineState.printed = true;\n }\n\n catchUp(line: number) {\n if (!this.format.retainLines) return;\n\n // catch up to this nodes newline if we're behind\n const count = line - this._buf.getCurrentLine();\n\n for (let i = 0; i < count; i++) {\n this._newline();\n }\n }\n\n _catchUp(prop: \"start\" | \"end\", loc?: Loc) {\n if (!this.format.retainLines) return;\n\n // catch up to this nodes newline if we're behind\n const pos = loc ? loc[prop] : null;\n if (pos?.line != null) {\n const count = pos.line - this._buf.getCurrentLine();\n\n for (let i = 0; i < count; i++) {\n this._newline();\n }\n }\n }\n\n /**\n * Get the current indent.\n */\n\n _getIndent(): number {\n return this._indentRepeat * this._indent;\n }\n\n ensureNoLineTerminator(fn: () => void) {\n const { _noLineTerminator } = this;\n this._noLineTerminator = true;\n fn();\n this._noLineTerminator = _noLineTerminator;\n }\n\n printTerminatorless(node: t.Node, parent: t.Node, isLabel: boolean) {\n /**\n * Set some state that will be modified if a newline has been inserted before any\n * non-space characters.\n *\n * This is to prevent breaking semantics for terminatorless separator nodes. eg:\n *\n * return foo;\n *\n * returns `foo`. But if we do:\n *\n * return\n * foo;\n *\n * `undefined` will be returned and not `foo` due to the terminator.\n */\n if (isLabel) {\n this.ensureNoLineTerminator(() => {\n this.print(node, parent);\n });\n } else {\n const terminatorState = {\n printed: false,\n };\n this._parenPushNewlineState = terminatorState;\n this.print(node, parent);\n /**\n * Print an ending parentheses if a starting one has been printed.\n */\n if (terminatorState.printed) {\n this.dedent();\n this.newline();\n this.token(\")\");\n }\n }\n }\n\n print(\n node: t.Node | null,\n parent?: t.Node,\n noLineTerminator?: boolean,\n // trailingCommentsLineOffset also used to check if called from printJoin\n // it will be ignored if `noLineTerminator||this._noLineTerminator`\n trailingCommentsLineOffset?: number,\n ) {\n if (!node) return;\n\n const nodeType = node.type;\n const format = this.format;\n\n const oldConcise = format.concise;\n if (\n // @ts-expect-error document _compact AST properties\n node._compact\n ) {\n format.concise = true;\n }\n\n const printMethod =\n this[\n nodeType as Exclude<\n t.Node[\"type\"],\n // removed\n | \"Noop\"\n // renamed\n | t.DeprecatedAliases[\"type\"]\n >\n ];\n if (printMethod === undefined) {\n throw new ReferenceError(\n `unknown node of type ${JSON.stringify(\n nodeType,\n )} with constructor ${JSON.stringify(node.constructor.name)}`,\n );\n }\n\n this._printStack.push(node);\n\n const oldInAux = this._insideAux;\n this._insideAux = node.loc == undefined;\n this._maybeAddAuxComment(this._insideAux && !oldInAux);\n\n let shouldPrintParens = false;\n if (\n format.retainFunctionParens &&\n nodeType === \"FunctionExpression\" &&\n node.extra &&\n node.extra.parenthesized\n ) {\n shouldPrintParens = true;\n } else {\n shouldPrintParens = needsParens(node, parent, this._printStack);\n }\n if (shouldPrintParens) this.token(\"(\");\n\n this._lastCommentLine = 0;\n\n this._printLeadingComments(node, parent);\n\n const loc = nodeType === \"Program\" || nodeType === \"File\" ? null : node.loc;\n\n this.exactSource(loc, printMethod.bind(this, node, parent));\n\n if (noLineTerminator && !this._noLineTerminator) {\n this._noLineTerminator = true;\n this._printTrailingComments(node, parent);\n this._noLineTerminator = false;\n } else {\n this._printTrailingComments(node, parent, trailingCommentsLineOffset);\n }\n\n if (shouldPrintParens) this.token(\")\");\n\n // end\n this._printStack.pop();\n\n format.concise = oldConcise;\n this._insideAux = oldInAux;\n }\n\n _maybeAddAuxComment(enteredPositionlessNode?: boolean) {\n if (enteredPositionlessNode) this._printAuxBeforeComment();\n if (!this._insideAux) this._printAuxAfterComment();\n }\n\n _printAuxBeforeComment() {\n if (this._printAuxAfterOnNextUserNode) return;\n this._printAuxAfterOnNextUserNode = true;\n\n const comment = this.format.auxiliaryCommentBefore;\n if (comment) {\n this._printComment(\n {\n type: \"CommentBlock\",\n value: comment,\n },\n COMMENT_SKIP_NEWLINE.DEFAULT,\n );\n }\n }\n\n _printAuxAfterComment() {\n if (!this._printAuxAfterOnNextUserNode) return;\n this._printAuxAfterOnNextUserNode = false;\n\n const comment = this.format.auxiliaryCommentAfter;\n if (comment) {\n this._printComment(\n {\n type: \"CommentBlock\",\n value: comment,\n },\n COMMENT_SKIP_NEWLINE.DEFAULT,\n );\n }\n }\n\n getPossibleRaw(\n node:\n | t.StringLiteral\n | t.NumericLiteral\n | t.BigIntLiteral\n | t.DecimalLiteral\n | t.DirectiveLiteral\n | t.JSXText,\n ): string | undefined {\n const extra = node.extra;\n if (\n extra &&\n extra.raw != null &&\n extra.rawValue != null &&\n node.value === extra.rawValue\n ) {\n // @ts-expect-error: The extra.raw of these AST node types must be a string\n return extra.raw;\n }\n }\n\n printJoin(\n nodes: Array<t.Node> | undefined | null,\n parent: t.Node,\n opts: PrintJoinOptions = {},\n ) {\n if (!nodes?.length) return;\n\n if (opts.indent) this.indent();\n\n const newlineOpts: AddNewlinesOptions = {\n addNewlines: opts.addNewlines,\n nextNodeStartLine: 0,\n };\n\n const separator = opts.separator ? opts.separator.bind(this) : null;\n\n const len = nodes.length;\n for (let i = 0; i < len; i++) {\n const node = nodes[i];\n if (!node) continue;\n\n if (opts.statement) this._printNewline(i === 0, newlineOpts);\n\n this.print(node, parent, undefined, opts.trailingCommentsLineOffset || 0);\n\n opts.iterator?.(node, i);\n\n if (i < len - 1) separator?.();\n\n if (opts.statement) {\n if (i + 1 === len) {\n this.newline(1);\n } else {\n const nextNode = nodes[i + 1];\n newlineOpts.nextNodeStartLine = nextNode.loc?.start.line || 0;\n\n this._printNewline(true, newlineOpts);\n }\n }\n }\n\n if (opts.indent) this.dedent();\n }\n\n printAndIndentOnComments(node: t.Node, parent: t.Node) {\n const indent = node.leadingComments && node.leadingComments.length > 0;\n if (indent) this.indent();\n this.print(node, parent);\n if (indent) this.dedent();\n }\n\n printBlock(parent: Extract<t.Node, { body: t.Statement }>) {\n const node = parent.body;\n\n if (node.type !== \"EmptyStatement\") {\n this.space();\n }\n\n this.print(node, parent);\n }\n\n _printTrailingComments(node: t.Node, parent?: t.Node, lineOffset?: number) {\n const comments = this._getComments(false, node);\n if (!comments?.length) return;\n this._printComments(\n COMMENT_TYPE.TRAILING,\n comments,\n node,\n parent,\n lineOffset,\n );\n }\n\n _printLeadingComments(node: t.Node, parent: t.Node) {\n const comments = this._getComments(true, node);\n if (!comments?.length) return;\n this._printComments(COMMENT_TYPE.LEADING, comments, node, parent);\n }\n\n printInnerComments(node: t.Node, indent = true) {\n if (!node.innerComments?.length) return;\n if (indent) this.indent();\n this._printComments(COMMENT_TYPE.INNER, node.innerComments, node);\n if (indent) this.dedent();\n }\n\n printSequence(\n nodes: t.Node[],\n parent: t.Node,\n opts: PrintSequenceOptions = {},\n ) {\n opts.statement = true;\n return this.printJoin(nodes, parent, opts);\n }\n\n printList(items: t.Node[], parent: t.Node, opts: PrintListOptions = {}) {\n if (opts.separator == null) {\n opts.separator = commaSeparator;\n }\n\n return this.printJoin(items, parent, opts);\n }\n\n _printNewline(newLine: boolean, opts: AddNewlinesOptions) {\n // Fast path since 'this.newline' does nothing when not tracking lines.\n if (this.format.retainLines || this.format.compact) return;\n\n // Fast path for concise since 'this.newline' just inserts a space when\n // concise formatting is in use.\n if (this.format.concise) {\n this.space();\n return;\n }\n\n if (!newLine) {\n return;\n }\n\n const startLine = opts.nextNodeStartLine;\n const lastCommentLine = this._lastCommentLine;\n if (startLine > 0 && lastCommentLine > 0) {\n const offset = startLine - lastCommentLine;\n if (offset >= 0) {\n this.newline(offset || 1);\n return;\n }\n }\n\n // don't add newlines at the beginning of the file\n if (this._buf.hasContent()) {\n // Here is the logic of the original line wrapping according to the node layout, we are not using it now.\n // We currently add at most one newline to each node in the list, ignoring `opts.addNewlines`.\n\n // let lines = 0;\n // if (!leading) lines++; // always include at least a single line after\n // if (opts.addNewlines) lines += opts.addNewlines(leading, node) || 0;\n\n // const needs = leading ? needsWhitespaceBefore : needsWhitespaceAfter;\n // if (needs(node, parent)) lines++;\n\n // this.newline(Math.min(2, lines));\n\n this.newline(1);\n }\n }\n\n _getComments(leading: boolean, node: t.Node) {\n // Note, we use a boolean flag here instead of passing in the attribute name as it is faster\n // because this is called extremely frequently.\n return (\n (node && (leading ? node.leadingComments : node.trailingComments)) || null\n );\n }\n\n _printComment(comment: t.Comment, skipNewLines: COMMENT_SKIP_NEWLINE) {\n // Some plugins (such as flow-strip-types) use this to mark comments as removed using the AST-root 'comments' property,\n // where they can't manually mutate the AST node comment lists.\n if (comment.ignore) return;\n\n if (this._printedComments.has(comment)) return;\n\n if (!this.format.shouldPrintComment(comment.value)) return;\n\n this._printedComments.add(comment);\n\n const isBlockComment = comment.type === \"CommentBlock\";\n\n // Add a newline before and after a block comment, unless explicitly\n // disallowed\n const printNewLines =\n isBlockComment &&\n skipNewLines !== COMMENT_SKIP_NEWLINE.SKIP_ALL &&\n !this._noLineTerminator;\n\n if (\n printNewLines &&\n this._buf.hasContent() &&\n skipNewLines !== COMMENT_SKIP_NEWLINE.SKIP_LEADING\n ) {\n this.newline(1);\n }\n\n const lastCharCode = this.getLastChar();\n if (\n lastCharCode !== charCodes.leftSquareBracket &&\n lastCharCode !== charCodes.leftCurlyBrace\n ) {\n this.space();\n }\n\n let val;\n if (isBlockComment) {\n val = `/*${comment.value}*/`;\n if (this.format.indent.adjustMultilineComment) {\n const offset = comment.loc?.start.column;\n if (offset) {\n const newlineRegex = new RegExp(\"\\\\n\\\\s{1,\" + offset + \"}\", \"g\");\n val = val.replace(newlineRegex, \"\\n\");\n }\n\n let indentSize = this.format.retainLines\n ? 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GeneratorFunctions {}\nexport default Printer;\n\nfunction commaSeparator(this: Printer) {\n this.token(\",\");\n 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