884 lines
22 KiB
TypeScript
884 lines
22 KiB
TypeScript
export interface Node {
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start: number
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end: number
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type: string
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range?: [number, number]
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loc?: SourceLocation | null
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}
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export interface SourceLocation {
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source?: string | null
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start: Position
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end: Position
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}
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export interface Position {
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/** 1-based */
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line: number
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/** 0-based */
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column: number
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}
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export interface Identifier extends Node {
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type: "Identifier"
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name: string
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}
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export interface Literal extends Node {
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type: "Literal"
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value?: string | boolean | null | number | RegExp | bigint
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raw?: string
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regex?: {
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pattern: string
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flags: string
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}
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bigint?: string
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}
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export interface Program extends Node {
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type: "Program"
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body: Array<Statement | ModuleDeclaration>
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sourceType: "script" | "module"
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}
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export interface Function extends Node {
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id?: Identifier | null
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params: Array<Pattern>
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body: BlockStatement | Expression
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generator: boolean
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expression: boolean
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async: boolean
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}
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export interface ExpressionStatement extends Node {
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type: "ExpressionStatement"
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expression: Expression | Literal
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directive?: string
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}
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export interface BlockStatement extends Node {
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type: "BlockStatement"
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body: Array<Statement>
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}
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export interface EmptyStatement extends Node {
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type: "EmptyStatement"
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}
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export interface DebuggerStatement extends Node {
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type: "DebuggerStatement"
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}
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export interface WithStatement extends Node {
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type: "WithStatement"
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object: Expression
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body: Statement
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}
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export interface ReturnStatement extends Node {
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type: "ReturnStatement"
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argument?: Expression | null
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}
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export interface LabeledStatement extends Node {
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type: "LabeledStatement"
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label: Identifier
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body: Statement
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}
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export interface BreakStatement extends Node {
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type: "BreakStatement"
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label?: Identifier | null
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}
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export interface ContinueStatement extends Node {
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type: "ContinueStatement"
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label?: Identifier | null
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}
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export interface IfStatement extends Node {
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type: "IfStatement"
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test: Expression
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consequent: Statement
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alternate?: Statement | null
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}
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export interface SwitchStatement extends Node {
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type: "SwitchStatement"
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discriminant: Expression
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cases: Array<SwitchCase>
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}
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export interface SwitchCase extends Node {
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type: "SwitchCase"
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test?: Expression | null
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consequent: Array<Statement>
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}
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export interface ThrowStatement extends Node {
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type: "ThrowStatement"
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argument: Expression
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}
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export interface TryStatement extends Node {
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type: "TryStatement"
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block: BlockStatement
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handler?: CatchClause | null
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finalizer?: BlockStatement | null
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}
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export interface CatchClause extends Node {
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type: "CatchClause"
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param?: Pattern | null
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body: BlockStatement
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}
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export interface WhileStatement extends Node {
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type: "WhileStatement"
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test: Expression
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body: Statement
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}
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export interface DoWhileStatement extends Node {
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type: "DoWhileStatement"
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body: Statement
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test: Expression
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}
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export interface ForStatement extends Node {
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type: "ForStatement"
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init?: VariableDeclaration | Expression | null
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test?: Expression | null
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update?: Expression | null
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body: Statement
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}
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export interface ForInStatement extends Node {
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type: "ForInStatement"
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left: VariableDeclaration | Pattern
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right: Expression
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body: Statement
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}
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export interface FunctionDeclaration extends Function {
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type: "FunctionDeclaration"
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id: Identifier
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body: BlockStatement
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}
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export interface VariableDeclaration extends Node {
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type: "VariableDeclaration"
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declarations: Array<VariableDeclarator>
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kind: "var" | "let" | "const" | "using" | "await using"
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}
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export interface VariableDeclarator extends Node {
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type: "VariableDeclarator"
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id: Pattern
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init?: Expression | null
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}
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export interface ThisExpression extends Node {
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type: "ThisExpression"
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}
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export interface ArrayExpression extends Node {
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type: "ArrayExpression"
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elements: Array<Expression | SpreadElement | null>
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}
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export interface ObjectExpression extends Node {
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type: "ObjectExpression"
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properties: Array<Property | SpreadElement>
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}
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export interface Property extends Node {
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type: "Property"
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key: Expression
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value: Expression
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kind: "init" | "get" | "set"
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method: boolean
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shorthand: boolean
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computed: boolean
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}
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export interface FunctionExpression extends Function {
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type: "FunctionExpression"
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body: BlockStatement
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}
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export interface UnaryExpression extends Node {
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type: "UnaryExpression"
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operator: UnaryOperator
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prefix: boolean
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argument: Expression
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}
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export type UnaryOperator = "-" | "+" | "!" | "~" | "typeof" | "void" | "delete"
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export interface UpdateExpression extends Node {
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type: "UpdateExpression"
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operator: UpdateOperator
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argument: Expression
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prefix: boolean
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}
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export type UpdateOperator = "++" | "--"
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export interface BinaryExpression extends Node {
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type: "BinaryExpression"
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operator: BinaryOperator
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left: Expression | PrivateIdentifier
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right: Expression
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}
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export type BinaryOperator = "==" | "!=" | "===" | "!==" | "<" | "<=" | ">" | ">=" | "<<" | ">>" | ">>>" | "+" | "-" | "*" | "/" | "%" | "|" | "^" | "&" | "in" | "instanceof" | "**"
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export interface AssignmentExpression extends Node {
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type: "AssignmentExpression"
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operator: AssignmentOperator
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left: Pattern
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right: Expression
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}
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export type AssignmentOperator = "=" | "+=" | "-=" | "*=" | "/=" | "%=" | "<<=" | ">>=" | ">>>=" | "|=" | "^=" | "&=" | "**=" | "||=" | "&&=" | "??="
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export interface LogicalExpression extends Node {
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type: "LogicalExpression"
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operator: LogicalOperator
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left: Expression
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right: Expression
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}
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export type LogicalOperator = "||" | "&&" | "??"
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export interface MemberExpression extends Node {
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type: "MemberExpression"
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object: Expression | Super
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property: Expression | PrivateIdentifier
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computed: boolean
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optional: boolean
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}
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export interface ConditionalExpression extends Node {
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type: "ConditionalExpression"
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test: Expression
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alternate: Expression
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consequent: Expression
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}
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export interface CallExpression extends Node {
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type: "CallExpression"
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callee: Expression | Super
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arguments: Array<Expression | SpreadElement>
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optional: boolean
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}
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export interface NewExpression extends Node {
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type: "NewExpression"
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callee: Expression
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arguments: Array<Expression | SpreadElement>
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}
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export interface SequenceExpression extends Node {
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type: "SequenceExpression"
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expressions: Array<Expression>
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}
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export interface ForOfStatement extends Node {
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type: "ForOfStatement"
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left: VariableDeclaration | Pattern
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right: Expression
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body: Statement
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await: boolean
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}
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export interface Super extends Node {
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type: "Super"
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}
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export interface SpreadElement extends Node {
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type: "SpreadElement"
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argument: Expression
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}
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export interface ArrowFunctionExpression extends Function {
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type: "ArrowFunctionExpression"
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}
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export interface YieldExpression extends Node {
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type: "YieldExpression"
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argument?: Expression | null
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delegate: boolean
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}
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export interface TemplateLiteral extends Node {
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type: "TemplateLiteral"
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quasis: Array<TemplateElement>
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expressions: Array<Expression>
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}
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export interface TaggedTemplateExpression extends Node {
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type: "TaggedTemplateExpression"
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tag: Expression
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quasi: TemplateLiteral
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}
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export interface TemplateElement extends Node {
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type: "TemplateElement"
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tail: boolean
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value: {
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cooked?: string | null
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raw: string
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}
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}
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export interface AssignmentProperty extends Node {
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type: "Property"
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key: Expression
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value: Pattern
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kind: "init"
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method: false
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shorthand: boolean
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computed: boolean
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}
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export interface ObjectPattern extends Node {
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type: "ObjectPattern"
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properties: Array<AssignmentProperty | RestElement>
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}
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export interface ArrayPattern extends Node {
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type: "ArrayPattern"
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elements: Array<Pattern | null>
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}
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export interface RestElement extends Node {
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type: "RestElement"
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argument: Pattern
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}
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export interface AssignmentPattern extends Node {
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type: "AssignmentPattern"
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left: Pattern
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right: Expression
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}
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export interface Class extends Node {
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id?: Identifier | null
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superClass?: Expression | null
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body: ClassBody
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}
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export interface ClassBody extends Node {
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type: "ClassBody"
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body: Array<MethodDefinition | PropertyDefinition | StaticBlock>
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}
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export interface MethodDefinition extends Node {
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type: "MethodDefinition"
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key: Expression | PrivateIdentifier
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value: FunctionExpression
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kind: "constructor" | "method" | "get" | "set"
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computed: boolean
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static: boolean
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}
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export interface ClassDeclaration extends Class {
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type: "ClassDeclaration"
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id: Identifier
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}
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export interface ClassExpression extends Class {
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type: "ClassExpression"
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}
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export interface MetaProperty extends Node {
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type: "MetaProperty"
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meta: Identifier
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property: Identifier
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}
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export interface ImportDeclaration extends Node {
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type: "ImportDeclaration"
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specifiers: Array<ImportSpecifier | ImportDefaultSpecifier | ImportNamespaceSpecifier>
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source: Literal
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attributes: Array<ImportAttribute>
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}
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export interface ImportSpecifier extends Node {
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type: "ImportSpecifier"
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imported: Identifier | Literal
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local: Identifier
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}
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export interface ImportDefaultSpecifier extends Node {
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type: "ImportDefaultSpecifier"
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local: Identifier
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}
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export interface ImportNamespaceSpecifier extends Node {
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type: "ImportNamespaceSpecifier"
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local: Identifier
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}
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export interface ImportAttribute extends Node {
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type: "ImportAttribute"
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key: Identifier | Literal
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value: Literal
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}
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export interface ExportNamedDeclaration extends Node {
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type: "ExportNamedDeclaration"
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declaration?: Declaration | null
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specifiers: Array<ExportSpecifier>
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source?: Literal | null
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attributes: Array<ImportAttribute>
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}
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export interface ExportSpecifier extends Node {
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type: "ExportSpecifier"
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exported: Identifier | Literal
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local: Identifier | Literal
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}
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export interface AnonymousFunctionDeclaration extends Function {
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type: "FunctionDeclaration"
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id: null
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body: BlockStatement
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}
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export interface AnonymousClassDeclaration extends Class {
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type: "ClassDeclaration"
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id: null
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}
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export interface ExportDefaultDeclaration extends Node {
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type: "ExportDefaultDeclaration"
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declaration: AnonymousFunctionDeclaration | FunctionDeclaration | AnonymousClassDeclaration | ClassDeclaration | Expression
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}
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export interface ExportAllDeclaration extends Node {
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type: "ExportAllDeclaration"
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source: Literal
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exported?: Identifier | Literal | null
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attributes: Array<ImportAttribute>
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}
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export interface AwaitExpression extends Node {
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type: "AwaitExpression"
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argument: Expression
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}
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export interface ChainExpression extends Node {
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type: "ChainExpression"
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expression: MemberExpression | CallExpression
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}
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export interface ImportExpression extends Node {
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type: "ImportExpression"
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source: Expression
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options: Expression | null
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}
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export interface ParenthesizedExpression extends Node {
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type: "ParenthesizedExpression"
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expression: Expression
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}
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export interface PropertyDefinition extends Node {
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type: "PropertyDefinition"
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key: Expression | PrivateIdentifier
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value?: Expression | null
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computed: boolean
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static: boolean
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}
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export interface PrivateIdentifier extends Node {
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type: "PrivateIdentifier"
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name: string
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}
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export interface StaticBlock extends Node {
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type: "StaticBlock"
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body: Array<Statement>
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}
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export type Statement =
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| ExpressionStatement
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| BlockStatement
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| EmptyStatement
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| DebuggerStatement
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| WithStatement
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| ReturnStatement
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| LabeledStatement
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| BreakStatement
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| ContinueStatement
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| IfStatement
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| SwitchStatement
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| ThrowStatement
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| TryStatement
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| WhileStatement
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| DoWhileStatement
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| ForStatement
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| ForInStatement
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| ForOfStatement
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| Declaration
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export type Declaration =
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| FunctionDeclaration
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| VariableDeclaration
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| ClassDeclaration
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export type Expression =
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| Identifier
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| Literal
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| ThisExpression
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| ArrayExpression
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| ObjectExpression
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| FunctionExpression
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| UnaryExpression
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| UpdateExpression
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| BinaryExpression
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| AssignmentExpression
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| LogicalExpression
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| MemberExpression
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| ConditionalExpression
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| CallExpression
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| NewExpression
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| SequenceExpression
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| ArrowFunctionExpression
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| YieldExpression
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| TemplateLiteral
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| TaggedTemplateExpression
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| ClassExpression
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| MetaProperty
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| AwaitExpression
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| ChainExpression
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| ImportExpression
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| ParenthesizedExpression
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export type Pattern =
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| Identifier
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| MemberExpression
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| ObjectPattern
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| ArrayPattern
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| RestElement
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| AssignmentPattern
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export type ModuleDeclaration =
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| ImportDeclaration
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| ExportNamedDeclaration
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| ExportDefaultDeclaration
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| ExportAllDeclaration
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/**
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* This interface is only used for defining {@link AnyNode}.
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* It exists so that it can be extended by plugins:
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*
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* @example
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* ```typescript
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* declare module 'acorn' {
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* interface NodeTypes {
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* pluginName: FirstNode | SecondNode | ThirdNode | ... | LastNode
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* }
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* }
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* ```
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*/
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interface NodeTypes {
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core: Statement | Expression | Declaration | ModuleDeclaration | Literal | Program | SwitchCase | CatchClause | Property | Super | SpreadElement | TemplateElement | AssignmentProperty | ObjectPattern | ArrayPattern | RestElement | AssignmentPattern | ClassBody | MethodDefinition | MetaProperty | ImportAttribute | ImportSpecifier | ImportDefaultSpecifier | ImportNamespaceSpecifier | ExportSpecifier | AnonymousFunctionDeclaration | AnonymousClassDeclaration | PropertyDefinition | PrivateIdentifier | StaticBlock | VariableDeclarator
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}
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export type AnyNode = NodeTypes[keyof NodeTypes]
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export function parse(input: string, options: Options): Program
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export function parseExpressionAt(input: string, pos: number, options: Options): Expression
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export function tokenizer(input: string, options: Options): {
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getToken(): Token
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[Symbol.iterator](): Iterator<Token>
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}
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export type ecmaVersion = 3 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | "latest"
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export interface Options {
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/**
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* `ecmaVersion` indicates the ECMAScript version to parse. Can be a
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* number, either in year (`2022`) or plain version number (`6`) form,
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* or `"latest"` (the latest the library supports). This influences
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* support for strict mode, the set of reserved words, and support for
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* new syntax features.
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*/
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ecmaVersion: ecmaVersion
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/**
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* `sourceType` indicates the mode the code should be parsed in.
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* Can be either `"script"` or `"module"`. This influences global
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* strict mode and parsing of `import` and `export` declarations.
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*/
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sourceType?: "script" | "module"
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/**
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* a callback that will be called when a semicolon is automatically inserted.
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* @param lastTokEnd the position of the comma as an offset
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* @param lastTokEndLoc location if {@link locations} is enabled
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*/
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onInsertedSemicolon?: (lastTokEnd: number, lastTokEndLoc?: Position) => void
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/**
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* similar to `onInsertedSemicolon`, but for trailing commas
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* @param lastTokEnd the position of the comma as an offset
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* @param lastTokEndLoc location if `locations` is enabled
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*/
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onTrailingComma?: (lastTokEnd: number, lastTokEndLoc?: Position) => void
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/**
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* By default, reserved words are only enforced if ecmaVersion >= 5.
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* Set `allowReserved` to a boolean value to explicitly turn this on
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* an off. When this option has the value "never", reserved words
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* and keywords can also not be used as property names.
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*/
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allowReserved?: boolean | "never"
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/**
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* When enabled, a return at the top level is not considered an error.
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*/
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allowReturnOutsideFunction?: boolean
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/**
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|
* When enabled, import/export statements are not constrained to
|
|
* appearing at the top of the program, and an import.meta expression
|
|
* in a script isn't considered an error.
|
|
*/
|
|
allowImportExportEverywhere?: boolean
|
|
|
|
/**
|
|
* By default, `await` identifiers are allowed to appear at the top-level scope only if {@link ecmaVersion} >= 2022.
|
|
* When enabled, await identifiers are allowed to appear at the top-level scope,
|
|
* but they are still not allowed in non-async functions.
|
|
*/
|
|
allowAwaitOutsideFunction?: boolean
|
|
|
|
/**
|
|
* When enabled, super identifiers are not constrained to
|
|
* appearing in methods and do not raise an error when they appear elsewhere.
|
|
*/
|
|
allowSuperOutsideMethod?: boolean
|
|
|
|
/**
|
|
* When enabled, hashbang directive in the beginning of file is
|
|
* allowed and treated as a line comment. Enabled by default when
|
|
* {@link ecmaVersion} >= 2023.
|
|
*/
|
|
allowHashBang?: boolean
|
|
|
|
/**
|
|
* By default, the parser will verify that private properties are
|
|
* only used in places where they are valid and have been declared.
|
|
* Set this to false to turn such checks off.
|
|
*/
|
|
checkPrivateFields?: boolean
|
|
|
|
/**
|
|
* When `locations` is on, `loc` properties holding objects with
|
|
* `start` and `end` properties as {@link Position} objects will be attached to the
|
|
* nodes.
|
|
*/
|
|
locations?: boolean
|
|
|
|
/**
|
|
* a callback that will cause Acorn to call that export function with object in the same
|
|
* format as tokens returned from `tokenizer().getToken()`. Note
|
|
* that you are not allowed to call the parser from the
|
|
* callback—that will corrupt its internal state.
|
|
*/
|
|
onToken?: ((token: Token) => void) | Token[]
|
|
|
|
|
|
/**
|
|
* This takes a export function or an array.
|
|
*
|
|
* When a export function is passed, Acorn will call that export function with `(block, text, start,
|
|
* end)` parameters whenever a comment is skipped. `block` is a
|
|
* boolean indicating whether this is a block (`/* *\/`) comment,
|
|
* `text` is the content of the comment, and `start` and `end` are
|
|
* character offsets that denote the start and end of the comment.
|
|
* When the {@link locations} option is on, two more parameters are
|
|
* passed, the full locations of {@link Position} export type of the start and
|
|
* end of the comments.
|
|
*
|
|
* When a array is passed, each found comment of {@link Comment} export type is pushed to the array.
|
|
*
|
|
* Note that you are not allowed to call the
|
|
* parser from the callback—that will corrupt its internal state.
|
|
*/
|
|
onComment?: ((
|
|
isBlock: boolean, text: string, start: number, end: number, startLoc?: Position,
|
|
endLoc?: Position
|
|
) => void) | Comment[]
|
|
|
|
/**
|
|
* Nodes have their start and end characters offsets recorded in
|
|
* `start` and `end` properties (directly on the node, rather than
|
|
* the `loc` object, which holds line/column data. To also add a
|
|
* [semi-standardized][range] `range` property holding a `[start,
|
|
* end]` array with the same numbers, set the `ranges` option to
|
|
* `true`.
|
|
*/
|
|
ranges?: boolean
|
|
|
|
/**
|
|
* It is possible to parse multiple files into a single AST by
|
|
* passing the tree produced by parsing the first file as
|
|
* `program` option in subsequent parses. This will add the
|
|
* toplevel forms of the parsed file to the `Program` (top) node
|
|
* of an existing parse tree.
|
|
*/
|
|
program?: Node
|
|
|
|
/**
|
|
* When {@link locations} is on, you can pass this to record the source
|
|
* file in every node's `loc` object.
|
|
*/
|
|
sourceFile?: string
|
|
|
|
/**
|
|
* This value, if given, is stored in every node, whether {@link locations} is on or off.
|
|
*/
|
|
directSourceFile?: string
|
|
|
|
/**
|
|
* When enabled, parenthesized expressions are represented by
|
|
* (non-standard) ParenthesizedExpression nodes
|
|
*/
|
|
preserveParens?: boolean
|
|
}
|
|
|
|
export class Parser {
|
|
options: Options
|
|
input: string
|
|
|
|
protected constructor(options: Options, input: string, startPos?: number)
|
|
parse(): Program
|
|
|
|
static parse(input: string, options: Options): Program
|
|
static parseExpressionAt(input: string, pos: number, options: Options): Expression
|
|
static tokenizer(input: string, options: Options): {
|
|
getToken(): Token
|
|
[Symbol.iterator](): Iterator<Token>
|
|
}
|
|
static extend(...plugins: ((BaseParser: typeof Parser) => typeof Parser)[]): typeof Parser
|
|
}
|
|
|
|
export const defaultOptions: Options
|
|
|
|
export function getLineInfo(input: string, offset: number): Position
|
|
|
|
export class TokenType {
|
|
label: string
|
|
keyword: string | undefined
|
|
}
|
|
|
|
export const tokTypes: {
|
|
num: TokenType
|
|
regexp: TokenType
|
|
string: TokenType
|
|
name: TokenType
|
|
privateId: TokenType
|
|
eof: TokenType
|
|
|
|
bracketL: TokenType
|
|
bracketR: TokenType
|
|
braceL: TokenType
|
|
braceR: TokenType
|
|
parenL: TokenType
|
|
parenR: TokenType
|
|
comma: TokenType
|
|
semi: TokenType
|
|
colon: TokenType
|
|
dot: TokenType
|
|
question: TokenType
|
|
questionDot: TokenType
|
|
arrow: TokenType
|
|
template: TokenType
|
|
invalidTemplate: TokenType
|
|
ellipsis: TokenType
|
|
backQuote: TokenType
|
|
dollarBraceL: TokenType
|
|
|
|
eq: TokenType
|
|
assign: TokenType
|
|
incDec: TokenType
|
|
prefix: TokenType
|
|
logicalOR: TokenType
|
|
logicalAND: TokenType
|
|
bitwiseOR: TokenType
|
|
bitwiseXOR: TokenType
|
|
bitwiseAND: TokenType
|
|
equality: TokenType
|
|
relational: TokenType
|
|
bitShift: TokenType
|
|
plusMin: TokenType
|
|
modulo: TokenType
|
|
star: TokenType
|
|
slash: TokenType
|
|
starstar: TokenType
|
|
coalesce: TokenType
|
|
|
|
_break: TokenType
|
|
_case: TokenType
|
|
_catch: TokenType
|
|
_continue: TokenType
|
|
_debugger: TokenType
|
|
_default: TokenType
|
|
_do: TokenType
|
|
_else: TokenType
|
|
_finally: TokenType
|
|
_for: TokenType
|
|
_function: TokenType
|
|
_if: TokenType
|
|
_return: TokenType
|
|
_switch: TokenType
|
|
_throw: TokenType
|
|
_try: TokenType
|
|
_var: TokenType
|
|
_const: TokenType
|
|
_while: TokenType
|
|
_with: TokenType
|
|
_new: TokenType
|
|
_this: TokenType
|
|
_super: TokenType
|
|
_class: TokenType
|
|
_extends: TokenType
|
|
_export: TokenType
|
|
_import: TokenType
|
|
_null: TokenType
|
|
_true: TokenType
|
|
_false: TokenType
|
|
_in: TokenType
|
|
_instanceof: TokenType
|
|
_typeof: TokenType
|
|
_void: TokenType
|
|
_delete: TokenType
|
|
}
|
|
|
|
export interface Comment {
|
|
type: "Line" | "Block"
|
|
value: string
|
|
start: number
|
|
end: number
|
|
loc?: SourceLocation
|
|
range?: [number, number]
|
|
}
|
|
|
|
export class Token {
|
|
type: TokenType
|
|
start: number
|
|
end: number
|
|
loc?: SourceLocation
|
|
range?: [number, number]
|
|
}
|
|
|
|
export const version: string
|