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ghaction-upx/node_modules/@babel/parser/lib/plugins/flow.js

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Update node_modules
2020-01-23 01:49:02 -07:00
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _types = require("../tokenizer/types");
var N = _interopRequireWildcard(require("../types"));
var _context = require("../tokenizer/context");
var _identifier = require("../util/identifier");
var _scopeflags = require("../util/scopeflags");
function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
const reservedTypes = new Set(["_", "any", "bool", "boolean", "empty", "extends", "false", "interface", "mixed", "null", "number", "static", "string", "true", "typeof", "void"]);
function isEsModuleType(bodyElement) {
return bodyElement.type === "DeclareExportAllDeclaration" || bodyElement.type === "DeclareExportDeclaration" && (!bodyElement.declaration || bodyElement.declaration.type !== "TypeAlias" && bodyElement.declaration.type !== "InterfaceDeclaration");
}
function hasTypeImportKind(node) {
return node.importKind === "type" || node.importKind === "typeof";
}
function isMaybeDefaultImport(state) {
return (state.type === _types.types.name || !!state.type.keyword) && state.value !== "from";
}
const exportSuggestions = {
const: "declare export var",
let: "declare export var",
type: "export type",
interface: "export interface"
};
function partition(list, test) {
const list1 = [];
const list2 = [];
for (let i = 0; i < list.length; i++) {
(test(list[i], i, list) ? list1 : list2).push(list[i]);
}
return [list1, list2];
}
const FLOW_PRAGMA_REGEX = /\*?\s*@((?:no)?flow)\b/;
var _default = superClass => class extends superClass {
constructor(options, input) {
super(options, input);
this.flowPragma = undefined;
}
shouldParseTypes() {
return this.getPluginOption("flow", "all") || this.flowPragma === "flow";
}
shouldParseEnums() {
return !!this.getPluginOption("flow", "enums");
}
finishToken(type, val) {
if (type !== _types.types.string && type !== _types.types.semi && type !== _types.types.interpreterDirective) {
if (this.flowPragma === undefined) {
this.flowPragma = null;
}
}
return super.finishToken(type, val);
}
addComment(comment) {
if (this.flowPragma === undefined) {
const matches = FLOW_PRAGMA_REGEX.exec(comment.value);
if (!matches) {} else if (matches[1] === "flow") {
this.flowPragma = "flow";
} else if (matches[1] === "noflow") {
this.flowPragma = "noflow";
} else {
throw new Error("Unexpected flow pragma");
}
}
return super.addComment(comment);
}
flowParseTypeInitialiser(tok) {
const oldInType = this.state.inType;
this.state.inType = true;
this.expect(tok || _types.types.colon);
const type = this.flowParseType();
this.state.inType = oldInType;
return type;
}
flowParsePredicate() {
const node = this.startNode();
const moduloLoc = this.state.startLoc;
const moduloPos = this.state.start;
this.expect(_types.types.modulo);
const checksLoc = this.state.startLoc;
this.expectContextual("checks");
if (moduloLoc.line !== checksLoc.line || moduloLoc.column !== checksLoc.column - 1) {
this.raise(moduloPos, "Spaces between ´%´ and ´checks´ are not allowed here.");
}
if (this.eat(_types.types.parenL)) {
node.value = this.parseExpression();
this.expect(_types.types.parenR);
return this.finishNode(node, "DeclaredPredicate");
} else {
return this.finishNode(node, "InferredPredicate");
}
}
flowParseTypeAndPredicateInitialiser() {
const oldInType = this.state.inType;
this.state.inType = true;
this.expect(_types.types.colon);
let type = null;
let predicate = null;
if (this.match(_types.types.modulo)) {
this.state.inType = oldInType;
predicate = this.flowParsePredicate();
} else {
type = this.flowParseType();
this.state.inType = oldInType;
if (this.match(_types.types.modulo)) {
predicate = this.flowParsePredicate();
}
}
return [type, predicate];
}
flowParseDeclareClass(node) {
this.next();
this.flowParseInterfaceish(node, true);
return this.finishNode(node, "DeclareClass");
}
flowParseDeclareFunction(node) {
this.next();
const id = node.id = this.parseIdentifier();
const typeNode = this.startNode();
const typeContainer = this.startNode();
if (this.isRelational("<")) {
typeNode.typeParameters = this.flowParseTypeParameterDeclaration();
} else {
typeNode.typeParameters = null;
}
this.expect(_types.types.parenL);
const tmp = this.flowParseFunctionTypeParams();
typeNode.params = tmp.params;
typeNode.rest = tmp.rest;
this.expect(_types.types.parenR);
[typeNode.returnType, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
typeContainer.typeAnnotation = this.finishNode(typeNode, "FunctionTypeAnnotation");
id.typeAnnotation = this.finishNode(typeContainer, "TypeAnnotation");
this.resetEndLocation(id);
this.semicolon();
return this.finishNode(node, "DeclareFunction");
}
flowParseDeclare(node, insideModule) {
if (this.match(_types.types._class)) {
return this.flowParseDeclareClass(node);
} else if (this.match(_types.types._function)) {
return this.flowParseDeclareFunction(node);
} else if (this.match(_types.types._var)) {
return this.flowParseDeclareVariable(node);
} else if (this.eatContextual("module")) {
if (this.match(_types.types.dot)) {
return this.flowParseDeclareModuleExports(node);
} else {
if (insideModule) {
this.raise(this.state.lastTokStart, "`declare module` cannot be used inside another `declare module`");
}
return this.flowParseDeclareModule(node);
}
} else if (this.isContextual("type")) {
return this.flowParseDeclareTypeAlias(node);
} else if (this.isContextual("opaque")) {
return this.flowParseDeclareOpaqueType(node);
} else if (this.isContextual("interface")) {
return this.flowParseDeclareInterface(node);
} else if (this.match(_types.types._export)) {
return this.flowParseDeclareExportDeclaration(node, insideModule);
} else {
throw this.unexpected();
}
}
flowParseDeclareVariable(node) {
this.next();
node.id = this.flowParseTypeAnnotatableIdentifier(true);
this.scope.declareName(node.id.name, _scopeflags.BIND_VAR, node.id.start);
this.semicolon();
return this.finishNode(node, "DeclareVariable");
}
flowParseDeclareModule(node) {
this.scope.enter(_scopeflags.SCOPE_OTHER);
if (this.match(_types.types.string)) {
node.id = this.parseExprAtom();
} else {
node.id = this.parseIdentifier();
}
const bodyNode = node.body = this.startNode();
const body = bodyNode.body = [];
this.expect(_types.types.braceL);
while (!this.match(_types.types.braceR)) {
let bodyNode = this.startNode();
if (this.match(_types.types._import)) {
this.next();
if (!this.isContextual("type") && !this.match(_types.types._typeof)) {
this.raise(this.state.lastTokStart, "Imports within a `declare module` body must always be `import type` or `import typeof`");
}
this.parseImport(bodyNode);
} else {
this.expectContextual("declare", "Only declares and type imports are allowed inside declare module");
bodyNode = this.flowParseDeclare(bodyNode, true);
}
body.push(bodyNode);
}
this.scope.exit();
this.expect(_types.types.braceR);
this.finishNode(bodyNode, "BlockStatement");
let kind = null;
let hasModuleExport = false;
const errorMessage = "Found both `declare module.exports` and `declare export` in the same module. " + "Modules can only have 1 since they are either an ES module or they are a CommonJS module";
body.forEach(bodyElement => {
if (isEsModuleType(bodyElement)) {
if (kind === "CommonJS") {
this.raise(bodyElement.start, errorMessage);
}
kind = "ES";
} else if (bodyElement.type === "DeclareModuleExports") {
if (hasModuleExport) {
this.raise(bodyElement.start, "Duplicate `declare module.exports` statement");
}
if (kind === "ES") this.raise(bodyElement.start, errorMessage);
kind = "CommonJS";
hasModuleExport = true;
}
});
node.kind = kind || "CommonJS";
return this.finishNode(node, "DeclareModule");
}
flowParseDeclareExportDeclaration(node, insideModule) {
this.expect(_types.types._export);
if (this.eat(_types.types._default)) {
if (this.match(_types.types._function) || this.match(_types.types._class)) {
node.declaration = this.flowParseDeclare(this.startNode());
} else {
node.declaration = this.flowParseType();
this.semicolon();
}
node.default = true;
return this.finishNode(node, "DeclareExportDeclaration");
} else {
if (this.match(_types.types._const) || this.isLet() || (this.isContextual("type") || this.isContextual("interface")) && !insideModule) {
const label = this.state.value;
const suggestion = exportSuggestions[label];
this.unexpected(this.state.start, `\`declare export ${label}\` is not supported. Use \`${suggestion}\` instead`);
}
if (this.match(_types.types._var) || this.match(_types.types._function) || this.match(_types.types._class) || this.isContextual("opaque")) {
node.declaration = this.flowParseDeclare(this.startNode());
node.default = false;
return this.finishNode(node, "DeclareExportDeclaration");
} else if (this.match(_types.types.star) || this.match(_types.types.braceL) || this.isContextual("interface") || this.isContextual("type") || this.isContextual("opaque")) {
node = this.parseExport(node);
if (node.type === "ExportNamedDeclaration") {
node.type = "ExportDeclaration";
node.default = false;
delete node.exportKind;
}
node.type = "Declare" + node.type;
return node;
}
}
throw this.unexpected();
}
flowParseDeclareModuleExports(node) {
this.next();
this.expectContextual("exports");
node.typeAnnotation = this.flowParseTypeAnnotation();
this.semicolon();
return this.finishNode(node, "DeclareModuleExports");
}
flowParseDeclareTypeAlias(node) {
this.next();
this.flowParseTypeAlias(node);
node.type = "DeclareTypeAlias";
return node;
}
flowParseDeclareOpaqueType(node) {
this.next();
this.flowParseOpaqueType(node, true);
node.type = "DeclareOpaqueType";
return node;
}
flowParseDeclareInterface(node) {
this.next();
this.flowParseInterfaceish(node);
return this.finishNode(node, "DeclareInterface");
}
flowParseInterfaceish(node, isClass = false) {
node.id = this.flowParseRestrictedIdentifier(!isClass, true);
this.scope.declareName(node.id.name, isClass ? _scopeflags.BIND_FUNCTION : _scopeflags.BIND_LEXICAL, node.id.start);
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterDeclaration();
} else {
node.typeParameters = null;
}
node.extends = [];
node.implements = [];
node.mixins = [];
if (this.eat(_types.types._extends)) {
do {
node.extends.push(this.flowParseInterfaceExtends());
} while (!isClass && this.eat(_types.types.comma));
}
if (this.isContextual("mixins")) {
this.next();
do {
node.mixins.push(this.flowParseInterfaceExtends());
} while (this.eat(_types.types.comma));
}
if (this.isContextual("implements")) {
this.next();
do {
node.implements.push(this.flowParseInterfaceExtends());
} while (this.eat(_types.types.comma));
}
node.body = this.flowParseObjectType({
allowStatic: isClass,
allowExact: false,
allowSpread: false,
allowProto: isClass,
allowInexact: false
});
}
flowParseInterfaceExtends() {
const node = this.startNode();
node.id = this.flowParseQualifiedTypeIdentifier();
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterInstantiation();
} else {
node.typeParameters = null;
}
return this.finishNode(node, "InterfaceExtends");
}
flowParseInterface(node) {
this.flowParseInterfaceish(node);
return this.finishNode(node, "InterfaceDeclaration");
}
checkNotUnderscore(word) {
if (word === "_") {
this.raise(this.state.start, "`_` is only allowed as a type argument to call or new");
}
}
checkReservedType(word, startLoc, declaration) {
if (!reservedTypes.has(word)) return;
if (declaration) {
this.raise(startLoc, `Cannot overwrite reserved type ${word}`);
return;
}
this.raise(startLoc, `Unexpected reserved type ${word}`);
}
flowParseRestrictedIdentifier(liberal, declaration) {
this.checkReservedType(this.state.value, this.state.start, declaration);
return this.parseIdentifier(liberal);
}
flowParseTypeAlias(node) {
node.id = this.flowParseRestrictedIdentifier(false, true);
this.scope.declareName(node.id.name, _scopeflags.BIND_LEXICAL, node.id.start);
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterDeclaration();
} else {
node.typeParameters = null;
}
node.right = this.flowParseTypeInitialiser(_types.types.eq);
this.semicolon();
return this.finishNode(node, "TypeAlias");
}
flowParseOpaqueType(node, declare) {
this.expectContextual("type");
node.id = this.flowParseRestrictedIdentifier(true, true);
this.scope.declareName(node.id.name, _scopeflags.BIND_LEXICAL, node.id.start);
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterDeclaration();
} else {
node.typeParameters = null;
}
node.supertype = null;
if (this.match(_types.types.colon)) {
node.supertype = this.flowParseTypeInitialiser(_types.types.colon);
}
node.impltype = null;
if (!declare) {
node.impltype = this.flowParseTypeInitialiser(_types.types.eq);
}
this.semicolon();
return this.finishNode(node, "OpaqueType");
}
flowParseTypeParameter(requireDefault = false) {
const nodeStart = this.state.start;
const node = this.startNode();
const variance = this.flowParseVariance();
const ident = this.flowParseTypeAnnotatableIdentifier();
node.name = ident.name;
node.variance = variance;
node.bound = ident.typeAnnotation;
if (this.match(_types.types.eq)) {
this.eat(_types.types.eq);
node.default = this.flowParseType();
} else {
if (requireDefault) {
this.raise(nodeStart, "Type parameter declaration needs a default, since a preceding type parameter declaration has a default.");
}
}
return this.finishNode(node, "TypeParameter");
}
flowParseTypeParameterDeclaration() {
const oldInType = this.state.inType;
const node = this.startNode();
node.params = [];
this.state.inType = true;
if (this.isRelational("<") || this.match(_types.types.jsxTagStart)) {
this.next();
} else {
this.unexpected();
}
let defaultRequired = false;
do {
const typeParameter = this.flowParseTypeParameter(defaultRequired);
node.params.push(typeParameter);
if (typeParameter.default) {
defaultRequired = true;
}
if (!this.isRelational(">")) {
this.expect(_types.types.comma);
}
} while (!this.isRelational(">"));
this.expectRelational(">");
this.state.inType = oldInType;
return this.finishNode(node, "TypeParameterDeclaration");
}
flowParseTypeParameterInstantiation() {
const node = this.startNode();
const oldInType = this.state.inType;
node.params = [];
this.state.inType = true;
this.expectRelational("<");
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
this.state.noAnonFunctionType = false;
while (!this.isRelational(">")) {
node.params.push(this.flowParseType());
if (!this.isRelational(">")) {
this.expect(_types.types.comma);
}
}
this.state.noAnonFunctionType = oldNoAnonFunctionType;
this.expectRelational(">");
this.state.inType = oldInType;
return this.finishNode(node, "TypeParameterInstantiation");
}
flowParseTypeParameterInstantiationCallOrNew() {
const node = this.startNode();
const oldInType = this.state.inType;
node.params = [];
this.state.inType = true;
this.expectRelational("<");
while (!this.isRelational(">")) {
node.params.push(this.flowParseTypeOrImplicitInstantiation());
if (!this.isRelational(">")) {
this.expect(_types.types.comma);
}
}
this.expectRelational(">");
this.state.inType = oldInType;
return this.finishNode(node, "TypeParameterInstantiation");
}
flowParseInterfaceType() {
const node = this.startNode();
this.expectContextual("interface");
node.extends = [];
if (this.eat(_types.types._extends)) {
do {
node.extends.push(this.flowParseInterfaceExtends());
} while (this.eat(_types.types.comma));
}
node.body = this.flowParseObjectType({
allowStatic: false,
allowExact: false,
allowSpread: false,
allowProto: false,
allowInexact: false
});
return this.finishNode(node, "InterfaceTypeAnnotation");
}
flowParseObjectPropertyKey() {
return this.match(_types.types.num) || this.match(_types.types.string) ? this.parseExprAtom() : this.parseIdentifier(true);
}
flowParseObjectTypeIndexer(node, isStatic, variance) {
node.static = isStatic;
if (this.lookahead().type === _types.types.colon) {
node.id = this.flowParseObjectPropertyKey();
node.key = this.flowParseTypeInitialiser();
} else {
node.id = null;
node.key = this.flowParseType();
}
this.expect(_types.types.bracketR);
node.value = this.flowParseTypeInitialiser();
node.variance = variance;
return this.finishNode(node, "ObjectTypeIndexer");
}
flowParseObjectTypeInternalSlot(node, isStatic) {
node.static = isStatic;
node.id = this.flowParseObjectPropertyKey();
this.expect(_types.types.bracketR);
this.expect(_types.types.bracketR);
if (this.isRelational("<") || this.match(_types.types.parenL)) {
node.method = true;
node.optional = false;
node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(node.start, node.loc.start));
} else {
node.method = false;
if (this.eat(_types.types.question)) {
node.optional = true;
}
node.value = this.flowParseTypeInitialiser();
}
return this.finishNode(node, "ObjectTypeInternalSlot");
}
flowParseObjectTypeMethodish(node) {
node.params = [];
node.rest = null;
node.typeParameters = null;
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterDeclaration();
}
this.expect(_types.types.parenL);
while (!this.match(_types.types.parenR) && !this.match(_types.types.ellipsis)) {
node.params.push(this.flowParseFunctionTypeParam());
if (!this.match(_types.types.parenR)) {
this.expect(_types.types.comma);
}
}
if (this.eat(_types.types.ellipsis)) {
node.rest = this.flowParseFunctionTypeParam();
}
this.expect(_types.types.parenR);
node.returnType = this.flowParseTypeInitialiser();
return this.finishNode(node, "FunctionTypeAnnotation");
}
flowParseObjectTypeCallProperty(node, isStatic) {
const valueNode = this.startNode();
node.static = isStatic;
node.value = this.flowParseObjectTypeMethodish(valueNode);
return this.finishNode(node, "ObjectTypeCallProperty");
}
flowParseObjectType({
allowStatic,
allowExact,
allowSpread,
allowProto,
allowInexact
}) {
const oldInType = this.state.inType;
this.state.inType = true;
const nodeStart = this.startNode();
nodeStart.callProperties = [];
nodeStart.properties = [];
nodeStart.indexers = [];
nodeStart.internalSlots = [];
let endDelim;
let exact;
let inexact = false;
if (allowExact && this.match(_types.types.braceBarL)) {
this.expect(_types.types.braceBarL);
endDelim = _types.types.braceBarR;
exact = true;
} else {
this.expect(_types.types.braceL);
endDelim = _types.types.braceR;
exact = false;
}
nodeStart.exact = exact;
while (!this.match(endDelim)) {
let isStatic = false;
let protoStart = null;
let inexactStart = null;
const node = this.startNode();
if (allowProto && this.isContextual("proto")) {
const lookahead = this.lookahead();
if (lookahead.type !== _types.types.colon && lookahead.type !== _types.types.question) {
this.next();
protoStart = this.state.start;
allowStatic = false;
}
}
if (allowStatic && this.isContextual("static")) {
const lookahead = this.lookahead();
if (lookahead.type !== _types.types.colon && lookahead.type !== _types.types.question) {
this.next();
isStatic = true;
}
}
const variance = this.flowParseVariance();
if (this.eat(_types.types.bracketL)) {
if (protoStart != null) {
this.unexpected(protoStart);
}
if (this.eat(_types.types.bracketL)) {
if (variance) {
this.unexpected(variance.start);
}
nodeStart.internalSlots.push(this.flowParseObjectTypeInternalSlot(node, isStatic));
} else {
nodeStart.indexers.push(this.flowParseObjectTypeIndexer(node, isStatic, variance));
}
} else if (this.match(_types.types.parenL) || this.isRelational("<")) {
if (protoStart != null) {
this.unexpected(protoStart);
}
if (variance) {
this.unexpected(variance.start);
}
nodeStart.callProperties.push(this.flowParseObjectTypeCallProperty(node, isStatic));
} else {
let kind = "init";
if (this.isContextual("get") || this.isContextual("set")) {
const lookahead = this.lookahead();
if (lookahead.type === _types.types.name || lookahead.type === _types.types.string || lookahead.type === _types.types.num) {
kind = this.state.value;
this.next();
}
}
const propOrInexact = this.flowParseObjectTypeProperty(node, isStatic, protoStart, variance, kind, allowSpread, allowInexact != null ? allowInexact : !exact);
if (propOrInexact === null) {
inexact = true;
inexactStart = this.state.lastTokStart;
} else {
nodeStart.properties.push(propOrInexact);
}
}
this.flowObjectTypeSemicolon();
if (inexactStart && !this.match(_types.types.braceR) && !this.match(_types.types.braceBarR)) {
this.raise(inexactStart, "Explicit inexact syntax must appear at the end of an inexact object");
}
}
this.expect(endDelim);
if (allowSpread) {
nodeStart.inexact = inexact;
}
const out = this.finishNode(nodeStart, "ObjectTypeAnnotation");
this.state.inType = oldInType;
return out;
}
flowParseObjectTypeProperty(node, isStatic, protoStart, variance, kind, allowSpread, allowInexact) {
if (this.eat(_types.types.ellipsis)) {
const isInexactToken = this.match(_types.types.comma) || this.match(_types.types.semi) || this.match(_types.types.braceR) || this.match(_types.types.braceBarR);
if (isInexactToken) {
if (!allowSpread) {
this.raise(this.state.lastTokStart, "Explicit inexact syntax cannot appear in class or interface definitions");
} else if (!allowInexact) {
this.raise(this.state.lastTokStart, "Explicit inexact syntax cannot appear inside an explicit exact object type");
}
if (variance) {
this.raise(variance.start, "Explicit inexact syntax cannot have variance");
}
return null;
}
if (!allowSpread) {
this.raise(this.state.lastTokStart, "Spread operator cannot appear in class or interface definitions");
}
if (protoStart != null) {
this.unexpected(protoStart);
}
if (variance) {
this.raise(variance.start, "Spread properties cannot have variance");
}
node.argument = this.flowParseType();
return this.finishNode(node, "ObjectTypeSpreadProperty");
} else {
node.key = this.flowParseObjectPropertyKey();
node.static = isStatic;
node.proto = protoStart != null;
node.kind = kind;
let optional = false;
if (this.isRelational("<") || this.match(_types.types.parenL)) {
node.method = true;
if (protoStart != null) {
this.unexpected(protoStart);
}
if (variance) {
this.unexpected(variance.start);
}
node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(node.start, node.loc.start));
if (kind === "get" || kind === "set") {
this.flowCheckGetterSetterParams(node);
}
} else {
if (kind !== "init") this.unexpected();
node.method = false;
if (this.eat(_types.types.question)) {
optional = true;
}
node.value = this.flowParseTypeInitialiser();
node.variance = variance;
}
node.optional = optional;
return this.finishNode(node, "ObjectTypeProperty");
}
}
flowCheckGetterSetterParams(property) {
const paramCount = property.kind === "get" ? 0 : 1;
const start = property.start;
const length = property.value.params.length + (property.value.rest ? 1 : 0);
if (length !== paramCount) {
if (property.kind === "get") {
this.raise(start, "getter must not have any formal parameters");
} else {
this.raise(start, "setter must have exactly one formal parameter");
}
}
if (property.kind === "set" && property.value.rest) {
this.raise(start, "setter function argument must not be a rest parameter");
}
}
flowObjectTypeSemicolon() {
if (!this.eat(_types.types.semi) && !this.eat(_types.types.comma) && !this.match(_types.types.braceR) && !this.match(_types.types.braceBarR)) {
this.unexpected();
}
}
flowParseQualifiedTypeIdentifier(startPos, startLoc, id) {
startPos = startPos || this.state.start;
startLoc = startLoc || this.state.startLoc;
let node = id || this.flowParseRestrictedIdentifier(true);
while (this.eat(_types.types.dot)) {
const node2 = this.startNodeAt(startPos, startLoc);
node2.qualification = node;
node2.id = this.flowParseRestrictedIdentifier(true);
node = this.finishNode(node2, "QualifiedTypeIdentifier");
}
return node;
}
flowParseGenericType(startPos, startLoc, id) {
const node = this.startNodeAt(startPos, startLoc);
node.typeParameters = null;
node.id = this.flowParseQualifiedTypeIdentifier(startPos, startLoc, id);
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterInstantiation();
}
return this.finishNode(node, "GenericTypeAnnotation");
}
flowParseTypeofType() {
const node = this.startNode();
this.expect(_types.types._typeof);
node.argument = this.flowParsePrimaryType();
return this.finishNode(node, "TypeofTypeAnnotation");
}
flowParseTupleType() {
const node = this.startNode();
node.types = [];
this.expect(_types.types.bracketL);
while (this.state.pos < this.length && !this.match(_types.types.bracketR)) {
node.types.push(this.flowParseType());
if (this.match(_types.types.bracketR)) break;
this.expect(_types.types.comma);
}
this.expect(_types.types.bracketR);
return this.finishNode(node, "TupleTypeAnnotation");
}
flowParseFunctionTypeParam() {
let name = null;
let optional = false;
let typeAnnotation = null;
const node = this.startNode();
const lh = this.lookahead();
if (lh.type === _types.types.colon || lh.type === _types.types.question) {
name = this.parseIdentifier();
if (this.eat(_types.types.question)) {
optional = true;
}
typeAnnotation = this.flowParseTypeInitialiser();
} else {
typeAnnotation = this.flowParseType();
}
node.name = name;
node.optional = optional;
node.typeAnnotation = typeAnnotation;
return this.finishNode(node, "FunctionTypeParam");
}
reinterpretTypeAsFunctionTypeParam(type) {
const node = this.startNodeAt(type.start, type.loc.start);
node.name = null;
node.optional = false;
node.typeAnnotation = type;
return this.finishNode(node, "FunctionTypeParam");
}
flowParseFunctionTypeParams(params = []) {
let rest = null;
while (!this.match(_types.types.parenR) && !this.match(_types.types.ellipsis)) {
params.push(this.flowParseFunctionTypeParam());
if (!this.match(_types.types.parenR)) {
this.expect(_types.types.comma);
}
}
if (this.eat(_types.types.ellipsis)) {
rest = this.flowParseFunctionTypeParam();
}
return {
params,
rest
};
}
flowIdentToTypeAnnotation(startPos, startLoc, node, id) {
switch (id.name) {
case "any":
return this.finishNode(node, "AnyTypeAnnotation");
case "bool":
case "boolean":
return this.finishNode(node, "BooleanTypeAnnotation");
case "mixed":
return this.finishNode(node, "MixedTypeAnnotation");
case "empty":
return this.finishNode(node, "EmptyTypeAnnotation");
case "number":
return this.finishNode(node, "NumberTypeAnnotation");
case "string":
return this.finishNode(node, "StringTypeAnnotation");
default:
this.checkNotUnderscore(id.name);
return this.flowParseGenericType(startPos, startLoc, id);
}
}
flowParsePrimaryType() {
const startPos = this.state.start;
const startLoc = this.state.startLoc;
const node = this.startNode();
let tmp;
let type;
let isGroupedType = false;
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
switch (this.state.type) {
case _types.types.name:
if (this.isContextual("interface")) {
return this.flowParseInterfaceType();
}
return this.flowIdentToTypeAnnotation(startPos, startLoc, node, this.parseIdentifier());
case _types.types.braceL:
return this.flowParseObjectType({
allowStatic: false,
allowExact: false,
allowSpread: true,
allowProto: false,
allowInexact: true
});
case _types.types.braceBarL:
return this.flowParseObjectType({
allowStatic: false,
allowExact: true,
allowSpread: true,
allowProto: false,
allowInexact: false
});
case _types.types.bracketL:
this.state.noAnonFunctionType = false;
type = this.flowParseTupleType();
this.state.noAnonFunctionType = oldNoAnonFunctionType;
return type;
case _types.types.relational:
if (this.state.value === "<") {
node.typeParameters = this.flowParseTypeParameterDeclaration();
this.expect(_types.types.parenL);
tmp = this.flowParseFunctionTypeParams();
node.params = tmp.params;
node.rest = tmp.rest;
this.expect(_types.types.parenR);
this.expect(_types.types.arrow);
node.returnType = this.flowParseType();
return this.finishNode(node, "FunctionTypeAnnotation");
}
break;
case _types.types.parenL:
this.next();
if (!this.match(_types.types.parenR) && !this.match(_types.types.ellipsis)) {
if (this.match(_types.types.name)) {
const token = this.lookahead().type;
isGroupedType = token !== _types.types.question && token !== _types.types.colon;
} else {
isGroupedType = true;
}
}
if (isGroupedType) {
this.state.noAnonFunctionType = false;
type = this.flowParseType();
this.state.noAnonFunctionType = oldNoAnonFunctionType;
if (this.state.noAnonFunctionType || !(this.match(_types.types.comma) || this.match(_types.types.parenR) && this.lookahead().type === _types.types.arrow)) {
this.expect(_types.types.parenR);
return type;
} else {
this.eat(_types.types.comma);
}
}
if (type) {
tmp = this.flowParseFunctionTypeParams([this.reinterpretTypeAsFunctionTypeParam(type)]);
} else {
tmp = this.flowParseFunctionTypeParams();
}
node.params = tmp.params;
node.rest = tmp.rest;
this.expect(_types.types.parenR);
this.expect(_types.types.arrow);
node.returnType = this.flowParseType();
node.typeParameters = null;
return this.finishNode(node, "FunctionTypeAnnotation");
case _types.types.string:
return this.parseLiteral(this.state.value, "StringLiteralTypeAnnotation");
case _types.types._true:
case _types.types._false:
node.value = this.match(_types.types._true);
this.next();
return this.finishNode(node, "BooleanLiteralTypeAnnotation");
case _types.types.plusMin:
if (this.state.value === "-") {
this.next();
if (this.match(_types.types.num)) {
return this.parseLiteral(-this.state.value, "NumberLiteralTypeAnnotation", node.start, node.loc.start);
}
if (this.match(_types.types.bigint)) {
return this.parseLiteral(-this.state.value, "BigIntLiteralTypeAnnotation", node.start, node.loc.start);
}
throw this.raise(this.state.start, `Unexpected token, expected "number" or "bigint"`);
}
this.unexpected();
case _types.types.num:
return this.parseLiteral(this.state.value, "NumberLiteralTypeAnnotation");
case _types.types.bigint:
return this.parseLiteral(this.state.value, "BigIntLiteralTypeAnnotation");
case _types.types._void:
this.next();
return this.finishNode(node, "VoidTypeAnnotation");
case _types.types._null:
this.next();
return this.finishNode(node, "NullLiteralTypeAnnotation");
case _types.types._this:
this.next();
return this.finishNode(node, "ThisTypeAnnotation");
case _types.types.star:
this.next();
return this.finishNode(node, "ExistsTypeAnnotation");
default:
if (this.state.type.keyword === "typeof") {
return this.flowParseTypeofType();
} else if (this.state.type.keyword) {
const label = this.state.type.label;
this.next();
return super.createIdentifier(node, label);
}
}
throw this.unexpected();
}
flowParsePostfixType() {
const startPos = this.state.start,
startLoc = this.state.startLoc;
let type = this.flowParsePrimaryType();
while (this.match(_types.types.bracketL) && !this.canInsertSemicolon()) {
const node = this.startNodeAt(startPos, startLoc);
node.elementType = type;
this.expect(_types.types.bracketL);
this.expect(_types.types.bracketR);
type = this.finishNode(node, "ArrayTypeAnnotation");
}
return type;
}
flowParsePrefixType() {
const node = this.startNode();
if (this.eat(_types.types.question)) {
node.typeAnnotation = this.flowParsePrefixType();
return this.finishNode(node, "NullableTypeAnnotation");
} else {
return this.flowParsePostfixType();
}
}
flowParseAnonFunctionWithoutParens() {
const param = this.flowParsePrefixType();
if (!this.state.noAnonFunctionType && this.eat(_types.types.arrow)) {
const node = this.startNodeAt(param.start, param.loc.start);
node.params = [this.reinterpretTypeAsFunctionTypeParam(param)];
node.rest = null;
node.returnType = this.flowParseType();
node.typeParameters = null;
return this.finishNode(node, "FunctionTypeAnnotation");
}
return param;
}
flowParseIntersectionType() {
const node = this.startNode();
this.eat(_types.types.bitwiseAND);
const type = this.flowParseAnonFunctionWithoutParens();
node.types = [type];
while (this.eat(_types.types.bitwiseAND)) {
node.types.push(this.flowParseAnonFunctionWithoutParens());
}
return node.types.length === 1 ? type : this.finishNode(node, "IntersectionTypeAnnotation");
}
flowParseUnionType() {
const node = this.startNode();
this.eat(_types.types.bitwiseOR);
const type = this.flowParseIntersectionType();
node.types = [type];
while (this.eat(_types.types.bitwiseOR)) {
node.types.push(this.flowParseIntersectionType());
}
return node.types.length === 1 ? type : this.finishNode(node, "UnionTypeAnnotation");
}
flowParseType() {
const oldInType = this.state.inType;
this.state.inType = true;
const type = this.flowParseUnionType();
this.state.inType = oldInType;
this.state.exprAllowed = this.state.exprAllowed || this.state.noAnonFunctionType;
return type;
}
flowParseTypeOrImplicitInstantiation() {
if (this.state.type === _types.types.name && this.state.value === "_") {
const startPos = this.state.start;
const startLoc = this.state.startLoc;
const node = this.parseIdentifier();
return this.flowParseGenericType(startPos, startLoc, node);
} else {
return this.flowParseType();
}
}
flowParseTypeAnnotation() {
const node = this.startNode();
node.typeAnnotation = this.flowParseTypeInitialiser();
return this.finishNode(node, "TypeAnnotation");
}
flowParseTypeAnnotatableIdentifier(allowPrimitiveOverride) {
const ident = allowPrimitiveOverride ? this.parseIdentifier() : this.flowParseRestrictedIdentifier();
if (this.match(_types.types.colon)) {
ident.typeAnnotation = this.flowParseTypeAnnotation();
this.resetEndLocation(ident);
}
return ident;
}
typeCastToParameter(node) {
node.expression.typeAnnotation = node.typeAnnotation;
this.resetEndLocation(node.expression, node.typeAnnotation.end, node.typeAnnotation.loc.end);
return node.expression;
}
flowParseVariance() {
let variance = null;
if (this.match(_types.types.plusMin)) {
variance = this.startNode();
if (this.state.value === "+") {
variance.kind = "plus";
} else {
variance.kind = "minus";
}
this.next();
this.finishNode(variance, "Variance");
}
return variance;
}
parseFunctionBody(node, allowExpressionBody, isMethod = false) {
if (allowExpressionBody) {
return this.forwardNoArrowParamsConversionAt(node, () => super.parseFunctionBody(node, true, isMethod));
}
return super.parseFunctionBody(node, false, isMethod);
}
parseFunctionBodyAndFinish(node, type, isMethod = false) {
if (this.match(_types.types.colon)) {
const typeNode = this.startNode();
[typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
node.returnType = typeNode.typeAnnotation ? this.finishNode(typeNode, "TypeAnnotation") : null;
}
super.parseFunctionBodyAndFinish(node, type, isMethod);
}
parseStatement(context, topLevel) {
if (this.state.strict && this.match(_types.types.name) && this.state.value === "interface") {
const node = this.startNode();
this.next();
return this.flowParseInterface(node);
} else if (this.shouldParseEnums() && this.isContextual("enum")) {
const node = this.startNode();
this.next();
return this.flowParseEnumDeclaration(node);
} else {
const stmt = super.parseStatement(context, topLevel);
if (this.flowPragma === undefined && !this.isValidDirective(stmt)) {
this.flowPragma = null;
}
return stmt;
}
}
parseExpressionStatement(node, expr) {
if (expr.type === "Identifier") {
if (expr.name === "declare") {
if (this.match(_types.types._class) || this.match(_types.types.name) || this.match(_types.types._function) || this.match(_types.types._var) || this.match(_types.types._export)) {
return this.flowParseDeclare(node);
}
} else if (this.match(_types.types.name)) {
if (expr.name === "interface") {
return this.flowParseInterface(node);
} else if (expr.name === "type") {
return this.flowParseTypeAlias(node);
} else if (expr.name === "opaque") {
return this.flowParseOpaqueType(node, false);
}
}
}
return super.parseExpressionStatement(node, expr);
}
shouldParseExportDeclaration() {
return this.isContextual("type") || this.isContextual("interface") || this.isContextual("opaque") || this.shouldParseEnums() && this.isContextual("enum") || super.shouldParseExportDeclaration();
}
isExportDefaultSpecifier() {
if (this.match(_types.types.name) && (this.state.value === "type" || this.state.value === "interface" || this.state.value === "opaque" || this.shouldParseEnums() && this.state.value === "enum")) {
return false;
}
return super.isExportDefaultSpecifier();
}
parseExportDefaultExpression() {
if (this.shouldParseEnums() && this.isContextual("enum")) {
const node = this.startNode();
this.next();
return this.flowParseEnumDeclaration(node);
}
return super.parseExportDefaultExpression();
}
parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos) {
if (!this.match(_types.types.question)) return expr;
if (refNeedsArrowPos) {
const result = this.tryParse(() => super.parseConditional(expr, noIn, startPos, startLoc));
if (!result.node) {
refNeedsArrowPos.start = result.error.pos || this.state.start;
return expr;
}
if (result.error) this.state = result.failState;
return result.node;
}
this.expect(_types.types.question);
const state = this.state.clone();
const originalNoArrowAt = this.state.noArrowAt;
const node = this.startNodeAt(startPos, startLoc);
let {
consequent,
failed
} = this.tryParseConditionalConsequent();
let [valid, invalid] = this.getArrowLikeExpressions(consequent);
if (failed || invalid.length > 0) {
const noArrowAt = [...originalNoArrowAt];
if (invalid.length > 0) {
this.state = state;
this.state.noArrowAt = noArrowAt;
for (let i = 0; i < invalid.length; i++) {
noArrowAt.push(invalid[i].start);
}
({
consequent,
failed
} = this.tryParseConditionalConsequent());
[valid, invalid] = this.getArrowLikeExpressions(consequent);
}
if (failed && valid.length > 1) {
this.raise(state.start, "Ambiguous expression: wrap the arrow functions in parentheses to disambiguate.");
}
if (failed && valid.length === 1) {
this.state = state;
this.state.noArrowAt = noArrowAt.concat(valid[0].start);
({
consequent,
failed
} = this.tryParseConditionalConsequent());
}
}
this.getArrowLikeExpressions(consequent, true);
this.state.noArrowAt = originalNoArrowAt;
this.expect(_types.types.colon);
node.test = expr;
node.consequent = consequent;
node.alternate = this.forwardNoArrowParamsConversionAt(node, () => this.parseMaybeAssign(noIn, undefined, undefined, undefined));
return this.finishNode(node, "ConditionalExpression");
}
tryParseConditionalConsequent() {
this.state.noArrowParamsConversionAt.push(this.state.start);
const consequent = this.parseMaybeAssign();
const failed = !this.match(_types.types.colon);
this.state.noArrowParamsConversionAt.pop();
return {
consequent,
failed
};
}
getArrowLikeExpressions(node, disallowInvalid) {
const stack = [node];
const arrows = [];
while (stack.length !== 0) {
const node = stack.pop();
if (node.type === "ArrowFunctionExpression") {
if (node.typeParameters || !node.returnType) {
this.finishArrowValidation(node);
} else {
arrows.push(node);
}
stack.push(node.body);
} else if (node.type === "ConditionalExpression") {
stack.push(node.consequent);
stack.push(node.alternate);
}
}
if (disallowInvalid) {
arrows.forEach(node => this.finishArrowValidation(node));
return [arrows, []];
}
return partition(arrows, node => node.params.every(param => this.isAssignable(param, true)));
}
finishArrowValidation(node) {
var _node$extra;
this.toAssignableList(node.params, true, "arrow function parameters", (_node$extra = node.extra) == null ? void 0 : _node$extra.trailingComma);
this.scope.enter((0, _scopeflags.functionFlags)(false, false) | _scopeflags.SCOPE_ARROW);
super.checkParams(node, false, true);
this.scope.exit();
}
forwardNoArrowParamsConversionAt(node, parse) {
let result;
if (this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) {
this.state.noArrowParamsConversionAt.push(this.state.start);
result = parse();
this.state.noArrowParamsConversionAt.pop();
} else {
result = parse();
}
return result;
}
parseParenItem(node, startPos, startLoc) {
node = super.parseParenItem(node, startPos, startLoc);
if (this.eat(_types.types.question)) {
node.optional = true;
this.resetEndLocation(node);
}
if (this.match(_types.types.colon)) {
const typeCastNode = this.startNodeAt(startPos, startLoc);
typeCastNode.expression = node;
typeCastNode.typeAnnotation = this.flowParseTypeAnnotation();
return this.finishNode(typeCastNode, "TypeCastExpression");
}
return node;
}
assertModuleNodeAllowed(node) {
if (node.type === "ImportDeclaration" && (node.importKind === "type" || node.importKind === "typeof") || node.type === "ExportNamedDeclaration" && node.exportKind === "type" || node.type === "ExportAllDeclaration" && node.exportKind === "type") {
return;
}
super.assertModuleNodeAllowed(node);
}
parseExport(node) {
const decl = super.parseExport(node);
if (decl.type === "ExportNamedDeclaration" || decl.type === "ExportAllDeclaration") {
decl.exportKind = decl.exportKind || "value";
}
return decl;
}
parseExportDeclaration(node) {
if (this.isContextual("type")) {
node.exportKind = "type";
const declarationNode = this.startNode();
this.next();
if (this.match(_types.types.braceL)) {
node.specifiers = this.parseExportSpecifiers();
this.parseExportFrom(node);
return null;
} else {
return this.flowParseTypeAlias(declarationNode);
}
} else if (this.isContextual("opaque")) {
node.exportKind = "type";
const declarationNode = this.startNode();
this.next();
return this.flowParseOpaqueType(declarationNode, false);
} else if (this.isContextual("interface")) {
node.exportKind = "type";
const declarationNode = this.startNode();
this.next();
return this.flowParseInterface(declarationNode);
} else if (this.shouldParseEnums() && this.isContextual("enum")) {
node.exportKind = "value";
const declarationNode = this.startNode();
this.next();
return this.flowParseEnumDeclaration(declarationNode);
} else {
return super.parseExportDeclaration(node);
}
}
eatExportStar(node) {
if (super.eatExportStar(...arguments)) return true;
if (this.isContextual("type") && this.lookahead().type === _types.types.star) {
node.exportKind = "type";
this.next();
this.next();
return true;
}
return false;
}
maybeParseExportNamespaceSpecifier(node) {
const pos = this.state.start;
const hasNamespace = super.maybeParseExportNamespaceSpecifier(node);
if (hasNamespace && node.exportKind === "type") {
this.unexpected(pos);
}
return hasNamespace;
}
parseClassId(node, isStatement, optionalId) {
super.parseClassId(node, isStatement, optionalId);
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterDeclaration();
}
}
getTokenFromCode(code) {
const next = this.input.charCodeAt(this.state.pos + 1);
if (code === 123 && next === 124) {
return this.finishOp(_types.types.braceBarL, 2);
} else if (this.state.inType && (code === 62 || code === 60)) {
return this.finishOp(_types.types.relational, 1);
} else if ((0, _identifier.isIteratorStart)(code, next)) {
this.state.isIterator = true;
return super.readWord();
} else {
return super.getTokenFromCode(code);
}
}
isAssignable(node, isBinding) {
switch (node.type) {
case "Identifier":
case "ObjectPattern":
case "ArrayPattern":
case "AssignmentPattern":
return true;
case "ObjectExpression":
{
const last = node.properties.length - 1;
return node.properties.every((prop, i) => {
return prop.type !== "ObjectMethod" && (i === last || prop.type === "SpreadElement") && this.isAssignable(prop);
});
}
case "ObjectProperty":
return this.isAssignable(node.value);
case "SpreadElement":
return this.isAssignable(node.argument);
case "ArrayExpression":
return node.elements.every(element => this.isAssignable(element));
case "AssignmentExpression":
return node.operator === "=";
case "ParenthesizedExpression":
case "TypeCastExpression":
return this.isAssignable(node.expression);
case "MemberExpression":
case "OptionalMemberExpression":
return !isBinding;
default:
return false;
}
}
toAssignable(node, isBinding, contextDescription) {
if (node.type === "TypeCastExpression") {
return super.toAssignable(this.typeCastToParameter(node), isBinding, contextDescription);
} else {
return super.toAssignable(node, isBinding, contextDescription);
}
}
toAssignableList(exprList, isBinding, contextDescription, trailingCommaPos) {
for (let i = 0; i < exprList.length; i++) {
const expr = exprList[i];
if (expr && expr.type === "TypeCastExpression") {
exprList[i] = this.typeCastToParameter(expr);
}
}
return super.toAssignableList(exprList, isBinding, contextDescription, trailingCommaPos);
}
toReferencedList(exprList, isParenthesizedExpr) {
for (let i = 0; i < exprList.length; i++) {
const expr = exprList[i];
if (expr && expr.type === "TypeCastExpression" && (!expr.extra || !expr.extra.parenthesized) && (exprList.length > 1 || !isParenthesizedExpr)) {
this.raise(expr.typeAnnotation.start, "The type cast expression is expected to be wrapped with parenthesis");
}
}
return exprList;
}
checkLVal(expr, bindingType = _scopeflags.BIND_NONE, checkClashes, contextDescription) {
if (expr.type !== "TypeCastExpression") {
return super.checkLVal(expr, bindingType, checkClashes, contextDescription);
}
}
parseClassProperty(node) {
if (this.match(_types.types.colon)) {
node.typeAnnotation = this.flowParseTypeAnnotation();
}
return super.parseClassProperty(node);
}
parseClassPrivateProperty(node) {
if (this.match(_types.types.colon)) {
node.typeAnnotation = this.flowParseTypeAnnotation();
}
return super.parseClassPrivateProperty(node);
}
isClassMethod() {
return this.isRelational("<") || super.isClassMethod();
}
isClassProperty() {
return this.match(_types.types.colon) || super.isClassProperty();
}
isNonstaticConstructor(method) {
return !this.match(_types.types.colon) && super.isNonstaticConstructor(method);
}
pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) {
if (method.variance) {
this.unexpected(method.variance.start);
}
delete method.variance;
if (this.isRelational("<")) {
method.typeParameters = this.flowParseTypeParameterDeclaration();
}
super.pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper);
}
pushClassPrivateMethod(classBody, method, isGenerator, isAsync) {
if (method.variance) {
this.unexpected(method.variance.start);
}
delete method.variance;
if (this.isRelational("<")) {
method.typeParameters = this.flowParseTypeParameterDeclaration();
}
super.pushClassPrivateMethod(classBody, method, isGenerator, isAsync);
}
parseClassSuper(node) {
super.parseClassSuper(node);
if (node.superClass && this.isRelational("<")) {
node.superTypeParameters = this.flowParseTypeParameterInstantiation();
}
if (this.isContextual("implements")) {
this.next();
const implemented = node.implements = [];
do {
const node = this.startNode();
node.id = this.flowParseRestrictedIdentifier(true);
if (this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterInstantiation();
} else {
node.typeParameters = null;
}
implemented.push(this.finishNode(node, "ClassImplements"));
} while (this.eat(_types.types.comma));
}
}
parsePropertyName(node, isPrivateNameAllowed) {
const variance = this.flowParseVariance();
const key = super.parsePropertyName(node, isPrivateNameAllowed);
node.variance = variance;
return key;
}
parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refShorthandDefaultPos, containsEsc) {
if (prop.variance) {
this.unexpected(prop.variance.start);
}
delete prop.variance;
let typeParameters;
if (this.isRelational("<")) {
typeParameters = this.flowParseTypeParameterDeclaration();
if (!this.match(_types.types.parenL)) this.unexpected();
}
super.parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refShorthandDefaultPos, containsEsc);
if (typeParameters) {
(prop.value || prop).typeParameters = typeParameters;
}
}
parseAssignableListItemTypes(param) {
if (this.eat(_types.types.question)) {
if (param.type !== "Identifier") {
this.raise(param.start, "A binding pattern parameter cannot be optional in an implementation signature.");
}
param.optional = true;
}
if (this.match(_types.types.colon)) {
param.typeAnnotation = this.flowParseTypeAnnotation();
}
this.resetEndLocation(param);
return param;
}
parseMaybeDefault(startPos, startLoc, left) {
const node = super.parseMaybeDefault(startPos, startLoc, left);
if (node.type === "AssignmentPattern" && node.typeAnnotation && node.right.start < node.typeAnnotation.start) {
this.raise(node.typeAnnotation.start, "Type annotations must come before default assignments, " + "e.g. instead of `age = 25: number` use `age: number = 25`");
}
return node;
}
shouldParseDefaultImport(node) {
if (!hasTypeImportKind(node)) {
return super.shouldParseDefaultImport(node);
}
return isMaybeDefaultImport(this.state);
}
parseImportSpecifierLocal(node, specifier, type, contextDescription) {
specifier.local = hasTypeImportKind(node) ? this.flowParseRestrictedIdentifier(true, true) : this.parseIdentifier();
this.checkLVal(specifier.local, _scopeflags.BIND_LEXICAL, undefined, contextDescription);
node.specifiers.push(this.finishNode(specifier, type));
}
maybeParseDefaultImportSpecifier(node) {
node.importKind = "value";
let kind = null;
if (this.match(_types.types._typeof)) {
kind = "typeof";
} else if (this.isContextual("type")) {
kind = "type";
}
if (kind) {
const lh = this.lookahead();
if (kind === "type" && lh.type === _types.types.star) {
this.unexpected(lh.start);
}
if (isMaybeDefaultImport(lh) || lh.type === _types.types.braceL || lh.type === _types.types.star) {
this.next();
node.importKind = kind;
}
}
return super.maybeParseDefaultImportSpecifier(node);
}
parseImportSpecifier(node) {
const specifier = this.startNode();
const firstIdentLoc = this.state.start;
const firstIdent = this.parseIdentifier(true);
let specifierTypeKind = null;
if (firstIdent.name === "type") {
specifierTypeKind = "type";
} else if (firstIdent.name === "typeof") {
specifierTypeKind = "typeof";
}
let isBinding = false;
if (this.isContextual("as") && !this.isLookaheadContextual("as")) {
const as_ident = this.parseIdentifier(true);
if (specifierTypeKind !== null && !this.match(_types.types.name) && !this.state.type.keyword) {
specifier.imported = as_ident;
specifier.importKind = specifierTypeKind;
specifier.local = as_ident.__clone();
} else {
specifier.imported = firstIdent;
specifier.importKind = null;
specifier.local = this.parseIdentifier();
}
} else if (specifierTypeKind !== null && (this.match(_types.types.name) || this.state.type.keyword)) {
specifier.imported = this.parseIdentifier(true);
specifier.importKind = specifierTypeKind;
if (this.eatContextual("as")) {
specifier.local = this.parseIdentifier();
} else {
isBinding = true;
specifier.local = specifier.imported.__clone();
}
} else {
isBinding = true;
specifier.imported = firstIdent;
specifier.importKind = null;
specifier.local = specifier.imported.__clone();
}
const nodeIsTypeImport = hasTypeImportKind(node);
const specifierIsTypeImport = hasTypeImportKind(specifier);
if (nodeIsTypeImport && specifierIsTypeImport) {
this.raise(firstIdentLoc, "The `type` and `typeof` keywords on named imports can only be used on regular " + "`import` statements. It cannot be used with `import type` or `import typeof` statements");
}
if (nodeIsTypeImport || specifierIsTypeImport) {
this.checkReservedType(specifier.local.name, specifier.local.start, true);
}
if (isBinding && !nodeIsTypeImport && !specifierIsTypeImport) {
this.checkReservedWord(specifier.local.name, specifier.start, true, true);
}
this.checkLVal(specifier.local, _scopeflags.BIND_LEXICAL, undefined, "import specifier");
node.specifiers.push(this.finishNode(specifier, "ImportSpecifier"));
}
parseFunctionParams(node, allowModifiers) {
const kind = node.kind;
if (kind !== "get" && kind !== "set" && this.isRelational("<")) {
node.typeParameters = this.flowParseTypeParameterDeclaration();
}
super.parseFunctionParams(node, allowModifiers);
}
parseVarId(decl, kind) {
super.parseVarId(decl, kind);
if (this.match(_types.types.colon)) {
decl.id.typeAnnotation = this.flowParseTypeAnnotation();
this.resetEndLocation(decl.id);
}
}
parseAsyncArrowFromCallExpression(node, call) {
if (this.match(_types.types.colon)) {
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
this.state.noAnonFunctionType = true;
node.returnType = this.flowParseTypeAnnotation();
this.state.noAnonFunctionType = oldNoAnonFunctionType;
}
return super.parseAsyncArrowFromCallExpression(node, call);
}
shouldParseAsyncArrow() {
return this.match(_types.types.colon) || super.shouldParseAsyncArrow();
}
parseMaybeAssign(noIn, refShorthandDefaultPos, afterLeftParse, refNeedsArrowPos) {
let state = null;
let jsx;
if (this.hasPlugin("jsx") && (this.match(_types.types.jsxTagStart) || this.isRelational("<"))) {
state = this.state.clone();
jsx = this.tryParse(() => super.parseMaybeAssign(noIn, refShorthandDefaultPos, afterLeftParse, refNeedsArrowPos), state);
if (!jsx.error) return jsx.node;
const {
context
} = this.state;
if (context[context.length - 1] === _context.types.j_oTag) {
context.length -= 2;
} else if (context[context.length - 1] === _context.types.j_expr) {
context.length -= 1;
}
}
if (jsx && jsx.error || this.isRelational("<")) {
state = state || this.state.clone();
let typeParameters;
const arrow = this.tryParse(() => {
typeParameters = this.flowParseTypeParameterDeclaration();
const arrowExpression = this.forwardNoArrowParamsConversionAt(typeParameters, () => super.parseMaybeAssign(noIn, refShorthandDefaultPos, afterLeftParse, refNeedsArrowPos));
arrowExpression.typeParameters = typeParameters;
this.resetStartLocationFromNode(arrowExpression, typeParameters);
return arrowExpression;
}, state);
const arrowExpression = arrow.node && arrow.node.type === "ArrowFunctionExpression" ? arrow.node : null;
if (!arrow.error && arrowExpression) return arrowExpression;
if (jsx && jsx.node) {
this.state = jsx.failState;
return jsx.node;
}
if (arrowExpression) {
this.state = arrow.failState;
return arrowExpression;
}
if (jsx && jsx.thrown) throw jsx.error;
if (arrow.thrown) throw arrow.error;
throw this.raise(typeParameters.start, "Expected an arrow function after this type parameter declaration");
}
return super.parseMaybeAssign(noIn, refShorthandDefaultPos, afterLeftParse, refNeedsArrowPos);
}
parseArrow(node) {
if (this.match(_types.types.colon)) {
const result = this.tryParse(() => {
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
this.state.noAnonFunctionType = true;
const typeNode = this.startNode();
[typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
this.state.noAnonFunctionType = oldNoAnonFunctionType;
if (this.canInsertSemicolon()) this.unexpected();
if (!this.match(_types.types.arrow)) this.unexpected();
return typeNode;
});
if (result.thrown) return null;
if (result.error) this.state = result.failState;
node.returnType = result.node.typeAnnotation ? this.finishNode(result.node, "TypeAnnotation") : null;
}
return super.parseArrow(node);
}
shouldParseArrow() {
return this.match(_types.types.colon) || super.shouldParseArrow();
}
setArrowFunctionParameters(node, params) {
if (this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) {
node.params = params;
} else {
super.setArrowFunctionParameters(node, params);
}
}
checkParams(node, allowDuplicates, isArrowFunction) {
if (isArrowFunction && this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) {
return;
}
return super.checkParams(...arguments);
}
parseParenAndDistinguishExpression(canBeArrow) {
return super.parseParenAndDistinguishExpression(canBeArrow && this.state.noArrowAt.indexOf(this.state.start) === -1);
}
parseSubscripts(base, startPos, startLoc, noCalls) {
if (base.type === "Identifier" && base.name === "async" && this.state.noArrowAt.indexOf(startPos) !== -1) {
this.next();
const node = this.startNodeAt(startPos, startLoc);
node.callee = base;
node.arguments = this.parseCallExpressionArguments(_types.types.parenR, false);
base = this.finishNode(node, "CallExpression");
} else if (base.type === "Identifier" && base.name === "async" && this.isRelational("<")) {
const state = this.state.clone();
const arrow = this.tryParse(abort => this.parseAsyncArrowWithTypeParameters(startPos, startLoc) || abort(), state);
if (!arrow.error && !arrow.aborted) return arrow.node;
const result = this.tryParse(() => super.parseSubscripts(base, startPos, startLoc, noCalls), state);
if (result.node && !result.error) return result.node;
if (arrow.node) {
this.state = arrow.failState;
return arrow.node;
}
if (result.node) {
this.state = result.failState;
return result.node;
}
throw arrow.error || result.error;
}
return super.parseSubscripts(base, startPos, startLoc, noCalls);
}
parseSubscript(base, startPos, startLoc, noCalls, subscriptState) {
if (this.match(_types.types.questionDot) && this.isLookaheadRelational("<")) {
subscriptState.optionalChainMember = true;
if (noCalls) {
subscriptState.stop = true;
return base;
}
this.next();
const node = this.startNodeAt(startPos, startLoc);
node.callee = base;
node.typeArguments = this.flowParseTypeParameterInstantiation();
this.expect(_types.types.parenL);
node.arguments = this.parseCallExpressionArguments(_types.types.parenR, false);
node.optional = true;
return this.finishCallExpression(node, true);
} else if (!noCalls && this.shouldParseTypes() && this.isRelational("<")) {
const node = this.startNodeAt(startPos, startLoc);
node.callee = base;
const result = this.tryParse(() => {
node.typeArguments = this.flowParseTypeParameterInstantiationCallOrNew();
this.expect(_types.types.parenL);
node.arguments = this.parseCallExpressionArguments(_types.types.parenR, false);
if (subscriptState.optionalChainMember) node.optional = false;
return this.finishCallExpression(node, subscriptState.optionalChainMember);
});
if (result.node) {
if (result.error) this.state = result.failState;
return result.node;
}
}
return super.parseSubscript(base, startPos, startLoc, noCalls, subscriptState);
}
parseNewArguments(node) {
let targs = null;
if (this.shouldParseTypes() && this.isRelational("<")) {
targs = this.tryParse(() => this.flowParseTypeParameterInstantiationCallOrNew()).node;
}
node.typeArguments = targs;
super.parseNewArguments(node);
}
parseAsyncArrowWithTypeParameters(startPos, startLoc) {
const node = this.startNodeAt(startPos, startLoc);
this.parseFunctionParams(node);
if (!this.parseArrow(node)) return;
return this.parseArrowExpression(node, undefined, true);
}
readToken_mult_modulo(code) {
const next = this.input.charCodeAt(this.state.pos + 1);
if (code === 42 && next === 47 && this.state.hasFlowComment) {
this.state.hasFlowComment = false;
this.state.pos += 2;
this.nextToken();
return;
}
super.readToken_mult_modulo(code);
}
readToken_pipe_amp(code) {
const next = this.input.charCodeAt(this.state.pos + 1);
if (code === 124 && next === 125) {
this.finishOp(_types.types.braceBarR, 2);
return;
}
super.readToken_pipe_amp(code);
}
parseTopLevel(file, program) {
const fileNode = super.parseTopLevel(file, program);
if (this.state.hasFlowComment) {
this.raise(this.state.pos, "Unterminated flow-comment");
}
return fileNode;
}
skipBlockComment() {
if (this.hasPlugin("flowComments") && this.skipFlowComment()) {
if (this.state.hasFlowComment) {
this.unexpected(null, "Cannot have a flow comment inside another flow comment");
}
this.hasFlowCommentCompletion();
this.state.pos += this.skipFlowComment();
this.state.hasFlowComment = true;
return;
}
if (this.state.hasFlowComment) {
const end = this.input.indexOf("*-/", this.state.pos += 2);
if (end === -1) {
throw this.raise(this.state.pos - 2, "Unterminated comment");
}
this.state.pos = end + 3;
return;
}
super.skipBlockComment();
}
skipFlowComment() {
const {
pos
} = this.state;
let shiftToFirstNonWhiteSpace = 2;
while ([32, 9].includes(this.input.charCodeAt(pos + shiftToFirstNonWhiteSpace))) {
shiftToFirstNonWhiteSpace++;
}
const ch2 = this.input.charCodeAt(shiftToFirstNonWhiteSpace + pos);
const ch3 = this.input.charCodeAt(shiftToFirstNonWhiteSpace + pos + 1);
if (ch2 === 58 && ch3 === 58) {
return shiftToFirstNonWhiteSpace + 2;
}
if (this.input.slice(shiftToFirstNonWhiteSpace + pos, shiftToFirstNonWhiteSpace + pos + 12) === "flow-include") {
return shiftToFirstNonWhiteSpace + 12;
}
if (ch2 === 58 && ch3 !== 58) {
return shiftToFirstNonWhiteSpace;
}
return false;
}
hasFlowCommentCompletion() {
const end = this.input.indexOf("*/", this.state.pos);
if (end === -1) {
throw this.raise(this.state.pos, "Unterminated comment");
}
}
flowEnumErrorBooleanMemberNotInitialized(pos, {
enumName,
memberName
}) {
this.raise(pos, `Boolean enum members need to be initialized. Use either \`${memberName} = true,\` ` + `or \`${memberName} = false,\` in enum \`${enumName}\`.`);
}
flowEnumErrorInvalidMemberName(pos, {
enumName,
memberName
}) {
const suggestion = memberName[0].toUpperCase() + memberName.slice(1);
this.raise(pos, `Enum member names cannot start with lowercase 'a' through 'z'. Instead of using ` + `\`${memberName}\`, consider using \`${suggestion}\`, in enum \`${enumName}\`.`);
}
flowEnumErrorDuplicateMemberName(pos, {
enumName,
memberName
}) {
this.raise(pos, `Enum member names need to be unique, but the name \`${memberName}\` has already been used ` + `before in enum \`${enumName}\`.`);
}
flowEnumErrorInconsistentMemberValues(pos, {
enumName
}) {
this.raise(pos, `Enum \`${enumName}\` has inconsistent member initializers. Either use no initializers, or ` + `consistently use literals (either booleans, numbers, or strings) for all member initializers.`);
}
flowEnumErrorInvalidExplicitType(pos, {
enumName,
suppliedType
}) {
const suggestion = `Use one of \`boolean\`, \`number\`, \`string\`, or \`symbol\` in ` + `enum \`${enumName}\`.`;
const message = suppliedType === null ? `Supplied enum type is not valid. ${suggestion}` : `Enum type \`${suppliedType}\` is not valid. ${suggestion}`;
return this.raise(pos, message);
}
flowEnumErrorInvalidMemberInitializer(pos, {
enumName,
explicitType,
memberName
}) {
let message = null;
switch (explicitType) {
case "boolean":
case "number":
case "string":
message = `Enum \`${enumName}\` has type \`${explicitType}\`, so the initializer of ` + `\`${memberName}\` needs to be a ${explicitType} literal.`;
break;
case "symbol":
message = `Symbol enum members cannot be initialized. Use \`${memberName},\` in ` + `enum \`${enumName}\`.`;
break;
default:
message = `The enum member initializer for \`${memberName}\` needs to be a literal (either ` + `a boolean, number, or string) in enum \`${enumName}\`.`;
}
return this.raise(pos, message);
}
flowEnumErrorNumberMemberNotInitialized(pos, {
enumName,
memberName
}) {
this.raise(pos, `Number enum members need to be initialized, e.g. \`${memberName} = 1\` in enum \`${enumName}\`.`);
}
flowEnumErrorStringMemberInconsistentlyInitailized(pos, {
enumName
}) {
this.raise(pos, `String enum members need to consistently either all use initializers, or use no initializers, ` + `in enum \`${enumName}\`.`);
}
flowEnumMemberInit() {
const startPos = this.state.start;
const endOfInit = () => this.match(_types.types.comma) || this.match(_types.types.braceR);
switch (this.state.type) {
case _types.types.num:
{
const literal = this.parseLiteral(this.state.value, "NumericLiteral");
if (endOfInit()) {
return {
type: "number",
pos: literal.start,
value: literal
};
}
return {
type: "invalid",
pos: startPos
};
}
case _types.types.string:
{
const literal = this.parseLiteral(this.state.value, "StringLiteral");
if (endOfInit()) {
return {
type: "string",
pos: literal.start,
value: literal
};
}
return {
type: "invalid",
pos: startPos
};
}
case _types.types._true:
case _types.types._false:
{
const literal = this.parseBooleanLiteral();
if (endOfInit()) {
return {
type: "boolean",
pos: literal.start,
value: literal
};
}
return {
type: "invalid",
pos: startPos
};
}
default:
return {
type: "invalid",
pos: startPos
};
}
}
flowEnumMemberRaw() {
const pos = this.state.start;
const id = this.parseIdentifier(true);
const init = this.eat(_types.types.eq) ? this.flowEnumMemberInit() : {
type: "none",
pos
};
return {
id,
init
};
}
flowEnumCheckExplicitTypeMismatch(pos, context, expectedType) {
const {
explicitType
} = context;
if (explicitType === null) {
return;
}
if (explicitType !== expectedType) {
this.flowEnumErrorInvalidMemberInitializer(pos, context);
}
}
flowEnumMembers({
enumName,
explicitType
}) {
const seenNames = new Set();
const members = {
booleanMembers: [],
numberMembers: [],
stringMembers: [],
defaultedMembers: []
};
while (!this.match(_types.types.braceR)) {
const memberNode = this.startNode();
const {
id,
init
} = this.flowEnumMemberRaw();
const memberName = id.name;
if (memberName === "") {
continue;
}
if (/^[a-z]/.test(memberName)) {
this.flowEnumErrorInvalidMemberName(id.start, {
enumName,
memberName
});
}
if (seenNames.has(memberName)) {
this.flowEnumErrorDuplicateMemberName(id.start, {
enumName,
memberName
});
}
seenNames.add(memberName);
const context = {
enumName,
explicitType,
memberName
};
memberNode.id = id;
switch (init.type) {
case "boolean":
{
this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "boolean");
memberNode.init = init.value;
members.booleanMembers.push(this.finishNode(memberNode, "EnumBooleanMember"));
break;
}
case "number":
{
this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "number");
memberNode.init = init.value;
members.numberMembers.push(this.finishNode(memberNode, "EnumNumberMember"));
break;
}
case "string":
{
this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "string");
memberNode.init = init.value;
members.stringMembers.push(this.finishNode(memberNode, "EnumStringMember"));
break;
}
case "invalid":
{
throw this.flowEnumErrorInvalidMemberInitializer(init.pos, context);
}
case "none":
{
switch (explicitType) {
case "boolean":
this.flowEnumErrorBooleanMemberNotInitialized(init.pos, context);
break;
case "number":
this.flowEnumErrorNumberMemberNotInitialized(init.pos, context);
break;
default:
members.defaultedMembers.push(this.finishNode(memberNode, "EnumDefaultedMember"));
}
}
}
if (!this.match(_types.types.braceR)) {
this.expect(_types.types.comma);
}
}
return members;
}
flowEnumStringMembers(initializedMembers, defaultedMembers, {
enumName
}) {
if (initializedMembers.length === 0) {
return defaultedMembers;
} else if (defaultedMembers.length === 0) {
return initializedMembers;
} else if (defaultedMembers.length > initializedMembers.length) {
for (let _i = 0; _i < initializedMembers.length; _i++) {
const member = initializedMembers[_i];
this.flowEnumErrorStringMemberInconsistentlyInitailized(member.start, {
enumName
});
}
return defaultedMembers;
} else {
for (let _i2 = 0; _i2 < defaultedMembers.length; _i2++) {
const member = defaultedMembers[_i2];
this.flowEnumErrorStringMemberInconsistentlyInitailized(member.start, {
enumName
});
}
return initializedMembers;
}
}
flowEnumParseExplicitType({
enumName
}) {
if (this.eatContextual("of")) {
if (!this.match(_types.types.name)) {
throw this.flowEnumErrorInvalidExplicitType(this.state.start, {
enumName,
suppliedType: null
});
}
const {
value
} = this.state;
this.next();
if (value !== "boolean" && value !== "number" && value !== "string" && value !== "symbol") {
this.flowEnumErrorInvalidExplicitType(this.state.start, {
enumName,
suppliedType: value
});
}
return value;
}
return null;
}
flowEnumBody(node, {
enumName,
nameLoc
}) {
const explicitType = this.flowEnumParseExplicitType({
enumName
});
this.expect(_types.types.braceL);
const members = this.flowEnumMembers({
enumName,
explicitType
});
switch (explicitType) {
case "boolean":
node.explicitType = true;
node.members = members.booleanMembers;
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumBooleanBody");
case "number":
node.explicitType = true;
node.members = members.numberMembers;
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumNumberBody");
case "string":
node.explicitType = true;
node.members = this.flowEnumStringMembers(members.stringMembers, members.defaultedMembers, {
enumName
});
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumStringBody");
case "symbol":
node.members = members.defaultedMembers;
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumSymbolBody");
default:
{
const empty = () => {
node.members = [];
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumStringBody");
};
node.explicitType = false;
const boolsLen = members.booleanMembers.length;
const numsLen = members.numberMembers.length;
const strsLen = members.stringMembers.length;
const defaultedLen = members.defaultedMembers.length;
if (!boolsLen && !numsLen && !strsLen && !defaultedLen) {
return empty();
} else if (!boolsLen && !numsLen) {
node.members = this.flowEnumStringMembers(members.stringMembers, members.defaultedMembers, {
enumName
});
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumStringBody");
} else if (!numsLen && !strsLen && boolsLen >= defaultedLen) {
for (let _i3 = 0, _members$defaultedMem = members.defaultedMembers; _i3 < _members$defaultedMem.length; _i3++) {
const member = _members$defaultedMem[_i3];
this.flowEnumErrorBooleanMemberNotInitialized(member.start, {
enumName,
memberName: member.id.name
});
}
node.members = members.booleanMembers;
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumBooleanBody");
} else if (!boolsLen && !strsLen && numsLen >= defaultedLen) {
for (let _i4 = 0, _members$defaultedMem2 = members.defaultedMembers; _i4 < _members$defaultedMem2.length; _i4++) {
const member = _members$defaultedMem2[_i4];
this.flowEnumErrorNumberMemberNotInitialized(member.start, {
enumName,
memberName: member.id.name
});
}
node.members = members.numberMembers;
this.expect(_types.types.braceR);
return this.finishNode(node, "EnumNumberBody");
} else {
this.flowEnumErrorInconsistentMemberValues(nameLoc, {
enumName
});
return empty();
}
}
}
}
flowParseEnumDeclaration(node) {
const id = this.parseIdentifier();
node.id = id;
node.body = this.flowEnumBody(this.startNode(), {
enumName: id.name,
nameLoc: id.start
});
return this.finishNode(node, "EnumDeclaration");
}
};
exports.default = _default;
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