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index.js
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Tue, Jul 8, 15:37

index.js
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = exports.SHOULD_SKIP = exports.SHOULD_STOP = exports.REMOVED = void 0;
var virtualTypes = _interopRequireWildcard(require("./lib/virtual-types"));
var _debug = _interopRequireDefault(require("debug"));
var _index = _interopRequireDefault(require("../index"));
var _scope = _interopRequireDefault(require("../scope"));
var t = _interopRequireWildcard(require("@babel/types"));
var _cache = require("../cache");
var _generator = _interopRequireDefault(require("@babel/generator"));
var NodePath_ancestry = _interopRequireWildcard(require("./ancestry"));
var NodePath_inference = _interopRequireWildcard(require("./inference"));
var NodePath_replacement = _interopRequireWildcard(require("./replacement"));
var NodePath_evaluation = _interopRequireWildcard(require("./evaluation"));
var NodePath_conversion = _interopRequireWildcard(require("./conversion"));
var NodePath_introspection = _interopRequireWildcard(require("./introspection"));
var NodePath_context = _interopRequireWildcard(require("./context"));
var NodePath_removal = _interopRequireWildcard(require("./removal"));
var NodePath_modification = _interopRequireWildcard(require("./modification"));
var NodePath_family = _interopRequireWildcard(require("./family"));
var NodePath_comments = _interopRequireWildcard(require("./comments"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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 debug = (0, _debug.default)("babel");
const REMOVED = 1 << 0;
exports.REMOVED = REMOVED;
const SHOULD_STOP = 1 << 1;
exports.SHOULD_STOP = SHOULD_STOP;
const SHOULD_SKIP = 1 << 2;
exports.SHOULD_SKIP = SHOULD_SKIP;
class NodePath {
constructor(hub, parent) {
this.contexts = [];
this.state = null;
this.opts = null;
this._traverseFlags = 0;
this.skipKeys = null;
this.parentPath = null;
this.container = null;
this.listKey = null;
this.key = null;
this.node = null;
this.type = null;
this.parent = parent;
this.hub = hub;
this.data = null;
this.context = null;
this.scope = null;
}
static get({
hub,
parentPath,
parent,
container,
listKey,
key
}) {
if (!hub && parentPath) {
hub = parentPath.hub;
}
if (!parent) {
throw new Error("To get a node path the parent needs to exist");
}
const targetNode = container[key];
let paths = _cache.path.get(parent);
if (!paths) {
paths = new Map();
_cache.path.set(parent, paths);
}
let path = paths.get(targetNode);
if (!path) {
path = new NodePath(hub, parent);
if (targetNode) paths.set(targetNode, path);
}
path.setup(parentPath, container, listKey, key);
return path;
}
getScope(scope) {
return this.isScope() ? new _scope.default(this) : scope;
}
setData(key, val) {
if (this.data == null) {
this.data = Object.create(null);
}
return this.data[key] = val;
}
getData(key, def) {
if (this.data == null) {
this.data = Object.create(null);
}
let val = this.data[key];
if (val === undefined && def !== undefined) val = this.data[key] = def;
return val;
}
buildCodeFrameError(msg, Error = SyntaxError) {
return this.hub.buildError(this.node, msg, Error);
}
traverse(visitor, state) {
(0, _index.default)(this.node, visitor, this.scope, state, this);
}
set(key, node) {
t.validate(this.node, key, node);
this.node[key] = node;
}
getPathLocation() {
const parts = [];
let path = this;
do {
let key = path.key;
if (path.inList) key = `${path.listKey}[${key}]`;
parts.unshift(key);
} while (path = path.parentPath);
return parts.join(".");
}
debug(message) {
if (!debug.enabled) return;
debug(`${this.getPathLocation()} ${this.type}: ${message}`);
}
toString() {
return (0, _generator.default)(this.node).code;
}
get inList() {
return !!this.listKey;
}
set inList(inList) {
if (!inList) {
this.listKey = null;
}
}
get parentKey() {
return this.listKey || this.key;
}
get shouldSkip() {
return !!(this._traverseFlags & SHOULD_SKIP);
}
set shouldSkip(v) {
if (v) {
this._traverseFlags |= SHOULD_SKIP;
} else {
this._traverseFlags &= ~SHOULD_SKIP;
}
}
get shouldStop() {
return !!(this._traverseFlags & SHOULD_STOP);
}
set shouldStop(v) {
if (v) {
this._traverseFlags |= SHOULD_STOP;
} else {
this._traverseFlags &= ~SHOULD_STOP;
}
}
get removed() {
return !!(this._traverseFlags & REMOVED);
}
set removed(v) {
if (v) {
this._traverseFlags |= REMOVED;
} else {
this._traverseFlags &= ~REMOVED;
}
}
}
exports.default = NodePath;
Object.assign(NodePath.prototype, NodePath_ancestry, NodePath_inference, NodePath_replacement, NodePath_evaluation, NodePath_conversion, NodePath_introspection, NodePath_context, NodePath_removal, NodePath_modification, NodePath_family, NodePath_comments);
for (const type of t.TYPES) {
const typeKey = `is${type}`;
const fn = t[typeKey];
NodePath.prototype[typeKey] = function (opts) {
return fn(this.node, opts);
};
NodePath.prototype[`assert${type}`] = function (opts) {
if (!fn(this.node, opts)) {
throw new TypeError(`Expected node path of type ${type}`);
}
};
}
for (const type of Object.keys(virtualTypes)) {
if (type[0] === "_") continue;
if (t.TYPES.indexOf(type) < 0) t.TYPES.push(type);
const virtualType = virtualTypes[type];
NodePath.prototype[`is${type}`] = function (opts) {
return virtualType.checkPath(this, opts);
};
}

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