diff options
Diffstat (limited to 'node_modules/@babel/traverse/lib/path/context.js')
| -rw-r--r-- | node_modules/@babel/traverse/lib/path/context.js | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/node_modules/@babel/traverse/lib/path/context.js b/node_modules/@babel/traverse/lib/path/context.js new file mode 100644 index 00000000..72bfac1e --- /dev/null +++ b/node_modules/@babel/traverse/lib/path/context.js @@ -0,0 +1,269 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.call = call; +exports._call = _call; +exports.isBlacklisted = isBlacklisted; +exports.visit = visit; +exports.skip = skip; +exports.skipKey = skipKey; +exports.stop = stop; +exports.setScope = setScope; +exports.setContext = setContext; +exports.resync = resync; +exports._resyncParent = _resyncParent; +exports._resyncKey = _resyncKey; +exports._resyncList = _resyncList; +exports._resyncRemoved = _resyncRemoved; +exports.popContext = popContext; +exports.pushContext = pushContext; +exports.setup = setup; +exports.setKey = setKey; +exports.requeue = requeue; +exports._getQueueContexts = _getQueueContexts; + +var _index = _interopRequireDefault(require("../index")); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +function call(key) { + const opts = this.opts; + this.debug(key); + + if (this.node) { + if (this._call(opts[key])) return true; + } + + if (this.node) { + return this._call(opts[this.node.type] && opts[this.node.type][key]); + } + + return false; +} + +function _call(fns) { + if (!fns) return false; + + for (var _iterator = fns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) { + var _ref; + + if (_isArray) { + if (_i >= _iterator.length) break; + _ref = _iterator[_i++]; + } else { + _i = _iterator.next(); + if (_i.done) break; + _ref = _i.value; + } + + const fn = _ref; + if (!fn) continue; + const node = this.node; + if (!node) return true; + const ret = fn.call(this.state, this, this.state); + + if (ret && typeof ret === "object" && typeof ret.then === "function") { + throw new Error(`You appear to be using a plugin with an async traversal visitor, ` + `which your current version of Babel does not support.` + `If you're using a published plugin, you may need to upgrade ` + `your @babel/core version.`); + } + + if (ret) { + throw new Error(`Unexpected return value from visitor method ${fn}`); + } + + if (this.node !== node) return true; + if (this.shouldStop || this.shouldSkip || this.removed) return true; + } + + return false; +} + +function isBlacklisted() { + const blacklist = this.opts.blacklist; + return blacklist && blacklist.indexOf(this.node.type) > -1; +} + +function visit() { + if (!this.node) { + return false; + } + + if (this.isBlacklisted()) { + return false; + } + + if (this.opts.shouldSkip && this.opts.shouldSkip(this)) { + return false; + } + + if (this.call("enter") || this.shouldSkip) { + this.debug("Skip..."); + return this.shouldStop; + } + + this.debug("Recursing into..."); + + _index.default.node(this.node, this.opts, this.scope, this.state, this, this.skipKeys); + + this.call("exit"); + return this.shouldStop; +} + +function skip() { + this.shouldSkip = true; +} + +function skipKey(key) { + this.skipKeys[key] = true; +} + +function stop() { + this.shouldStop = true; + this.shouldSkip = true; +} + +function setScope() { + if (this.opts && this.opts.noScope) return; + let path = this.parentPath; + let target; + + while (path && !target) { + if (path.opts && path.opts.noScope) return; + target = path.scope; + path = path.parentPath; + } + + this.scope = this.getScope(target); + if (this.scope) this.scope.init(); +} + +function setContext(context) { + this.shouldSkip = false; + this.shouldStop = false; + this.removed = false; + this.skipKeys = {}; + + if (context) { + this.context = context; + this.state = context.state; + this.opts = context.opts; + } + + this.setScope(); + return this; +} + +function resync() { + if (this.removed) return; + + this._resyncParent(); + + this._resyncList(); + + this._resyncKey(); +} + +function _resyncParent() { + if (this.parentPath) { + this.parent = this.parentPath.node; + } +} + +function _resyncKey() { + if (!this.container) return; + if (this.node === this.container[this.key]) return; + + if (Array.isArray(this.container)) { + for (let i = 0; i < this.container.length; i++) { + if (this.container[i] === this.node) { + return this.setKey(i); + } + } + } else { + for (const key in this.container) { + if (this.container[key] === this.node) { + return this.setKey(key); + } + } + } + + this.key = null; +} + +function _resyncList() { + if (!this.parent || !this.inList) return; + const newContainer = this.parent[this.listKey]; + if (this.container === newContainer) return; + this.container = newContainer || null; +} + +function _resyncRemoved() { + if (this.key == null || !this.container || this.container[this.key] !== this.node) { + this._markRemoved(); + } +} + +function popContext() { + this.contexts.pop(); + + if (this.contexts.length > 0) { + this.setContext(this.contexts[this.contexts.length - 1]); + } else { + this.setContext(undefined); + } +} + +function pushContext(context) { + this.contexts.push(context); + this.setContext(context); +} + +function setup(parentPath, container, listKey, key) { + this.inList = !!listKey; + this.listKey = listKey; + this.parentKey = listKey || key; + this.container = container; + this.parentPath = parentPath || this.parentPath; + this.setKey(key); +} + +function setKey(key) { + this.key = key; + this.node = this.container[this.key]; + this.type = this.node && this.node.type; +} + +function requeue(pathToQueue = this) { + if (pathToQueue.removed) return; + const contexts = this.contexts; + + for (var _iterator2 = contexts, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) { + var _ref2; + + if (_isArray2) { + if (_i2 >= _iterator2.length) break; + _ref2 = _iterator2[_i2++]; + } else { + _i2 = _iterator2.next(); + if (_i2.done) break; + _ref2 = _i2.value; + } + + const context = _ref2; + context.maybeQueue(pathToQueue); + } +} + +function _getQueueContexts() { + let path = this; + let contexts = this.contexts; + + while (!contexts.length) { + path = path.parentPath; + if (!path) break; + contexts = path.contexts; + } + + return contexts; +}
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