diff options
Diffstat (limited to 'node_modules/@babel/traverse/lib/path/context.js')
| -rw-r--r-- | node_modules/@babel/traverse/lib/path/context.js | 263 |
1 files changed, 263 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 0000000..b11f08d --- /dev/null +++ b/node_modules/@babel/traverse/lib/path/context.js @@ -0,0 +1,263 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports._call = _call; +exports._getQueueContexts = _getQueueContexts; +exports._resyncKey = _resyncKey; +exports._resyncList = _resyncList; +exports._resyncParent = _resyncParent; +exports._resyncRemoved = _resyncRemoved; +exports.call = call; +exports.isBlacklisted = exports.isDenylisted = isDenylisted; +exports.popContext = popContext; +exports.pushContext = pushContext; +exports.requeue = requeue; +exports.resync = resync; +exports.setContext = setContext; +exports.setKey = setKey; +exports.setScope = setScope; +exports.setup = setup; +exports.skip = skip; +exports.skipKey = skipKey; +exports.stop = stop; +exports.visit = visit; + +var _traverseNode = require("../traverse-node"); + +var _index = require("./index"); + +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 (const fn of fns) { + 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 ${fn}`); + } + + if (this.node !== node) return true; + if (this._traverseFlags > 0) return true; + } + + return false; +} + +function isDenylisted() { + var _this$opts$denylist; + + const denylist = (_this$opts$denylist = this.opts.denylist) != null ? _this$opts$denylist : this.opts.blacklist; + return denylist && denylist.indexOf(this.node.type) > -1; +} + +function restoreContext(path, context) { + if (path.context !== context) { + path.context = context; + path.state = context.state; + path.opts = context.opts; + } +} + +function visit() { + if (!this.node) { + return false; + } + + if (this.isDenylisted()) { + return false; + } + + if (this.opts.shouldSkip && this.opts.shouldSkip(this)) { + return false; + } + + const currentContext = this.context; + + if (this.shouldSkip || this.call("enter")) { + this.debug("Skip..."); + return this.shouldStop; + } + + restoreContext(this, currentContext); + this.debug("Recursing into..."); + this.shouldStop = (0, _traverseNode.traverseNode)(this.node, this.opts, this.scope, this.state, this, this.skipKeys); + restoreContext(this, currentContext); + this.call("exit"); + return this.shouldStop; +} + +function skip() { + this.shouldSkip = true; +} + +function skipKey(key) { + if (this.skipKeys == null) { + this.skipKeys = {}; + } + + this.skipKeys[key] = true; +} + +function stop() { + this._traverseFlags |= _index.SHOULD_SKIP | _index.SHOULD_STOP; +} + +function setScope() { + if (this.opts && this.opts.noScope) return; + let path = this.parentPath; + if (this.key === "key" && path.isMethod()) path = path.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) { + if (this.skipKeys != null) { + this.skipKeys = {}; + } + + this._traverseFlags = 0; + + 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 of Object.keys(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.listKey = listKey; + this.container = container; + this.parentPath = parentPath || this.parentPath; + this.setKey(key); +} + +function setKey(key) { + var _this$node; + + this.key = key; + this.node = this.container[this.key]; + this.type = (_this$node = this.node) == null ? void 0 : _this$node.type; +} + +function requeue(pathToQueue = this) { + if (pathToQueue.removed) return; + ; + const contexts = this.contexts; + + for (const context of contexts) { + 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; +}
\ No newline at end of file |