| 1 |
- {"version":3,"names":["call","key","opts","debug","node","_call","type","fns","fn","ret","state","then","Error","_traverseFlags","isDenylisted","denylist","blacklist","indexOf","restoreContext","path","context","visit","shouldSkip","currentContext","shouldStop","traverseNode","scope","skipKeys","skip","skipKey","stop","SHOULD_SKIP","SHOULD_STOP","setScope","noScope","parentPath","listKey","isMethod","isSwitchStatement","target","getScope","init","setContext","resync","removed","_resyncParent","_resyncList","_resyncKey","parent","container","Array","isArray","i","length","setKey","Object","keys","inList","newContainer","_resyncRemoved","_markRemoved","popContext","contexts","pop","undefined","pushContext","push","setup","requeue","pathToQueue","maybeQueue","_getQueueContexts"],"sources":["../../src/path/context.ts"],"sourcesContent":["// This file contains methods responsible for maintaining a TraversalContext.\n\nimport { traverseNode } from \"../traverse-node\";\nimport { SHOULD_SKIP, SHOULD_STOP } from \"./index\";\nimport type TraversalContext from \"../context\";\nimport type NodePath from \"./index\";\nimport type * as t from \"@babel/types\";\n\nexport function call(this: NodePath, key: string): boolean {\n const opts = this.opts;\n\n this.debug(key);\n\n if (this.node) {\n if (this._call(opts[key])) return true;\n }\n\n if (this.node) {\n return this._call(opts[this.node.type] && opts[this.node.type][key]);\n }\n\n return false;\n}\n\nexport function _call(this: NodePath, fns?: Array<Function>): boolean {\n if (!fns) return false;\n\n for (const fn of fns) {\n if (!fn) continue;\n\n const node = this.node;\n if (!node) return true;\n\n const ret = fn.call(this.state, this, this.state);\n if (ret && typeof ret === \"object\" && typeof ret.then === \"function\") {\n throw new Error(\n `You appear to be using a plugin with an async traversal visitor, ` +\n `which your current version of Babel does not support. ` +\n `If you're using a published plugin, you may need to upgrade ` +\n `your @babel/core version.`,\n );\n }\n if (ret) {\n throw new Error(`Unexpected return value from visitor method ${fn}`);\n }\n\n // node has been replaced, it will have been requeued\n if (this.node !== node) return true;\n\n // this.shouldSkip || this.shouldStop || this.removed\n if (this._traverseFlags > 0) return true;\n }\n\n return false;\n}\n\nexport function isDenylisted(this: NodePath): boolean {\n const denylist = this.opts.denylist ?? this.opts.blacklist;\n return denylist && denylist.indexOf(this.node.type) > -1;\n}\n\n// TODO: Remove in Babel 8\nexport { isDenylisted as isBlacklisted };\n\nfunction restoreContext(path: NodePath, context: TraversalContext) {\n if (path.context !== context) {\n path.context = context;\n path.state = context.state;\n path.opts = context.opts;\n }\n}\n\nexport function visit(this: NodePath): boolean {\n if (!this.node) {\n return false;\n }\n\n if (this.isDenylisted()) {\n return false;\n }\n\n if (this.opts.shouldSkip && this.opts.shouldSkip(this)) {\n return false;\n }\n\n const currentContext = this.context;\n // Note: We need to check \"this.shouldSkip\" first because\n // another visitor can set it to true. Usually .shouldSkip is false\n // before calling the enter visitor, but it can be true in case of\n // a requeued node (e.g. by .replaceWith()) that is then marked\n // with .skip().\n if (this.shouldSkip || this.call(\"enter\")) {\n this.debug(\"Skip...\");\n return this.shouldStop;\n }\n restoreContext(this, currentContext);\n\n this.debug(\"Recursing into...\");\n this.shouldStop = traverseNode(\n this.node,\n this.opts,\n this.scope,\n this.state,\n this,\n this.skipKeys,\n );\n\n restoreContext(this, currentContext);\n\n this.call(\"exit\");\n\n return this.shouldStop;\n}\n\nexport function skip(this: NodePath) {\n this.shouldSkip = true;\n}\n\nexport function skipKey(this: NodePath, key: string) {\n if (this.skipKeys == null) {\n this.skipKeys = {};\n }\n this.skipKeys[key] = true;\n}\n\nexport function stop(this: NodePath) {\n // this.shouldSkip = true; this.shouldStop = true;\n this._traverseFlags |= SHOULD_SKIP | SHOULD_STOP;\n}\n\nexport function setScope(this: NodePath) {\n if (this.opts && this.opts.noScope) return;\n\n let path = this.parentPath;\n\n if (\n // Skip method scope if is computed method key or decorator expression\n ((this.key === \"key\" || this.listKey === \"decorators\") &&\n path.isMethod()) ||\n // Skip switch scope if for discriminant (`x` in `switch (x) {}`).\n (this.key === \"discriminant\" && path.isSwitchStatement())\n ) {\n path = path.parentPath;\n }\n\n let target;\n while (path && !target) {\n if (path.opts && path.opts.noScope) return;\n\n target = path.scope;\n path = path.parentPath;\n }\n\n this.scope = this.getScope(target);\n if (this.scope) this.scope.init();\n}\n\nexport function setContext<S = unknown>(\n this: NodePath,\n context?: TraversalContext<S>,\n) {\n if (this.skipKeys != null) {\n this.skipKeys = {};\n }\n // this.shouldSkip = false; this.shouldStop = false; this.removed = false;\n this._traverseFlags = 0;\n\n if (context) {\n this.context = context;\n this.state = context.state;\n this.opts = context.opts;\n }\n\n this.setScope();\n\n return this;\n}\n\n/**\n * Here we resync the node paths `key` and `container`. If they've changed according\n * to what we have stored internally then we attempt to resync by crawling and looking\n * for the new values.\n */\n\nexport function resync(this: NodePath) {\n if (this.removed) return;\n\n this._resyncParent();\n this._resyncList();\n this._resyncKey();\n //this._resyncRemoved();\n}\n\nexport function _resyncParent(this: NodePath) {\n if (this.parentPath) {\n this.parent = this.parentPath.node;\n }\n}\n\nexport function _resyncKey(this: NodePath) {\n if (!this.container) return;\n\n if (\n this.node ===\n // @ts-expect-error this.key should present in this.container\n this.container[this.key]\n ) {\n return;\n }\n\n // grrr, path key is out of sync. this is likely due to a modification to the AST\n // not done through our path APIs\n\n if (Array.isArray(this.container)) {\n for (let i = 0; i < this.container.length; i++) {\n if (this.container[i] === this.node) {\n return this.setKey(i);\n }\n }\n } else {\n for (const key of Object.keys(this.container)) {\n // @ts-expect-error this.key should present in this.container\n if (this.container[key] === this.node) {\n return this.setKey(key);\n }\n }\n }\n\n // ¯\\_(ツ)_/¯ who knows where it's gone lol\n this.key = null;\n}\n\nexport function _resyncList(this: NodePath) {\n if (!this.parent || !this.inList) return;\n\n const newContainer =\n // @ts-expect-error this.listKey should present in this.parent\n this.parent[this.listKey];\n if (this.container === newContainer) return;\n\n // container is out of sync. this is likely the result of it being reassigned\n this.container = newContainer || null;\n}\n\nexport function _resyncRemoved(this: NodePath) {\n if (\n this.key == null ||\n !this.container ||\n // @ts-expect-error this.key should present in this.container\n this.container[this.key] !== this.node\n ) {\n this._markRemoved();\n }\n}\n\nexport function popContext(this: NodePath) {\n this.contexts.pop();\n if (this.contexts.length > 0) {\n this.setContext(this.contexts[this.contexts.length - 1]);\n } else {\n this.setContext(undefined);\n }\n}\n\nexport function pushContext(this: NodePath, context: TraversalContext) {\n this.contexts.push(context);\n this.setContext(context);\n}\n\nexport function setup(\n this: NodePath,\n parentPath: NodePath | undefined,\n container: t.Node,\n listKey: string,\n key: string | number,\n) {\n this.listKey = listKey;\n this.container = container;\n\n this.parentPath = parentPath || this.parentPath;\n this.setKey(key);\n}\n\nexport function setKey(this: NodePath, key: string | number) {\n this.key = key;\n this.node =\n // @ts-expect-error this.key must present in this.container\n this.container[this.key];\n this.type = this.node?.type;\n}\n\nexport function requeue(this: NodePath, pathToQueue = this) {\n if (pathToQueue.removed) return;\n\n // If a path is skipped, and then replaced with a\n // new one, the new one shouldn't probably be skipped.\n if (process.env.BABEL_8_BREAKING) {\n pathToQueue.shouldSkip = false;\n }\n\n // TODO(loganfsmyth): This should be switched back to queue in parent contexts\n // automatically once #2892 and #4135 have been resolved. See #4140.\n // let contexts = this._getQueueContexts();\n const contexts = this.contexts;\n\n for (const context of contexts) {\n context.maybeQueue(pathToQueue);\n }\n}\n\nexport function _getQueueContexts(this: NodePath) {\n let path = this;\n let contexts = this.contexts;\n while (!contexts.length) {\n path = path.parentPath;\n if (!path) break;\n contexts = path.contexts;\n }\n return 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