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8.7 KiB
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1 line
8.7 KiB
Plaintext
{"version":3,"names":["_index","require","_t","VISITOR_KEYS","TraversalContext","constructor","scope","opts","state","parentPath","queue","priorityQueue","shouldVisit","node","enter","exit","type","keys","length","key","create","container","listKey","NodePath","get","parent","maybeQueue","path","notPriority","push","visitMultiple","visitQueue","visitSingle","visited","WeakSet","stop","visitIndex","resync","contexts","pushContext","has","add","visit","i","popContext","nodes","Array","isArray","exports","default"],"sources":["../src/context.ts"],"sourcesContent":["import NodePath from \"./path/index.ts\";\nimport { VISITOR_KEYS } from \"@babel/types\";\nimport type Scope from \"./scope/index.ts\";\nimport type { ExplodedTraverseOptions } from \"./index.ts\";\nimport type * as t from \"@babel/types\";\nimport type { Visitor } from \"./types.ts\";\n\nexport default class TraversalContext<S = unknown> {\n constructor(\n scope: Scope,\n opts: ExplodedTraverseOptions<S>,\n state: S,\n parentPath: NodePath,\n ) {\n this.parentPath = parentPath;\n this.scope = scope;\n this.state = state;\n this.opts = opts;\n }\n\n declare parentPath: NodePath;\n declare scope: Scope;\n declare state: S;\n declare opts: ExplodedTraverseOptions<S>;\n queue: Array<NodePath> | null = null;\n priorityQueue: Array<NodePath> | null = null;\n\n /**\n * This method does a simple check to determine whether or not we really need to attempt\n * visit a node. 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key < container.length; key++) {\n const node = container[key];\n if (node && this.shouldVisit(node)) {\n queue.push(this.create(parent, container, key, listKey));\n }\n }\n\n return this.visitQueue(queue);\n }\n\n visitSingle(node: t.Node, key: string): boolean {\n if (\n this.shouldVisit(\n // @ts-expect-error key may not index node\n node[key],\n )\n ) {\n return this.visitQueue([this.create(node, node, key)]);\n } else {\n return false;\n }\n }\n\n visitQueue(queue: Array<NodePath>): boolean {\n // set queue\n this.queue = queue;\n this.priorityQueue = [];\n\n const visited = new WeakSet();\n let stop = false;\n let visitIndex = 0;\n\n // visit the queue\n for (; visitIndex < queue.length; ) {\n const path = queue[visitIndex];\n visitIndex++;\n path.resync();\n\n if (\n path.contexts.length === 0 ||\n path.contexts[path.contexts.length - 1] !== this\n ) {\n // The context might already have been pushed when this path was inserted and queued.\n // If we always re-pushed here, we could get duplicates and risk leaving contexts\n // on the stack after the traversal has completed, which could break things.\n path.pushContext(this);\n }\n\n // this path no longer belongs to the tree\n if (path.key === null) continue;\n\n // ensure we don't visit the same node twice\n const { node } = path;\n if (visited.has(node)) continue;\n if (node) visited.add(node);\n\n if (path.visit()) {\n stop = true;\n break;\n }\n\n if (this.priorityQueue.length) {\n stop = this.visitQueue(this.priorityQueue);\n this.priorityQueue = [];\n this.queue = queue;\n if (stop) break;\n }\n }\n\n // pop contexts\n for (let i = 0; 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