initial commit

node_modules/estree-walker/LICENSE

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+Copyright (c) 2015-20 [these people](https://github.com/Rich-Harris/estree-walker/graphs/contributors)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/estree-walker/README.md

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+# estree-walker
+
+Simple utility for walking an [ESTree](https://github.com/estree/estree)-compliant AST, such as one generated by [acorn](https://github.com/marijnh/acorn).
+
+
+## Installation
+
+```bash
+npm i estree-walker
+```
+
+
+## Usage
+
+```js
+var walk = require('estree-walker').walk;
+var acorn = require('acorn');
+
+ast = acorn.parse(sourceCode, options); // https://github.com/acornjs/acorn
+
+walk(ast, {
+  enter(node, parent, prop, index) {
+    // some code happens
+  },
+  leave(node, parent, prop, index) {
+    // some code happens
+  }
+});
+```
+
+Inside the `enter` function, calling `this.skip()` will prevent the node's children being walked, or the `leave` function (which is optional) being called.
+
+Call `this.replace(new_node)` in either `enter` or `leave` to replace the current node with a new one.
+
+Call `this.remove()` in either `enter` or `leave` to remove the current node.
+
+## Why not use estraverse?
+
+The ESTree spec is evolving to accommodate ES6/7. I've had a couple of experiences where [estraverse](https://github.com/estools/estraverse) was unable to handle an AST generated by recent versions of acorn, because it hard-codes visitor keys.
+
+estree-walker, by contrast, simply enumerates a node's properties to find child nodes (and child lists of nodes), and is therefore resistant to spec changes. It's also much smaller. (The performance, if you're wondering, is basically identical.)
+
+None of which should be taken as criticism of estraverse, which has more features and has been battle-tested in many more situations, and for which I'm very grateful.
+
+
+## License
+
+MIT

node_modules/estree-walker/package.json

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+{
+  "name": "estree-walker",
+  "description": "Traverse an ESTree-compliant AST",
+  "version": "3.0.1",
+  "private": false,
+  "author": "Rich Harris",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Rich-Harris/estree-walker"
+  },
+  "type": "module",
+  "module": "./src/index.js",
+  "exports": {
+    "./package.json": "./package.json",
+    ".": {
+      "import": "./src/index.js"
+    }
+  },
+  "types": "types/index.d.ts",
+  "scripts": {
+    "prepublishOnly": "tsc && npm test",
+    "test": "uvu test"
+  },
+  "devDependencies": {
+    "@types/estree": "0.0.42",
+    "typescript": "^3.7.5",
+    "uvu": "^0.5.1"
+  },
+  "files": [
+    "src",
+    "types",
+    "README.md"
+  ]
+}

node_modules/estree-walker/src/async.js

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+// @ts-check
+import { WalkerBase } from './walker.js';
+
+/** @typedef { import('estree').BaseNode} BaseNode */
+/** @typedef { import('./walker').WalkerContext} WalkerContext */
+
+/** @typedef {(
+ *    this: WalkerContext,
+ *    node: BaseNode,
+ *    parent: BaseNode,
+ *    key: string,
+ *    index: number
+ * ) => Promise<void>} AsyncHandler */
+
+export class AsyncWalker extends WalkerBase {
+	/**
+	 *
+	 * @param {AsyncHandler} enter
+	 * @param {AsyncHandler} leave
+	 */
+	constructor(enter, leave) {
+		super();
+
+		/** @type {AsyncHandler} */
+		this.enter = enter;
+
+		/** @type {AsyncHandler} */
+		this.leave = leave;
+	}
+
+	/**
+	 *
+	 * @param {BaseNode} node
+	 * @param {BaseNode} parent
+	 * @param {string} [prop]
+	 * @param {number} [index]
+	 * @returns {Promise<BaseNode>}
+	 */
+	async visit(node, parent, prop, index) {
+		if (node) {
+			if (this.enter) {
+				const _should_skip = this.should_skip;
+				const _should_remove = this.should_remove;
+				const _replacement = this.replacement;
+				this.should_skip = false;
+				this.should_remove = false;
+				this.replacement = null;
+
+				await this.enter.call(this.context, node, parent, prop, index);
+
+				if (this.replacement) {
+					node = this.replacement;
+					this.replace(parent, prop, index, node);
+				}
+
+				if (this.should_remove) {
+					this.remove(parent, prop, index);
+				}
+
+				const skipped = this.should_skip;
+				const removed = this.should_remove;
+
+				this.should_skip = _should_skip;
+				this.should_remove = _should_remove;
+				this.replacement = _replacement;
+
+				if (skipped) return node;
+				if (removed) return null;
+			}
+
+			for (const key in node) {
+				const value = node[key];
+
+				if (typeof value !== "object") {
+					continue;
+				} else if (Array.isArray(value)) {
+					for (let i = 0; i < value.length; i += 1) {
+						if (value[i] !== null && typeof value[i].type === 'string') {
+							if (!(await this.visit(value[i], node, key, i))) {
+								// removed
+								i--;
+							}
+						}
+					}
+				} else if (value !== null && typeof value.type === "string") {
+					await this.visit(value, node, key, null);
+				}
+			}
+
+			if (this.leave) {
+				const _replacement = this.replacement;
+				const _should_remove = this.should_remove;
+				this.replacement = null;
+				this.should_remove = false;
+
+				await this.leave.call(this.context, node, parent, prop, index);
+
+				if (this.replacement) {
+					node = this.replacement;
+					this.replace(parent, prop, index, node);
+				}
+
+				if (this.should_remove) {
+					this.remove(parent, prop, index);
+				}
+
+				const removed = this.should_remove;
+
+				this.replacement = _replacement;
+				this.should_remove = _should_remove;
+
+				if (removed) return null;
+			}
+		}
+
+		return node;
+	}
+}

node_modules/estree-walker/src/index.js

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+// @ts-check
+import { SyncWalker } from './sync.js';
+import { AsyncWalker } from './async.js';
+
+/** @typedef { import('estree').BaseNode} BaseNode */
+/** @typedef { import('./sync.js').SyncHandler} SyncHandler */
+/** @typedef { import('./async.js').AsyncHandler} AsyncHandler */
+
+/**
+ *
+ * @param {BaseNode} ast
+ * @param {{
+ *   enter?: SyncHandler
+ *   leave?: SyncHandler
+ * }} walker
+ * @returns {BaseNode}
+ */
+export function walk(ast, { enter, leave }) {
+	const instance = new SyncWalker(enter, leave);
+	return instance.visit(ast, null);
+}
+
+/**
+ *
+ * @param {BaseNode} ast
+ * @param {{
+ *   enter?: AsyncHandler
+ *   leave?: AsyncHandler
+ * }} walker
+ * @returns {Promise<BaseNode>}
+ */
+export async function asyncWalk(ast, { enter, leave }) {
+	const instance = new AsyncWalker(enter, leave);
+	return await instance.visit(ast, null);
+}

node_modules/estree-walker/src/sync.js

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+// @ts-check
+import { WalkerBase } from './walker.js';
+
+/** @typedef { import('estree').BaseNode} BaseNode */
+/** @typedef { import('./walker.js').WalkerContext} WalkerContext */
+
+/** @typedef {(
+ *    this: WalkerContext,
+ *    node: BaseNode,
+ *    parent: BaseNode,
+ *    key: string,
+ *    index: number
+ * ) => void} SyncHandler */
+
+export class SyncWalker extends WalkerBase {
+	/**
+	 *
+	 * @param {SyncHandler} enter
+	 * @param {SyncHandler} leave
+	 */
+	constructor(enter, leave) {
+		super();
+
+		/** @type {SyncHandler} */
+		this.enter = enter;
+
+		/** @type {SyncHandler} */
+		this.leave = leave;
+	}
+
+	/**
+	 *
+	 * @param {BaseNode} node
+	 * @param {BaseNode} parent
+	 * @param {string} [prop]
+	 * @param {number} [index]
+	 * @returns {BaseNode}
+	 */
+	visit(node, parent, prop, index) {
+		if (node) {
+			if (this.enter) {
+				const _should_skip = this.should_skip;
+				const _should_remove = this.should_remove;
+				const _replacement = this.replacement;
+				this.should_skip = false;
+				this.should_remove = false;
+				this.replacement = null;
+
+				this.enter.call(this.context, node, parent, prop, index);
+
+				if (this.replacement) {
+					node = this.replacement;
+					this.replace(parent, prop, index, node);
+				}
+
+				if (this.should_remove) {
+					this.remove(parent, prop, index);
+				}
+
+				const skipped = this.should_skip;
+				const removed = this.should_remove;
+
+				this.should_skip = _should_skip;
+				this.should_remove = _should_remove;
+				this.replacement = _replacement;
+
+				if (skipped) return node;
+				if (removed) return null;
+			}
+
+			for (const key in node) {
+				const value = node[key];
+
+				if (typeof value !== "object") {
+					continue;
+				} else if (Array.isArray(value)) {
+					for (let i = 0; i < value.length; i += 1) {
+						if (value[i] !== null && typeof value[i].type === 'string') {
+							if (!this.visit(value[i], node, key, i)) {
+								// removed
+								i--;
+							}
+						}
+					}
+				} else if (value !== null && typeof value.type === "string") {
+					this.visit(value, node, key, null);
+				}
+			}
+
+			if (this.leave) {
+				const _replacement = this.replacement;
+				const _should_remove = this.should_remove;
+				this.replacement = null;
+				this.should_remove = false;
+
+				this.leave.call(this.context, node, parent, prop, index);
+
+				if (this.replacement) {
+					node = this.replacement;
+					this.replace(parent, prop, index, node);
+				}
+
+				if (this.should_remove) {
+					this.remove(parent, prop, index);
+				}
+
+				const removed = this.should_remove;
+
+				this.replacement = _replacement;
+				this.should_remove = _should_remove;
+
+				if (removed) return null;
+			}
+		}
+
+		return node;
+	}
+}

node_modules/estree-walker/src/walker.js

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+// @ts-check
+/** @typedef { import('estree').BaseNode} BaseNode */
+
+/** @typedef {{
+	skip: () => void;
+	remove: () => void;
+	replace: (node: BaseNode) => void;
+}} WalkerContext */
+
+export class WalkerBase {
+	constructor() {
+		/** @type {boolean} */
+		this.should_skip = false;
+
+		/** @type {boolean} */
+		this.should_remove = false;
+
+		/** @type {BaseNode | null} */
+		this.replacement = null;
+
+		/** @type {WalkerContext} */
+		this.context = {
+			skip: () => (this.should_skip = true),
+			remove: () => (this.should_remove = true),
+			replace: (node) => (this.replacement = node)
+		};
+	}
+
+	/**
+	 *
+	 * @param {any} parent
+	 * @param {string} prop
+	 * @param {number} index
+	 * @param {BaseNode} node
+	 */
+	replace(parent, prop, index, node) {
+		if (parent) {
+			if (index !== null) {
+				parent[prop][index] = node;
+			} else {
+				parent[prop] = node;
+			}
+		}
+	}
+
+	/**
+	 *
+	 * @param {any} parent
+	 * @param {string} prop
+	 * @param {number} index
+	 */
+	remove(parent, prop, index) {
+		if (parent) {
+			if (index !== null) {
+				parent[prop].splice(index, 1);
+			} else {
+				delete parent[prop];
+			}
+		}
+	}
+}

node_modules/estree-walker/types/async.d.ts

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+/** @typedef { import('estree').BaseNode} BaseNode */
+/** @typedef { import('./walker').WalkerContext} WalkerContext */
+/** @typedef {(
+ *    this: WalkerContext,
+ *    node: BaseNode,
+ *    parent: BaseNode,
+ *    key: string,
+ *    index: number
+ * ) => Promise<void>} AsyncHandler */
+export class AsyncWalker extends WalkerBase {
+    /**
+     *
+     * @param {AsyncHandler} enter
+     * @param {AsyncHandler} leave
+     */
+    constructor(enter: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => Promise<void>, leave: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => Promise<void>);
+    /** @type {AsyncHandler} */
+    enter: AsyncHandler;
+    /** @type {AsyncHandler} */
+    leave: AsyncHandler;
+    /**
+     *
+     * @param {BaseNode} node
+     * @param {BaseNode} parent
+     * @param {string} [prop]
+     * @param {number} [index]
+     * @returns {Promise<BaseNode>}
+     */
+    visit(node: import("estree").BaseNode, parent: import("estree").BaseNode, prop?: string, index?: number): Promise<import("estree").BaseNode>;
+    should_skip: any;
+    should_remove: any;
+    replacement: any;
+}
+export type BaseNode = import("estree").BaseNode;
+export type WalkerContext = {
+    skip: () => void;
+    remove: () => void;
+    replace: (node: import("estree").BaseNode) => void;
+};
+export type AsyncHandler = (this: {
+    skip: () => void;
+    remove: () => void;
+    replace: (node: import("estree").BaseNode) => void;
+}, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => Promise<void>;
+import { WalkerBase } from "./walker.js";

node_modules/estree-walker/types/index.d.ts

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+/** @typedef { import('estree').BaseNode} BaseNode */
+/** @typedef { import('./sync.js').SyncHandler} SyncHandler */
+/** @typedef { import('./async.js').AsyncHandler} AsyncHandler */
+/**
+ *
+ * @param {BaseNode} ast
+ * @param {{
+ *   enter?: SyncHandler
+ *   leave?: SyncHandler
+ * }} walker
+ * @returns {BaseNode}
+ */
+export function walk(ast: import("estree").BaseNode, { enter, leave }: {
+    enter?: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => void;
+    leave?: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => void;
+}): import("estree").BaseNode;
+/**
+ *
+ * @param {BaseNode} ast
+ * @param {{
+ *   enter?: AsyncHandler
+ *   leave?: AsyncHandler
+ * }} walker
+ * @returns {Promise<BaseNode>}
+ */
+export function asyncWalk(ast: import("estree").BaseNode, { enter, leave }: {
+    enter?: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => Promise<void>;
+    leave?: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => Promise<void>;
+}): Promise<import("estree").BaseNode>;
+export type BaseNode = import("estree").BaseNode;
+export type SyncHandler = (this: {
+    skip: () => void;
+    remove: () => void;
+    replace: (node: import("estree").BaseNode) => void;
+}, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => void;
+export type AsyncHandler = (this: {
+    skip: () => void;
+    remove: () => void;
+    replace: (node: import("estree").BaseNode) => void;
+}, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => Promise<void>;

node_modules/estree-walker/types/sync.d.ts

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+/** @typedef { import('estree').BaseNode} BaseNode */
+/** @typedef { import('./walker.js').WalkerContext} WalkerContext */
+/** @typedef {(
+ *    this: WalkerContext,
+ *    node: BaseNode,
+ *    parent: BaseNode,
+ *    key: string,
+ *    index: number
+ * ) => void} SyncHandler */
+export class SyncWalker extends WalkerBase {
+    /**
+     *
+     * @param {SyncHandler} enter
+     * @param {SyncHandler} leave
+     */
+    constructor(enter: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => void, leave: (this: {
+        skip: () => void;
+        remove: () => void;
+        replace: (node: import("estree").BaseNode) => void;
+    }, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => void);
+    /** @type {SyncHandler} */
+    enter: SyncHandler;
+    /** @type {SyncHandler} */
+    leave: SyncHandler;
+    /**
+     *
+     * @param {BaseNode} node
+     * @param {BaseNode} parent
+     * @param {string} [prop]
+     * @param {number} [index]
+     * @returns {BaseNode}
+     */
+    visit(node: import("estree").BaseNode, parent: import("estree").BaseNode, prop?: string, index?: number): import("estree").BaseNode;
+    should_skip: any;
+    should_remove: any;
+    replacement: any;
+}
+export type BaseNode = import("estree").BaseNode;
+export type WalkerContext = {
+    skip: () => void;
+    remove: () => void;
+    replace: (node: import("estree").BaseNode) => void;
+};
+export type SyncHandler = (this: {
+    skip: () => void;
+    remove: () => void;
+    replace: (node: import("estree").BaseNode) => void;
+}, node: import("estree").BaseNode, parent: import("estree").BaseNode, key: string, index: number) => void;
+import { WalkerBase } from "./walker.js";

node_modules/estree-walker/types/walker.d.ts

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+/** @typedef { import('estree').BaseNode} BaseNode */
+/** @typedef {{
+    skip: () => void;
+    remove: () => void;
+    replace: (node: BaseNode) => void;
+}} WalkerContext */
+export class WalkerBase {
+    /** @type {boolean} */
+    should_skip: boolean;
+    /** @type {boolean} */
+    should_remove: boolean;
+    /** @type {BaseNode | null} */
+    replacement: BaseNode | null;
+    /** @type {WalkerContext} */
+    context: WalkerContext;
+    /**
+     *
+     * @param {any} parent
+     * @param {string} prop
+     * @param {number} index
+     * @param {BaseNode} node
+     */
+    replace(parent: any, prop: string, index: number, node: import("estree").BaseNode): void;
+    /**
+     *
+     * @param {any} parent
+     * @param {string} prop
+     * @param {number} index
+     */
+    remove(parent: any, prop: string, index: number): void;
+}
+export type BaseNode = import("estree").BaseNode;
+export type WalkerContext = {
+    skip: () => void;
+    remove: () => void;
+    replace: (node: import("estree").BaseNode) => void;
+};