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authorlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:10:59 +0800
committerlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:41:44 +0800
commitfc87c009806dcc98867f6b58efe29b042aa01dee (patch)
tree8f59b3f4a5b66e9dfef2d40c8d318e258a521228 /node_modules/regenerator-transform/lib/meta.js
parent3336b2356ee6152d9c6ae59bd9b87ccbc0958407 (diff)
node: updatemain
Diffstat (limited to 'node_modules/regenerator-transform/lib/meta.js')
-rw-r--r--node_modules/regenerator-transform/lib/meta.js102
1 files changed, 0 insertions, 102 deletions
diff --git a/node_modules/regenerator-transform/lib/meta.js b/node_modules/regenerator-transform/lib/meta.js
deleted file mode 100644
index ad6cec20..00000000
--- a/node_modules/regenerator-transform/lib/meta.js
+++ /dev/null
@@ -1,102 +0,0 @@
-"use strict";
-
-var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
-var _assert = _interopRequireDefault(require("assert"));
-var _util = require("./util.js");
-/**
- * Copyright (c) 2014-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-var mMap = new WeakMap();
-function m(node) {
- if (!mMap.has(node)) {
- mMap.set(node, {});
- }
- return mMap.get(node);
-}
-var hasOwn = Object.prototype.hasOwnProperty;
-function makePredicate(propertyName, knownTypes) {
- function onlyChildren(node) {
- var t = (0, _util.getTypes)();
- t.assertNode(node);
-
- // Assume no side effects until we find out otherwise.
- var result = false;
- function check(child) {
- if (result) {
- // Do nothing.
- } else if (Array.isArray(child)) {
- child.some(check);
- } else if (t.isNode(child)) {
- _assert["default"].strictEqual(result, false);
- result = predicate(child);
- }
- return result;
- }
- var keys = t.VISITOR_KEYS[node.type];
- if (keys) {
- for (var i = 0; i < keys.length; i++) {
- var key = keys[i];
- var child = node[key];
- check(child);
- }
- }
- return result;
- }
- function predicate(node) {
- (0, _util.getTypes)().assertNode(node);
- var meta = m(node);
- if (hasOwn.call(meta, propertyName)) return meta[propertyName];
-
- // Certain types are "opaque," which means they have no side
- // effects or leaps and we don't care about their subexpressions.
- if (hasOwn.call(opaqueTypes, node.type)) return meta[propertyName] = false;
- if (hasOwn.call(knownTypes, node.type)) return meta[propertyName] = true;
- return meta[propertyName] = onlyChildren(node);
- }
- predicate.onlyChildren = onlyChildren;
- return predicate;
-}
-var opaqueTypes = {
- FunctionExpression: true,
- ArrowFunctionExpression: true
-};
-
-// These types potentially have side effects regardless of what side
-// effects their subexpressions have.
-var sideEffectTypes = {
- CallExpression: true,
- // Anything could happen!
- ForInStatement: true,
- // Modifies the key variable.
- UnaryExpression: true,
- // Think delete.
- BinaryExpression: true,
- // Might invoke .toString() or .valueOf().
- AssignmentExpression: true,
- // Side-effecting by definition.
- UpdateExpression: true,
- // Updates are essentially assignments.
- NewExpression: true // Similar to CallExpression.
-};
-
-// These types are the direct cause of all leaps in control flow.
-var leapTypes = {
- YieldExpression: true,
- BreakStatement: true,
- ContinueStatement: true,
- ReturnStatement: true,
- ThrowStatement: true
-};
-
-// All leap types are also side effect types.
-for (var type in leapTypes) {
- if (hasOwn.call(leapTypes, type)) {
- sideEffectTypes[type] = leapTypes[type];
- }
-}
-exports.hasSideEffects = makePredicate("hasSideEffects", sideEffectTypes);
-exports.containsLeap = makePredicate("containsLeap", leapTypes); \ No newline at end of file