node fixes, updates

1 files changed, 148 insertions, 0 deletions

diff --git a/node_modules/@webassemblyjs/ast/lib/node-path.js b/node_modules/@webassemblyjs/ast/lib/node-path.js
new file mode 100644
index 00000000..d7650a2a
--- /dev/null
+++ b/node_modules/@webassemblyjs/ast/lib/node-path.js
@@ -0,0 +1,148 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.createPath = createPath;
+
+function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+function findParent(_ref, cb) {
+  var parentPath = _ref.parentPath;
+
+  if (parentPath == null) {
+    throw new Error("node is root");
+  }
+
+  var currentPath = parentPath;
+
+  while (cb(currentPath) !== false) {
+    // Hit the root node, stop
+    // $FlowIgnore
+    if (currentPath.parentPath == null) {
+      return null;
+    } // $FlowIgnore
+
+
+    currentPath = currentPath.parentPath;
+  }
+
+  return currentPath.node;
+}
+
+function insertBefore(context, newNode) {
+  return insert(context, newNode);
+}
+
+function insertAfter(context, newNode) {
+  return insert(context, newNode, 1);
+}
+
+function insert(_ref2, newNode) {
+  var node = _ref2.node,
+      inList = _ref2.inList,
+      parentPath = _ref2.parentPath,
+      parentKey = _ref2.parentKey;
+  var indexOffset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+  if (!inList) {
+    throw new Error('inList' + " error: " + ("insert can only be used for nodes that are within lists" || "unknown"));
+  }
+
+  if (!(parentPath != null)) {
+    throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
+  }
+
+  // $FlowIgnore
+  var parentList = parentPath.node[parentKey];
+  var indexInList = parentList.findIndex(function (n) {
+    return n === node;
+  });
+  parentList.splice(indexInList + indexOffset, 0, newNode);
+}
+
+function remove(_ref3) {
+  var node = _ref3.node,
+      parentKey = _ref3.parentKey,
+      parentPath = _ref3.parentPath;
+
+  if (!(parentPath != null)) {
+    throw new Error('parentPath != null' + " error: " + ("Can not remove root node" || "unknown"));
+  }
+
+  // $FlowIgnore
+  var parentNode = parentPath.node; // $FlowIgnore
+
+  var parentProperty = parentNode[parentKey];
+
+  if (Array.isArray(parentProperty)) {
+    // $FlowIgnore
+    parentNode[parentKey] = parentProperty.filter(function (n) {
+      return n !== node;
+    });
+  } else {
+    // $FlowIgnore
+    delete parentNode[parentKey];
+  }
+
+  node._deleted = true;
+}
+
+function stop(context) {
+  context.shouldStop = true;
+}
+
+function replaceWith(context, newNode) {
+  // $FlowIgnore
+  var parentNode = context.parentPath.node; // $FlowIgnore
+
+  var parentProperty = parentNode[context.parentKey];
+
+  if (Array.isArray(parentProperty)) {
+    var indexInList = parentProperty.findIndex(function (n) {
+      return n === context.node;
+    });
+    parentProperty.splice(indexInList, 1, newNode);
+  } else {
+    // $FlowIgnore
+    parentNode[context.parentKey] = newNode;
+  }
+
+  context.node._deleted = true;
+  context.node = newNode;
+} // bind the context to the first argument of node operations
+
+
+function bindNodeOperations(operations, context) {
+  var keys = Object.keys(operations);
+  var boundOperations = {};
+  keys.forEach(function (key) {
+    boundOperations[key] = operations[key].bind(null, context);
+  });
+  return boundOperations;
+}
+
+function createPathOperations(context) {
+  // $FlowIgnore
+  return bindNodeOperations({
+    findParent: findParent,
+    replaceWith: replaceWith,
+    remove: remove,
+    insertBefore: insertBefore,
+    insertAfter: insertAfter,
+    stop: stop
+  }, context);
+}
+
+function createPath(context) {
+  var path = _objectSpread({}, context); // $FlowIgnore
+
+
+  Object.assign(path, createPathOperations(path)); // $FlowIgnore
+
+  return path;
+}
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