node fixes, updates

1 files changed, 111 insertions, 0 deletions

diff --git a/node_modules/@webassemblyjs/wasm-edit/esm/index.js b/node_modules/@webassemblyjs/wasm-edit/esm/index.js
new file mode 100644
index 00000000..347be0cd
--- /dev/null
+++ b/node_modules/@webassemblyjs/wasm-edit/esm/index.js
@@ -0,0 +1,111 @@
+function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
+
+function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
+
+function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
+
+import { decode } from "@webassemblyjs/wasm-parser";
+import { traverse } from "@webassemblyjs/ast";
+import { cloneNode } from "@webassemblyjs/ast/lib/clone";
+import { shrinkPaddedLEB128 } from "@webassemblyjs/wasm-opt";
+import { getSectionForNode } from "@webassemblyjs/helper-wasm-bytecode";
+import constants from "@webassemblyjs/helper-wasm-bytecode";
+import { applyOperations } from "./apply";
+
+function hashNode(node) {
+  return JSON.stringify(node);
+}
+
+function preprocess(ab) {
+  var optBin = shrinkPaddedLEB128(new Uint8Array(ab));
+  return optBin.buffer;
+}
+
+function sortBySectionOrder(nodes) {
+  var originalOrder = new Map();
+
+  var _iterator = _createForOfIteratorHelper(nodes),
+      _step;
+
+  try {
+    for (_iterator.s(); !(_step = _iterator.n()).done;) {
+      var node = _step.value;
+      originalOrder.set(node, originalOrder.size);
+    }
+  } catch (err) {
+    _iterator.e(err);
+  } finally {
+    _iterator.f();
+  }
+
+  nodes.sort(function (a, b) {
+    var sectionA = getSectionForNode(a);
+    var sectionB = getSectionForNode(b);
+    var aId = constants.sections[sectionA];
+    var bId = constants.sections[sectionB];
+
+    if (typeof aId !== "number" || typeof bId !== "number") {
+      throw new Error("Section id not found");
+    }
+
+    if (aId === bId) {
+      // $FlowIgnore originalOrder is filled for all nodes
+      return originalOrder.get(a) - originalOrder.get(b);
+    }
+
+    return aId - bId;
+  });
+}
+
+export function edit(ab, visitors) {
+  ab = preprocess(ab);
+  var ast = decode(ab);
+  return editWithAST(ast, ab, visitors);
+}
+export function editWithAST(ast, ab, visitors) {
+  var operations = [];
+  var uint8Buffer = new Uint8Array(ab);
+  var nodeBefore;
+
+  function before(type, path) {
+    nodeBefore = cloneNode(path.node);
+  }
+
+  function after(type, path) {
+    if (path.node._deleted === true) {
+      operations.push({
+        kind: "delete",
+        node: path.node
+      }); // $FlowIgnore
+    } else if (hashNode(nodeBefore) !== hashNode(path.node)) {
+      operations.push({
+        kind: "update",
+        oldNode: nodeBefore,
+        node: path.node
+      });
+    }
+  }
+
+  traverse(ast, visitors, before, after);
+  uint8Buffer = applyOperations(ast, uint8Buffer, operations);
+  return uint8Buffer.buffer;
+}
+export function add(ab, newNodes) {
+  ab = preprocess(ab);
+  var ast = decode(ab);
+  return addWithAST(ast, ab, newNodes);
+}
+export function addWithAST(ast, ab, newNodes) {
+  // Sort nodes by insertion order
+  sortBySectionOrder(newNodes);
+  var uint8Buffer = new Uint8Array(ab); // Map node into operations
+
+  var operations = newNodes.map(function (n) {
+    return {
+      kind: "add",
+      node: n
+    };
+  });
+  uint8Buffer = applyOperations(ast, uint8Buffer, operations);
+  return uint8Buffer.buffer;
+}
\ No newline at end of file