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1 files changed, 180 insertions, 0 deletions

diff --git a/node_modules/@webassemblyjs/ast/esm/utils.js b/node_modules/@webassemblyjs/ast/esm/utils.js
new file mode 100644
index 00000000..4371aefb
--- /dev/null
+++ b/node_modules/@webassemblyjs/ast/esm/utils.js
@@ -0,0 +1,180 @@
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+import { signatures } from "./signatures";
+import { traverse } from "./traverse";
+import constants from "@webassemblyjs/helper-wasm-bytecode";
+import { getSectionForNode } from "@webassemblyjs/helper-wasm-bytecode";
+export function isAnonymous(ident) {
+  return ident.raw === "";
+}
+export function getSectionMetadata(ast, name) {
+  var section;
+  traverse(ast, {
+    SectionMetadata: function (_SectionMetadata) {
+      function SectionMetadata(_x) {
+        return _SectionMetadata.apply(this, arguments);
+      }
+
+      SectionMetadata.toString = function () {
+        return _SectionMetadata.toString();
+      };
+
+      return SectionMetadata;
+    }(function (_ref) {
+      var node = _ref.node;
+
+      if (node.section === name) {
+        section = node;
+      }
+    })
+  });
+  return section;
+}
+export function getSectionMetadatas(ast, name) {
+  var sections = [];
+  traverse(ast, {
+    SectionMetadata: function (_SectionMetadata2) {
+      function SectionMetadata(_x2) {
+        return _SectionMetadata2.apply(this, arguments);
+      }
+
+      SectionMetadata.toString = function () {
+        return _SectionMetadata2.toString();
+      };
+
+      return SectionMetadata;
+    }(function (_ref2) {
+      var node = _ref2.node;
+
+      if (node.section === name) {
+        sections.push(node);
+      }
+    })
+  });
+  return sections;
+}
+export function sortSectionMetadata(m) {
+  if (m.metadata == null) {
+    console.warn("sortSectionMetadata: no metadata to sort");
+    return;
+  } // $FlowIgnore
+
+
+  m.metadata.sections.sort(function (a, b) {
+    var aId = constants.sections[a.section];
+    var bId = constants.sections[b.section];
+
+    if (typeof aId !== "number" || typeof bId !== "number") {
+      throw new Error("Section id not found");
+    }
+
+    return aId - bId;
+  });
+}
+export function orderedInsertNode(m, n) {
+  assertHasLoc(n);
+  var didInsert = false;
+
+  if (n.type === "ModuleExport") {
+    m.fields.push(n);
+    return;
+  }
+
+  m.fields = m.fields.reduce(function (acc, field) {
+    var fieldEndCol = Infinity;
+
+    if (field.loc != null) {
+      // $FlowIgnore
+      fieldEndCol = field.loc.end.column;
+    } // $FlowIgnore: assertHasLoc ensures that
+
+
+    if (didInsert === false && n.loc.start.column < fieldEndCol) {
+      didInsert = true;
+      acc.push(n);
+    }
+
+    acc.push(field);
+    return acc;
+  }, []); // Handles empty modules or n is the last element
+
+  if (didInsert === false) {
+    m.fields.push(n);
+  }
+}
+export function assertHasLoc(n) {
+  if (n.loc == null || n.loc.start == null || n.loc.end == null) {
+    throw new Error("Internal failure: node (".concat(JSON.stringify(n.type), ") has no location information"));
+  }
+}
+export function getEndOfSection(s) {
+  assertHasLoc(s.size);
+  return s.startOffset + s.size.value + ( // $FlowIgnore
+  s.size.loc.end.column - s.size.loc.start.column);
+}
+export function shiftLoc(node, delta) {
+  // $FlowIgnore
+  node.loc.start.column += delta; // $FlowIgnore
+
+  node.loc.end.column += delta;
+}
+export function shiftSection(ast, node, delta) {
+  if (node.type !== "SectionMetadata") {
+    throw new Error("Can not shift node " + JSON.stringify(node.type));
+  }
+
+  node.startOffset += delta;
+
+  if (_typeof(node.size.loc) === "object") {
+    shiftLoc(node.size, delta);
+  } // Custom sections doesn't have vectorOfSize
+
+
+  if (_typeof(node.vectorOfSize) === "object" && _typeof(node.vectorOfSize.loc) === "object") {
+    shiftLoc(node.vectorOfSize, delta);
+  }
+
+  var sectionName = node.section; // shift node locations within that section
+
+  traverse(ast, {
+    Node: function Node(_ref3) {
+      var node = _ref3.node;
+      var section = getSectionForNode(node);
+
+      if (section === sectionName && _typeof(node.loc) === "object") {
+        shiftLoc(node, delta);
+      }
+    }
+  });
+}
+export function signatureForOpcode(object, name) {
+  var opcodeName = name;
+
+  if (object !== undefined && object !== "") {
+    opcodeName = object + "." + name;
+  }
+
+  var sign = signatures[opcodeName];
+
+  if (sign == undefined) {
+    // TODO: Uncomment this when br_table and others has been done
+    //throw new Error("Invalid opcode: "+opcodeName);
+    return [object, object];
+  }
+
+  return sign[0];
+}
+export function getUniqueNameGenerator() {
+  var inc = {};
+  return function () {
+    var prefix = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
+
+    if (!(prefix in inc)) {
+      inc[prefix] = 0;
+    } else {
+      inc[prefix] = inc[prefix] + 1;
+    }
+
+    return prefix + "_" + inc[prefix];
+  };
+}
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