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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.isAnonymous = isAnonymous; exports.getSectionMetadata = getSectionMetadata; exports.getSectionMetadatas = getSectionMetadatas; exports.sortSectionMetadata = sortSectionMetadata; exports.orderedInsertNode = orderedInsertNode; exports.assertHasLoc = assertHasLoc; exports.getEndOfSection = getEndOfSection; exports.shiftLoc = shiftLoc; exports.shiftSection = shiftSection; exports.signatureForOpcode = signatureForOpcode; exports.getUniqueNameGenerator = getUniqueNameGenerator; exports.getStartByteOffset = getStartByteOffset; exports.getEndByteOffset = getEndByteOffset; exports.getFunctionBeginingByteOffset = getFunctionBeginingByteOffset; exports.getEndBlockByteOffset = getEndBlockByteOffset; exports.getStartBlockByteOffset = getStartBlockByteOffset; var _signatures = require("./signatures"); var _traverse = require("./traverse"); var _helperWasmBytecode = _interopRequireWildcard(require("@webassemblyjs/helper-wasm-bytecode")); function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); } function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; } function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); } function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } 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; } function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; } function _typeof(obj) { "@babel/helpers - typeof"; 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); } function isAnonymous(ident) { return ident.raw === ""; } function getSectionMetadata(ast, name) { var section; (0, _traverse.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; } function getSectionMetadatas(ast, name) { var sections = []; (0, _traverse.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; } 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 = _helperWasmBytecode["default"].sections[a.section]; var bId = _helperWasmBytecode["default"].sections[b.section]; if (typeof aId !== "number" || typeof bId !== "number") { throw new Error("Section id not found"); } return aId - bId; }); } 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); } } 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")); } } function getEndOfSection(s) { assertHasLoc(s.size); return s.startOffset + s.size.value + (s.size.loc.end.column - s.size.loc.start.column); } function shiftLoc(node, delta) { // $FlowIgnore node.loc.start.column += delta; // $FlowIgnore node.loc.end.column += delta; } 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 (0, _traverse.traverse)(ast, { Node: function Node(_ref3) { var node = _ref3.node; var section = (0, _helperWasmBytecode.getSectionForNode)(node); if (section === sectionName && _typeof(node.loc) === "object") { shiftLoc(node, delta); } } }); } function signatureForOpcode(object, name) { var opcodeName = name; if (object !== undefined && object !== "") { opcodeName = object + "." + name; } var sign = _signatures.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]; } 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]; }; } function getStartByteOffset(n) { // $FlowIgnore if (typeof n.loc === "undefined" || typeof n.loc.start === "undefined") { throw new Error( // $FlowIgnore "Can not get byte offset without loc informations, node: " + String(n.id)); } return n.loc.start.column; } function getEndByteOffset(n) { // $FlowIgnore if (typeof n.loc === "undefined" || typeof n.loc.end === "undefined") { throw new Error("Can not get byte offset without loc informations, node: " + n.type); } return n.loc.end.column; } function getFunctionBeginingByteOffset(n) { if (!(n.body.length > 0)) { throw new Error('n.body.length > 0' + " error: " + (undefined || "unknown")); } var _n$body = _slicedToArray(n.body, 1), firstInstruction = _n$body[0]; return getStartByteOffset(firstInstruction); } function getEndBlockByteOffset(n) { // $FlowIgnore if (!(n.instr.length > 0 || n.body.length > 0)) { throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown")); } var lastInstruction; if (n.instr) { // $FlowIgnore lastInstruction = n.instr[n.instr.length - 1]; } if (n.body) { // $FlowIgnore lastInstruction = n.body[n.body.length - 1]; } if (!(_typeof(lastInstruction) === "object")) { throw new Error('typeof lastInstruction === "object"' + " error: " + (undefined || "unknown")); } // $FlowIgnore return getStartByteOffset(lastInstruction); } function getStartBlockByteOffset(n) { // $FlowIgnore if (!(n.instr.length > 0 || n.body.length > 0)) { throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown")); } var fistInstruction; if (n.instr) { // $FlowIgnore var _n$instr = _slicedToArray(n.instr, 1); fistInstruction = _n$instr[0]; } if (n.body) { // $FlowIgnore var _n$body2 = _slicedToArray(n.body, 1); fistInstruction = _n$body2[0]; } if (!(_typeof(fistInstruction) === "object")) { throw new Error('typeof fistInstruction === "object"' + " error: " + (undefined || "unknown")); } // $FlowIgnore return getStartByteOffset(fistInstruction); }