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306 lines
8.8 KiB
306 lines
8.8 KiB
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.isAnonymous = isAnonymous;
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exports.getSectionMetadata = getSectionMetadata;
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exports.getSectionMetadatas = getSectionMetadatas;
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exports.sortSectionMetadata = sortSectionMetadata;
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exports.orderedInsertNode = orderedInsertNode;
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exports.assertHasLoc = assertHasLoc;
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exports.getEndOfSection = getEndOfSection;
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exports.shiftLoc = shiftLoc;
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exports.shiftSection = shiftSection;
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exports.signatureForOpcode = signatureForOpcode;
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exports.getUniqueNameGenerator = getUniqueNameGenerator;
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exports.getStartByteOffset = getStartByteOffset;
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exports.getEndByteOffset = getEndByteOffset;
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exports.getFunctionBeginingByteOffset = getFunctionBeginingByteOffset;
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exports.getEndBlockByteOffset = getEndBlockByteOffset;
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exports.getStartBlockByteOffset = getStartBlockByteOffset;
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var _signatures = require("./signatures");
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var _traverse = require("./traverse");
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var _helperWasmBytecode = _interopRequireWildcard(require("@webassemblyjs/helper-wasm-bytecode"));
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
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function _sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_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; }
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function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return _sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }
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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); }
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function isAnonymous(ident) {
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return ident.raw === "";
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}
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function getSectionMetadata(ast, name) {
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var section;
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(0, _traverse.traverse)(ast, {
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SectionMetadata: function (_SectionMetadata) {
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function SectionMetadata(_x) {
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return _SectionMetadata.apply(this, arguments);
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}
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SectionMetadata.toString = function () {
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return _SectionMetadata.toString();
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};
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return SectionMetadata;
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}(function (_ref) {
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var node = _ref.node;
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if (node.section === name) {
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section = node;
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}
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})
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});
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return section;
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}
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function getSectionMetadatas(ast, name) {
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var sections = [];
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(0, _traverse.traverse)(ast, {
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SectionMetadata: function (_SectionMetadata2) {
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function SectionMetadata(_x2) {
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return _SectionMetadata2.apply(this, arguments);
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}
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SectionMetadata.toString = function () {
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return _SectionMetadata2.toString();
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};
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return SectionMetadata;
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}(function (_ref2) {
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var node = _ref2.node;
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if (node.section === name) {
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sections.push(node);
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}
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})
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});
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return sections;
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}
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function sortSectionMetadata(m) {
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if (m.metadata == null) {
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console.warn("sortSectionMetadata: no metadata to sort");
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return;
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} // $FlowIgnore
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m.metadata.sections.sort(function (a, b) {
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var aId = _helperWasmBytecode.default.sections[a.section];
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var bId = _helperWasmBytecode.default.sections[b.section];
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if (typeof aId !== "number" || typeof bId !== "number") {
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throw new Error("Section id not found");
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}
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return aId - bId;
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});
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}
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function orderedInsertNode(m, n) {
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assertHasLoc(n);
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var didInsert = false;
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if (n.type === "ModuleExport") {
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m.fields.push(n);
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return;
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}
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m.fields = m.fields.reduce(function (acc, field) {
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var fieldEndCol = Infinity;
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if (field.loc != null) {
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// $FlowIgnore
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fieldEndCol = field.loc.end.column;
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} // $FlowIgnore: assertHasLoc ensures that
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if (didInsert === false && n.loc.start.column < fieldEndCol) {
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didInsert = true;
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acc.push(n);
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}
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acc.push(field);
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return acc;
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}, []); // Handles empty modules or n is the last element
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if (didInsert === false) {
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m.fields.push(n);
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}
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}
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function assertHasLoc(n) {
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if (n.loc == null || n.loc.start == null || n.loc.end == null) {
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throw new Error("Internal failure: node (".concat(JSON.stringify(n.type), ") has no location information"));
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}
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}
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function getEndOfSection(s) {
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assertHasLoc(s.size);
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return s.startOffset + s.size.value + ( // $FlowIgnore
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s.size.loc.end.column - s.size.loc.start.column);
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}
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function shiftLoc(node, delta) {
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// $FlowIgnore
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node.loc.start.column += delta; // $FlowIgnore
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node.loc.end.column += delta;
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}
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function shiftSection(ast, node, delta) {
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if (node.type !== "SectionMetadata") {
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throw new Error("Can not shift node " + JSON.stringify(node.type));
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}
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node.startOffset += delta;
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if (_typeof(node.size.loc) === "object") {
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shiftLoc(node.size, delta);
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} // Custom sections doesn't have vectorOfSize
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if (_typeof(node.vectorOfSize) === "object" && _typeof(node.vectorOfSize.loc) === "object") {
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shiftLoc(node.vectorOfSize, delta);
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}
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var sectionName = node.section; // shift node locations within that section
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(0, _traverse.traverse)(ast, {
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Node: function Node(_ref3) {
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var node = _ref3.node;
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var section = (0, _helperWasmBytecode.getSectionForNode)(node);
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if (section === sectionName && _typeof(node.loc) === "object") {
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shiftLoc(node, delta);
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}
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}
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});
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}
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function signatureForOpcode(object, name) {
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var opcodeName = name;
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if (object !== undefined && object !== "") {
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opcodeName = object + "." + name;
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}
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var sign = _signatures.signatures[opcodeName];
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if (sign == undefined) {
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// TODO: Uncomment this when br_table and others has been done
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//throw new Error("Invalid opcode: "+opcodeName);
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return [object, object];
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}
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return sign[0];
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}
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function getUniqueNameGenerator() {
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var inc = {};
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return function () {
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var prefix = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
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if (!(prefix in inc)) {
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inc[prefix] = 0;
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} else {
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inc[prefix] = inc[prefix] + 1;
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}
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return prefix + "_" + inc[prefix];
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};
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}
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function getStartByteOffset(n) {
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// $FlowIgnore
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if (typeof n.loc === "undefined" || typeof n.loc.start === "undefined") {
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throw new Error( // $FlowIgnore
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"Can not get byte offset without loc informations, node: " + String(n.id));
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}
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return n.loc.start.column;
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}
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function getEndByteOffset(n) {
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// $FlowIgnore
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if (typeof n.loc === "undefined" || typeof n.loc.end === "undefined") {
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throw new Error("Can not get byte offset without loc informations, node: " + n.type);
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}
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return n.loc.end.column;
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}
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function getFunctionBeginingByteOffset(n) {
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if (!(n.body.length > 0)) {
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throw new Error('n.body.length > 0' + " error: " + (undefined || "unknown"));
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}
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var _n$body = _slicedToArray(n.body, 1),
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firstInstruction = _n$body[0];
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return getStartByteOffset(firstInstruction);
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}
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function getEndBlockByteOffset(n) {
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// $FlowIgnore
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if (!(n.instr.length > 0 || n.body.length > 0)) {
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throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown"));
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}
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var lastInstruction;
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if (n.instr) {
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// $FlowIgnore
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lastInstruction = n.instr[n.instr.length - 1];
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}
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if (n.body) {
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// $FlowIgnore
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lastInstruction = n.body[n.body.length - 1];
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}
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if (!(_typeof(lastInstruction) === "object")) {
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throw new Error('typeof lastInstruction === "object"' + " error: " + (undefined || "unknown"));
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}
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// $FlowIgnore
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return getStartByteOffset(lastInstruction);
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}
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function getStartBlockByteOffset(n) {
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// $FlowIgnore
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if (!(n.instr.length > 0 || n.body.length > 0)) {
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throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown"));
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}
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var fistInstruction;
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if (n.instr) {
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// $FlowIgnore
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var _n$instr = _slicedToArray(n.instr, 1);
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fistInstruction = _n$instr[0];
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}
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if (n.body) {
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// $FlowIgnore
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var _n$body2 = _slicedToArray(n.body, 1);
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fistInstruction = _n$body2[0];
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}
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if (!(_typeof(fistInstruction) === "object")) {
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throw new Error('typeof fistInstruction === "object"' + " error: " + (undefined || "unknown"));
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}
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// $FlowIgnore
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return getStartByteOffset(fistInstruction);
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}
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