"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.print = print;
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var _ast = require("@webassemblyjs/ast");
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var _long = _interopRequireDefault(require("@xtuc/long"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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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 _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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var compact = false;
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var space = " ";
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var quote = function quote(str) {
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return "\"".concat(str, "\"");
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};
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function indent(nb) {
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return Array(nb).fill(space + space).join("");
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} // TODO(sven): allow arbitrary ast nodes
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function print(n) {
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if (n.type === "Program") {
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return printProgram(n, 0);
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} else {
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throw new Error("Unsupported node in print of type: " + String(n.type));
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}
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}
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function printProgram(n, depth) {
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return n.body.reduce(function (acc, child) {
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if (child.type === "Module") {
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acc += printModule(child, depth + 1);
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}
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if (child.type === "Func") {
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acc += printFunc(child, depth + 1);
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}
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if (child.type === "BlockComment") {
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acc += printBlockComment(child);
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}
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if (child.type === "LeadingComment") {
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acc += printLeadingComment(child);
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}
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if (compact === false) {
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acc += "\n";
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}
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return acc;
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}, "");
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}
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function printTypeInstruction(n) {
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var out = "";
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out += "(";
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out += "type";
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out += space;
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if (n.id != null) {
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out += printIndex(n.id);
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out += space;
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}
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out += "(";
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out += "func";
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n.functype.params.forEach(function (param) {
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out += space;
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out += "(";
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out += "param";
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out += space;
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out += printFuncParam(param);
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out += ")";
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});
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n.functype.results.forEach(function (result) {
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out += space;
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out += "(";
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out += "result";
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out += space;
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out += result;
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out += ")";
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});
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out += ")"; // func
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out += ")";
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return out;
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}
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function printModule(n, depth) {
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var out = "(";
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out += "module";
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if (typeof n.id === "string") {
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out += space;
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out += n.id;
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}
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if (compact === false) {
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out += "\n";
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} else {
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out += space;
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}
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n.fields.forEach(function (field) {
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if (compact === false) {
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out += indent(depth);
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}
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switch (field.type) {
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case "Func":
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{
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out += printFunc(field, depth + 1);
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break;
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}
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case "TypeInstruction":
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{
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out += printTypeInstruction(field);
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break;
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}
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case "Table":
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{
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out += printTable(field);
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break;
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}
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case "Global":
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{
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out += printGlobal(field, depth + 1);
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break;
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}
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case "ModuleExport":
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{
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out += printModuleExport(field);
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break;
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}
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case "ModuleImport":
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{
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out += printModuleImport(field);
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break;
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}
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case "Memory":
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{
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out += printMemory(field);
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break;
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}
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case "BlockComment":
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{
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out += printBlockComment(field);
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break;
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}
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case "LeadingComment":
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{
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out += printLeadingComment(field);
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break;
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}
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case "Start":
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{
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out += printStart(field);
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break;
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}
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case "Elem":
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{
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out += printElem(field, depth);
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break;
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}
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case "Data":
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{
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out += printData(field, depth);
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break;
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}
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default:
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throw new Error("Unsupported node in printModule: " + String(field.type));
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}
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if (compact === false) {
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out += "\n";
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}
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});
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out += ")";
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return out;
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}
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function printData(n, depth) {
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var out = "";
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out += "(";
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out += "data";
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out += space;
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out += printIndex(n.memoryIndex);
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out += space;
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out += printInstruction(n.offset, depth);
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out += space;
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out += '"';
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n.init.values.forEach(function (byte) {
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// Avoid non-displayable characters
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if (byte <= 31 || byte == 34 || byte == 92 || byte >= 127) {
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out += "\\";
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out += ("00" + byte.toString(16)).substr(-2);
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} else if (byte > 255) {
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throw new Error("Unsupported byte in data segment: " + byte);
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} else {
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out += String.fromCharCode(byte);
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}
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});
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out += '"';
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out += ")";
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return out;
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}
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function printElem(n, depth) {
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var out = "";
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out += "(";
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out += "elem";
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out += space;
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out += printIndex(n.table);
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var _n$offset = _slicedToArray(n.offset, 1),
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firstOffset = _n$offset[0];
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out += space;
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out += "(";
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out += "offset";
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out += space;
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out += printInstruction(firstOffset, depth);
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out += ")";
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n.funcs.forEach(function (func) {
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out += space;
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out += printIndex(func);
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});
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out += ")";
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return out;
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}
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function printStart(n) {
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var out = "";
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out += "(";
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out += "start";
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out += space;
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out += printIndex(n.index);
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out += ")";
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return out;
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}
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function printLeadingComment(n) {
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// Don't print leading comments in compact mode
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if (compact === true) {
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return "";
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}
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var out = "";
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out += ";;";
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out += n.value;
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out += "\n";
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return out;
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}
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function printBlockComment(n) {
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// Don't print block comments in compact mode
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if (compact === true) {
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return "";
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}
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var out = "";
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out += "(;";
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out += n.value;
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out += ";)";
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out += "\n";
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return out;
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}
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function printSignature(n) {
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var out = "";
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n.params.forEach(function (param) {
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out += space;
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out += "(";
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out += "param";
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out += space;
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out += printFuncParam(param);
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out += ")";
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});
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n.results.forEach(function (result) {
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out += space;
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out += "(";
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out += "result";
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out += space;
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out += result;
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out += ")";
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});
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return out;
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}
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function printModuleImportDescr(n) {
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var out = "";
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if (n.type === "FuncImportDescr") {
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out += "(";
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out += "func";
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if ((0, _ast.isAnonymous)(n.id) === false) {
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out += space;
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out += printIdentifier(n.id);
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}
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out += printSignature(n.signature);
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out += ")";
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}
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if (n.type === "GlobalType") {
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out += "(";
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out += "global";
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out += space;
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out += printGlobalType(n);
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out += ")";
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}
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if (n.type === "Table") {
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out += printTable(n);
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}
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return out;
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}
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function printModuleImport(n) {
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var out = "";
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out += "(";
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out += "import";
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out += space;
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out += quote(n.module);
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out += space;
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out += quote(n.name);
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out += space;
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out += printModuleImportDescr(n.descr);
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out += ")";
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return out;
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}
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function printGlobalType(n) {
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var out = "";
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if (n.mutability === "var") {
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out += "(";
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out += "mut";
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out += space;
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out += n.valtype;
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out += ")";
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} else {
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out += n.valtype;
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}
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return out;
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}
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function printGlobal(n, depth) {
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var out = "";
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out += "(";
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out += "global";
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out += space;
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if (n.name != null && (0, _ast.isAnonymous)(n.name) === false) {
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out += printIdentifier(n.name);
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out += space;
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}
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out += printGlobalType(n.globalType);
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out += space;
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n.init.forEach(function (i) {
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out += printInstruction(i, depth + 1);
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});
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out += ")";
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return out;
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}
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function printTable(n) {
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var out = "";
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out += "(";
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out += "table";
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out += space;
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if (n.name != null && (0, _ast.isAnonymous)(n.name) === false) {
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out += printIdentifier(n.name);
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out += space;
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}
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out += printLimit(n.limits);
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out += space;
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out += n.elementType;
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out += ")";
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return out;
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}
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function printFuncParam(n) {
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var out = "";
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if (typeof n.id === "string") {
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out += "$" + n.id;
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out += space;
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}
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out += n.valtype;
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return out;
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}
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function printFunc(n, depth) {
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var out = "";
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out += "(";
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out += "func";
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if (n.name != null) {
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if (n.name.type === "Identifier" && (0, _ast.isAnonymous)(n.name) === false) {
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out += space;
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out += printIdentifier(n.name);
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}
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}
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if (n.signature.type === "Signature") {
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out += printSignature(n.signature);
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} else {
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var index = n.signature;
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out += space;
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out += "(";
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out += "type";
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out += space;
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out += printIndex(index);
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out += ")";
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}
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if (n.body.length > 0) {
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// func is empty since we ignore the default end instruction
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if (n.body.length === 1 && n.body[0].id === "end") {
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out += ")";
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return out;
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}
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if (compact === false) {
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out += "\n";
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}
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n.body.forEach(function (i) {
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if (i.id !== "end") {
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out += indent(depth);
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out += printInstruction(i, depth);
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if (compact === false) {
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out += "\n";
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}
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}
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});
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out += indent(depth - 1) + ")";
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} else {
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out += ")";
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}
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return out;
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}
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function printInstruction(n, depth) {
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switch (n.type) {
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case "Instr":
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// $FlowIgnore
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return printGenericInstruction(n, depth + 1);
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case "BlockInstruction":
|
// $FlowIgnore
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return printBlockInstruction(n, depth + 1);
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case "IfInstruction":
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// $FlowIgnore
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return printIfInstruction(n, depth + 1);
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case "CallInstruction":
|
// $FlowIgnore
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return printCallInstruction(n, depth + 1);
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|
case "CallIndirectInstruction":
|
// $FlowIgnore
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return printCallIndirectIntruction(n, depth + 1);
|
|
case "LoopInstruction":
|
// $FlowIgnore
|
return printLoopInstruction(n, depth + 1);
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|
default:
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throw new Error("Unsupported instruction: " + JSON.stringify(n.type));
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}
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}
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function printCallIndirectIntruction(n, depth) {
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var out = "";
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out += "(";
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out += "call_indirect";
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if (n.signature.type === "Signature") {
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out += printSignature(n.signature);
|
} else if (n.signature.type === "Identifier") {
|
out += space;
|
out += "(";
|
out += "type";
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out += space;
|
out += printIdentifier(n.signature);
|
out += ")";
|
} else {
|
throw new Error("CallIndirectInstruction: unsupported signature " + JSON.stringify(n.signature.type));
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}
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|
out += space;
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|
if (n.intrs != null) {
|
// $FlowIgnore
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n.intrs.forEach(function (i, index) {
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// $FlowIgnore
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out += printInstruction(i, depth + 1); // $FlowIgnore
|
|
if (index !== n.intrs.length - 1) {
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out += space;
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}
|
});
|
}
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out += ")";
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return out;
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}
|
|
function printLoopInstruction(n, depth) {
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var out = "";
|
out += "(";
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out += "loop";
|
|
if (n.label != null && (0, _ast.isAnonymous)(n.label) === false) {
|
out += space;
|
out += printIdentifier(n.label);
|
}
|
|
if (typeof n.resulttype === "string") {
|
out += space;
|
out += "(";
|
out += "result";
|
out += space;
|
out += n.resulttype;
|
out += ")";
|
}
|
|
if (n.instr.length > 0) {
|
n.instr.forEach(function (e) {
|
if (compact === false) {
|
out += "\n";
|
}
|
|
out += indent(depth);
|
out += printInstruction(e, depth + 1);
|
});
|
|
if (compact === false) {
|
out += "\n";
|
out += indent(depth - 1);
|
}
|
}
|
|
out += ")";
|
return out;
|
}
|
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function printCallInstruction(n, depth) {
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var out = "";
|
out += "(";
|
out += "call";
|
out += space;
|
out += printIndex(n.index);
|
|
if (_typeof(n.instrArgs) === "object") {
|
// $FlowIgnore
|
n.instrArgs.forEach(function (arg) {
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out += space;
|
out += printFuncInstructionArg(arg, depth + 1);
|
});
|
}
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|
out += ")";
|
return out;
|
}
|
|
function printIfInstruction(n, depth) {
|
var out = "";
|
out += "(";
|
out += "if";
|
|
if (n.testLabel != null && (0, _ast.isAnonymous)(n.testLabel) === false) {
|
out += space;
|
out += printIdentifier(n.testLabel);
|
}
|
|
if (typeof n.result === "string") {
|
out += space;
|
out += "(";
|
out += "result";
|
out += space;
|
out += n.result;
|
out += ")";
|
}
|
|
if (n.test.length > 0) {
|
out += space;
|
n.test.forEach(function (i) {
|
out += printInstruction(i, depth + 1);
|
});
|
}
|
|
if (n.consequent.length > 0) {
|
if (compact === false) {
|
out += "\n";
|
}
|
|
out += indent(depth);
|
out += "(";
|
out += "then";
|
depth++;
|
n.consequent.forEach(function (i) {
|
if (compact === false) {
|
out += "\n";
|
}
|
|
out += indent(depth);
|
out += printInstruction(i, depth + 1);
|
});
|
depth--;
|
|
if (compact === false) {
|
out += "\n";
|
out += indent(depth);
|
}
|
|
out += ")";
|
} else {
|
if (compact === false) {
|
out += "\n";
|
out += indent(depth);
|
}
|
|
out += "(";
|
out += "then";
|
out += ")";
|
}
|
|
if (n.alternate.length > 0) {
|
if (compact === false) {
|
out += "\n";
|
}
|
|
out += indent(depth);
|
out += "(";
|
out += "else";
|
depth++;
|
n.alternate.forEach(function (i) {
|
if (compact === false) {
|
out += "\n";
|
}
|
|
out += indent(depth);
|
out += printInstruction(i, depth + 1);
|
});
|
depth--;
|
|
if (compact === false) {
|
out += "\n";
|
out += indent(depth);
|
}
|
|
out += ")";
|
} else {
|
if (compact === false) {
|
out += "\n";
|
out += indent(depth);
|
}
|
|
out += "(";
|
out += "else";
|
out += ")";
|
}
|
|
if (compact === false) {
|
out += "\n";
|
out += indent(depth - 1);
|
}
|
|
out += ")";
|
return out;
|
}
|
|
function printBlockInstruction(n, depth) {
|
var out = "";
|
out += "(";
|
out += "block";
|
|
if (n.label != null && (0, _ast.isAnonymous)(n.label) === false) {
|
out += space;
|
out += printIdentifier(n.label);
|
}
|
|
if (typeof n.result === "string") {
|
out += space;
|
out += "(";
|
out += "result";
|
out += space;
|
out += n.result;
|
out += ")";
|
}
|
|
if (n.instr.length > 0) {
|
n.instr.forEach(function (i) {
|
if (compact === false) {
|
out += "\n";
|
}
|
|
out += indent(depth);
|
out += printInstruction(i, depth + 1);
|
});
|
|
if (compact === false) {
|
out += "\n";
|
}
|
|
out += indent(depth - 1);
|
out += ")";
|
} else {
|
out += ")";
|
}
|
|
return out;
|
}
|
|
function printGenericInstruction(n, depth) {
|
var out = "";
|
out += "(";
|
|
if (typeof n.object === "string") {
|
out += n.object;
|
out += ".";
|
}
|
|
out += n.id;
|
n.args.forEach(function (arg) {
|
out += space;
|
out += printFuncInstructionArg(arg, depth + 1);
|
});
|
out += ")";
|
return out;
|
}
|
|
function printLongNumberLiteral(n) {
|
if (typeof n.raw === "string") {
|
return n.raw;
|
}
|
|
var _n$value = n.value,
|
low = _n$value.low,
|
high = _n$value.high;
|
var v = new _long.default(low, high);
|
return v.toString();
|
}
|
|
function printFloatLiteral(n) {
|
if (typeof n.raw === "string") {
|
return n.raw;
|
}
|
|
return String(n.value);
|
}
|
|
function printFuncInstructionArg(n, depth) {
|
var out = "";
|
|
if (n.type === "NumberLiteral") {
|
out += printNumberLiteral(n);
|
}
|
|
if (n.type === "LongNumberLiteral") {
|
out += printLongNumberLiteral(n);
|
}
|
|
if (n.type === "Identifier" && (0, _ast.isAnonymous)(n) === false) {
|
out += printIdentifier(n);
|
}
|
|
if (n.type === "ValtypeLiteral") {
|
out += n.name;
|
}
|
|
if (n.type === "FloatLiteral") {
|
out += printFloatLiteral(n);
|
}
|
|
if ((0, _ast.isInstruction)(n)) {
|
out += printInstruction(n, depth + 1);
|
}
|
|
return out;
|
}
|
|
function printNumberLiteral(n) {
|
if (typeof n.raw === "string") {
|
return n.raw;
|
}
|
|
return String(n.value);
|
}
|
|
function printModuleExport(n) {
|
var out = "";
|
out += "(";
|
out += "export";
|
out += space;
|
out += quote(n.name);
|
|
if (n.descr.exportType === "Func") {
|
out += space;
|
out += "(";
|
out += "func";
|
out += space;
|
out += printIndex(n.descr.id);
|
out += ")";
|
} else if (n.descr.exportType === "Global") {
|
out += space;
|
out += "(";
|
out += "global";
|
out += space;
|
out += printIndex(n.descr.id);
|
out += ")";
|
} else if (n.descr.exportType === "Memory" || n.descr.exportType === "Mem") {
|
out += space;
|
out += "(";
|
out += "memory";
|
out += space;
|
out += printIndex(n.descr.id);
|
out += ")";
|
} else if (n.descr.exportType === "Table") {
|
out += space;
|
out += "(";
|
out += "table";
|
out += space;
|
out += printIndex(n.descr.id);
|
out += ")";
|
} else {
|
throw new Error("printModuleExport: unknown type: " + n.descr.exportType);
|
}
|
|
out += ")";
|
return out;
|
}
|
|
function printIdentifier(n) {
|
return "$" + n.value;
|
}
|
|
function printIndex(n) {
|
if (n.type === "Identifier") {
|
return printIdentifier(n);
|
} else if (n.type === "NumberLiteral") {
|
return printNumberLiteral(n);
|
} else {
|
throw new Error("Unsupported index: " + n.type);
|
}
|
}
|
|
function printMemory(n) {
|
var out = "";
|
out += "(";
|
out += "memory";
|
|
if (n.id != null) {
|
out += space;
|
out += printIndex(n.id);
|
out += space;
|
}
|
|
out += printLimit(n.limits);
|
out += ")";
|
return out;
|
}
|
|
function printLimit(n) {
|
var out = "";
|
out += n.min + "";
|
|
if (n.max != null) {
|
out += space;
|
out += String(n.max);
|
}
|
|
return out;
|
}
|
