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"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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293
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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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310
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});
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311
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return out;
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}
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313
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314
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function printModuleImportDescr(n) {
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var out = "";
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316
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317
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if (n.type === "FuncImportDescr") {
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318
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out += "(";
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out += "func";
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320
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321
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if ((0, _ast.isAnonymous)(n.id) === false) {
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322
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out += space;
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out += printIdentifier(n.id);
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}
|
325
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326
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out += printSignature(n.signature);
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327
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out += ")";
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328
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}
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329
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330
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if (n.type === "GlobalType") {
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331
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out += "(";
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332
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out += "global";
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333
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out += space;
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334
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out += printGlobalType(n);
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335
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out += ")";
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336
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}
|
337
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338
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if (n.type === "Table") {
|
339
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out += printTable(n);
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340
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}
|
341
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342
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return out;
|
343
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}
|
344
|
|
345
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function printModuleImport(n) {
|
346
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var out = "";
|
347
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out += "(";
|
348
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out += "import";
|
349
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out += space;
|
350
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out += quote(n.module);
|
351
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out += space;
|
352
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out += quote(n.name);
|
353
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out += space;
|
354
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out += printModuleImportDescr(n.descr);
|
355
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out += ")";
|
356
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return out;
|
357
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}
|
358
|
|
359
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function printGlobalType(n) {
|
360
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var out = "";
|
361
|
|
362
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if (n.mutability === "var") {
|
363
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out += "(";
|
364
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out += "mut";
|
365
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out += space;
|
366
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out += n.valtype;
|
367
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out += ")";
|
368
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} else {
|
369
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out += n.valtype;
|
370
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}
|
371
|
|
372
|
return out;
|
373
|
}
|
374
|
|
375
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function printGlobal(n, depth) {
|
376
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var out = "";
|
377
|
out += "(";
|
378
|
out += "global";
|
379
|
out += space;
|
380
|
|
381
|
if (n.name != null && (0, _ast.isAnonymous)(n.name) === false) {
|
382
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out += printIdentifier(n.name);
|
383
|
out += space;
|
384
|
}
|
385
|
|
386
|
out += printGlobalType(n.globalType);
|
387
|
out += space;
|
388
|
n.init.forEach(function (i) {
|
389
|
out += printInstruction(i, depth + 1);
|
390
|
});
|
391
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out += ")";
|
392
|
return out;
|
393
|
}
|
394
|
|
395
|
function printTable(n) {
|
396
|
var out = "";
|
397
|
out += "(";
|
398
|
out += "table";
|
399
|
out += space;
|
400
|
|
401
|
if (n.name != null && (0, _ast.isAnonymous)(n.name) === false) {
|
402
|
out += printIdentifier(n.name);
|
403
|
out += space;
|
404
|
}
|
405
|
|
406
|
out += printLimit(n.limits);
|
407
|
out += space;
|
408
|
out += n.elementType;
|
409
|
out += ")";
|
410
|
return out;
|
411
|
}
|
412
|
|
413
|
function printFuncParam(n) {
|
414
|
var out = "";
|
415
|
|
416
|
if (typeof n.id === "string") {
|
417
|
out += "$" + n.id;
|
418
|
out += space;
|
419
|
}
|
420
|
|
421
|
out += n.valtype;
|
422
|
return out;
|
423
|
}
|
424
|
|
425
|
function printFunc(n, depth) {
|
426
|
var out = "";
|
427
|
out += "(";
|
428
|
out += "func";
|
429
|
|
430
|
if (n.name != null) {
|
431
|
if (n.name.type === "Identifier" && (0, _ast.isAnonymous)(n.name) === false) {
|
432
|
out += space;
|
433
|
out += printIdentifier(n.name);
|
434
|
}
|
435
|
}
|
436
|
|
437
|
if (n.signature.type === "Signature") {
|
438
|
out += printSignature(n.signature);
|
439
|
} else {
|
440
|
var index = n.signature;
|
441
|
out += space;
|
442
|
out += "(";
|
443
|
out += "type";
|
444
|
out += space;
|
445
|
out += printIndex(index);
|
446
|
out += ")";
|
447
|
}
|
448
|
|
449
|
if (n.body.length > 0) {
|
450
|
// func is empty since we ignore the default end instruction
|
451
|
if (n.body.length === 1 && n.body[0].id === "end") {
|
452
|
out += ")";
|
453
|
return out;
|
454
|
}
|
455
|
|
456
|
if (compact === false) {
|
457
|
out += "\n";
|
458
|
}
|
459
|
|
460
|
n.body.forEach(function (i) {
|
461
|
if (i.id !== "end") {
|
462
|
out += indent(depth);
|
463
|
out += printInstruction(i, depth);
|
464
|
|
465
|
if (compact === false) {
|
466
|
out += "\n";
|
467
|
}
|
468
|
}
|
469
|
});
|
470
|
out += indent(depth - 1) + ")";
|
471
|
} else {
|
472
|
out += ")";
|
473
|
}
|
474
|
|
475
|
return out;
|
476
|
}
|
477
|
|
478
|
function printInstruction(n, depth) {
|
479
|
switch (n.type) {
|
480
|
case "Instr":
|
481
|
// $FlowIgnore
|
482
|
return printGenericInstruction(n, depth + 1);
|
483
|
|
484
|
case "BlockInstruction":
|
485
|
// $FlowIgnore
|
486
|
return printBlockInstruction(n, depth + 1);
|
487
|
|
488
|
case "IfInstruction":
|
489
|
// $FlowIgnore
|
490
|
return printIfInstruction(n, depth + 1);
|
491
|
|
492
|
case "CallInstruction":
|
493
|
// $FlowIgnore
|
494
|
return printCallInstruction(n, depth + 1);
|
495
|
|
496
|
case "CallIndirectInstruction":
|
497
|
// $FlowIgnore
|
498
|
return printCallIndirectIntruction(n, depth + 1);
|
499
|
|
500
|
case "LoopInstruction":
|
501
|
// $FlowIgnore
|
502
|
return printLoopInstruction(n, depth + 1);
|
503
|
|
504
|
default:
|
505
|
throw new Error("Unsupported instruction: " + JSON.stringify(n.type));
|
506
|
}
|
507
|
}
|
508
|
|
509
|
function printCallIndirectIntruction(n, depth) {
|
510
|
var out = "";
|
511
|
out += "(";
|
512
|
out += "call_indirect";
|
513
|
|
514
|
if (n.signature.type === "Signature") {
|
515
|
out += printSignature(n.signature);
|
516
|
} else if (n.signature.type === "Identifier") {
|
517
|
out += space;
|
518
|
out += "(";
|
519
|
out += "type";
|
520
|
out += space;
|
521
|
out += printIdentifier(n.signature);
|
522
|
out += ")";
|
523
|
} else {
|
524
|
throw new Error("CallIndirectInstruction: unsupported signature " + JSON.stringify(n.signature.type));
|
525
|
}
|
526
|
|
527
|
out += space;
|
528
|
|
529
|
if (n.intrs != null) {
|
530
|
// $FlowIgnore
|
531
|
n.intrs.forEach(function (i, index) {
|
532
|
// $FlowIgnore
|
533
|
out += printInstruction(i, depth + 1); // $FlowIgnore
|
534
|
|
535
|
if (index !== n.intrs.length - 1) {
|
536
|
out += space;
|
537
|
}
|
538
|
});
|
539
|
}
|
540
|
|
541
|
out += ")";
|
542
|
return out;
|
543
|
}
|
544
|
|
545
|
function printLoopInstruction(n, depth) {
|
546
|
var out = "";
|
547
|
out += "(";
|
548
|
out += "loop";
|
549
|
|
550
|
if (n.label != null && (0, _ast.isAnonymous)(n.label) === false) {
|
551
|
out += space;
|
552
|
out += printIdentifier(n.label);
|
553
|
}
|
554
|
|
555
|
if (typeof n.resulttype === "string") {
|
556
|
out += space;
|
557
|
out += "(";
|
558
|
out += "result";
|
559
|
out += space;
|
560
|
out += n.resulttype;
|
561
|
out += ")";
|
562
|
}
|
563
|
|
564
|
if (n.instr.length > 0) {
|
565
|
n.instr.forEach(function (e) {
|
566
|
if (compact === false) {
|
567
|
out += "\n";
|
568
|
}
|
569
|
|
570
|
out += indent(depth);
|
571
|
out += printInstruction(e, depth + 1);
|
572
|
});
|
573
|
|
574
|
if (compact === false) {
|
575
|
out += "\n";
|
576
|
out += indent(depth - 1);
|
577
|
}
|
578
|
}
|
579
|
|
580
|
out += ")";
|
581
|
return out;
|
582
|
}
|
583
|
|
584
|
function printCallInstruction(n, depth) {
|
585
|
var out = "";
|
586
|
out += "(";
|
587
|
out += "call";
|
588
|
out += space;
|
589
|
out += printIndex(n.index);
|
590
|
|
591
|
if (_typeof(n.instrArgs) === "object") {
|
592
|
// $FlowIgnore
|
593
|
n.instrArgs.forEach(function (arg) {
|
594
|
out += space;
|
595
|
out += printFuncInstructionArg(arg, depth + 1);
|
596
|
});
|
597
|
}
|
598
|
|
599
|
out += ")";
|
600
|
return out;
|
601
|
}
|
602
|
|
603
|
function printIfInstruction(n, depth) {
|
604
|
var out = "";
|
605
|
out += "(";
|
606
|
out += "if";
|
607
|
|
608
|
if (n.testLabel != null && (0, _ast.isAnonymous)(n.testLabel) === false) {
|
609
|
out += space;
|
610
|
out += printIdentifier(n.testLabel);
|
611
|
}
|
612
|
|
613
|
if (typeof n.result === "string") {
|
614
|
out += space;
|
615
|
out += "(";
|
616
|
out += "result";
|
617
|
out += space;
|
618
|
out += n.result;
|
619
|
out += ")";
|
620
|
}
|
621
|
|
622
|
if (n.test.length > 0) {
|
623
|
out += space;
|
624
|
n.test.forEach(function (i) {
|
625
|
out += printInstruction(i, depth + 1);
|
626
|
});
|
627
|
}
|
628
|
|
629
|
if (n.consequent.length > 0) {
|
630
|
if (compact === false) {
|
631
|
out += "\n";
|
632
|
}
|
633
|
|
634
|
out += indent(depth);
|
635
|
out += "(";
|
636
|
out += "then";
|
637
|
depth++;
|
638
|
n.consequent.forEach(function (i) {
|
639
|
if (compact === false) {
|
640
|
out += "\n";
|
641
|
}
|
642
|
|
643
|
out += indent(depth);
|
644
|
out += printInstruction(i, depth + 1);
|
645
|
});
|
646
|
depth--;
|
647
|
|
648
|
if (compact === false) {
|
649
|
out += "\n";
|
650
|
out += indent(depth);
|
651
|
}
|
652
|
|
653
|
out += ")";
|
654
|
} else {
|
655
|
if (compact === false) {
|
656
|
out += "\n";
|
657
|
out += indent(depth);
|
658
|
}
|
659
|
|
660
|
out += "(";
|
661
|
out += "then";
|
662
|
out += ")";
|
663
|
}
|
664
|
|
665
|
if (n.alternate.length > 0) {
|
666
|
if (compact === false) {
|
667
|
out += "\n";
|
668
|
}
|
669
|
|
670
|
out += indent(depth);
|
671
|
out += "(";
|
672
|
out += "else";
|
673
|
depth++;
|
674
|
n.alternate.forEach(function (i) {
|
675
|
if (compact === false) {
|
676
|
out += "\n";
|
677
|
}
|
678
|
|
679
|
out += indent(depth);
|
680
|
out += printInstruction(i, depth + 1);
|
681
|
});
|
682
|
depth--;
|
683
|
|
684
|
if (compact === false) {
|
685
|
out += "\n";
|
686
|
out += indent(depth);
|
687
|
}
|
688
|
|
689
|
out += ")";
|
690
|
} else {
|
691
|
if (compact === false) {
|
692
|
out += "\n";
|
693
|
out += indent(depth);
|
694
|
}
|
695
|
|
696
|
out += "(";
|
697
|
out += "else";
|
698
|
out += ")";
|
699
|
}
|
700
|
|
701
|
if (compact === false) {
|
702
|
out += "\n";
|
703
|
out += indent(depth - 1);
|
704
|
}
|
705
|
|
706
|
out += ")";
|
707
|
return out;
|
708
|
}
|
709
|
|
710
|
function printBlockInstruction(n, depth) {
|
711
|
var out = "";
|
712
|
out += "(";
|
713
|
out += "block";
|
714
|
|
715
|
if (n.label != null && (0, _ast.isAnonymous)(n.label) === false) {
|
716
|
out += space;
|
717
|
out += printIdentifier(n.label);
|
718
|
}
|
719
|
|
720
|
if (typeof n.result === "string") {
|
721
|
out += space;
|
722
|
out += "(";
|
723
|
out += "result";
|
724
|
out += space;
|
725
|
out += n.result;
|
726
|
out += ")";
|
727
|
}
|
728
|
|
729
|
if (n.instr.length > 0) {
|
730
|
n.instr.forEach(function (i) {
|
731
|
if (compact === false) {
|
732
|
out += "\n";
|
733
|
}
|
734
|
|
735
|
out += indent(depth);
|
736
|
out += printInstruction(i, depth + 1);
|
737
|
});
|
738
|
|
739
|
if (compact === false) {
|
740
|
out += "\n";
|
741
|
}
|
742
|
|
743
|
out += indent(depth - 1);
|
744
|
out += ")";
|
745
|
} else {
|
746
|
out += ")";
|
747
|
}
|
748
|
|
749
|
return out;
|
750
|
}
|
751
|
|
752
|
function printGenericInstruction(n, depth) {
|
753
|
var out = "";
|
754
|
out += "(";
|
755
|
|
756
|
if (typeof n.object === "string") {
|
757
|
out += n.object;
|
758
|
out += ".";
|
759
|
}
|
760
|
|
761
|
out += n.id;
|
762
|
n.args.forEach(function (arg) {
|
763
|
out += space;
|
764
|
out += printFuncInstructionArg(arg, depth + 1);
|
765
|
});
|
766
|
out += ")";
|
767
|
return out;
|
768
|
}
|
769
|
|
770
|
function printLongNumberLiteral(n) {
|
771
|
if (typeof n.raw === "string") {
|
772
|
return n.raw;
|
773
|
}
|
774
|
|
775
|
var _n$value = n.value,
|
776
|
low = _n$value.low,
|
777
|
high = _n$value.high;
|
778
|
var v = new _long.default(low, high);
|
779
|
return v.toString();
|
780
|
}
|
781
|
|
782
|
function printFloatLiteral(n) {
|
783
|
if (typeof n.raw === "string") {
|
784
|
return n.raw;
|
785
|
}
|
786
|
|
787
|
return String(n.value);
|
788
|
}
|
789
|
|
790
|
function printFuncInstructionArg(n, depth) {
|
791
|
var out = "";
|
792
|
|
793
|
if (n.type === "NumberLiteral") {
|
794
|
out += printNumberLiteral(n);
|
795
|
}
|
796
|
|
797
|
if (n.type === "LongNumberLiteral") {
|
798
|
out += printLongNumberLiteral(n);
|
799
|
}
|
800
|
|
801
|
if (n.type === "Identifier" && (0, _ast.isAnonymous)(n) === false) {
|
802
|
out += printIdentifier(n);
|
803
|
}
|
804
|
|
805
|
if (n.type === "ValtypeLiteral") {
|
806
|
out += n.name;
|
807
|
}
|
808
|
|
809
|
if (n.type === "FloatLiteral") {
|
810
|
out += printFloatLiteral(n);
|
811
|
}
|
812
|
|
813
|
if ((0, _ast.isInstruction)(n)) {
|
814
|
out += printInstruction(n, depth + 1);
|
815
|
}
|
816
|
|
817
|
return out;
|
818
|
}
|
819
|
|
820
|
function printNumberLiteral(n) {
|
821
|
if (typeof n.raw === "string") {
|
822
|
return n.raw;
|
823
|
}
|
824
|
|
825
|
return String(n.value);
|
826
|
}
|
827
|
|
828
|
function printModuleExport(n) {
|
829
|
var out = "";
|
830
|
out += "(";
|
831
|
out += "export";
|
832
|
out += space;
|
833
|
out += quote(n.name);
|
834
|
|
835
|
if (n.descr.exportType === "Func") {
|
836
|
out += space;
|
837
|
out += "(";
|
838
|
out += "func";
|
839
|
out += space;
|
840
|
out += printIndex(n.descr.id);
|
841
|
out += ")";
|
842
|
} else if (n.descr.exportType === "Global") {
|
843
|
out += space;
|
844
|
out += "(";
|
845
|
out += "global";
|
846
|
out += space;
|
847
|
out += printIndex(n.descr.id);
|
848
|
out += ")";
|
849
|
} else if (n.descr.exportType === "Memory" || n.descr.exportType === "Mem") {
|
850
|
out += space;
|
851
|
out += "(";
|
852
|
out += "memory";
|
853
|
out += space;
|
854
|
out += printIndex(n.descr.id);
|
855
|
out += ")";
|
856
|
} else if (n.descr.exportType === "Table") {
|
857
|
out += space;
|
858
|
out += "(";
|
859
|
out += "table";
|
860
|
out += space;
|
861
|
out += printIndex(n.descr.id);
|
862
|
out += ")";
|
863
|
} else {
|
864
|
throw new Error("printModuleExport: unknown type: " + n.descr.exportType);
|
865
|
}
|
866
|
|
867
|
out += ")";
|
868
|
return out;
|
869
|
}
|
870
|
|
871
|
function printIdentifier(n) {
|
872
|
return "$" + n.value;
|
873
|
}
|
874
|
|
875
|
function printIndex(n) {
|
876
|
if (n.type === "Identifier") {
|
877
|
return printIdentifier(n);
|
878
|
} else if (n.type === "NumberLiteral") {
|
879
|
return printNumberLiteral(n);
|
880
|
} else {
|
881
|
throw new Error("Unsupported index: " + n.type);
|
882
|
}
|
883
|
}
|
884
|
|
885
|
function printMemory(n) {
|
886
|
var out = "";
|
887
|
out += "(";
|
888
|
out += "memory";
|
889
|
|
890
|
if (n.id != null) {
|
891
|
out += space;
|
892
|
out += printIndex(n.id);
|
893
|
out += space;
|
894
|
}
|
895
|
|
896
|
out += printLimit(n.limits);
|
897
|
out += ")";
|
898
|
return out;
|
899
|
}
|
900
|
|
901
|
function printLimit(n) {
|
902
|
var out = "";
|
903
|
out += n.min + "";
|
904
|
|
905
|
if (n.max != null) {
|
906
|
out += space;
|
907
|
out += String(n.max);
|
908
|
}
|
909
|
|
910
|
return out;
|
911
|
}
|