// Copyright 2018 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js"); // Prepare a special error object to throw. var error = new Error("my error"); error.__proto__ = new Proxy(new Error(), { has(target, property, receiver) { assertUnreachable(); } }); // Throw it through a WebAssembly module. var builder = new WasmModuleBuilder(); builder.addImport('mod', 'fun', kSig_v_v); builder.addFunction("funnel", kSig_v_v) .addBody([kExprCallFunction, 0]) .exportFunc(); var instance = builder.instantiate({ mod: {fun: function() { throw error }}}); assertThrows(instance.exports.funnel, Error);