| // Copyright 2022 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. |
| |
| // Flags: --turbofan --allow-natives-syntax |
| |
| import {struct, array} from 'gc-js-interop-export.mjs'; |
| |
| // Read struct and array with new wasm module. |
| let builder = new WasmModuleBuilder(); |
| let struct_type = builder.addStruct([makeField(kWasmI32, true)]); |
| builder.addFunction('readStruct', makeSig([kWasmExternRef], [kWasmI32])) |
| .exportFunc() |
| .addBody([ |
| kExprLocalGet, 0, // -- |
| kGCPrefix, kExprAnyConvertExtern, // -- |
| kGCPrefix, kExprRefCast, struct_type, // -- |
| kGCPrefix, kExprStructGet, struct_type, 0, // -- |
| ]); |
| builder.addFunction('readArrayLength', makeSig([kWasmExternRef], [kWasmI32])) |
| .exportFunc() |
| .addBody([ |
| kExprLocalGet, 0, // -- |
| kGCPrefix, kExprAnyConvertExtern, // -- |
| kGCPrefix, kExprRefCast, kArrayRefCode, // -- |
| kGCPrefix, kExprArrayLen, |
| ]); |
| |
| let instance = builder.instantiate(); |
| let wasm = instance.exports; |
| assertEquals(42, wasm.readStruct(struct)); |
| assertEquals(2, wasm.readArrayLength(array)); |
| assertTraps(kTrapIllegalCast, () => wasm.readStruct(array)); |
| assertTraps(kTrapIllegalCast, () => wasm.readArrayLength(struct)); |
