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09a8440b45
PR-URL: https://github.com/nodejs/node/pull/51362 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
109 lines
3.4 KiB
JavaScript
109 lines
3.4 KiB
JavaScript
// Copyright 2023 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// Flags: --allow-natives-syntax --experimental-wasm-exnref --turboshaft-wasm
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// This file is for the most parts a direct port of
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// test/mjsunit/wasm/exceptions-rethrow.js using the new exception handling
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// proposal.
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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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d8.file.execute("test/mjsunit/wasm/exceptions-utils.js");
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// Test that rethrow expressions can target catch blocks.
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(function TestRethrowInCatch() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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let except = builder.addTag(kSig_v_v);
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let if_sig = builder.addType(makeSig([kWasmExnRef], []));
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builder.addFunction("rethrow0", kSig_v_v)
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.addBody([
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kExprBlock, kExnRefCode,
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kExprTryTable, kWasmVoid, 1,
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kCatchRef, except, 0,
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kExprThrow, except,
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kExprEnd,
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kExprBr, 1,
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kExprEnd,
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kExprThrowRef,
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]).exportFunc();
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builder.addFunction("rethrow1", kSig_i_i)
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.addBody([
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kExprBlock, kExnRefCode,
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kExprTryTable, kWasmI32, 1,
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kCatchRef, except, 0,
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kExprThrow, except,
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kExprEnd,
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kExprUnreachable,
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kExprEnd,
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kExprLocalGet, 0,
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kExprI32Eqz,
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kExprIf, if_sig,
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kExprThrowRef,
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kExprElse,
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kExprDrop,
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kExprEnd,
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kExprI32Const, 23,
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]).exportFunc();
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let instance = builder.instantiate();
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assertWasmThrows(instance, except, [], () => instance.exports.rethrow0());
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assertWasmThrows(instance, except, [], () => instance.exports.rethrow1(0));
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assertEquals(23, instance.exports.rethrow1(1));
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})();
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// Test that an exception being rethrown can be caught by another local catch
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// block in the same function without ever unwinding the activation.
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(function TestRethrowRecatch() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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let except = builder.addTag(kSig_v_v);
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let sig_v_e = builder.addType(makeSig([kWasmExnRef], []));
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builder.addFunction("rethrow_recatch", kSig_i_i)
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.addBody([
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kExprBlock, kExnRefCode,
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kExprTryTable, kWasmVoid, 1,
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kCatchRef, except, 0,
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kExprThrow, except,
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kExprEnd,
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kExprUnreachable,
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kExprEnd,
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kExprBlock, sig_v_e,
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kExprTryTable, sig_v_e, 1,
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kCatchNoRef, except, 0,
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kExprLocalGet, 0,
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kExprI32Eqz,
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kExprIf, sig_v_e,
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kExprThrowRef,
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kExprElse,
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kExprDrop,
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kExprEnd,
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kExprI32Const, 42,
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kExprReturn,
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kExprEnd,
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kExprEnd,
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kExprI32Const, 23,
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]).exportFunc();
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let instance = builder.instantiate();
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assertEquals(23, instance.exports.rethrow_recatch(0));
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assertEquals(42, instance.exports.rethrow_recatch(1));
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})();
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// Test that throw-ref traps if the exception is null.
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(function TestRethrowNullTraps() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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let except = builder.addTag(kSig_v_v);
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let if_sig = builder.addType(makeSig([kWasmExnRef], []));
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builder.addFunction("rethrow_null", kSig_v_v)
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.addBody([
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kExprRefNull, kExnRefCode,
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kExprThrowRef,
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]).exportFunc();
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let instance = builder.instantiate();
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assertTraps(kTrapRethrowNull, () => instance.exports.rethrow_null());
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})();
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