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// 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.
// Flags: --experimental-wasm-eh --experimental-wasm-anyref --allow-natives-syntax
load("test/mjsunit/wasm/wasm-module-builder.js");
load("test/mjsunit/wasm/exceptions-utils.js");
// Test the encoding of a thrown exception with a null-ref value.
(function TestThrowRefNull() {
print(arguments.callee.name);
let builder = new WasmModuleBuilder();
let except = builder.addException(kSig_v_r);
builder.addFunction("throw_null", kSig_v_v)
.addBody([
kExprRefNull,
kExprThrow, except,
]).exportFunc();
let instance = builder.instantiate();
assertWasmThrows(instance, except, [null], () => instance.exports.throw_null());
})();
// Test throwing/catching the null-ref value.
(function TestThrowCatchRefNull() {
print(arguments.callee.name);
let builder = new WasmModuleBuilder();
let except = builder.addException(kSig_v_r);
builder.addFunction("throw_catch_null", kSig_i_i)
.addBody([
kExprTry, kWasmAnyRef,
kExprGetLocal, 0,
kExprI32Eqz,
kExprIf, kWasmAnyRef,
kExprRefNull,
kExprThrow, except,
kExprElse,
kExprI32Const, 42,
kExprReturn,
kExprEnd,
kExprCatch,
kExprBrOnExn, 0, except,
kExprRethrow,
kExprEnd,
kExprRefIsNull,
kExprIf, kWasmI32,
kExprI32Const, 23,
kExprElse,
kExprUnreachable,
kExprEnd,
]).exportFunc();
let instance = builder.instantiate();
assertEquals(23, instance.exports.throw_catch_null(0));
assertEquals(42, instance.exports.throw_catch_null(1));
})();
// Test the encoding of a thrown exception with a reference type value.
(function TestThrowRefParam() {
print(arguments.callee.name);
let builder = new WasmModuleBuilder();
let except = builder.addException(kSig_v_r);
builder.addFunction("throw_param", kSig_v_r)
.addBody([
kExprGetLocal, 0,
kExprThrow, except,
]).exportFunc();
let instance = builder.instantiate();
let o = new Object();
assertWasmThrows(instance, except, [o], () => instance.exports.throw_param(o));
assertWasmThrows(instance, except, [1], () => instance.exports.throw_param(1));
assertWasmThrows(instance, except, [2.3], () => instance.exports.throw_param(2.3));
assertWasmThrows(instance, except, ["str"], () => instance.exports.throw_param("str"));
})();
// Test throwing/catching the reference type value.
(function TestThrowCatchRefParam() {
print(arguments.callee.name);
let builder = new WasmModuleBuilder();
let except = builder.addException(kSig_v_r);
builder.addFunction("throw_catch_param", kSig_r_r)
.addBody([
kExprTry, kWasmAnyRef,
kExprGetLocal, 0,
kExprThrow, except,
kExprCatch,
kExprBrOnExn, 0, except,
kExprRethrow,
kExprEnd,
]).exportFunc();
let instance = builder.instantiate();
let o = new Object();
assertEquals(o, instance.exports.throw_catch_param(o));
assertEquals(1, instance.exports.throw_catch_param(1));
assertEquals(2.3, instance.exports.throw_catch_param(2.3));
assertEquals("str", instance.exports.throw_catch_param("str"));
})();
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