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/* Copyright 2021 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// ./test/core/ref_is_null.wast
// ./test/core/ref_is_null.wast:1
let $0 = instantiate(`(module
(func $$f1 (export "funcref") (param $$x funcref) (result i32)
(ref.is_null (local.get $$x))
)
(func $$f2 (export "externref") (param $$x externref) (result i32)
(ref.is_null (local.get $$x))
)
(table $$t1 2 funcref)
(table $$t2 2 externref)
(elem (table $$t1) (i32.const 1) func $$dummy)
(func $$dummy)
(func (export "init") (param $$r externref)
(table.set $$t2 (i32.const 1) (local.get $$r))
)
(func (export "deinit")
(table.set $$t1 (i32.const 1) (ref.null func))
(table.set $$t2 (i32.const 1) (ref.null extern))
)
(func (export "funcref-elem") (param $$x i32) (result i32)
(call $$f1 (table.get $$t1 (local.get $$x)))
)
(func (export "externref-elem") (param $$x i32) (result i32)
(call $$f2 (table.get $$t2 (local.get $$x)))
)
)`);
// ./test/core/ref_is_null.wast:30
assert_return(() => invoke($0, `funcref`, [null]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:31
assert_return(() => invoke($0, `externref`, [null]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:33
assert_return(() => invoke($0, `externref`, [externref(1)]), [value("i32", 0)]);
// ./test/core/ref_is_null.wast:35
invoke($0, `init`, [externref(0)]);
// ./test/core/ref_is_null.wast:37
assert_return(() => invoke($0, `funcref-elem`, [0]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:38
assert_return(() => invoke($0, `externref-elem`, [0]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:40
assert_return(() => invoke($0, `funcref-elem`, [1]), [value("i32", 0)]);
// ./test/core/ref_is_null.wast:41
assert_return(() => invoke($0, `externref-elem`, [1]), [value("i32", 0)]);
// ./test/core/ref_is_null.wast:43
invoke($0, `deinit`, []);
// ./test/core/ref_is_null.wast:45
assert_return(() => invoke($0, `funcref-elem`, [0]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:46
assert_return(() => invoke($0, `externref-elem`, [0]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:48
assert_return(() => invoke($0, `funcref-elem`, [1]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:49
assert_return(() => invoke($0, `externref-elem`, [1]), [value("i32", 1)]);
// ./test/core/ref_is_null.wast:51
assert_invalid(
() => instantiate(`(module (func $$ref-vs-num (param i32) (ref.is_null (local.get 0))))`),
`type mismatch`,
);
// ./test/core/ref_is_null.wast:55
assert_invalid(
() => instantiate(`(module (func $$ref-vs-empty (ref.is_null)))`),
`type mismatch`,
);
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