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// META: global=jsshell
// META: script=/wasm/jsapi/assertions.js
function assert_Table(actual, expected) {
assert_equals(Object.getPrototypeOf(actual), WebAssembly.Table.prototype,
"prototype");
assert_true(Object.isExtensible(actual), "extensible");
assert_equals(actual.length, expected.length, "length");
for (let i = 0; i < expected.length; ++i) {
assert_equals(actual.get(i), null, `actual.get(${i})`);
}
}
test(() => {
assert_function_name(WebAssembly.Table, "Table", "WebAssembly.Table");
}, "name");
test(() => {
assert_function_length(WebAssembly.Table, 1, "WebAssembly.Table");
}, "length");
test(() => {
assert_throws(new TypeError(), () => new WebAssembly.Table());
}, "No arguments");
test(() => {
const argument = { "element": "anyfunc", "initial": 0 };
assert_throws(new TypeError(), () => WebAssembly.Table(argument));
}, "Calling");
test(() => {
assert_throws(new TypeError(), () => new WebAssembly.Table({}));
}, "Empty descriptor");
test(() => {
const invalidArguments = [
undefined,
null,
false,
true,
"",
"test",
Symbol(),
1,
NaN,
{},
];
for (const invalidArgument of invalidArguments) {
assert_throws(new TypeError(),
() => new WebAssembly.Table(invalidArgument),
`new Table(${format_value(invalidArgument)})`);
}
}, "Invalid descriptor argument");
test(() => {
assert_throws(new TypeError(), () => new WebAssembly.Table({ "element": "anyfunc", "initial": undefined }));
}, "Undefined initial value in descriptor");
test(() => {
assert_throws(new TypeError(), () => new WebAssembly.Table({ "element": undefined, "initial": 0 }));
}, "Undefined element value in descriptor");
const outOfRangeValues = [
NaN,
Infinity,
-Infinity,
-1,
0x100000000,
0x1000000000,
];
for (const value of outOfRangeValues) {
test(() => {
assert_throws(new TypeError(), () => new WebAssembly.Table({ "element": "anyfunc", "initial": value }));
}, `Out-of-range initial value in descriptor: ${format_value(value)}`);
test(() => {
assert_throws(new TypeError(), () => new WebAssembly.Table({ "element": "anyfunc", "initial": 0, "maximum": value }));
}, `Out-of-range maximum value in descriptor: ${format_value(value)}`);
}
test(() => {
assert_throws(new RangeError(), () => new WebAssembly.Table({ "element": "anyfunc", "initial": 10, "maximum": 9 }));
}, "Initial value exceeds maximum");
test(() => {
const argument = { "element": "anyfunc", "initial": 0 };
const table = new WebAssembly.Table(argument);
assert_Table(table, { "length": 0 });
}, "Basic (zero)");
test(() => {
const argument = { "element": "anyfunc", "initial": 5 };
const table = new WebAssembly.Table(argument);
assert_Table(table, { "length": 5 });
}, "Basic (non-zero)");
test(() => {
const argument = { "element": "anyfunc", "initial": 0 };
const table = new WebAssembly.Table(argument, {});
assert_Table(table, { "length": 0 });
}, "Stray argument");
test(() => {
const proxy = new Proxy({}, {
has(o, x) {
assert_unreached(`Should not call [[HasProperty]] with ${x}`);
},
get(o, x) {
switch (x) {
case "element":
return "anyfunc";
case "initial":
case "maximum":
return 0;
default:
return undefined;
}
},
});
const table = new WebAssembly.Table(proxy);
assert_Table(table, { "length": 0 });
}, "Proxy descriptor");
test(() => {
const table = new WebAssembly.Table({
"element": {
toString() { return "anyfunc"; },
},
"initial": 1,
});
assert_Table(table, { "length": 1 });
}, "Type conversion for descriptor.element");
test(() => {
const order = [];
new WebAssembly.Table({
get maximum() {
order.push("maximum");
return {
valueOf() {
order.push("maximum valueOf");
return 1;
},
};
},
get initial() {
order.push("initial");
return {
valueOf() {
order.push("initial valueOf");
return 1;
},
};
},
get element() {
order.push("element");
return {
toString() {
order.push("element toString");
return "anyfunc";
},
};
},
});
assert_array_equals(order, [
"element",
"element toString",
"initial",
"initial valueOf",
"maximum",
"maximum valueOf",
]);
}, "Order of evaluation for descriptor");
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