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// META: global=window,dedicatedworker,jsshell
// META: script=/wasm/jsapi/wasm-module-builder.js
// META: script=assertions.js
let functions = {};
setup(() => {
const builder = new WasmModuleBuilder();
builder
.addFunction("fn", kSig_v_d)
.addBody([])
.exportFunc();
builder
.addFunction("fn2", kSig_v_v)
.addBody([])
.exportFunc();
const buffer = builder.toBuffer()
const module = new WebAssembly.Module(buffer);
const instance = new WebAssembly.Instance(module, {});
functions = instance.exports;
});
test(() => {
const argument = { "element": "anyfunc", "initial": 5 };
const table = new WebAssembly.Table(argument);
assert_throws_js(TypeError, () => table.get());
}, "Missing arguments: get");
test(t => {
const thisValues = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
WebAssembly.Table,
WebAssembly.Table.prototype,
];
const argument = {
valueOf: t.unreached_func("Should not touch the argument (valueOf)"),
toString: t.unreached_func("Should not touch the argument (toString)"),
};
const fn = WebAssembly.Table.prototype.get;
for (const thisValue of thisValues) {
assert_throws_js(TypeError, () => fn.call(thisValue, argument), `this=${format_value(thisValue)}`);
}
}, "Branding: get");
test(() => {
const argument = { "element": "anyfunc", "initial": 5 };
const table = new WebAssembly.Table(argument);
assert_throws_js(TypeError, () => table.set());
}, "Missing arguments: set");
test(t => {
const thisValues = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
WebAssembly.Table,
WebAssembly.Table.prototype,
];
const argument = {
valueOf: t.unreached_func("Should not touch the argument (valueOf)"),
toString: t.unreached_func("Should not touch the argument (toString)"),
};
const fn = WebAssembly.Table.prototype.set;
for (const thisValue of thisValues) {
assert_throws_js(TypeError, () => fn.call(thisValue, argument, null), `this=${format_value(thisValue)}`);
}
}, "Branding: set");
test(() => {
const argument = { "element": "anyfunc", "initial": 5 };
const table = new WebAssembly.Table(argument);
assert_equal_to_array(table, [null, null, null, null, null]);
const {fn, fn2} = functions;
assert_equals(table.set(0, fn), undefined, "set() returns undefined.");
table.set(2, fn2);
table.set(4, fn);
assert_equal_to_array(table, [fn, null, fn2, null, fn]);
table.set(0, null);
assert_equal_to_array(table, [null, null, fn2, null, fn]);
}, "Basic");
test(() => {
const argument = { "element": "anyfunc", "initial": 5 };
const table = new WebAssembly.Table(argument);
assert_equal_to_array(table, [null, null, null, null, null]);
const {fn, fn2} = functions;
table.set(0, fn);
table.set(2, fn2);
table.set(4, fn);
assert_equal_to_array(table, [fn, null, fn2, null, fn]);
table.grow(4);
assert_equal_to_array(table, [fn, null, fn2, null, fn, null, null, null, null]);
}, "Growing");
test(() => {
const argument = { "element": "anyfunc", "initial": 5 };
const table = new WebAssembly.Table(argument);
assert_equal_to_array(table, [null, null, null, null, null]);
const {fn} = functions;
// -1 is the wrong type hence the type check on entry gets this
// before the range check does.
assert_throws_js(TypeError, () => table.set(-1, fn));
assert_throws_js(RangeError, () => table.set(5, fn));
assert_equal_to_array(table, [null, null, null, null, null]);
}, "Setting out-of-bounds");
test(() => {
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument);
assert_equal_to_array(table, [null]);
const invalidArguments = [
undefined,
true,
false,
"test",
Symbol(),
7,
NaN,
{},
];
for (const argument of invalidArguments) {
assert_throws_js(TypeError, () => table.set(0, argument),
`set(${format_value(argument)})`);
}
assert_equal_to_array(table, [null]);
}, "Setting non-function");
test(() => {
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument);
assert_equal_to_array(table, [null]);
const fn = function() {};
assert_throws_js(TypeError, () => table.set(0, fn));
assert_equal_to_array(table, [null]);
}, "Setting non-wasm function");
test(() => {
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument);
assert_equal_to_array(table, [null]);
const fn = () => {};
assert_throws_js(TypeError, () => table.set(0, fn));
assert_equal_to_array(table, [null]);
}, "Setting non-wasm arrow function");
const outOfRangeValues = [
undefined,
NaN,
Infinity,
-Infinity,
-1,
0x100000000,
0x1000000000,
"0x100000000",
{ valueOf() { return 0x100000000; } },
];
for (const value of outOfRangeValues) {
test(() => {
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument);
assert_throws_js(TypeError, () => table.get(value));
}, `Getting out-of-range argument: ${format_value(value)}`);
test(() => {
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument);
assert_throws_js(TypeError, () => table.set(value, null));
}, `Setting out-of-range argument: ${format_value(value)}`);
}
test(() => {
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument);
let called = 0;
const value = {
valueOf() {
called++;
return 0;
},
};
assert_throws_js(TypeError, () => table.set(value, {}));
assert_equals(called, 1);
}, "Order of argument conversion");
test(() => {
const {fn} = functions;
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument);
assert_equals(table.get(0, {}), null);
assert_equals(table.set(0, fn, {}), undefined);
}, "Stray argument");
test(() => {
const builder = new WasmModuleBuilder();
builder
.addFunction("fn", kSig_v_v)
.addBody([])
.exportFunc();
const bin = builder.toBuffer();
const fn = new WebAssembly.Instance(new WebAssembly.Module(bin)).exports.fn;
const argument = { "element": "anyfunc", "initial": 1 };
const table = new WebAssembly.Table(argument, fn);
assert_equals(table.get(0), fn);
table.set(0);
assert_equals(table.get(0), null);
table.set(0, fn);
assert_equals(table.get(0), fn);
assert_throws_js(TypeError, () => table.set(0, {}));
assert_throws_js(TypeError, () => table.set(0, 37));
}, "Arguments for anyfunc table set");
test(() => {
const testObject = {};
const argument = { "element": "externref", "initial": 1 };
const table = new WebAssembly.Table(argument, testObject);
assert_equals(table.get(0), testObject);
table.set(0);
assert_equals(table.get(0), undefined);
table.set(0, testObject);
assert_equals(table.get(0), testObject);
table.set(0, 37);
assert_equals(table.get(0), 37);
}, "Arguments for externref table set");
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