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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-bigint
load("test/mjsunit/wasm/wasm-module-builder.js");
(function TestWasmI64ToJSBigInt() {
let builder = new WasmModuleBuilder();
builder
.addFunction("fn", kSig_l_v) // () -> i64
.addBody([
kExprI64Const, 0x3,
])
.exportFunc();
let module = builder.instantiate();
assertEquals(typeof module.exports.fn(), "bigint");
assertEquals(module.exports.fn(), 3n);
})();
(function TestJSBigIntToWasmI64Global() {
let builder = new WasmModuleBuilder();
let a_global_index = builder
.addImportedGlobal("mod", "a", kWasmI64);
let b_global_index = builder
.addImportedGlobal("mod", "b", kWasmI64);
builder
.addExportOfKind('a', kExternalGlobal, a_global_index)
.addExportOfKind('b', kExternalGlobal, b_global_index)
let module = builder.instantiate({
mod: {
a: 1n,
b: 2n ** 63n,
}
});
assertEquals(module.exports.a.value, 1n);
assertEquals(module.exports.b.value, - (2n ** 63n));
})();
(function TestJSBigIntGlobalImportInvalidType() {
let builder = new WasmModuleBuilder();
builder.addImportedGlobal("mod", "a", kWasmI64);
assertThrows(() => builder.instantiate({mod: { a: {} } }), WebAssembly.LinkError);
})();
(function TestJSBigIntToWasmI64MutableGlobal() {
let builder = new WasmModuleBuilder();
let a_global_index = builder
.addImportedGlobal("mod", "a", kWasmI64, /* mutable = */ true)
builder
.addExportOfKind('a', kExternalGlobal, a_global_index);
// as non object
let fn = () => builder.instantiate({
mod: {
a: 1n,
}
});
assertThrows(fn, WebAssembly.LinkError);
// as WebAssembly.Global object
let module = builder.instantiate({
mod: {
a: new WebAssembly.Global({ value: "i64", mutable: true }, 1n),
}
});
assertEquals(module.exports.a.value, 1n);
})();
(function TestJSBigIntToWasmI64Identity() {
let builder = new WasmModuleBuilder();
builder
.addFunction("f", kSig_l_l) // i64 -> i64
.addBody([
kExprLocalGet, 0,
])
.exportFunc();
let module = builder.instantiate();
let f = module.exports.f;
assertEquals(f(0n), 0n);
assertEquals(f(123n), 123n);
assertEquals(f(-123n), -123n);
assertEquals(f("5"), 5n);
assertThrows(() => f(5), TypeError);
})();
(function TestJSBigIntToWasmI64Projection() {
let builder = new WasmModuleBuilder();
builder
.addFunction("f", kSig_l_ll) // i64 -> i64
.addBody([
kExprLocalGet, 1,
])
.exportFunc();
let module = builder.instantiate();
let f = module.exports.f;
assertEquals(f(1n, 0n), 0n);
assertEquals(f(1n, 123n), 123n);
assertEquals(f(1n, -123n), -123n);
assertEquals(f(1n, "5"), 5n);
assertThrows(() => f(1n, 5), TypeError);
})();
(function TestI64Global() {
let argument = { "value": "i64", "mutable": true };
let global = new WebAssembly.Global(argument);
assertEquals(global.value, 0n); // initial value
global.value = 123n;
assertEquals(global.valueOf(), 123n);
global.value = 2n ** 63n;
assertEquals(global.valueOf(), - (2n ** 63n));
})();
(function TestI64GlobalValueOf() {
let argument = { "value": "i64" };
// as literal
let global = new WebAssembly.Global(argument, {
valueOf() {
return 123n;
}
});
assertEquals(global.value, 123n);
// as string
let global2 = new WebAssembly.Global(argument, {
valueOf() {
return "321";
}
});
assertEquals(global2.value, 321n);
})();
(function TestInvalidValtypeGlobalErrorMessage() {
let argument = { "value": "some string" };
assertThrows(() => new WebAssembly.Global(argument), TypeError);
try {
new WebAssembly.Global(argument);
} catch (e) {
assertContains("'value' must be", e.message);
assertContains("i64", e.message);
}
})();
(function TestGlobalI64ValueWrongType() {
let argument = { "value": "i64" };
assertThrows(() => new WebAssembly.Global(argument, 666), TypeError);
})();
(function TestGlobalI64SetWrongType() {
let argument = { "value": "i64", "mutable": true };
let global = new WebAssembly.Global(argument);
assertThrows(() => global.value = 1, TypeError);
})();
(function TestFuncParamF64PassingBigInt() {
let builder = new WasmModuleBuilder();
builder
.addFunction("f", kSig_v_d) // f64 -> ()
.addBody([])
.exportFunc();
let module = builder.instantiate();
assertThrows(() => module.exports.f(123n), TypeError);
})();
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