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// Copyright 2020 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-gc
load("test/mjsunit/wasm/wasm-module-builder.js");
(function Test1() {
var exporting_instance = (function () {
var builder = new WasmModuleBuilder();
var sig_index = builder.addType(kSig_i_ii);
var wrong_sig_index = builder.addType(kSig_i_i);
var addition_index = builder.addFunction("addition", sig_index)
.addBody([kExprLocalGet, 0, kExprLocalGet, 1, kExprI32Add])
.exportFunc();
builder.addGlobal(wasmRefType(sig_index), false,
WasmInitExpr.RefFunc(addition_index))
.exportAs("global");
builder.addGlobal(wasmOptRefType(wrong_sig_index), false)
.exportAs("mistyped_global");
return builder.instantiate({});
})();
// Mistyped imported global.
assertThrows(
() => {
var builder = new WasmModuleBuilder();
var sig_index = builder.addType(kSig_i_ii);
builder.addImportedGlobal("imports", "global", wasmOptRefType(sig_index),
false);
builder.instantiate(
{imports: { global: exporting_instance.exports.mistyped_global }})},
WebAssembly.LinkError,
/imported global does not match the expected type/
);
// Mistyped imported global due to cross-module typechecking.
assertThrows(
() => {
var builder = new WasmModuleBuilder();
var sig_index = builder.addType(kSig_i_i);
builder.addImportedGlobal("imports", "global", wasmOptRefType(sig_index),
false);
builder.instantiate(
{imports: { global: exporting_instance.exports.global }})},
WebAssembly.LinkError,
/imported global does not match the expected type/
);
// Non-function imported into function-typed global.
assertThrows(
() => {
var builder = new WasmModuleBuilder();
var sig_index = builder.addType(kSig_i_ii);
builder.addImportedGlobal("imports", "global", wasmOptRefType(sig_index),
false);
builder.instantiate({imports: { global: 42 }})},
WebAssembly.LinkError,
/function-typed object must be null \(if nullable\) or a Wasm function object/
);
// Mistyped function import.
assertThrows(
() => {
var builder = new WasmModuleBuilder();
var sig_index = builder.addType(kSig_i_i);
builder.addImportedGlobal("imports", "global", wasmRefType(sig_index),
false);
builder.instantiate(
{imports: { global: exporting_instance.exports.addition }})},
WebAssembly.LinkError,
/assigned exported function has to be a subtype of the expected type/
);
var instance = (function () {
var builder = new WasmModuleBuilder();
var sig_index = builder.addType(kSig_i_ii);
builder.addImportedGlobal("imports", "global", wasmOptRefType(sig_index),
false);
builder.addFunction("test_import", kSig_i_ii)
.addBody([kExprLocalGet, 0, kExprLocalGet, 1, kExprGlobalGet, 0,
kExprCallRef])
.exportFunc();
return builder.instantiate({imports: {
global: exporting_instance.exports.global
}});
})();
// This module is valid.
assertFalse(instance === undefined);
assertFalse(instance === null);
assertFalse(instance === 0);
// The correct function reference has been passed.
assertEquals(66, instance.exports.test_import(42, 24));
})();
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