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// META: global=window,dedicatedworker,jsshell
// META: script=/wasm/jsapi/wasm-module-builder.js
// Instantiate a module with an imported global and return the global.
function instantiateImportedGlobal(module, name, type, mutable, importedStringConstants) {
let builder = new WasmModuleBuilder();
builder.addImportedGlobal(module, name, type, mutable);
builder.addExportOfKind("global", kExternalGlobal, 0);
let bytes = builder.toBuffer();
let mod = new WebAssembly.Module(bytes, { importedStringConstants });
let instance = new WebAssembly.Instance(mod, {});
return instance.exports["global"];
}
const badGlobalTypes = [
[kWasmAnyRef, false],
[kWasmAnyRef, true],
[wasmRefType(kWasmAnyRef), false],
[wasmRefType(kWasmAnyRef), true],
[kWasmFuncRef, false],
[kWasmFuncRef, true],
[wasmRefType(kWasmFuncRef), false],
[wasmRefType(kWasmFuncRef), true],
[kWasmExternRef, true],
[wasmRefType(kWasmExternRef), true],
];
for ([type, mutable] of badGlobalTypes) {
test(() => {
assert_throws_js(WebAssembly.CompileError,
() => instantiateImportedGlobal("'", "constant", type, mutable, "'"),
"type mismatch");
});
}
const goodGlobalTypes = [
[kWasmExternRef, false],
[wasmRefType(kWasmExternRef), false],
];
const constants = [
'',
'\0',
'0',
'0'.repeat(100000),
'\uD83D\uDE00',
];
const namespaces = [
"",
"'",
"strings"
];
for (let namespace of namespaces) {
for (let constant of constants) {
for ([type, mutable] of goodGlobalTypes) {
test(() => {
let result = instantiateImportedGlobal(namespace, constant, type, mutable, namespace);
assert_equals(result.value, constant);
});
}
}
}
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